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Posted to issues@solr.apache.org by "Noble Paul (Jira)" <ji...@apache.org> on 2022/09/17 05:58:00 UTC

[jira] [Created] (SOLR-16414) Race condition in PRS state updates

Noble Paul created SOLR-16414:
---------------------------------

             Summary: Race condition in PRS state updates
                 Key: SOLR-16414
                 URL: https://issues.apache.org/jira/browse/SOLR-16414
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Noble Paul


For PRS collections the individual states are potentially updated from individual nodes and sometimes from overseer too. it's possible that

 
 # OP1 is sent to overseer at T1
 # OP2 is executed in the node itself at T2

 

Because we cannot guarantee that the OP1 sent to overseer may execute before OP2 tyhe final state will be the result of OP1 which is incorrect and can lead to errors .

The solution is to never do any PRS writes from overseer. 



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