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From "Manish Zope (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-4146) Delete sstables on abnormal termination of sstableloader session
Date Fri, 13 Apr 2012 12:27:18 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-4146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Manish Zope updated CASSANDRA-4146:
-----------------------------------

    Remaining Estimate: 48h  (was: 168h)
     Original Estimate: 48h  (was: 168h)
    
> Delete sstables on abnormal termination of sstableloader session
> ----------------------------------------------------------------
>
>                 Key: CASSANDRA-4146
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4146
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>    Affects Versions: 1.0.9
>            Reporter: Manish Zope
>              Labels: sstableloader, tools
>             Fix For: 1.1.0
>
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> There are three cases where we have observed the abnormal termination
> 1) In case of exception while loading.
> 2) User terminates the loading process.
> 3) If some node is down OR un-reachable then sstableloader get stucked.In this case user
have to terminate the process in between.
> In case of abnormal termination, sstables (which are added in this session) remains as
it is on the cluster.In case user starts the process all over again by fixing the exception,
it results in duplication of the data till Major compaction is triggered.
> sstableloader can maintain the session while loading the sstables in cluster.So in case
of abnormal termination sstableloader triggers the event that will delete the sstables loaded
in that session.
> Also It would be great to have timeout in case of sstableloader.That can be kept configurable.
> So if sstableloader process got stucked for period longer than timeout, it can terminate
itself.

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