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https://issues.apache.org/jira/browse/HBASE-5886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13265055#comment-13265055
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Nicolas Spiegelberg commented on HBASE-5886:
--------------------------------------------
I'm confused about why this metric is useful. This metric is never accurate
and determining data loss because querying it is async from the Put path. If
you are looking for a restart point, you should have another thread call
HTable.flush() and checkpoint or add an API to query for the latest timestamp
in a CF's storefile.
> Add new metric for possible data loss due to puts without WAL
> --------------------------------------------------------------
>
> Key: HBASE-5886
> URL: https://issues.apache.org/jira/browse/HBASE-5886
> Project: HBase
> Issue Type: New Feature
> Components: metrics, regionserver
> Reporter: Matteo Bertozzi
> Assignee: Matteo Bertozzi
> Priority: Minor
> Labels: metrics
> Attachments: HBASE-5886-v0.patch, HBASE-5886-v1.patch,
> HBASE-5886-v2.patch
>
>
> Add a metrics to keep track of puts without WAL and possible data loss size.
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