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Posted to dev@lucene.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2016/11/24 18:57:58 UTC
[jira] [Commented] (SOLR-9512) CloudSolrClient's cluster state
cache can break direct updates to leaders
[ https://issues.apache.org/jira/browse/SOLR-9512?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15694027#comment-15694027 ]
ASF subversion and git services commented on SOLR-9512:
-------------------------------------------------------
Commit e309f9058985375076cac0ed982a158dd865b86a in lucene-solr's branch refs/heads/branch_6x from [~noble.paul]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=e309f90 ]
SOLR-9784: Refactor CloudSolrClient to eliminate direct dependency on ZK
SOLR-9512: CloudSolrClient's cluster state cache can break direct updates to leaders
> CloudSolrClient's cluster state cache can break direct updates to leaders
> -------------------------------------------------------------------------
>
> Key: SOLR-9512
> URL: https://issues.apache.org/jira/browse/SOLR-9512
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Alan Woodward
> Assignee: Noble Paul
> Attachments: SOLR-9512.patch, SOLR-9512.patch, SOLR-9512.patch
>
>
> This is the root cause of SOLR-9305 and (at least some of) SOLR-9390. The process goes something like this:
> Documents are added to the cluster via a CloudSolrClient, with directUpdatesToLeadersOnly set to true. CSC caches its view of the DocCollection. The leader then goes down, and is reassigned. Next time documents are added, CSC checks its cache again, and gets the old view of the DocCollection. It then tries to send the update directly to the old, now down, leader, and we get ConnectionRefused.
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