Sergey Chugunov created IGNITE-13557:
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Summary: Logging improvements for PDS memory restore process
Key: IGNITE-13557
URL: https://issues.apache.org/jira/browse/IGNITE-13557
Project: Ignite
Issue Type: Task
Components: persistence
Reporter: Sergey Chugunov
Fix For: 2.10
During partition state restore phase of restoring memory state from disk Ignite
logs a lot of useful information on debug level but very little on info.
In many situations more detailed information can be useful for identification
of performance issues but printing info about all partitions is impractical as
it produces too much logs.
The following improvements are possible though:
# To identify any imbalance between partitions and find bigger-than-average
partitions we should gather statistics for each partition during restore (part
size and time it took to restore it). After restore we'll print information
about average time and top five partitions that took the most time to restore.
# To make progress of restoring visible we should print short message with
intermediate progress information periodically. This should be applied when
restore starts taking too long time (e.g. if restore hasn't finished in 5
minutes start printing progress each minute).
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