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https://issues.apache.org/jira/browse/HBASE-6377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13413104#comment-13413104
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Lars Hofhansl commented on HBASE-6377:
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Looks good to me. Reasoning makes sense.
We can report per of latency just by dividing the batch latency by the batch
size (still no need to deconstruct per individual op). Not sure if that more
useful or less.
Does this need more discussion? If so, maybe the best course of action is to
revert HBASE-5533 now and regroup.
> HBASE-5533 metrics miss all operations submitted via MultiAction
> ----------------------------------------------------------------
>
> Key: HBASE-6377
> URL: https://issues.apache.org/jira/browse/HBASE-6377
> Project: HBase
> Issue Type: Bug
> Components: metrics, regionserver
> Affects Versions: 0.96.0, 0.94.1
> Reporter: Andrew Purtell
> Assignee: Andrew Purtell
> Fix For: 0.94.2
>
> Attachments: 6377-trunk-simple.patch
>
>
> A client application (LoadTestTool) calls put() on HTables. Internally to the
> HBase client those puts are batched into MultiActions. The total number of
> put operations shown in the RegionServer's put metrics histogram never
> increases from 0 even though millions of such operations are made. Needless
> to say the latency for those operations are not measured either. The value of
> HBASE-5533 metrics are suspect given the client will batch put and delete ops
> like this.
> I had a fix in progress but HBASE-6284 messed it up. Before, MultiAction
> processing in HRegionServer would distingush between puts and deletes and
> dispatch them separately. It was easy to account for the time for them. Now
> both puts and deletes are submitted in batch together as mutations.
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