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Posted to issues@ozone.apache.org by "Rajesh Balamohan (Jira)" <ji...@apache.org> on 2022/06/06 07:12:00 UTC
[jira] [Created] (HDDS-6833) Reduce locking contention in OzoneManager
Rajesh Balamohan created HDDS-6833:
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Summary: Reduce locking contention in OzoneManager
Key: HDDS-6833
URL: https://issues.apache.org/jira/browse/HDDS-6833
Project: Apache Ozone
Issue Type: Improvement
Reporter: Rajesh Balamohan
Attachments: Screenshot 2022-06-02 at 1.34.09 PM.png
{color:#172b4d}This is based on a pure lookup test done based on "warp" client ([https://github.com/minio/warp).] Lookup test can be performed via "stat" option in warp.{color}
*Issue:*
*=====*
OM's getBucketInfo(), infoVolume(), listKey() etc internally makes use of {{{}checkAcl{}}}.
This internally uses "getVolumeOwner()" acquiring and releasing locks. Some of these getBucketInfo, infoVolume() information can be cached locally instead of locking/releasing everytime to substantially reduce lock contention. If needed, it can be invalidated after sometime.
!Screenshot 2022-06-02 at 1.34.09 PM.png|width=1899,height=953!
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