Colvin Cowie created SOLR-17099:
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Summary: Unsolicited snitch tag warnings from AttributeFetcherImpl
Key: SOLR-17099
URL: https://issues.apache.org/jira/browse/SOLR-17099
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: 9.4, 9.3
Reporter: Colvin Cowie
I first spotted this in 9.3, I've not gone back to check earlier versions,
though it is likely to affect them too. When configuring replica placement
rules on a standard out of the box deployment and creating a collection, error
messages are logged like this:
{{{{2023-09-27 08:45:58.188 ERROR (OverseerThreadFactory-19-thread-5) []
o.a.s.c.p.i.AttributeFetcherImpl Received unsolicited snitch tag heapUsage from
node NodeImpl(localhost:8983_solr)
2023-09-27 08:45:58.188 ERROR (OverseerThreadFactory-19-thread-5) []
o.a.s.c.p.i.AttributeFetcherImpl Received unsolicited snitch tag sysLoadAvg
from node NodeImpl(localhost:8983_solr)
2023-09-27 08:45:58.188 ERROR (OverseerThreadFactory-19-thread-5) []
o.a.s.c.p.i.AttributeFetcherImpl Received unsolicited snitch tag freedisk from
node NodeImpl(localhost:8983_solr)
2023-09-27 08:45:58.188 ERROR (OverseerThreadFactory-19-thread-5) []
o.a.s.c.p.i.AttributeFetcherImpl Received unsolicited snitch tag totaldisk from
node NodeImpl(localhost:8983_solr)}}}}
That error comes from here:
[https://github.com/apache/lucene-solr/commit/c7d234cafd37d824ff6642b449d3cb333d1e4a9a#r129141901]
[~ilan] said "I suspect it was introduced with SOLR-15019
([commit|https://github.com/apache/lucene-solr/blob/2695624a9f2d11a63f3640dd7f3bb30c2e6f938e/solr/core/src/java/org/apache/solr/cluster/placement/impl/AttributeFetcherImpl.java#L69])
when requested tags were prefixed with sysprop. but returned tags apparently
not."
The error is fairly benign, it just pollutes the logs and makes it look like
something is wrong but everything else functions correctly (if you aren't
trying to configure rules based on those four metrics at least).
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