[jira] [Commented] (SOLR-10126) PeerSyncReplicationTest is a flakey test.

["Cao Manh Dat (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-10126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16116619#comment-16116619 ] 

Cao Manh Dat commented on SOLR-10126:
-------------------------------------

I'm looking at this test, I see some failure when REPLICATION.peerSync.errors == 1. Here are the case
- leader and replica receive update from 1 to 4
- replica stop
- replica miss updates 5, 6
- replica start recovery
	+ replica buffer updates 7, 8
	+ replica request versions from leader, 
	+ replica get recent versions which is 1,2,3,4,7,8
	+ in the same time leader receive update 9, so it will return updates from 1 to 9 (for request versions)
	+ replica do peersync and request updates 5, 6, 9 from leader
	+ replica apply updates 5, 6, 9. Its index does not have update 7, 8 and maxVersionSpecified for fingerprint is 9, therefore compare fingerprint will fail



> PeerSyncReplicationTest is a flakey test.
> -----------------------------------------
>
>                 Key: SOLR-10126
>                 URL: https://issues.apache.org/jira/browse/SOLR-10126
>             Project: Solr
>          Issue Type: Test
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Mark Miller
>         Attachments: faillogs.tar.gz
>
>
> Could be related to SOLR-9555, but I will see what else pops up under beasting.



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