Pavel Kovalenko created IGNITE-8122:
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Summary: Partition state restored from WAL may be lost if no
checkpoints are done
Key: IGNITE-8122
URL: https://issues.apache.org/jira/browse/IGNITE-8122
Project: Ignite
Issue Type: Bug
Components: cache
Affects Versions: 2.4
Reporter: Pavel Kovalenko
Assignee: Pavel Kovalenko
Fix For: 2.5
Problem:
1) Start several nodes with enabled persistence.
2) Make sure that all partitions for 'ignite-sys-cache' have status OWN on all
nodes and appropriate PartitionMetaStateRecord record is logged to WAL
3) Stop all nodes and start again, activate cluster. Checkpoint for
'ignite-sys-cache' is empty, because there were no data in cache.
4) State for all partitions will be restored to OWN
(GridCacheDatabaseSharedManager#restoreState) from WAL, but not recorded to
page memory, because there were no checkpoints and data in cache. Store manager
is not properly initialized for such partitions.
5) On exchange done we're trying to restore states of partitions
(initPartitionsWhenAffinityReady) on all nodes. Because page memory is empty,
states of all partitions will be restored to MOVING by default.
6) All nodes start to rebalance partitions from each other and this process
become unpredictable because we're trying to rebalance from MOVING partitions.
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