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From "Prakash Khemani (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-4007) distributed log splitting can get indefinitely stuck
Date Wed, 24 Aug 2011 18:28:29 GMT

     [ https://issues.apache.org/jira/browse/HBASE-4007?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Prakash Khemani updated HBASE-4007:
-----------------------------------

    Status: Patch Available  (was: Open)

fixes
(1) buildup of RESCAN zookeeper nodes in the event that all the regionservers are down
(2) a bug in tracking when the last RESCAN node was created which could lead to too frequent
RESCAN node creation
(3) if master/splitlogmanager fails to complete the task handed over by a region-server/worker
then keep retrying indefinitely
(4) if a regionserver/worker dies then ensure that all its tasks are resubmitted

> distributed log splitting can get indefinitely stuck
> ----------------------------------------------------
>
>                 Key: HBASE-4007
>                 URL: https://issues.apache.org/jira/browse/HBASE-4007
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Prakash Khemani
>            Assignee: Prakash Khemani
>
> After the configured number of retries SplitLogManager is not going to resubmit log-split
tasks. In this situation even if the splitLogWorker that owns the task dies the task will
not get resubmitted.
> When a regionserver goes away then all the split-log tasks that it owned should be resubmitted
by the SplitLogMaster.

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