[jira] [Updated] (HBASE-17205) Add a metric for the duration of region in transition

["Guanghao Zhang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-17205?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guanghao Zhang updated HBASE-17205:
-----------------------------------
    Attachment: HBASE-17205.patch

> Add a metric for the duration of region in transition
> -----------------------------------------------------
>
>                 Key: HBASE-17205
>                 URL: https://issues.apache.org/jira/browse/HBASE-17205
>             Project: HBase
>          Issue Type: Improvement
>          Components: Region Assignment
>            Reporter: Guanghao Zhang
>            Assignee: Guanghao Zhang
>            Priority: Minor
>         Attachments: HBASE-17205.patch
>
>
> When work for HBASE-17178, I found there are not a metric for the overall duration of region in transition. When move a region form A to B, the transformation of region state is PENDING_CLOSE => CLOSING => CLOSED => PENDING_OPEN => OPENING => OPENED. When transform old region state to new region state, it update the time stamp to current time. So we can't get the overall transformation's duration of region in transition. Add a rit duration to RegionState for accumulating this metric.



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