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https://issues.apache.org/jira/browse/SOLR-16982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18012270#comment-18012270
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Russell Black edited comment on SOLR-16982 at 8/6/25 3:12 AM:
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This ticket makes circuit breakers useless for me (and probably others). For a
sharded system, the searches are performed by the internal requests to the
individual shards, which places additional load on them, even if their CPU is
pegged and would otherwise break the circuit. The problem this ticket is
intended to address could be handled by continuing to allow internal requests
to return 429, and then the collating shard could handle the 419 gracefully
(setting response to partial results).
was (Author: rblack):
This ticket makes circuit breakers useless for me (and probably others). For a
sharded system, the searches are performed by the internal requests to the
individual shards, which places additional load on them, even if their CPU is
pegged and would otherwise break the circuit. The problem of a circuit-broken
shard in an internal request could be handled by simply recognizing the
returned 429 for what it is, and handling it gracefully (setting response to
partial results).
> Trip a Circuit Breaker only for external requests
> -------------------------------------------------
>
> Key: SOLR-16982
> URL: https://issues.apache.org/jira/browse/SOLR-16982
> Project: Solr
> Issue Type: Improvement
> Components: Circuit Breakers
> Reporter: Jan Høydahl
> Assignee: Jan Høydahl
> Priority: Major
> Fix For: 9.4
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> In a sharded system, Circuit Breakers may now break a shard-request, failing
> the entire query request and in worst-case cause data loss (?) in an update
> request.
> We should see whether we can skip CB checking for the internal requests.
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