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Posted to dev@ignite.apache.org by "Sergey Chugunov (JIRA)" <ji...@apache.org> on 2018/05/11 15:10:00 UTC

[jira] [Created] (IGNITE-8474) WalStateNodeLeaveExchangeTask prevents merge exchanges on leaving many nodes

Sergey Chugunov created IGNITE-8474:
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             Summary: WalStateNodeLeaveExchangeTask prevents merge exchanges on leaving many nodes
                 Key: IGNITE-8474
                 URL: https://issues.apache.org/jira/browse/IGNITE-8474
             Project: Ignite
          Issue Type: Bug
    Affects Versions: 2.5
            Reporter: Sergey Chugunov
            Assignee: Sergey Chugunov
             Fix For: 2.6


Exchange merge mechanism provides huge optimization when a lot of nodes join or leave cluster simultaneously.

In IGNITE-7003 WalStateNodeLeaveExchangeTask custom exchange task was added which is generated for each NODE_LEFT/NODE_FAILED event.
Because of property skipForExchangeMerge set to false on this task it prohibits exchange merge optimization.

The property needs to be reconsidered and changed if it is not crucial for this functionality.



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