diff --git a/crates/daqbufp2/src/test/api1.rs b/crates/daqbufp2/src/test/api1.rs
index 2ea6b91..3acffbe 100644
--- a/crates/daqbufp2/src/test/api1.rs
+++ b/crates/daqbufp2/src/test/api1.rs
@@ -8,6 +8,7 @@ use netpod::log::*;
 use netpod::query::api1::Api1Query;
 use netpod::query::api1::Api1Range;
 use netpod::query::api1::ChannelTuple;
+use netpod::ReqCtx;
 use netpod::APP_OCTET;
 use parse::api1_parse;
 use parse::api1_parse::Api1Frame;
@@ -54,6 +55,7 @@ fn events_f64_plain() -> Result<(), Error> {
         return Ok(());
     }
     let fut = async {
+        let ctx = ReqCtx::for_test();
         let rh = require_test_hosts_running()?;
         let cluster = &rh.cluster;
         let node = &cluster.nodes[0];
@@ -64,7 +66,7 @@ fn events_f64_plain() -> Result<(), Error> {
         let ch = ChannelTuple::new(TEST_BACKEND.into(), "test-gen-i32-dim0-v01".into());
         let qu = Api1Query::new(range, vec![ch]);
         let body = serde_json::to_string(&qu)?;
-        let buf = http_post(url, accept, body.into()).await?;
+        let buf = http_post(url, accept, body.into(), &ctx).await?;
         eprintln!("body received: {}", buf.len());
         match api1_parse::api1_frames::<parse::nom::error::VerboseError<_>>(&buf) {
             Ok((_, frames)) => {
diff --git a/crates/daqbufp2/src/test/api1/data_api_python.rs b/crates/daqbufp2/src/test/api1/data_api_python.rs
index 2312af9..0c21054 100644
--- a/crates/daqbufp2/src/test/api1/data_api_python.rs
+++ b/crates/daqbufp2/src/test/api1/data_api_python.rs
@@ -6,6 +6,7 @@ use netpod::range::evrange::NanoRange;
 use netpod::timeunits::MS;
 use netpod::Cluster;
 use netpod::HostPort;
+use netpod::ReqCtx;
 use netpod::SfDbChannel;
 use netpod::APP_JSON;
 use netpod::DATETIME_FMT_3MS;
@@ -23,6 +24,7 @@ async fn fetch_data_api_python_blob(
     end_date: &str,
     cluster: &Cluster,
 ) -> Result<Vec<u8>, Error> {
+    let ctx = ReqCtx::for_test();
     let t1 = Utc::now();
     let node0 = &cluster.nodes[0];
     let beg_date = beg_date.parse()?;
@@ -43,7 +45,7 @@ async fn fetch_data_api_python_blob(
     let hp = HostPort::from_node(node0);
     let url = Url::parse(&format!("http://{}:{}/api/1/query", hp.host, hp.port))?;
     info!("http get {}", url);
-    let buf = httpclient::http_post(url, APP_JSON, query_str).await?;
+    let buf = httpclient::http_post(url, APP_JSON, query_str, &ctx).await?;
     let t2 = chrono::Utc::now();
     let ms = t2.signed_duration_since(t1).num_milliseconds() as u64;
     // TODO add timeout
diff --git a/crates/daqbufp2/src/test/api4/binnedjson.rs b/crates/daqbufp2/src/test/api4/binnedjson.rs
index dcfa983..23a72e4 100644
--- a/crates/daqbufp2/src/test/api4/binnedjson.rs
+++ b/crates/daqbufp2/src/test/api4/binnedjson.rs
@@ -10,6 +10,7 @@ use netpod::range::evrange::NanoRange;
 use netpod::AppendToUrl;
 use netpod::Cluster;
 use netpod::HostPort;
+use netpod::ReqCtx;
 use netpod::SfDbChannel;
 use netpod::APP_JSON;
 use query::api4::binned::BinnedQuery;
@@ -338,6 +339,7 @@ async fn get_binned_json(
     bin_count: u32,
     cluster: &Cluster,
 ) -> Result<JsonValue, Error> {
+    let ctx = ReqCtx::for_test();
     let t1 = Utc::now();
     let node0 = &cluster.nodes[0];
     let beg_date = beg_date.parse()?;
@@ -349,7 +351,7 @@ async fn get_binned_json(
     let mut url = Url::parse(&format!("http://{}:{}/api/4/binned", hp.host, hp.port))?;
     query.append_to_url(&mut url);
     let url = url;
-    let res = httpclient::http_get(url, APP_JSON).await?;
+    let res = httpclient::http_get(url, APP_JSON, &ctx).await?;
     let s = String::from_utf8_lossy(&res.body);
     let res: JsonValue = serde_json::from_str(&s)?;
     let pretty = serde_json::to_string_pretty(&res)?;
diff --git a/crates/daqbufp2/src/test/api4/common.rs b/crates/daqbufp2/src/test/api4/common.rs
index c6c10b5..707e90c 100644
--- a/crates/daqbufp2/src/test/api4/common.rs
+++ b/crates/daqbufp2/src/test/api4/common.rs
@@ -4,6 +4,7 @@ use netpod::log::*;
 use netpod::AppendToUrl;
 use netpod::Cluster;
 use netpod::HostPort;
+use netpod::ReqCtx;
 use netpod::APP_JSON;
 use query::api4::binned::BinnedQuery;
 use query::api4::events::PlainEventsQuery;
@@ -12,13 +13,14 @@ use url::Url;
 
 // TODO improve by a more information-rich return type.
 pub async fn fetch_events_json(query: PlainEventsQuery, cluster: &Cluster) -> Result<JsonValue, Error> {
+    let ctx = ReqCtx::for_test();
     let t1 = Utc::now();
     let node0 = &cluster.nodes[0];
     let hp = HostPort::from_node(node0);
     let mut url = Url::parse(&format!("http://{}:{}/api/4/events", hp.host, hp.port))?;
     query.append_to_url(&mut url);
     let url = url;
-    let res = httpclient::http_get(url, APP_JSON).await?;
+    let res = httpclient::http_get(url, APP_JSON, &ctx).await?;
     let s = String::from_utf8_lossy(&res.body);
     let res: JsonValue = serde_json::from_str(&s)?;
     let pretty = serde_json::to_string_pretty(&res)?;
@@ -32,13 +34,14 @@ pub async fn fetch_events_json(query: PlainEventsQuery, cluster: &Cluster) -> Re
 
 // TODO improve by a more information-rich return type.
 pub async fn fetch_binned_json(query: BinnedQuery, cluster: &Cluster) -> Result<JsonValue, Error> {
+    let ctx = ReqCtx::for_test();
     let t1 = Utc::now();
     let node0 = &cluster.nodes[0];
     let hp = HostPort::from_node(node0);
     let mut url = Url::parse(&format!("http://{}:{}/api/4/binned", hp.host, hp.port))?;
     query.append_to_url(&mut url);
     let url = url;
-    let res = httpclient::http_get(url, APP_JSON).await?;
+    let res = httpclient::http_get(url, APP_JSON, &ctx).await?;
     let s = String::from_utf8_lossy(&res.body);
     let res: JsonValue = serde_json::from_str(&s)?;
     let pretty = serde_json::to_string_pretty(&res)?;
diff --git a/crates/daqbufp2/src/test/api4/eventsjson.rs b/crates/daqbufp2/src/test/api4/eventsjson.rs
index 328f415..4e2e663 100644
--- a/crates/daqbufp2/src/test/api4/eventsjson.rs
+++ b/crates/daqbufp2/src/test/api4/eventsjson.rs
@@ -2,7 +2,6 @@ use crate::nodes::require_test_hosts_running;
 use crate::test::api4::common::fetch_events_json;
 use chrono::Utc;
 use err::Error;
-use http::StatusCode;
 use items_0::WithLen;
 use items_2::eventsdim0::EventsDim0CollectorOutput;
 use netpod::log::*;
@@ -10,6 +9,7 @@ use netpod::range::evrange::NanoRange;
 use netpod::AppendToUrl;
 use netpod::Cluster;
 use netpod::HostPort;
+use netpod::ReqCtx;
 use netpod::SfDbChannel;
 use netpod::APP_JSON;
 use query::api4::events::PlainEventsQuery;
@@ -74,6 +74,7 @@ async fn events_plain_json(
     end_date: &str,
     cluster: &Cluster,
 ) -> Result<JsonValue, Error> {
+    let ctx = ReqCtx::for_test();
     let t1 = Utc::now();
     let node0 = &cluster.nodes[0];
     let beg_date = beg_date.parse()?;
@@ -84,7 +85,7 @@ async fn events_plain_json(
     let mut url = Url::parse(&format!("http://{}:{}/api/4/events", hp.host, hp.port))?;
     query.append_to_url(&mut url);
     let url = url;
-    let res = httpclient::http_get(url, APP_JSON).await?;
+    let res = httpclient::http_get(url, APP_JSON, &ctx).await?;
     let s = String::from_utf8_lossy(&res.body);
     let res: JsonValue = serde_json::from_str(&s)?;
     let pretty = serde_json::to_string_pretty(&res)?;
diff --git a/crates/daqbufp2/src/test/timeweightedjson.rs b/crates/daqbufp2/src/test/timeweightedjson.rs
index 039b4ca..ebd643d 100644
--- a/crates/daqbufp2/src/test/timeweightedjson.rs
+++ b/crates/daqbufp2/src/test/timeweightedjson.rs
@@ -6,6 +6,7 @@ use netpod::query::CacheUsage;
 use netpod::range::evrange::NanoRange;
 use netpod::AppendToUrl;
 use netpod::Cluster;
+use netpod::ReqCtx;
 use netpod::SfDbChannel;
 use netpod::APP_JSON;
 use query::api4::binned::BinnedQuery;
@@ -44,7 +45,8 @@ async fn get_json_common(
     let mut url = Url::parse(&format!("http://{}:{}/api/4/binned", node0.host, node0.port))?;
     query.append_to_url(&mut url);
     let url = url;
-    let res = httpclient::http_get(url, APP_JSON).await?;
+    let ctx = ReqCtx::for_test();
+    let res = httpclient::http_get(url, APP_JSON, &ctx).await?;
     let s = String::from_utf8_lossy(&res.body);
     let t2 = chrono::Utc::now();
     let ms = t2.signed_duration_since(t1).num_milliseconds() as u64;
diff --git a/crates/disk/src/aggtest.rs b/crates/disk/src/aggtest.rs
index 161b818..b3882f9 100644
--- a/crates/disk/src/aggtest.rs
+++ b/crates/disk/src/aggtest.rs
@@ -88,7 +88,7 @@ async fn agg_x_dim_0_inner() {
         true,
         // TODO
         32,
-        netpod::ReqCtx::new("req-000"),
+        netpod::ReqCtx::new("req-000").into(),
     );
     let _ = fut1;
     // TODO add the binning and expectation and await the result.
@@ -150,7 +150,7 @@ async fn agg_x_dim_1_inner() {
         true,
         // TODO
         32,
-        netpod::ReqCtx::new("req-000"),
+        netpod::ReqCtx::new("req-000").into(),
     );
     let _ = fut1;
     // TODO add the binning and expectation and await the result.
diff --git a/crates/disk/src/merge/mergedblobsfromremotes.rs b/crates/disk/src/merge/mergedblobsfromremotes.rs
index 3dbb7c8..57d3495 100644
--- a/crates/disk/src/merge/mergedblobsfromremotes.rs
+++ b/crates/disk/src/merge/mergedblobsfromremotes.rs
@@ -7,6 +7,7 @@ use items_2::eventfull::EventFull;
 use items_2::merger::Merger;
 use netpod::log::*;
 use netpod::Cluster;
+use netpod::ReqCtx;
 use query::api4::events::EventsSubQuery;
 use std::future::Future;
 use std::pin::Pin;
@@ -26,11 +27,11 @@ pub struct MergedBlobsFromRemotes {
 }
 
 impl MergedBlobsFromRemotes {
-    pub fn new(subq: EventsSubQuery, cluster: Cluster) -> Self {
+    pub fn new(subq: EventsSubQuery, ctx: &ReqCtx, cluster: Cluster) -> Self {
         debug!("MergedBlobsFromRemotes::new  subq {:?}", subq);
         let mut tcp_establish_futs = Vec::new();
         for node in &cluster.nodes {
-            let f = x_processed_event_blobs_stream_from_node(subq.clone(), node.clone());
+            let f = x_processed_event_blobs_stream_from_node(subq.clone(), node.clone(), ctx.clone());
             let f: T002<EventFull> = Box::pin(f);
             tcp_establish_futs.push(f);
         }
diff --git a/crates/httpclient/src/httpclient.rs b/crates/httpclient/src/httpclient.rs
index 2fa13cc..1eb8791 100644
--- a/crates/httpclient/src/httpclient.rs
+++ b/crates/httpclient/src/httpclient.rs
@@ -17,13 +17,14 @@ use http_body_util::combinators::BoxBody;
 use http_body_util::BodyExt;
 use hyper::body::Body;
 use hyper::body::Incoming;
-use hyper::client::conn::http2::SendRequest;
+use hyper::client::conn::http1::SendRequest;
 use hyper::Method;
 use netpod::log::*;
 use netpod::AppendToUrl;
 use netpod::ChannelConfigQuery;
 use netpod::ChannelConfigResponse;
 use netpod::NodeConfigCached;
+use netpod::ReqCtx;
 use netpod::APP_JSON;
 use serde::Serialize;
 use std::fmt;
@@ -232,12 +233,13 @@ pub struct HttpResponse {
     pub body: Bytes,
 }
 
-pub async fn http_get(url: Url, accept: &str) -> Result<HttpResponse, Error> {
+pub async fn http_get(url: Url, accept: &str, ctx: &ReqCtx) -> Result<HttpResponse, Error> {
     let req = Request::builder()
         .method(http::Method::GET)
         .uri(url.to_string())
         .header(header::HOST, url.host_str().ok_or_else(|| Error::BadUrl)?)
         .header(header::ACCEPT, accept)
+        .header("daqbuf-reqid", ctx.reqid())
         .body(body_empty())?;
     let mut send_req = connect_client(req.uri()).await?;
     let res = send_req.send_request(req).await?;
@@ -261,13 +263,14 @@ pub async fn http_get(url: Url, accept: &str) -> Result<HttpResponse, Error> {
     Ok(ret)
 }
 
-pub async fn http_post(url: Url, accept: &str, body: String) -> Result<Bytes, Error> {
+pub async fn http_post(url: Url, accept: &str, body: String, ctx: &ReqCtx) -> Result<Bytes, Error> {
     let req = Request::builder()
         .method(http::Method::POST)
         .uri(url.to_string())
         .header(header::HOST, url.host_str().ok_or_else(|| Error::BadUrl)?)
         .header(header::CONTENT_TYPE, APP_JSON)
         .header(header::ACCEPT, accept)
+        .header("daqbuf-reqid", ctx.reqid())
         .body(body_string(body))?;
     let mut send_req = connect_client(req.uri()).await?;
     let res = send_req.send_request(req).await?;
@@ -301,8 +304,12 @@ pub async fn connect_client(uri: &http::Uri) -> Result<SendRequest<StreamBody>,
     let host = uri.host().ok_or_else(|| Error::BadUrl)?;
     let port = uri.port_u16().ok_or_else(|| Error::BadUrl)?;
     let stream = TcpStream::connect(format!("{host}:{port}")).await?;
-    let executor = hyper_util::rt::TokioExecutor::new();
-    let (send_req, conn) = hyper::client::conn::http2::Builder::new(executor)
+    #[cfg(DISABLED)]
+    {
+        let executor = hyper_util::rt::TokioExecutor::new();
+        hyper::client::conn::http2::Builder::new(executor);
+    }
+    let (send_req, conn) = hyper::client::conn::http1::Builder::new()
         .handshake(hyper_util::rt::TokioIo::new(stream))
         .await?;
     // TODO would need to take greater care of this task to catch connection-level errors.
diff --git a/crates/httpret/Cargo.toml b/crates/httpret/Cargo.toml
index 60f8f6f..bf664a7 100644
--- a/crates/httpret/Cargo.toml
+++ b/crates/httpret/Cargo.toml
@@ -24,6 +24,7 @@ itertools = "0.11.0"
 chrono = "0.4.23"
 md-5 = "0.10.6"
 regex = "1.10.2"
+rand = "0.8.5"
 err = { path = "../err" }
 netpod = { path = "../netpod" }
 query = { path = "../query" }
diff --git a/crates/httpret/src/api1.rs b/crates/httpret/src/api1.rs
index 8a968f1..52d4bcc 100644
--- a/crates/httpret/src/api1.rs
+++ b/crates/httpret/src/api1.rs
@@ -62,6 +62,7 @@ use std::any;
 use std::collections::VecDeque;
 use std::future::Future;
 use std::pin::Pin;
+use std::sync::Arc;
 use std::task::Context;
 use std::task::Poll;
 use std::time::Duration;
@@ -527,7 +528,7 @@ pub struct DataApiPython3DataStream {
     event_count: usize,
     events_max: u64,
     header_out: bool,
-    reqctx: ReqCtxArc,
+    ctx: ReqCtxArc,
     ping_last: Instant,
     data_done: bool,
     completed: bool,
@@ -561,7 +562,7 @@ impl DataApiPython3DataStream {
             event_count: 0,
             events_max,
             header_out: false,
-            reqctx,
+            ctx: reqctx,
             ping_last: Instant::now(),
             data_done: false,
             completed: false,
@@ -737,7 +738,7 @@ impl DataApiPython3DataStream {
         if tsnow.duration_since(self.ping_last) >= Duration::from_millis(500) {
             self.ping_last = tsnow;
             let mut sb = crate::status_board().unwrap();
-            sb.mark_alive(self.reqctx.reqid());
+            sb.mark_alive(self.ctx.reqid());
         }
         ret
     }
@@ -749,7 +750,7 @@ impl DataApiPython3DataStream {
             self.range.clone().into(),
             TransformQuery::for_event_blobs(),
         );
-        let subq = EventsSubQuery::from_parts(select, self.settings.clone(), self.reqctx.reqid().into());
+        let subq = EventsSubQuery::from_parts(select, self.settings.clone(), self.ctx.reqid().into());
         debug!("query for event blobs retrieval  subq {subq:?}");
         // TODO  important TODO
         debug!("TODO fix magic inmem_bufcap");
@@ -757,10 +758,10 @@ impl DataApiPython3DataStream {
         // TODO is this a good to place decide this?
         let stream = if self.node_config.node_config.cluster.is_central_storage {
             debug!("set up central storage stream");
-            disk::raw::conn::make_event_blobs_pipe(&subq, &fetch_info, self.reqctx.clone(), &self.node_config)?
+            disk::raw::conn::make_event_blobs_pipe(&subq, &fetch_info, self.ctx.clone(), &self.node_config)?
         } else {
             debug!("set up merged remote stream  {}", fetch_info.name());
-            let s = MergedBlobsFromRemotes::new(subq, self.node_config.node_config.cluster.clone());
+            let s = MergedBlobsFromRemotes::new(subq, &self.ctx, self.node_config.node_config.cluster.clone());
             Box::pin(s) as Pin<Box<dyn Stream<Item = Sitemty<EventFull>> + Send>>
         };
         self.chan_stream = Some(Box::pin(stream));
@@ -779,7 +780,7 @@ impl Stream for DataApiPython3DataStream {
                 panic!("poll on completed")
             } else if self.data_done {
                 self.completed = true;
-                let reqid = self.reqctx.reqid();
+                let reqid = self.ctx.reqid();
                 info!(
                     "{}  response body sent  {} bytes  ({})",
                     reqid, self.count_bytes, self.count_emits
@@ -801,7 +802,7 @@ impl Stream for DataApiPython3DataStream {
                                 self.current_fetch_info = None;
                                 self.data_done = true;
                                 let mut sb = crate::status_board().unwrap();
-                                sb.add_error(self.reqctx.reqid(), e.0.clone());
+                                sb.add_error(self.ctx.reqid(), e.0.clone());
                                 Ready(Some(Err(e)))
                             }
                         },
@@ -836,8 +837,8 @@ impl Stream for DataApiPython3DataStream {
                             let n = Instant::now();
                             self.ping_last = n;
                             let mut sb = crate::status_board().unwrap();
-                            sb.mark_alive(self.reqctx.reqid());
-                            sb.mark_done(self.reqctx.reqid());
+                            sb.mark_alive(self.ctx.reqid());
+                            sb.mark_done(self.ctx.reqid());
                         }
                         continue;
                     }
@@ -877,7 +878,7 @@ impl Api1EventsBinaryHandler {
     pub async fn handle(
         &self,
         req: Requ,
-        _ctx: &ReqCtx,
+        ctx: &ReqCtx,
         node_config: &NodeConfigCached,
     ) -> Result<StreamResponse, Error> {
         if req.method() != Method::POST {
@@ -902,8 +903,6 @@ impl Api1EventsBinaryHandler {
                 return Err(Error::with_msg_no_trace("can not parse query"));
             }
         };
-        let reqid = super::status_board()?.new_status_id();
-        let reqctx = netpod::ReqCtx::new(reqid);
         let span = if qu.log_level() == "trace" {
             debug!("enable trace for handler");
             tracing::span!(tracing::Level::TRACE, "log_span_trace")
@@ -920,7 +919,9 @@ impl Api1EventsBinaryHandler {
                 .map_err(|e| e.add_public_msg(format!("Can not parse query url")))?
         };
         let disk_tune = DiskIoTune::from_url(&url)?;
-        let reqidspan = tracing::info_span!("api1query", reqid = reqctx.reqid());
+        let reqidspan = tracing::info_span!("api1query", reqid = ctx.reqid());
+        // TODO do not clone here
+        let reqctx = Arc::new(ctx.clone());
         self.handle_for_query(
             qu,
             accept,
@@ -928,6 +929,7 @@ impl Api1EventsBinaryHandler {
             &reqctx,
             span.clone(),
             reqidspan.clone(),
+            ctx,
             node_config,
         )
         .instrument(span)
@@ -943,6 +945,7 @@ impl Api1EventsBinaryHandler {
         reqctx: &ReqCtxArc,
         span: tracing::Span,
         reqidspan: tracing::Span,
+        ctx: &ReqCtx,
         ncc: &NodeConfigCached,
     ) -> Result<StreamResponse, Error> {
         let self_name = any::type_name::<Self>();
@@ -973,7 +976,8 @@ impl Api1EventsBinaryHandler {
                 debug!("try to find config quorum for {ch:?}");
                 let ch = SfDbChannel::from_name(backend, ch.name());
                 let ch_conf =
-                    nodenet::configquorum::find_config_basics_quorum(ch.clone(), range.clone().into(), ncc).await?;
+                    nodenet::configquorum::find_config_basics_quorum(ch.clone(), range.clone().into(), ctx, ncc)
+                        .await?;
                 match ch_conf {
                     Some(x) => {
                         debug!("found quorum {ch:?} {x:?}");
diff --git a/crates/httpret/src/api4/binned.rs b/crates/httpret/src/api4/binned.rs
index b37845d..d4fbc3f 100644
--- a/crates/httpret/src/api4/binned.rs
+++ b/crates/httpret/src/api4/binned.rs
@@ -14,11 +14,17 @@ use netpod::log::*;
 use netpod::timeunits::SEC;
 use netpod::FromUrl;
 use netpod::NodeConfigCached;
+use netpod::ReqCtx;
 use query::api4::binned::BinnedQuery;
 use tracing::Instrument;
 use url::Url;
 
-async fn binned_json(url: Url, req: Requ, node_config: &NodeConfigCached) -> Result<StreamResponse, Error> {
+async fn binned_json(
+    url: Url,
+    req: Requ,
+    ctx: &ReqCtx,
+    node_config: &NodeConfigCached,
+) -> Result<StreamResponse, Error> {
     debug!("{:?}", req);
     let reqid = crate::status_board()
         .map_err(|e| Error::with_msg_no_trace(e.to_string()))?
@@ -30,7 +36,7 @@ async fn binned_json(url: Url, req: Requ, node_config: &NodeConfigCached) -> Res
         e.add_public_msg(msg)
     })?;
     // TODO handle None case better and return 404
-    let ch_conf = ch_conf_from_binned(&query, node_config)
+    let ch_conf = ch_conf_from_binned(&query, ctx, node_config)
         .await?
         .ok_or_else(|| Error::with_msg_no_trace("channel not found"))?;
     let span1 = span!(
@@ -44,14 +50,14 @@ async fn binned_json(url: Url, req: Requ, node_config: &NodeConfigCached) -> Res
     span1.in_scope(|| {
         debug!("begin");
     });
-    let item = streams::timebinnedjson::timebinned_json(query, ch_conf, reqid, node_config.node_config.cluster.clone())
+    let item = streams::timebinnedjson::timebinned_json(query, ch_conf, ctx, node_config.node_config.cluster.clone())
         .instrument(span1)
         .await?;
     let ret = response(StatusCode::OK).body(ToJsonBody::from(&item).into_body())?;
     Ok(ret)
 }
 
-async fn binned(req: Requ, node_config: &NodeConfigCached) -> Result<StreamResponse, Error> {
+async fn binned(req: Requ, ctx: &ReqCtx, node_config: &NodeConfigCached) -> Result<StreamResponse, Error> {
     let url = {
         let s1 = format!("dummy:{}", req.uri());
         Url::parse(&s1)
@@ -66,7 +72,7 @@ async fn binned(req: Requ, node_config: &NodeConfigCached) -> Result<StreamRespo
         Err(Error::with_msg_no_trace("hidden message").add_public_msg("PublicMessage"))?;
     }
     if crate::accepts_json(&req.headers()) {
-        Ok(binned_json(url, req, node_config).await?)
+        Ok(binned_json(url, req, ctx, node_config).await?)
     } else if crate::accepts_octets(&req.headers()) {
         Ok(response_err(
             StatusCode::NOT_ACCEPTABLE,
@@ -92,11 +98,16 @@ impl BinnedHandler {
         }
     }
 
-    pub async fn handle(&self, req: Requ, node_config: &NodeConfigCached) -> Result<StreamResponse, Error> {
+    pub async fn handle(
+        &self,
+        req: Requ,
+        ctx: &ReqCtx,
+        node_config: &NodeConfigCached,
+    ) -> Result<StreamResponse, Error> {
         if req.method() != Method::GET {
             return Ok(response(StatusCode::NOT_ACCEPTABLE).body(body_empty())?);
         }
-        match binned(req, node_config).await {
+        match binned(req, ctx, node_config).await {
             Ok(ret) => Ok(ret),
             Err(e) => {
                 warn!("BinnedHandler handle sees: {e}");
diff --git a/crates/httpret/src/api4/events.rs b/crates/httpret/src/api4/events.rs
index a7d180d..14aba3b 100644
--- a/crates/httpret/src/api4/events.rs
+++ b/crates/httpret/src/api4/events.rs
@@ -16,6 +16,7 @@ use httpclient::ToJsonBody;
 use netpod::log::*;
 use netpod::FromUrl;
 use netpod::NodeConfigCached;
+use netpod::ReqCtx;
 use netpod::ACCEPT_ALL;
 use netpod::APP_JSON;
 use netpod::APP_OCTET;
@@ -33,11 +34,16 @@ impl EventsHandler {
         }
     }
 
-    pub async fn handle(&self, req: Requ, node_config: &NodeConfigCached) -> Result<StreamResponse, Error> {
+    pub async fn handle(
+        &self,
+        req: Requ,
+        ctx: &ReqCtx,
+        node_config: &NodeConfigCached,
+    ) -> Result<StreamResponse, Error> {
         if req.method() != Method::GET {
             return Ok(response(StatusCode::NOT_ACCEPTABLE).body(body_empty())?);
         }
-        match plain_events(req, node_config).await {
+        match plain_events(req, ctx, node_config).await {
             Ok(ret) => Ok(ret),
             Err(e) => {
                 error!("EventsHandler sees: {e}");
@@ -47,7 +53,7 @@ impl EventsHandler {
     }
 }
 
-async fn plain_events(req: Requ, node_config: &NodeConfigCached) -> Result<StreamResponse, Error> {
+async fn plain_events(req: Requ, ctx: &ReqCtx, node_config: &NodeConfigCached) -> Result<StreamResponse, Error> {
     let accept_def = APP_JSON;
     let accept = req
         .headers()
@@ -60,19 +66,24 @@ async fn plain_events(req: Requ, node_config: &NodeConfigCached) -> Result<Strea
             .map_err(|e| e.add_public_msg(format!("Can not parse query url")))?
     };
     if accept.contains(APP_JSON) || accept.contains(ACCEPT_ALL) {
-        Ok(plain_events_json(url, req, node_config).await?)
+        Ok(plain_events_json(url, req, ctx, node_config).await?)
     } else if accept == APP_OCTET {
-        Ok(plain_events_binary(url, req, node_config).await?)
+        Ok(plain_events_binary(url, req, ctx, node_config).await?)
     } else {
         let ret = response_err(StatusCode::NOT_ACCEPTABLE, format!("Unsupported Accept: {:?}", accept))?;
         Ok(ret)
     }
 }
 
-async fn plain_events_binary(url: Url, req: Requ, node_config: &NodeConfigCached) -> Result<StreamResponse, Error> {
+async fn plain_events_binary(
+    url: Url,
+    req: Requ,
+    ctx: &ReqCtx,
+    node_config: &NodeConfigCached,
+) -> Result<StreamResponse, Error> {
     debug!("{:?}", req);
     let query = PlainEventsQuery::from_url(&url).map_err(|e| e.add_public_msg(format!("Can not understand query")))?;
-    let ch_conf = chconf_from_events_quorum(&query, node_config).await?;
+    let ch_conf = chconf_from_events_quorum(&query, ctx, node_config).await?;
     info!("plain_events_binary  chconf_from_events_quorum: {ch_conf:?}");
     let s = stream::iter([Ok::<_, Error>(String::from("TODO_PREBINNED_BINARY_STREAM"))]);
     let s = s.map_err(Error::from);
@@ -80,20 +91,24 @@ async fn plain_events_binary(url: Url, req: Requ, node_config: &NodeConfigCached
     Ok(ret)
 }
 
-async fn plain_events_json(url: Url, req: Requ, node_config: &NodeConfigCached) -> Result<StreamResponse, Error> {
-    let reqid = crate::status_board()?.new_status_id();
+async fn plain_events_json(
+    url: Url,
+    req: Requ,
+    ctx: &ReqCtx,
+    node_config: &NodeConfigCached,
+) -> Result<StreamResponse, Error> {
     info!("plain_events_json  req: {:?}", req);
     let (_head, _body) = req.into_parts();
     let query = PlainEventsQuery::from_url(&url)?;
     info!("plain_events_json  query {query:?}");
     // TODO handle None case better and return 404
-    let ch_conf = chconf_from_events_quorum(&query, node_config)
+    let ch_conf = chconf_from_events_quorum(&query, ctx, node_config)
         .await
         .map_err(Error::from)?
         .ok_or_else(|| Error::with_msg_no_trace("channel not found"))?;
     info!("plain_events_json  chconf_from_events_quorum: {ch_conf:?}");
     let item =
-        streams::plaineventsjson::plain_events_json(&query, ch_conf, reqid, &node_config.node_config.cluster).await;
+        streams::plaineventsjson::plain_events_json(&query, ch_conf, ctx, &node_config.node_config.cluster).await;
     let item = match item {
         Ok(item) => item,
         Err(e) => {
diff --git a/crates/httpret/src/channelconfig.rs b/crates/httpret/src/channelconfig.rs
index dec04ea..41848ef 100644
--- a/crates/httpret/src/channelconfig.rs
+++ b/crates/httpret/src/channelconfig.rs
@@ -20,6 +20,7 @@ use netpod::ChannelConfigResponse;
 use netpod::ChannelTypeConfigGen;
 use netpod::FromUrl;
 use netpod::NodeConfigCached;
+use netpod::ReqCtx;
 use netpod::ScalarType;
 use netpod::SfDbChannel;
 use netpod::Shape;
@@ -36,25 +37,28 @@ use url::Url;
 
 pub async fn chconf_from_events_quorum(
     q: &PlainEventsQuery,
+    ctx: &ReqCtx,
     ncc: &NodeConfigCached,
 ) -> Result<Option<ChannelTypeConfigGen>, Error> {
-    let ret = find_config_basics_quorum(q.channel().clone(), q.range().clone(), ncc).await?;
+    let ret = find_config_basics_quorum(q.channel().clone(), q.range().clone(), ctx, ncc).await?;
     Ok(ret)
 }
 
 pub async fn chconf_from_prebinned(
     q: &PreBinnedQuery,
+    ctx: &ReqCtx,
     ncc: &NodeConfigCached,
 ) -> Result<Option<ChannelTypeConfigGen>, Error> {
-    let ret = find_config_basics_quorum(q.channel().clone(), q.patch().patch_range(), ncc).await?;
+    let ret = find_config_basics_quorum(q.channel().clone(), q.patch().patch_range(), ctx, ncc).await?;
     Ok(ret)
 }
 
 pub async fn ch_conf_from_binned(
     q: &BinnedQuery,
+    ctx: &ReqCtx,
     ncc: &NodeConfigCached,
 ) -> Result<Option<ChannelTypeConfigGen>, Error> {
-    let ret = find_config_basics_quorum(q.channel().clone(), q.range().clone(), ncc).await?;
+    let ret = find_config_basics_quorum(q.channel().clone(), q.range().clone(), ctx, ncc).await?;
     Ok(ret)
 }
 
@@ -172,7 +176,12 @@ impl ChannelConfigQuorumHandler {
         }
     }
 
-    pub async fn handle(&self, req: Requ, node_config: &NodeConfigCached) -> Result<StreamResponse, Error> {
+    pub async fn handle(
+        &self,
+        req: Requ,
+        ctx: &ReqCtx,
+        node_config: &NodeConfigCached,
+    ) -> Result<StreamResponse, Error> {
         if req.method() == Method::GET {
             let accept_def = APP_JSON;
             let accept = req
@@ -180,7 +189,7 @@ impl ChannelConfigQuorumHandler {
                 .get(http::header::ACCEPT)
                 .map_or(accept_def, |k| k.to_str().unwrap_or(accept_def));
             if accept.contains(APP_JSON) || accept.contains(ACCEPT_ALL) {
-                match self.channel_config_quorum(req, &node_config).await {
+                match self.channel_config_quorum(req, ctx, &node_config).await {
                     Ok(k) => Ok(k),
                     Err(e) => {
                         warn!("from channel_config_quorum: {e}");
@@ -195,12 +204,17 @@ impl ChannelConfigQuorumHandler {
         }
     }
 
-    async fn channel_config_quorum(&self, req: Requ, ncc: &NodeConfigCached) -> Result<StreamResponse, Error> {
+    async fn channel_config_quorum(
+        &self,
+        req: Requ,
+        ctx: &ReqCtx,
+        ncc: &NodeConfigCached,
+    ) -> Result<StreamResponse, Error> {
         info!("channel_config_quorum");
         let url = Url::parse(&format!("dummy:{}", req.uri()))?;
         let q = ChannelConfigQuery::from_url(&url)?;
         info!("channel_config_quorum  for q {q:?}");
-        let ch_confs = nodenet::configquorum::find_config_basics_quorum(q.channel, q.range.into(), ncc).await?;
+        let ch_confs = nodenet::configquorum::find_config_basics_quorum(q.channel, q.range.into(), ctx, ncc).await?;
         let ret = response(StatusCode::OK)
             .header(http::header::CONTENT_TYPE, APP_JSON)
             .body(ToJsonBody::from(&ch_confs).into_body())?;
diff --git a/crates/httpret/src/gather.rs b/crates/httpret/src/gather.rs
index 4deac8d..d2aeb64 100644
--- a/crates/httpret/src/gather.rs
+++ b/crates/httpret/src/gather.rs
@@ -5,8 +5,10 @@ use crate::response;
 use crate::Requ;
 use futures_util::select;
 use futures_util::FutureExt;
+use http::header;
 use http::Method;
 use http::StatusCode;
+use http::Uri;
 use httpclient::connect_client;
 use httpclient::read_body_bytes;
 use httpclient::IntoBody;
@@ -22,6 +24,7 @@ use netpod::APP_JSON;
 use serde::Deserialize;
 use serde::Serialize;
 use serde_json::Value as JsonValue;
+use std::fmt;
 use std::future::Future;
 use std::pin::Pin;
 use std::time::Duration;
@@ -69,9 +72,11 @@ pub async fn gather_get_json(req: Requ, node_config: &NodeConfigCached) -> Resul
         .iter()
         .filter_map(|node| {
             let uri = format!("http://{}:{}/api/4/{}", node.host, node.port, pathsuf);
-            let req = Request::builder().method(Method::GET).uri(uri);
-            let req = req.header(http::header::HOST, &node.host);
-            let req = req.header(http::header::ACCEPT, APP_JSON);
+            let req = Request::builder()
+                .method(Method::GET)
+                .header(http::header::HOST, &node.host)
+                .header(http::header::ACCEPT, APP_JSON)
+                .uri(uri);
             match req.body(body_empty()) {
                 Ok(req) => {
                     let task = tokio::spawn(async move {
@@ -133,6 +138,7 @@ pub async fn gather_get_json(req: Requ, node_config: &NodeConfigCached) -> Resul
 #[derive(Debug, Clone, PartialEq, PartialOrd, Eq, Ord, Serialize, Deserialize)]
 pub struct Tag(pub String);
 
+#[derive(Debug)]
 pub struct SubRes<T> {
     pub tag: String,
     pub status: StatusCode,
@@ -158,6 +164,7 @@ where
         + Copy
         + 'static,
     FT: Fn(Vec<(Tag, Result<SubRes<SM>, Error>)>) -> Result<OUT, Error>,
+    SubRes<SM>: fmt::Debug,
 {
     // TODO remove magic constant
     let extra_timeout = Duration::from_millis(3000);
@@ -173,17 +180,26 @@ where
         .zip(tags.into_iter())
         .filter_map(move |((url, body), tag)| {
             info!("Try gather from {}", url);
-            let url_str = url.as_str();
-            let req = if body.is_some() {
-                Request::builder().method(Method::POST).uri(url_str)
+            let uri: Uri = if let Ok(x) = url.as_str().parse() {
+                x
             } else {
-                Request::builder().method(Method::GET).uri(url_str)
+                warn!("can not parse {url}");
+                return None;
             };
-            let req = req.header(http::header::ACCEPT, APP_JSON);
             let req = if body.is_some() {
-                req.header(http::header::CONTENT_TYPE, APP_JSON)
+                Request::builder()
+                    .method(Method::POST)
+                    .header(header::HOST, uri.host().unwrap())
+                    .header(http::header::CONTENT_TYPE, APP_JSON)
+                    .header(http::header::ACCEPT, APP_JSON)
+                    .uri(uri)
             } else {
-                req
+                Request::builder()
+                    .method(Method::GET)
+                    .header(header::HOST, uri.host().unwrap())
+                    .header(http::header::CONTENT_TYPE, APP_JSON)
+                    .header(http::header::ACCEPT, APP_JSON)
+                    .uri(uri)
             };
             let body = match body {
                 None => body_empty(),
@@ -209,9 +225,9 @@ where
                                 };
                                 Ok(res)
                             }.fuse() => {
-                                info!("received result in time");
+                                debug!("received result in time  {res:?}");
                                 let ret = nt(tag2, res?).await?;
-                                info!("transformed result in time");
+                                debug!("transformed result in time  {ret:?}");
                                 Ok(ret)
                             }
                         }
diff --git a/crates/httpret/src/httpret.rs b/crates/httpret/src/httpret.rs
index 5dfdd69..d6e9047 100644
--- a/crates/httpret/src/httpret.rs
+++ b/crates/httpret/src/httpret.rs
@@ -34,13 +34,12 @@ use httpclient::Requ;
 use httpclient::StreamResponse;
 use httpclient::ToJsonBody;
 use hyper::service::service_fn;
-use hyper::Request;
 use hyper_util::rt::TokioIo;
 use net::SocketAddr;
 use netpod::log::*;
 use netpod::query::prebinned::PreBinnedQuery;
 use netpod::NodeConfigCached;
-use netpod::ProxyConfig;
+use netpod::ReqCtx;
 use netpod::ServiceVersion;
 use netpod::APP_JSON;
 use netpod::APP_JSON_LINES;
@@ -64,9 +63,7 @@ use task::Context;
 use task::Poll;
 use taskrun::tokio;
 use taskrun::tokio::net::TcpListener;
-
-pub const PSI_DAQBUFFER_SERVICE_MARK: &'static str = "PSI-Daqbuffer-Service-Mark";
-pub const PSI_DAQBUFFER_SEEN_URL: &'static str = "PSI-Daqbuffer-Seen-Url";
+use tracing::Instrument;
 
 #[derive(Debug, ThisError, Serialize, Deserialize)]
 pub enum RetrievalError {
@@ -128,13 +125,7 @@ pub fn accepts_octets(hm: &http::HeaderMap) -> bool {
 }
 
 pub async fn host(node_config: NodeConfigCached, service_version: ServiceVersion) -> Result<(), RetrievalError> {
-    static STATUS_BOARD_INIT: Once = Once::new();
-    STATUS_BOARD_INIT.call_once(|| {
-        let b = StatusBoard::new();
-        let a = RwLock::new(b);
-        let x = Box::new(a);
-        STATUS_BOARD.store(Box::into_raw(x), Ordering::SeqCst);
-    });
+    status_board_init();
     #[cfg(DISABLED)]
     if let Some(bind) = node_config.node.prometheus_api_bind {
         tokio::spawn(prometheus::host(bind));
@@ -179,6 +170,20 @@ async fn the_service_fn(
     addr: SocketAddr,
     node_config: NodeConfigCached,
     service_version: ServiceVersion,
+) -> Result<StreamResponse, Error> {
+    let ctx = ReqCtx::new(status_board()?.new_status_id()).with_node(&req, &node_config);
+    let reqid_span = span!(Level::INFO, "req", reqid = ctx.reqid());
+    let f = http_service(req, addr, ctx, node_config, service_version);
+    let f = Cont { f: Box::pin(f) };
+    f.instrument(reqid_span).await
+}
+
+async fn http_service(
+    req: Requ,
+    addr: SocketAddr,
+    ctx: ReqCtx,
+    node_config: NodeConfigCached,
+    service_version: ServiceVersion,
 ) -> Result<StreamResponse, Error> {
     info!(
         "http-request  {:?} - {:?} - {:?} - {:?}",
@@ -187,17 +192,7 @@ async fn the_service_fn(
         req.uri(),
         req.headers()
     );
-    let f = http_service(req, node_config, service_version).await;
-    // Cont { f: Box::pin(f) }
-    f
-}
-
-async fn http_service(
-    req: Requ,
-    node_config: NodeConfigCached,
-    service_version: ServiceVersion,
-) -> Result<StreamResponse, Error> {
-    match http_service_try(req, &node_config, &service_version).await {
+    match http_service_try(req, ctx, &node_config, &service_version).await {
         Ok(k) => Ok(k),
         Err(e) => {
             error!("daqbuffer node http_service sees error: {}", e);
@@ -237,41 +232,6 @@ where
 
 impl<F> UnwindSafe for Cont<F> {}
 
-pub struct ReqCtx {
-    pub marks: Vec<String>,
-    pub mark: String,
-}
-
-impl ReqCtx {
-    fn with_node<T>(req: &Request<T>, nc: &NodeConfigCached) -> Self {
-        let mut marks = Vec::new();
-        for (n, v) in req.headers().iter() {
-            if n == PSI_DAQBUFFER_SERVICE_MARK {
-                marks.push(String::from_utf8_lossy(v.as_bytes()).to_string());
-            }
-        }
-        Self {
-            marks,
-            mark: format!("{}:{}", nc.node_config.name, nc.node.port),
-        }
-    }
-}
-
-impl ReqCtx {
-    fn with_proxy<T>(req: &Request<T>, proxy: &ProxyConfig) -> Self {
-        let mut marks = Vec::new();
-        for (n, v) in req.headers().iter() {
-            if n == PSI_DAQBUFFER_SERVICE_MARK {
-                marks.push(String::from_utf8_lossy(v.as_bytes()).to_string());
-            }
-        }
-        Self {
-            marks,
-            mark: format!("{}:{}", proxy.name, proxy.port),
-        }
-    }
-}
-
 // TODO remove because I want error bodies to be json.
 pub fn response_err<T>(status: StatusCode, msg: T) -> Result<StreamResponse, RetrievalError>
 where
@@ -334,6 +294,7 @@ macro_rules! static_http_api1 {
 
 async fn http_service_try(
     req: Requ,
+    ctx: ReqCtx,
     node_config: &NodeConfigCached,
     service_version: &ServiceVersion,
 ) -> Result<StreamResponse, Error> {
@@ -341,23 +302,22 @@ async fn http_service_try(
     let mut urlmarks = Vec::new();
     urlmarks.push(format!("{}:{}", req.method(), req.uri()));
     for (k, v) in req.headers() {
-        if k == PSI_DAQBUFFER_SEEN_URL {
+        if k == netpod::PSI_DAQBUFFER_SEEN_URL {
             let s = String::from_utf8_lossy(v.as_bytes());
             urlmarks.push(s.into());
         }
     }
-    let ctx = ReqCtx::with_node(&req, &node_config);
     let mut res = http_service_inner(req, &ctx, node_config, service_version).await?;
     let hm = res.headers_mut();
     hm.append("Access-Control-Allow-Origin", "*".parse().unwrap());
     hm.append("Access-Control-Allow-Headers", "*".parse().unwrap());
-    for m in &ctx.marks {
-        hm.append(PSI_DAQBUFFER_SERVICE_MARK, m.parse().unwrap());
+    for m in ctx.marks() {
+        hm.append(netpod::PSI_DAQBUFFER_SERVICE_MARK, m.parse().unwrap());
     }
-    hm.append(PSI_DAQBUFFER_SERVICE_MARK, ctx.mark.parse().unwrap());
+    hm.append(netpod::PSI_DAQBUFFER_SERVICE_MARK, ctx.mark().parse().unwrap());
     for s in urlmarks {
         let v = HeaderValue::from_str(&s).unwrap_or_else(|_| HeaderValue::from_static("invalid"));
-        hm.append(PSI_DAQBUFFER_SEEN_URL, v);
+        hm.append(netpod::PSI_DAQBUFFER_SEEN_URL, v);
     }
     Ok(res)
 }
@@ -427,9 +387,9 @@ async fn http_service_inner(
     } else if let Some(h) = api4::search::ChannelSearchHandler::handler(&req) {
         Ok(h.handle(req, &node_config).await?)
     } else if let Some(h) = api4::binned::BinnedHandler::handler(&req) {
-        Ok(h.handle(req, &node_config).await?)
+        Ok(h.handle(req, ctx, &node_config).await?)
     } else if let Some(h) = channelconfig::ChannelConfigQuorumHandler::handler(&req) {
-        Ok(h.handle(req, &node_config).await?)
+        Ok(h.handle(req, ctx, &node_config).await?)
     } else if let Some(h) = channelconfig::ChannelConfigsHandler::handler(&req) {
         Ok(h.handle(req, &node_config).await?)
     } else if let Some(h) = channelconfig::ChannelConfigHandler::handler(&req) {
@@ -445,7 +405,7 @@ async fn http_service_inner(
     } else if let Some(h) = channelconfig::AmbigiousChannelNames::handler(&req) {
         Ok(h.handle(req, &node_config).await?)
     } else if let Some(h) = api4::events::EventsHandler::handler(&req) {
-        Ok(h.handle(req, &node_config).await?)
+        Ok(h.handle(req, ctx, &node_config).await?)
     } else if let Some(h) = channel_status::ConnectionStatusEvents::handler(&req) {
         Ok(h.handle(req, ctx, &node_config).await?)
     } else if let Some(h) = channel_status::ChannelStatusEventsHandler::handler(&req) {
@@ -845,20 +805,14 @@ impl StatusBoard {
     }
 
     pub fn new_status_id(&mut self) -> String {
-        use std::fs::File;
-        use std::io::Read;
-        self.clean();
-        let mut f = File::open("/dev/urandom").unwrap();
-        let mut buf = [0; 4];
-        f.read_exact(&mut buf).unwrap();
-        let n = u32::from_le_bytes(buf);
+        self.clean_if_needed();
+        let n: u32 = rand::random();
         let s = format!("{:08x}", n);
-        debug!("new_status_id {s}");
         self.entries.insert(s.clone(), StatusBoardEntry::new());
         s
     }
 
-    pub fn clean(&mut self) {
+    pub fn clean_if_needed(&mut self) {
         if self.entries.len() > 15000 {
             let mut tss: Vec<_> = self.entries.values().map(|e| e.ts_updated).collect();
             tss.sort_unstable();
@@ -916,7 +870,7 @@ impl StatusBoard {
             Some(e) => e.into(),
             None => {
                 error!("can not find status id {}", status_id);
-                let _e = ::err::Error::with_public_msg_no_trace(format!("Request status ID unknown {status_id}"));
+                let _e = ::err::Error::with_public_msg_no_trace(format!("request-id unknown {status_id}"));
                 StatusBoardEntryUser {
                     error_count: 1,
                     warn_count: 0,
@@ -937,3 +891,13 @@ pub fn status_board() -> Result<RwLockWriteGuard<'static, StatusBoard>, Retrieva
         Err(e) => Err(RetrievalError::TextError(format!("{e}"))),
     }
 }
+
+pub fn status_board_init() {
+    static STATUS_BOARD_INIT: Once = Once::new();
+    STATUS_BOARD_INIT.call_once(|| {
+        let b = StatusBoard::new();
+        let a = RwLock::new(b);
+        let x = Box::new(a);
+        STATUS_BOARD.store(Box::into_raw(x), Ordering::SeqCst);
+    });
+}
diff --git a/crates/httpret/src/proxy.rs b/crates/httpret/src/proxy.rs
index 0446e24..20537fe 100644
--- a/crates/httpret/src/proxy.rs
+++ b/crates/httpret/src/proxy.rs
@@ -12,9 +12,9 @@ use crate::gather::SubRes;
 use crate::pulsemap::MapPulseQuery;
 use crate::response;
 use crate::response_err;
+use crate::status_board;
+use crate::status_board_init;
 use crate::Cont;
-use crate::ReqCtx;
-use crate::PSI_DAQBUFFER_SERVICE_MARK;
 use futures_util::pin_mut;
 use futures_util::Stream;
 use http::Method;
@@ -42,9 +42,11 @@ use netpod::FromUrl;
 use netpod::HasBackend;
 use netpod::HasTimeout;
 use netpod::ProxyConfig;
+use netpod::ReqCtx;
 use netpod::ServiceVersion;
 use netpod::ACCEPT_ALL;
 use netpod::APP_JSON;
+use netpod::PSI_DAQBUFFER_SERVICE_MARK;
 use query::api4::binned::BinnedQuery;
 use query::api4::events::PlainEventsQuery;
 use serde::Deserialize;
@@ -61,19 +63,23 @@ use tokio::fs::File;
 use tokio::io::AsyncRead;
 use tokio::io::ReadBuf;
 use tokio::net::TcpListener;
+use tracing::Instrument;
 use url::Url;
 
 const DISTRI_PRE: &str = "/distri/";
 
 pub async fn proxy(proxy_config: ProxyConfig, service_version: ServiceVersion) -> Result<(), Error> {
+    status_board_init();
     use std::str::FromStr;
     let bind_addr = SocketAddr::from_str(&format!("{}:{}", proxy_config.listen, proxy_config.port))?;
     let listener = TcpListener::bind(bind_addr).await?;
     loop {
-        let (stream, addr) = if let Ok(x) = listener.accept().await {
-            x
-        } else {
-            break;
+        let (stream, addr) = match listener.accept().await {
+            Ok(x) => x,
+            Err(e) => {
+                error!("{e}");
+                break;
+            }
         };
         debug!("new connection from {addr}");
         let proxy_config = proxy_config.clone();
@@ -83,19 +89,7 @@ pub async fn proxy(proxy_config: ProxyConfig, service_version: ServiceVersion) -
             let res = hyper::server::conn::http1::Builder::new()
                 .serve_connection(
                     io,
-                    service_fn({
-                        move |req| {
-                            info!(
-                                "http-request  {:?} - {:?} - {:?} - {:?}",
-                                bind_addr,
-                                req.method(),
-                                req.uri(),
-                                req.headers()
-                            );
-                            let f = proxy_http_service(req, proxy_config.clone(), service_version.clone());
-                            Cont { f: Box::pin(f) }
-                        }
-                    }),
+                    service_fn(move |req| the_service_fn(req, addr, proxy_config.clone(), service_version.clone())),
                 )
                 .await;
             match res {
@@ -106,15 +100,38 @@ pub async fn proxy(proxy_config: ProxyConfig, service_version: ServiceVersion) -
             }
         });
     }
+    info!("proxy done");
     Ok(())
 }
 
+async fn the_service_fn(
+    req: Requ,
+    addr: SocketAddr,
+    proxy_config: ProxyConfig,
+    service_version: ServiceVersion,
+) -> Result<StreamResponse, Error> {
+    let ctx = ReqCtx::new(status_board().unwrap().new_status_id()).with_proxy(&req, &proxy_config);
+    let reqid_span = span!(Level::INFO, "req", reqid = ctx.reqid());
+    let f = proxy_http_service(req, addr, ctx, proxy_config.clone(), service_version.clone());
+    let f = Cont { f: Box::pin(f) };
+    f.instrument(reqid_span).await
+}
+
 async fn proxy_http_service(
     req: Requ,
+    addr: SocketAddr,
+    ctx: ReqCtx,
     proxy_config: ProxyConfig,
     service_version: ServiceVersion,
 ) -> Result<StreamResponse, Error> {
-    match proxy_http_service_try(req, &proxy_config, &service_version).await {
+    info!(
+        "http-request  {:?} - {:?} - {:?} - {:?}",
+        addr,
+        req.method(),
+        req.uri(),
+        req.headers()
+    );
+    match proxy_http_service_try(req, ctx, &proxy_config, &service_version).await {
         Ok(k) => Ok(k),
         Err(e) => {
             error!("data_api_proxy sees error: {:?}", e);
@@ -125,18 +142,18 @@ async fn proxy_http_service(
 
 async fn proxy_http_service_try(
     req: Requ,
+    ctx: ReqCtx,
     proxy_config: &ProxyConfig,
     service_version: &ServiceVersion,
 ) -> Result<StreamResponse, Error> {
-    let ctx = ReqCtx::with_proxy(&req, proxy_config);
     let mut res = proxy_http_service_inner(req, &ctx, proxy_config, &service_version).await?;
     let hm = res.headers_mut();
     hm.insert("Access-Control-Allow-Origin", "*".parse().unwrap());
     hm.insert("Access-Control-Allow-Headers", "*".parse().unwrap());
-    for m in &ctx.marks {
+    for m in ctx.marks() {
         hm.append(PSI_DAQBUFFER_SERVICE_MARK, m.parse().unwrap());
     }
-    hm.append(PSI_DAQBUFFER_SERVICE_MARK, ctx.mark.parse().unwrap());
+    hm.append(PSI_DAQBUFFER_SERVICE_MARK, ctx.mark().parse().unwrap());
     Ok(res)
 }
 
diff --git a/crates/httpret/src/proxy/api1.rs b/crates/httpret/src/proxy/api1.rs
index 73c9bdd..8cee64e 100644
--- a/crates/httpret/src/proxy/api1.rs
+++ b/crates/httpret/src/proxy/api1.rs
@@ -38,7 +38,7 @@ impl PythonDataApi1Query {
         }
     }
 
-    pub async fn handle(&self, req: Requ, _ctx: &ReqCtx, proxy_config: &ProxyConfig) -> Result<StreamResponse, Error> {
+    pub async fn handle(&self, req: Requ, ctx: &ReqCtx, proxy_config: &ProxyConfig) -> Result<StreamResponse, Error> {
         if req.method() != Method::POST {
             return Ok(response(StatusCode::METHOD_NOT_ALLOWED).body(body_empty())?);
         }
@@ -50,18 +50,16 @@ impl PythonDataApi1Query {
             .map_err(|e| Error::with_msg_no_trace(format!("{e:?}")))?
             .to_owned();
         let body_data = read_body_bytes(body).await?;
-        if body_data.len() < 512 && body_data.first() == Some(&"{".as_bytes()[0]) {
-            info!("request body_data string: {}", String::from_utf8_lossy(&body_data));
-        }
         let qu = match serde_json::from_slice::<Api1Query>(&body_data) {
             Ok(qu) => qu,
             Err(e) => {
-                error!("got body_data: {:?}", String::from_utf8_lossy(&body_data[..]));
+                let buf = &body_data[..body_data.len().min(200)];
+                error!("got body_data: {:?}", String::from_utf8_lossy(buf));
                 error!("can not parse: {e}");
                 return Err(Error::with_msg_no_trace("can not parse query"));
             }
         };
-        info!("Proxy sees request: {qu:?}");
+        info!("{qu:?}");
         let back = {
             let mut ret = None;
             for b in &proxy_config.backends {
@@ -73,12 +71,24 @@ impl PythonDataApi1Query {
             ret
         };
         if let Some(back) = back {
+            // TODO remove special code, make it part of configuration
+            let back = if back.url.contains("sf-daqbuf-23.psi.ch") {
+                let id = 21 + rand::random::<u32>() % 13;
+                let url = back.url.replace("-23.", &format!("-{id}."));
+                netpod::ProxyBackend {
+                    name: back.name.clone(),
+                    url,
+                }
+            } else {
+                back.clone()
+            };
             let url_str = format!("{}/api/1/query", back.url);
             info!("try to ask {url_str}");
             let uri: Uri = url_str.parse()?;
             let req = Request::builder()
                 .method(Method::POST)
                 .header(header::HOST, uri.host().unwrap())
+                .header(ctx.header_name(), ctx.header_value())
                 .uri(&uri)
                 .body(body_bytes(body_data))?;
             let mut client = connect_client(&uri).await?;
diff --git a/crates/httpret/src/pulsemap.rs b/crates/httpret/src/pulsemap.rs
index 3223d98..a11a211 100644
--- a/crates/httpret/src/pulsemap.rs
+++ b/crates/httpret/src/pulsemap.rs
@@ -835,11 +835,11 @@ impl FromUrl for MapPulseQuery {
     fn from_url(url: &url::Url) -> Result<Self, err::Error> {
         let mut pit = url
             .path_segments()
-            .ok_or_else(|| Error::with_msg_no_trace("no path in url"))?
+            .ok_or_else(|| Error::with_msg_no_trace(format!("no path in url  {url}")))?
             .rev();
         let pulsestr = pit
             .next()
-            .ok_or_else(|| Error::with_msg_no_trace("no pulse in url path"))?;
+            .ok_or_else(|| Error::with_msg_no_trace(format!("no pulse in url path  {pit:?}")))?;
         let backend = pit.next().unwrap_or("sf-databuffer").into();
         // TODO legacy: use a default backend if not specified.
         let backend = if backend == "pulse" {
diff --git a/crates/netpod/Cargo.toml b/crates/netpod/Cargo.toml
index b2afb5d..939b009 100644
--- a/crates/netpod/Cargo.toml
+++ b/crates/netpod/Cargo.toml
@@ -10,6 +10,7 @@ path = "src/netpod.rs"
 [dependencies]
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
+http = "1.0.0"
 humantime-serde = "1.1.1"
 async-channel = "1.8.0"
 bytes = "1.4.0"
diff --git a/crates/netpod/src/netpod.rs b/crates/netpod/src/netpod.rs
index 43b5c98..813e704 100644
--- a/crates/netpod/src/netpod.rs
+++ b/crates/netpod/src/netpod.rs
@@ -17,6 +17,7 @@ use chrono::Utc;
 use err::Error;
 use futures_util::Stream;
 use futures_util::StreamExt;
+use http::Request;
 use range::evrange::NanoRange;
 use range::evrange::PulseRange;
 use range::evrange::SeriesRange;
@@ -2528,7 +2529,7 @@ mod test {
     }
 }
 
-#[derive(Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize)]
 pub struct ChannelSearchSingleResult {
     pub backend: String,
     pub name: String,
@@ -2544,7 +2545,7 @@ pub struct ChannelSearchSingleResult {
     pub is_api_0: Option<bool>,
 }
 
-#[derive(Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize)]
 pub struct ChannelSearchResult {
     pub channels: Vec<ChannelSearchSingleResult>,
 }
@@ -3108,22 +3109,82 @@ mod test_parse {
     }
 }
 
+pub const PSI_DAQBUFFER_SERVICE_MARK: &'static str = "PSI-Daqbuffer-Service-Mark";
+pub const PSI_DAQBUFFER_SEEN_URL: &'static str = "PSI-Daqbuffer-Seen-Url";
+
+#[derive(Debug, Clone)]
 pub struct ReqCtx {
     reqid: String,
+    marks: Vec<String>,
+    mark: String,
 }
 
 impl ReqCtx {
-    pub fn new<S>(reqid: S) -> std::sync::Arc<Self>
+    pub fn new<S>(reqid: S) -> Self
     where
         S: Into<String>,
     {
-        let ret = Self { reqid: reqid.into() };
-        std::sync::Arc::new(ret)
+        let ret = Self {
+            reqid: reqid.into(),
+            marks: Vec::new(),
+            mark: String::new(),
+        };
+        ret
+    }
+
+    pub fn for_test() -> Self {
+        Self {
+            reqid: "TESTID".into(),
+            marks: Vec::new(),
+            mark: String::new(),
+        }
+    }
+
+    pub fn with_node<T>(mut self, req: &Request<T>, nc: &NodeConfigCached) -> Self {
+        if let Some(reqid) = req.headers().get("daqbuf-reqid") {
+            self.reqid = format!("{}-{}", reqid.to_str().unwrap_or("BADID"), self.reqid());
+        }
+        self.mark = format!("{}:{}", nc.node_config.name, nc.node.port);
+        for (n, v) in req.headers().iter() {
+            if n == PSI_DAQBUFFER_SERVICE_MARK {
+                self.marks.push(String::from_utf8_lossy(v.as_bytes()).to_string());
+            }
+        }
+        self
+    }
+
+    pub fn with_proxy<T>(mut self, req: &Request<T>, proxy: &ProxyConfig) -> Self {
+        if let Some(reqid) = req.headers().get("daqbuf-reqid") {
+            self.reqid = format!("{}-{}", reqid.to_str().unwrap_or("BADID"), self.reqid());
+        }
+        self.mark = format!("{}:{}", proxy.name, proxy.port);
+        for (n, v) in req.headers().iter() {
+            if n == PSI_DAQBUFFER_SERVICE_MARK {
+                self.marks.push(String::from_utf8_lossy(v.as_bytes()).to_string());
+            }
+        }
+        self
     }
 
     pub fn reqid(&self) -> &str {
         &self.reqid
     }
+
+    pub fn mark(&self) -> &str {
+        &self.mark
+    }
+
+    pub fn marks(&self) -> &[String] {
+        &self.marks
+    }
+
+    pub fn header_name(&self) -> &'static str {
+        "daqbuf-reqid"
+    }
+
+    pub fn header_value(&self) -> &str {
+        &self.reqid
+    }
 }
 
 pub type ReqCtxArc = std::sync::Arc<ReqCtx>;
diff --git a/crates/nodenet/src/channelconfig.rs b/crates/nodenet/src/channelconfig.rs
index eafbbb9..cfd3feb 100644
--- a/crates/nodenet/src/channelconfig.rs
+++ b/crates/nodenet/src/channelconfig.rs
@@ -11,6 +11,7 @@ use netpod::ChannelConfigResponse;
 use netpod::ChannelTypeConfigGen;
 use netpod::DtNano;
 use netpod::NodeConfigCached;
+use netpod::ReqCtx;
 use netpod::ScalarType;
 use netpod::SfChFetchInfo;
 use netpod::SfDbChannel;
@@ -175,11 +176,12 @@ pub async fn channel_configs(channel: SfDbChannel, ncc: &NodeConfigCached) -> Re
 pub async fn http_get_channel_config(
     qu: ChannelConfigQuery,
     baseurl: Url,
+    ctx: &ReqCtx,
 ) -> Result<Option<ChannelConfigResponse>, Error> {
     let url = baseurl;
     let mut url = url.join("/api/4/channel/config").unwrap();
     qu.append_to_url(&mut url);
-    let res = httpclient::http_get(url, APP_JSON).await?;
+    let res = httpclient::http_get(url, APP_JSON, ctx).await?;
     use httpclient::http::StatusCode;
     if res.head.status == StatusCode::NOT_FOUND {
         Ok(None)
diff --git a/crates/nodenet/src/configquorum.rs b/crates/nodenet/src/configquorum.rs
index 0c84660..6613a5b 100644
--- a/crates/nodenet/src/configquorum.rs
+++ b/crates/nodenet/src/configquorum.rs
@@ -8,6 +8,7 @@ use netpod::ChannelConfigResponse;
 use netpod::ChannelTypeConfigGen;
 use netpod::DtNano;
 use netpod::NodeConfigCached;
+use netpod::ReqCtx;
 use netpod::SfChFetchInfo;
 use netpod::SfDbChannel;
 use std::collections::BTreeMap;
@@ -48,6 +49,7 @@ fn decide_sf_ch_config_quorum(inp: Vec<ChannelConfigResponse>) -> Result<Option<
 async fn find_sf_ch_config_quorum(
     channel: SfDbChannel,
     range: SeriesRange,
+    ctx: &ReqCtx,
     ncc: &NodeConfigCached,
 ) -> Result<Option<SfChFetchInfo>, Error> {
     let range = match range {
@@ -63,9 +65,12 @@ async fn find_sf_ch_config_quorum(
             // TODO
             expand: false,
         };
-        let res = tokio::time::timeout(Duration::from_millis(4000), http_get_channel_config(qu, node.baseurl()))
-            .await
-            .map_err(|_| Error::with_msg_no_trace("timeout"))??;
+        let res = tokio::time::timeout(
+            Duration::from_millis(4000),
+            http_get_channel_config(qu, node.baseurl(), ctx),
+        )
+        .await
+        .map_err(|_| Error::with_msg_no_trace("timeout"))??;
         all.push(res);
     }
     let all: Vec<_> = all.into_iter().filter_map(|x| x).collect();
@@ -84,6 +89,7 @@ async fn find_sf_ch_config_quorum(
 pub async fn find_config_basics_quorum(
     channel: SfDbChannel,
     range: SeriesRange,
+    ctx: &ReqCtx,
     ncc: &NodeConfigCached,
 ) -> Result<Option<ChannelTypeConfigGen>, Error> {
     if let Some(_cfg) = &ncc.node.sf_databuffer {
@@ -100,7 +106,7 @@ pub async fn find_config_basics_quorum(
         } else {
             channel
         };
-        match find_sf_ch_config_quorum(channel, range, ncc).await? {
+        match find_sf_ch_config_quorum(channel, range, ctx, ncc).await? {
             Some(x) => Ok(Some(ChannelTypeConfigGen::SfDatabuffer(x))),
             None => Ok(None),
         }
diff --git a/crates/nodenet/src/conn.rs b/crates/nodenet/src/conn.rs
index 1bd46ea..e5ce42a 100644
--- a/crates/nodenet/src/conn.rs
+++ b/crates/nodenet/src/conn.rs
@@ -166,7 +166,7 @@ pub async fn create_response_bytes_stream(
         evq.ch_conf().shape(),
     );
     debug!("wasm1 {:?}", evq.wasm1());
-    let reqctx = netpod::ReqCtx::new(evq.reqid());
+    let reqctx = netpod::ReqCtx::new(evq.reqid()).into();
     if evq.create_errors_contains("nodenet_parse_query") {
         let e = Error::with_msg_no_trace("produced error on request nodenet_parse_query");
         return Err(e);
diff --git a/crates/streams/src/plaineventsjson.rs b/crates/streams/src/plaineventsjson.rs
index ab84fb6..44fdc3e 100644
--- a/crates/streams/src/plaineventsjson.rs
+++ b/crates/streams/src/plaineventsjson.rs
@@ -14,6 +14,7 @@ use items_2::streams::PlainEventStream;
 use netpod::log::*;
 use netpod::ChannelTypeConfigGen;
 use netpod::Cluster;
+use netpod::ReqCtx;
 use query::api4::events::EventsSubQuery;
 use query::api4::events::EventsSubQuerySelect;
 use query::api4::events::EventsSubQuerySettings;
@@ -24,7 +25,7 @@ use std::time::Instant;
 pub async fn plain_events_json(
     evq: &PlainEventsQuery,
     ch_conf: ChannelTypeConfigGen,
-    reqid: String,
+    ctx: &ReqCtx,
     cluster: &Cluster,
 ) -> Result<JsonValue, Error> {
     info!("plain_events_json  evquery {:?}", evq);
@@ -33,12 +34,12 @@ pub async fn plain_events_json(
         select.set_wasm1(x.into());
     }
     let settings = EventsSubQuerySettings::from(evq);
-    let subq = EventsSubQuery::from_parts(select, settings, reqid);
+    let subq = EventsSubQuery::from_parts(select, settings, ctx.reqid().into());
     // TODO remove magic constant
     let deadline = Instant::now() + evq.timeout();
     let mut tr = build_merged_event_transform(evq.transform())?;
     // TODO make sure the empty container arrives over the network.
-    let inps = open_event_data_streams::<ChannelEvents>(subq, cluster).await?;
+    let inps = open_event_data_streams::<ChannelEvents>(subq, ctx, cluster).await?;
     // TODO propagate also the max-buf-len for the first stage event reader.
     // TODO use a mixture of count and byte-size as threshold.
     let stream = Merger::new(inps, evq.merger_out_len_max());
@@ -72,6 +73,7 @@ pub async fn plain_events_json(
         let t = httpclient::http_get(
             Url::parse(&format!("http://data-api.psi.ch/distri/{}", wasmname)).unwrap(),
             "*/*",
+            ctx,
         )
         .await
         .unwrap();
diff --git a/crates/streams/src/tcprawclient.rs b/crates/streams/src/tcprawclient.rs
index 9aa48ac..d7012b7 100644
--- a/crates/streams/src/tcprawclient.rs
+++ b/crates/streams/src/tcprawclient.rs
@@ -21,6 +21,7 @@ use items_2::frame::make_term_frame;
 use netpod::log::*;
 use netpod::Cluster;
 use netpod::Node;
+use netpod::ReqCtx;
 use netpod::APP_OCTET;
 use query::api4::events::EventsSubQuery;
 use query::api4::events::Frame1Parts;
@@ -61,6 +62,7 @@ pub async fn x_processed_event_blobs_stream_from_node_tcp(
 pub async fn x_processed_event_blobs_stream_from_node_http(
     subq: EventsSubQuery,
     node: Node,
+    ctx: &ReqCtx,
 ) -> Result<Pin<Box<dyn Stream<Item = Sitemty<EventFull>> + Send>>, Error> {
     use http::header;
     use http::Method;
@@ -80,6 +82,7 @@ pub async fn x_processed_event_blobs_stream_from_node_http(
         .uri(&uri)
         .header(header::HOST, uri.host().unwrap())
         .header(header::ACCEPT, APP_OCTET)
+        .header(ctx.header_name(), ctx.header_value())
         .body(body_bytes(buf))
         .map_err(|e| Error::with_msg_no_trace(e.to_string()))?;
     let mut client = httpclient::connect_client(req.uri()).await?;
@@ -115,9 +118,10 @@ pub async fn x_processed_event_blobs_stream_from_node_http(
 pub async fn x_processed_event_blobs_stream_from_node(
     subq: EventsSubQuery,
     node: Node,
+    ctx: ReqCtx,
 ) -> Result<Pin<Box<dyn Stream<Item = Sitemty<EventFull>> + Send>>, Error> {
     if true {
-        x_processed_event_blobs_stream_from_node_http(subq, node).await
+        x_processed_event_blobs_stream_from_node_http(subq, node, &ctx).await
     } else {
         x_processed_event_blobs_stream_from_node_tcp(subq, node).await
     }
@@ -154,7 +158,11 @@ where
     Ok(streams)
 }
 
-async fn open_event_data_streams_http<T>(subq: EventsSubQuery, cluster: &Cluster) -> Result<Vec<BoxedStream<T>>, Error>
+async fn open_event_data_streams_http<T>(
+    subq: EventsSubQuery,
+    ctx: &ReqCtx,
+    cluster: &Cluster,
+) -> Result<Vec<BoxedStream<T>>, Error>
 where
     // TODO group bounds in new trait
     T: FrameTypeInnerStatic + DeserializeOwned + Send + Unpin + fmt::Debug + 'static,
@@ -178,6 +186,7 @@ where
             .uri(&uri)
             .header(header::HOST, uri.host().unwrap())
             .header(header::ACCEPT, APP_OCTET)
+            .header(ctx.header_name(), ctx.header_value())
             .body(body_bytes(buf))
             .map_err(|e| Error::with_msg_no_trace(e.to_string()))?;
         let mut client = httpclient::connect_client(req.uri()).await?;
@@ -210,13 +219,17 @@ where
     Ok(streams)
 }
 
-pub async fn open_event_data_streams<T>(subq: EventsSubQuery, cluster: &Cluster) -> Result<Vec<BoxedStream<T>>, Error>
+pub async fn open_event_data_streams<T>(
+    subq: EventsSubQuery,
+    ctx: &ReqCtx,
+    cluster: &Cluster,
+) -> Result<Vec<BoxedStream<T>>, Error>
 where
     // TODO group bounds in new trait
     T: FrameTypeInnerStatic + DeserializeOwned + Send + Unpin + fmt::Debug + 'static,
 {
     if true {
-        open_event_data_streams_http(subq, cluster).await
+        open_event_data_streams_http(subq, ctx, cluster).await
     } else {
         open_event_data_streams_tcp(subq, cluster).await
     }
diff --git a/crates/streams/src/timebinnedjson.rs b/crates/streams/src/timebinnedjson.rs
index b715bda..43a6837 100644
--- a/crates/streams/src/timebinnedjson.rs
+++ b/crates/streams/src/timebinnedjson.rs
@@ -23,6 +23,7 @@ use netpod::range::evrange::NanoRange;
 use netpod::BinnedRangeEnum;
 use netpod::ChannelTypeConfigGen;
 use netpod::Cluster;
+use netpod::ReqCtx;
 use query::api4::binned::BinnedQuery;
 use query::api4::events::EventsSubQuery;
 use query::api4::events::EventsSubQuerySelect;
@@ -41,7 +42,7 @@ async fn timebinnable_stream(
     range: NanoRange,
     one_before_range: bool,
     ch_conf: ChannelTypeConfigGen,
-    reqid: String,
+    ctx: &ReqCtx,
     cluster: Cluster,
 ) -> Result<TimeBinnableStreamBox, Error> {
     let mut select = EventsSubQuerySelect::new(ch_conf, range.clone().into(), query.transform().clone());
@@ -49,9 +50,9 @@ async fn timebinnable_stream(
         select.set_wasm1(wasm1.into());
     }
     let settings = EventsSubQuerySettings::from(&query);
-    let subq = EventsSubQuery::from_parts(select.clone(), settings, reqid);
+    let subq = EventsSubQuery::from_parts(select.clone(), settings, ctx.reqid().into());
     let mut tr = build_merged_event_transform(subq.transform())?;
-    let inps = open_event_data_streams::<ChannelEvents>(subq, &cluster).await?;
+    let inps = open_event_data_streams::<ChannelEvents>(subq, ctx, &cluster).await?;
     // TODO propagate also the max-buf-len for the first stage event reader.
     // TODO use a mixture of count and byte-size as threshold.
     let stream = Merger::new(inps, query.merger_out_len_max());
@@ -75,6 +76,7 @@ async fn timebinnable_stream(
         let t = httpclient::http_get(
             Url::parse(&format!("http://data-api.psi.ch/distri/{}", wasmname)).unwrap(),
             "*/*",
+            ctx,
         )
         .await
         .unwrap();
@@ -209,7 +211,7 @@ async fn timebinned_stream(
     query: BinnedQuery,
     binned_range: BinnedRangeEnum,
     ch_conf: ChannelTypeConfigGen,
-    reqid: String,
+    ctx: &ReqCtx,
     cluster: Cluster,
 ) -> Result<Pin<Box<dyn Stream<Item = Sitemty<Box<dyn TimeBinned>>> + Send>>, Error> {
     let range = binned_range.binned_range_time().to_nano_range();
@@ -217,7 +219,7 @@ async fn timebinned_stream(
     let do_time_weight = true;
     let one_before_range = true;
 
-    let stream = timebinnable_stream(query.clone(), range, one_before_range, ch_conf, reqid, cluster).await?;
+    let stream = timebinnable_stream(query.clone(), range, one_before_range, ch_conf, ctx, cluster).await?;
     let stream: Pin<Box<dyn TimeBinnableStreamTrait>> = stream.0;
     let stream = Box::pin(stream);
     // TODO rename TimeBinnedStream to make it more clear that it is the component which initiates the time binning.
@@ -243,13 +245,13 @@ fn timebinned_to_collectable(
 pub async fn timebinned_json(
     query: BinnedQuery,
     ch_conf: ChannelTypeConfigGen,
-    reqid: String,
+    ctx: &ReqCtx,
     cluster: Cluster,
 ) -> Result<JsonValue, Error> {
     let deadline = Instant::now().checked_add(query.timeout_value()).unwrap();
     let binned_range = BinnedRangeEnum::covering_range(query.range().clone(), query.bin_count())?;
     let collect_max = 10000;
-    let stream = timebinned_stream(query.clone(), binned_range.clone(), ch_conf, reqid, cluster).await?;
+    let stream = timebinned_stream(query.clone(), binned_range.clone(), ch_conf, ctx, cluster).await?;
     let stream = timebinned_to_collectable(stream);
     let collected = Collect::new(stream, deadline, collect_max, None, Some(binned_range));
     let collected: BoxFuture<_> = Box::pin(collected);
diff --git a/crates/taskrun/src/formatter.rs b/crates/taskrun/src/formatter.rs
index 1e4c797..ae69c29 100644
--- a/crates/taskrun/src/formatter.rs
+++ b/crates/taskrun/src/formatter.rs
@@ -61,11 +61,12 @@ where
         match current_thread.name() {
             Some(name) => {
                 let n = name.len();
-                let max = 14;
+                let max = 32;
                 if n > max {
-                    writer.write_str(&name[0..2])?;
+                    let pre = 3;
+                    writer.write_str(&name[0..3])?;
                     writer.write_char('.')?;
-                    writer.write_str(&name[name.len() + 3 - max..])?;
+                    writer.write_str(&name[name.len() + 1 + pre - max..])?;
                 } else {
                     writer.write_str(name)?;
                 }