Andrew Mashenkov created IGNITE-9722:
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Summary: MVCC: Test
CacheMvccTransactionTest.testMvccCoordinatorChangeSimple fails.
Key: IGNITE-9722
URL: https://issues.apache.org/jira/browse/IGNITE-9722
Project: Ignite
Issue Type: Bug
Components: cache, mvcc
Reporter: Andrew Mashenkov
Fix For: 2.7
The test make transactional putAll() and then check data with Scan query and
getAll().
ScanQuery can miss some results on unstable topology which is expected as it
doesn't lock topology.
But getAll() can unexpectedly return stale results.
To reproduce the issue, one can change read mode SCAN->GET (passed to
checkAndGetAll() call) in checkPutGet() method.
It looks like rebalance can overwrite local backup entries or remap is broken
and we read local partition in moving state. Disabling fastLocGet in
GridPartitionedGetFuture.map() resolves the issue.
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