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Posted to issues@ozone.apache.org by "Sumit Agrawal (Jira)" <ji...@apache.org> on 2024/05/30 11:25:00 UTC
[jira] [Assigned] (HDDS-10945) validate mis-configuration for peer node count in OM
[ https://issues.apache.org/jira/browse/HDDS-10945?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sumit Agrawal reassigned HDDS-10945:
------------------------------------
Assignee: Sumit Agrawal
> validate mis-configuration for peer node count in OM
> ----------------------------------------------------
>
> Key: HDDS-10945
> URL: https://issues.apache.org/jira/browse/HDDS-10945
> Project: Apache Ozone
> Issue Type: Improvement
> Components: Ozone Manager
> Reporter: Sumit Agrawal
> Assignee: Sumit Agrawal
> Priority: Minor
>
> one of the OM is continuously in an election state when 4 om is configured, as ratis quorum needs odd number of nodes, but 4 nodes are configurd.
>
> {code:java}
> ozone-om.sl0548.log (OM2 Leader):
> [..]
> 2023-11-08 16:28:40,670 INFO [grpc-default-executor-29]-org.apache.ratis.server.RaftServer$Division: om2@group-278936BBF583: receive requestVote(PRE_VOTE, om3, group-278936BBF583, 2248468, (t:2248467, i:450468))
> 2023-11-08 16:28:40,670 INFO [grpc-default-executor-29]-org.apache.ratis.server.impl.VoteContext: om2@group-278936BBF583-LEADER: reject PRE_VOTE from om3: this server is the leader and still has leadership
> 2023-11-08 16:28:40,670 INFO [grpc-default-executor-29]-org.apache.ratis.server.RaftServer$Division: om2@group-278936BBF583 replies to PRE_VOTE vote request: om3<-om2#0:FAIL-t2248468. Peer's state: om2@group-278936BBF583:t2248468, leader=om2, voted=om2, raftlog=Memoized:om2@group-278936BBF583-SegmentedRaftLog:OPENED:c464230, conf=450469: peers:[om1|rpc:sl0547.sii24.pole-emploi.intra:9872|admin:|client:|dataStream:|priority:0|startupRole:FOLLOWER, om3|rpc:sl0549.sii24.pole-emploi.intra:9872|admin:|client:|dataStream:|priority:0|startupRole:FOLLOWER, om2|rpc:sl0548.sii24.pole-emploi.intra:9872|admin:|client:|dataStream:|priority:0|startupRole:FOLLOWER]|listeners:[], old=null
> [..] {code}
>
> OMs state:
> sl0546:~> sudo ozone admin om getserviceroles -id=ozone01
> om1 : FOLLOWER (sl0546.sii24.pole-emploi.intra)
> om3 : FOLLOWER (sl0549.sii24.pole-emploi.intra)
> om2 : LEADER (sl0548.sii24.pole-emploi.intra)
>
>
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