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Posted to issues@ozone.apache.org by "Mukul Kumar Singh (Jira)" <ji...@apache.org> on 2021/08/23 15:21:00 UTC
[jira] [Created] (HDDS-5660) Separate container caches for Open and
Closed containers
Mukul Kumar Singh created HDDS-5660:
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Summary: Separate container caches for Open and Closed containers
Key: HDDS-5660
URL: https://issues.apache.org/jira/browse/HDDS-5660
Project: Apache Ozone
Issue Type: Bug
Components: Ozone Datanode
Reporter: Mukul Kumar Singh
Assignee: Mukul Kumar Singh
it has been seen in deployments that with large number of containers on datanode. we have seen cache misses on the rocksDB cache.
This jira proposes
a) to have separate caches for open and closed container
b) rocksDB containers in open container cache are never evicted.
c) Open containers are moved from open to close container cache it they are closed/quasi closed.
d) Closed container are cached in LRU fashion as they are cached right now
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