Kirill Gusakov created IGNITE-16955:
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Summary: Improve logging of rebalance process
Key: IGNITE-16955
URL: https://issues.apache.org/jira/browse/IGNITE-16955
Project: Ignite
Issue Type: Task
Reporter: Kirill Gusakov
We must improve logging of rebalance logic with the following points:
- log triggers of rebalance (change of number of replicas at the moment)
- log receiving of changes on pending/stable keys
- log start/stop raft nodes with the info about the reason
- log the result of multi-invoke call (we can use `yield` to detect which
branch was executed)
- log the call of changePeersAsync on the client side
- log the real error of the call above, if error occurred (we need to change
the error reporting of sendWithRetry method to support this point)
- check if needed extensions of raft logs for changes in raft group
configuration
- log the progress of raft replication during rebalance (it can be tricky
enough, due to the fact, that replicator has no information about the reason of
replication)
- logging for
onLeaderElected/onNewPeersConfigurationApplied/onReconfigurationError
All logs should contains the most detailed context:
* table
* partition
* metastorage keys' values (old/new)
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