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document PSON investigation

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buchel_k
2024-07-09 11:15:21 +02:00
parent 37145ad6ae
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admin-guide/puppet/client.md
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@@ -14,3 +14,19 @@ curl \
"https://puppet01.psi.ch:8140/puppet/v3/node/$FQDN?environment=prod&configured_en" \
| jq .
```
## PSON
Sometimes the puppet agent emits:
```
Info: Unable to serialize catalog to json, retrying with pson. PSON is deprecated and will be removed in a future release
```
These should be fixed in the puppet code as with Puppet 8 this will fail hard.
To figure out what part of the catalog is concerned, look at `/opt/puppetlabs/puppet/cache/client_data/catalog/$(hostname --fqdn).json`.
Then search for `\u` which starts a binary (non-utf8) character in PSON in a way that is still valid JSON.
Please improve the Puppet code wherever such non-utf8 strings are used. Be aware that not only resources, but also arguments to profiles, classes, etc. end up in the catalog.