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From "Ivan Rakov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-9913) Prevent data updates blocking in case of backup BLT server node leave
Date Wed, 17 Oct 2018 13:19:00 GMT
Ivan Rakov created IGNITE-9913:
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             Summary: Prevent data updates blocking in case of backup BLT server node leave
                 Key: IGNITE-9913
                 URL: https://issues.apache.org/jira/browse/IGNITE-9913
             Project: Ignite
          Issue Type: Improvement
          Components: general
            Reporter: Ivan Rakov
            Assignee: Ivan Rakov
             Fix For: 2.8


Ignite cluster performs distributed partition map exchange when any server node leaves or
joins the topology.
Distributed PME blocks all updates and may take a long time. If all partitions are assigned
according to the baseline topology and server node leaves, there's no actual need to perform
distributed PME: every cluster node is able to recalculate new affinity assigments and partition
states locally. If we'll implement such lightweight PME and handle mapping and lock requests
on new topology version correctly, updates won't be stopped on server node leave (except updates
of partitions that lost their primary copy).



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