[jira] [Updated] (HBASE-13090) Progress heartbeats for long running scanners

["Sean Busbey (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-13090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Busbey updated HBASE-13090:
--------------------------------
    Fix Version/s:     (was: 1.2.0)

> Progress heartbeats for long running scanners
> ---------------------------------------------
>
>                 Key: HBASE-13090
>                 URL: https://issues.apache.org/jira/browse/HBASE-13090
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Andrew Purtell
>            Assignee: Jonathan Lawlor
>             Fix For: 2.0.0, 1.1.0
>
>         Attachments: 13090-branch-1.addendum, HBASE-13090-v1.patch, HBASE-13090-v2.patch, HBASE-13090-v3.patch, HBASE-13090-v3.patch, HBASE-13090-v4.patch, HBASE-13090-v6.patch, HBASE-13090-v7.patch
>
>
> It can be necessary to set very long timeouts for clients that issue scans over large regions when all data in the region might be filtered out depending on scan criteria. This is a usability concern because it can be hard to identify what worst case timeout to use until scans are occasionally/intermittently failing in production, depending on variable scan criteria. It would be better if the client-server scan protocol can send back periodic progress heartbeats to clients as long as server scanners are alive and making progress.
> This is related but orthogonal to streaming scan (HBASE-13071). 



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