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Posted to issues@ozone.apache.org by "Duong (Jira)" <ji...@apache.org> on 2024/05/16 23:48:00 UTC

[jira] [Assigned] (HDDS-10863) Changed default value of raft.grpc.server.leader.outstanding.appends.max may have performance implication in Ozone

     [ https://issues.apache.org/jira/browse/HDDS-10863?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Duong reassigned HDDS-10863:
----------------------------

    Assignee: Duong

> Changed default value of raft.grpc.server.leader.outstanding.appends.max may have performance implication in Ozone
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDDS-10863
>                 URL: https://issues.apache.org/jira/browse/HDDS-10863
>             Project: Apache Ozone
>          Issue Type: Bug
>            Reporter: Duong
>            Assignee: Duong
>            Priority: Major
>
> RATIS-1804 changes the default number of raft.grpc.server.leader.outstanding.appends.max from 128 to 8. This seems to imply an impact on Ozone performance because:
>  # More smaller appendEntries requests are sent over the network.
>  # The flush batch also becomes smaller because of fewer available log entries at the same time.
> I tested with it and saw it lower write throughput significantly (~20%).



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