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https://issues.apache.org/jira/browse/HBASE-25329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17259327#comment-17259327
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Bharath Vissapragada commented on HBASE-25329:
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Patch seems fine but was curious if we considered adding something like a /rit 
end point (servlet) on master? 

Looks like the patch caps the number of RITs to 20 and emits a new metric that 
is a concatenation of hashes. IMO it is more useful to have a nice parseable 
(json) end point that has richer metadata (like server ritDuration and other 
RegionState attributes). It's much easier to parse this file rather than parse 
a metric which is plain hashes. Thoughts?



> Dump region hashes in logs for the regions that are stuck in transition for 
> more than a configured amount of time
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-25329
>                 URL: https://issues.apache.org/jira/browse/HBASE-25329
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Caroline
>            Assignee: Caroline
>            Priority: Minor
>         Attachments: HBASE-25329.branch-1.000.patch, 
> HBASE-25329.branch-2.000.patch, HBASE-25329.master.000.patch
>
>
> We have metrics for number of RITs as well as number of RITs above a certain 
> threshold, but we don't have any way of keeping track of the region hashes of 
> those RITs. It would be beneficial to emit those region hashes as a metric, 
> as well as log them, so that we don't accidentally lose this information for 
> debugging the RIT at a later tiime.



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