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From "Pavel Kovalenko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-8544) WAL disabling during rebalance mechanism uses wrong topology version in case of exchanges merge
Date Mon, 21 May 2018 14:48:00 GMT
Pavel Kovalenko created IGNITE-8544:
---------------------------------------

             Summary: WAL disabling during rebalance mechanism uses wrong topology version
in case of exchanges merge
                 Key: IGNITE-8544
                 URL: https://issues.apache.org/jira/browse/IGNITE-8544
             Project: Ignite
          Issue Type: Bug
          Components: cache
    Affects Versions: 2.5
            Reporter: Pavel Kovalenko
            Assignee: Pavel Kovalenko
             Fix For: 2.6


After exchange is done, we're using initial exchange version to determine topology version
on what rebalance should be finished and save it. After rebalance finishing we check current
topology version and saved version and if they are equal, we enable WAL, own partitions and
do checkpoint. In other case we do nothing, because of topology change. 
In case of exchanges merge we're saving old topology version (before merge) and it leads to
ignoring logic of enabling WAL and etc, because check on topology version will be always false-positive.




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