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Posted to issues@ignite.apache.org by "Vladislav Pyatkov (Jira)" <ji...@apache.org> on 2020/07/14 11:23:00 UTC

[jira] [Created] (IGNITE-13253) Advanced heuristics for historical rebalance

Vladislav Pyatkov created IGNITE-13253:
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             Summary: Advanced heuristics for historical rebalance
                 Key: IGNITE-13253
                 URL: https://issues.apache.org/jira/browse/IGNITE-13253
             Project: Ignite
          Issue Type: Improvement
            Reporter: Vladislav Pyatkov


Before, cluster detects partitions that have not to rebalance by history, by them size. This threshold might be set through a system property IGNITE_PDS_WAL_REBALANCE_THRESHOLD. But it is not fair deciding which partitions will be rebalanced by WAL only by them size. WAL can have much more records than size of a partition (many update by one key) and that rebalance required more data than full transferring by network.
Need to implement a heuristic, that might to estimate data size.



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