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From "Hoss Man (JIRA)" <>
Subject [jira] [Commented] (SOLR-13470) SolrException msg not always propogated to HttpClient (may be specific to SOLR-12999 ?)
Date Thu, 16 May 2019 05:51:00 GMT


Hoss Man commented on SOLR-13470:

the root cause of the problem appears to be SOLR-13471, triggered by SOLR-13474.

> SolrException msg not always propogated to HttpClient (may be specific to SOLR-12999
> ---------------------------------------------------------------------------------------
>                 Key: SOLR-13470
>                 URL:
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Hoss Man
>            Priority: Major
>         Attachments: SOLR-13470.patch
> While working on some test hardening for SOLR-12999, I discovered a strange bug related
to how SolrExceptions are propogated to HttpClients -- sometimes the message set by the server
side code when throwing the SolrException is set in the remote exception recieved by the HttpSolrClient,
other times it is not.
> it's not clear to me if this is specific to the IndexFetcher related code (added in SOLR-12999)
that throw SolrExceptions when the index is in the middle of a full copy, or if it's a general
problem that can happen with any SolrException->HTTP->RemoteSolrException via HttpSolrClient
that only happens to manifests because of some quirk in the threading of TestReplicationHandlerDiskOverFlow.

> (perhaps because we don't have a lot of HTTP level tests checking the exception message?)
> At the moment, TestReplicationHandlerDiskOverFlow works around this issue by only comparing
the HTTP Staus code to ensure it's what's expected, w/o checking the getMessage() ... I'll
attach a patch that demonstrates how including a getMessage() assertion can (sporadically)
fail, and includes some nocommit debugging code i added to HttpSolrClient to try and make
sense of what's happening...

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