diff --git a/daqingest/src/opts.rs b/daqingest/src/opts.rs
index 6dedaa4..0d87679 100644
--- a/daqingest/src/opts.rs
+++ b/daqingest/src/opts.rs
@@ -171,6 +171,7 @@ pub struct FindOlder {
 
 #[derive(Debug, clap::Parser)]
 pub struct Ca {
+    #[arg(long)]
     pub broadcast: Option<String>,
     #[command(subcommand)]
     pub subcmds: CaSubcmds,
diff --git a/daqingest/src/tools/catools.rs b/daqingest/src/tools/catools.rs
index 136ef2b..47f43f5 100644
--- a/daqingest/src/tools/catools.rs
+++ b/daqingest/src/tools/catools.rs
@@ -11,16 +11,21 @@ use std::time::Duration;
 pub enum Error {}
 
 pub async fn find(cmd: CaFind, broadcast: String) -> Result<(), Error> {
+    eprintln!("{:?}", broadcast);
     let brd = broadcast.split(",");
+    let tgts = brd
+        .inspect(|x| eprintln!("try to parse: [{:?}]", x))
+        .map(|x| x.parse().unwrap())
+        .collect();
+    eprintln!("{:?}", tgts);
     let (channels_input_tx, channels_input_rx) = async_channel::bounded(10);
-    let tgts = brd.map(|x| x.parse().unwrap()).collect();
     let blacklist = Vec::new();
     let batch_run_max = Duration::from_millis(1200);
     let in_flight_max = 1;
     let batch_size = 1;
     let stats = Arc::new(IocFinderStats::new());
     channels_input_tx.send(cmd.channel).await.unwrap();
-    let mut stream = netfetch::ca::findioc::FindIocStream::new(
+    let stream = netfetch::ca::findioc::FindIocStream::new(
         channels_input_rx,
         tgts,
         blacklist,
@@ -29,6 +34,8 @@ pub async fn find(cmd: CaFind, broadcast: String) -> Result<(), Error> {
         batch_size,
         stats,
     );
+    let deadline = taskrun::tokio::time::sleep(Duration::from_millis(2000));
+    let mut stream = Box::pin(stream.take_until(deadline));
     while let Some(e) = stream.next().await {
         eprintln!("{e:?}");
     }
diff --git a/netfetch/Cargo.toml b/netfetch/Cargo.toml
index 1c99afe..4f0b0be 100644
--- a/netfetch/Cargo.toml
+++ b/netfetch/Cargo.toml
@@ -37,6 +37,7 @@ dashmap = "6.0.1"
 hashbrown = "0.15.2"
 smallvec = "1.13.2"
 thiserror = "=0.0.1"
+autoerr = "0.0.3"
 log = { path = "../log" }
 series = { path = "../../daqbuf-series", package = "daqbuf-series" }
 serieswriter = { path = "../serieswriter" }
diff --git a/netfetch/src/ca/finder.rs b/netfetch/src/ca/finder.rs
index 4be133d..bfa20fe 100644
--- a/netfetch/src/ca/finder.rs
+++ b/netfetch/src/ca/finder.rs
@@ -27,14 +27,15 @@ macro_rules! debug_batch { ($($arg:tt)*) => ( if false { debug!($($arg)*); } ) }
 
 macro_rules! trace_batch { ($($arg:tt)*) => ( if false { trace!($($arg)*); } ) }
 
-#[derive(Debug, thiserror::Error)]
-#[cstm(name = "Finder")]
-pub enum Error {
-    Join(#[from] tokio::task::JoinError),
-    DbPg(#[from] dbpg::err::Error),
-    Postgres(#[from] dbpg::postgres::Error),
-    IocSearch(#[from] crate::ca::search::Error),
-}
+autoerr::create_error_v1!(
+    name(Error, "Finder"),
+    enum variants {
+        Join(#[from] tokio::task::JoinError),
+        DbPg(#[from] dbpg::err::Error),
+        Postgres(#[from] dbpg::postgres::Error),
+        IocSearch(#[from] crate::ca::search::Error),
+    },
+);
 
 fn transform_pgres(rows: Vec<PgRow>) -> VecDeque<FindIocRes> {
     let mut ret = VecDeque::new();
@@ -147,7 +148,7 @@ async fn finder_worker_single(
     let sql = concat!(
         "with q1 as (select * from unnest($2::text[]) as unn (ch))",
         " select distinct on (tt.facility, tt.channel) tt.channel, tt.addr",
-        " from ioc_by_channel_log tt join q1 on tt.channel = q1.ch and tt.facility = $1 and tt.addr is not null",
+        " from ioc_by_channel_log tt join q1 on tt.channel = q1.ch and tt.facility = $1 and tt.archived = 0 and tt.addr is not null",
         " order by tt.facility, tt.channel, tsmod desc",
     );
     let qu_select_multi = pg.prepare(sql).await?;
@@ -155,6 +156,9 @@ async fn finder_worker_single(
     loop {
         match inp.recv().await {
             Ok(batch) => {
+                if batch.iter().filter(|x| crate::dbg_chn(x.name())).next().is_some() {
+                    info!("SEARCHING FOR DBG");
+                };
                 stats.dbsearcher_batch_recv().inc();
                 stats.dbsearcher_item_recv().add(batch.len() as _);
                 let ts1 = Instant::now();
@@ -203,6 +207,11 @@ async fn finder_worker_single(
                         for e in &items {
                             trace!("found in database: {e:?}");
                         }
+                        for e in items.iter() {
+                            if crate::dbg_chn(&e.channel) {
+                                info!("FOUND {e:?}");
+                            }
+                        }
                         let items_len = items.len();
                         if items_len != nbatch {
                             stats.dbsearcher_select_error_len_mismatch().inc();
diff --git a/netfetch/src/ca/findioc.rs b/netfetch/src/ca/findioc.rs
index 3bd017a..ffdcd5a 100644
--- a/netfetch/src/ca/findioc.rs
+++ b/netfetch/src/ca/findioc.rs
@@ -25,21 +25,22 @@ use std::time::Instant;
 use taskrun::tokio;
 use tokio::io::unix::AsyncFd;
 
-#[derive(Debug, thiserror::Error)]
-#[cstm(name = "FindIoc")]
-pub enum Error {
-    SocketCreate,
-    SocketConvertTokio,
-    BroadcastEnable,
-    NonblockEnable,
-    SocketBind,
-    SendFailure,
-    ReadFailure,
-    ReadEmpty,
-    Proto(#[from] proto::Error),
-    Slidebuf(#[from] slidebuf::Error),
-    IO(#[from] std::io::Error),
-}
+autoerr::create_error_v1!(
+    name(Error, "FindIoc"),
+    enum variants {
+        SocketCreate,
+        SocketConvertTokio,
+        BroadcastEnable,
+        NonblockEnable,
+        SocketBind,
+        SendFailure,
+        ReadFailure,
+        ReadEmpty,
+        Proto(#[from] proto::Error),
+        Slidebuf(#[from] slidebuf::Error),
+        IO(#[from] std::io::Error),
+    },
+);
 
 struct SockBox(c_int);
 
diff --git a/netfetch/src/ca/statemap.rs b/netfetch/src/ca/statemap.rs
index 651b11a..87b24a2 100644
--- a/netfetch/src/ca/statemap.rs
+++ b/netfetch/src/ca/statemap.rs
@@ -108,8 +108,8 @@ pub struct MaybeWrongAddressState {
 
 impl MaybeWrongAddressState {
     pub fn new(since: SystemTime, backoff_cnt: u32) -> Self {
-        let f = 1. + 10. * (backoff_cnt as f32 / 4.).tanh();
-        let dtms = 4e3_f32 * f;
+        let f = 2. + 60. * (backoff_cnt as f32 / 5.).tanh();
+        let dtms = 1e-3 * f;
         Self {
             since,
             backoff_dt: Duration::from_millis(dtms as u64),
diff --git a/netfetch/src/lib.rs b/netfetch/src/lib.rs
index 2edae26..b06007e 100644
--- a/netfetch/src/lib.rs
+++ b/netfetch/src/lib.rs
@@ -21,3 +21,8 @@ pub fn log_test() {
     debug!("log-test");
     trace!("log-test");
 }
+
+pub fn dbg_chn(chn: &str) -> bool {
+    let chns = ["SINEG01:QE-B1-OP"];
+    chns.contains(&chn)
+}