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Posted to issues@ignite.apache.org by "Ivan Rakov (JIRA)" <ji...@apache.org> on 2017/07/28 17:57:00 UTC

[jira] [Created] (IGNITE-5874) Store TTL expire times in B+ tree on per-partition basis

Ivan Rakov created IGNITE-5874:
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             Summary: Store TTL expire times in B+ tree on per-partition basis
                 Key: IGNITE-5874
                 URL: https://issues.apache.org/jira/browse/IGNITE-5874
             Project: Ignite
          Issue Type: Improvement
          Components: cache
    Affects Versions: 2.1
            Reporter: Ivan Rakov
             Fix For: 2.2


TTL expire times for entries are stored in PendingEntriesTree, which is singleton for cache. When expiration occurs, all system threads iterate through the tree in order to remove expired entries. Iterating through single tree causes contention and perfomance loss.
We should keep instance of PendingEntriesTree for each partition, like we do for CacheDataTree.



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