Kirill Tkalenko created IGNITE-20391:
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Summary: Return future metastore event processing from
UpdateListener#onUpdate
Key: IGNITE-20391
URL: https://issues.apache.org/jira/browse/IGNITE-20391
Project: Ignite
Issue Type: Improvement
Reporter: Kirill Tkalenko
Assignee: Kirill Tkalenko
Fix For: 3.0.0-beta2
When trying to switch from a configuration to catalog, it was discovered that
the metastore was not waiting for the catalog listeners to complete
notifications, which could lead to races and slightly unpredictable behavior.
For example, we want to create a table, we updated the catalog and started the
procedure for creating raft groups and did not wait for it to complete, we
release the metastore revison.
Rebalance engine starts the rebalance on a timer, recording this in the
metastore, and we immediately begin processing the rebalance and can fall with
*NullPointerException* on obtaining a stable topology from the metastore since
the raft groups have not yet had time to start.
Briefly need to be fixed here:
*org.apache.ignite.internal.catalog.storage.UpdateLogImpl.UpdateListener#onUpdate*.
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