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Posted to issues@ratis.apache.org by GitBox <gi...@apache.org> on 2022/03/09 01:51:25 UTC

[GitHub] [ratis] hanishakoneru commented on pull request #573: RATIS-1481. make state upgradate in notifyStateMachineToInstallSnapshot serialized

hanishakoneru commented on pull request #573:
URL: https://github.com/apache/ratis/pull/573#issuecomment-1062472448


   @Xushaohong, please bear with me as I try to understand what is happening here and root causing the issue. 
   
   > Actually, Leader will send an appendEntries request. It keeps send empty appendEntries requests to follower to keep in contact with follower as shouldNotifyToInstallSnapshot() is true as the below.
   Hence The follower will send back INCONSISTENCY to the leader and the leader will updateNextIndex.
   
   What is the follower sends SNAPSHOT_INSTALLATION_IN_PROGRESS status instead of INCONSISTENCY status to the appendEntries request? IIUC, the issue is occurring because of this inconsistency reply to appendEntries request from Leader.


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