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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