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Posted to issues@solr.apache.org by "ASF subversion and git services (Jira)" <ji...@apache.org> on 2021/09/22 16:48:00 UTC
[jira] [Commented] (SOLR-15286) A brand new replica in the legacy
setup reports healthy before replicating index from its leader
[ https://issues.apache.org/jira/browse/SOLR-15286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17418712#comment-17418712 ]
ASF subversion and git services commented on SOLR-15286:
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Commit 3cd71244d23704a7addf34eeac9f728862518f48 in solr's branch refs/heads/main from Pushkar Raste
[ https://gitbox.apache.org/repos/asf?p=solr.git;h=3cd7124 ]
SOLR-15286: A brand new follower in the legacy mode should wait to replicate index before reporting healthy (#238)
* https://issues.apache.org/jira/browse/SOLR-15286
Added log to the HealthCheckHandler for legacy mode to report followers healthy based on the index generation diff
Co-authored-by: Pushkar Raste <pr...@apple.com>
> A brand new replica in the legacy setup reports healthy before replicating index from its leader
> ------------------------------------------------------------------------------------------------
>
> Key: SOLR-15286
> URL: https://issues.apache.org/jira/browse/SOLR-15286
> Project: Solr
> Issue Type: Bug
> Components: replication (java)
> Affects Versions: 8.8.1
> Reporter: Pushkar Raste
> Assignee: Anshum Gupta
> Priority: Major
> Attachments: SOLR-15286.patch
>
> Time Spent: 2h 40m
> Remaining Estimate: 0h
>
> In the legacy mode when you add a brand new replica it immediately starts reporting healthy even if it hasn't fully replicated index from its leader. This issue is also exhibited when you shut down a replica and start it after a lot of data is indexed on the leader.
> If the replica reports healthy LB would continue to forward incoming requests to it and this would result in inconsistent data being retuned to the caller.
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