Sergey Chugunov created IGNITE-7258:
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Summary: BinaryMetadata may be lost if node with outdated metadata
becomes a coordinator
Key: IGNITE-7258
URL: https://issues.apache.org/jira/browse/IGNITE-7258
Project: Ignite
Issue Type: Bug
Affects Versions: 2.1
Reporter: Sergey Chugunov
Assignee: Sergey Chugunov
Priority: Critical
Fix For: 2.4
Consider the following scenario in PDS-enabled mode:
# Multinode cluster is up and running, BinaryMetadata for some type is created
and spread across all nodes.
# Node#1 leaves the cluster, then BinaryMetadata is updated one more time.
# All cluster is restarted *and Node#1 becomes a coordinator*.
As in current implementation coordinator is considered to own a master copy of
BinaryMetadata, it spreads its out-of-date version to all nodes so update from
step#2 is lost.
We need to improve BinaryMetadata exchange protocol so nodes on join will send
their version of BinaryMetadata to coordinator so it is able to update its own
local version.
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