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https://issues.apache.org/jira/browse/HBASE-23938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17105829#comment-17105829
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Michael Stack commented on HBASE-23938:
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What is a slow log? Why are we recording them and how will they be processed?
What will an operator 'do' with the info?
We record 'large' RPCs? What will we do w/ them? If the log is slow, what is
being written is a factor but the context at the time -- what other handlers
are doing at the time, what is going on in HDFS, write rate, background
replication, other process i/o -- are also worthy of factoring; is this
happening and the missing piece is this recording of RPC? We are already
recording RPCs in a circular buffer? This is not enough? We want to keep the
history for a longer time?
Thanks.
> Replicate slow/large RPC calls to HDFS
> --------------------------------------
>
> Key: HBASE-23938
> URL: https://issues.apache.org/jira/browse/HBASE-23938
> Project: HBase
> Issue Type: Sub-task
> Affects Versions: 3.0.0-alpha-1, 2.3.0, 1.7.0
> Reporter: Viraj Jasani
> Assignee: Viraj Jasani
> Priority: Major
> Fix For: 3.0.0-alpha-1, 2.3.0
>
> Attachments: Screen Shot 2020-05-07 at 12.01.26 AM.png
>
>
> We should provide capability to replicate complete slow and large RPC logs to
> HDFS or create new system table in addition to Ring Buffer. This way we don't
> lose any of slow logs and operator can retrieve all the slow/large logs.
> Replicating logs to HDFS / creating new system table should be configurable.
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