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From "Sam Tunnicliffe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-6904) commitlog segments may not be archived after restart
Date Fri, 19 Sep 2014 19:09:34 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-6904?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sam Tunnicliffe updated CASSANDRA-6904:
---------------------------------------
    Attachment: 2.0-6904.txt
                2.1-6904.txt

Attaching patches for 2.0 & 2.1

If we choose to apply to 2.0 we should note that replaying commit logs isn't safe in the presence
of counters (though it's not really made any less safe by this).

For 2.1 I've added an overloaded version of maybeArchive to CLA (actually, it's a resurrection
of the pre 2.1 version), which takes a file path & name. This is what gets called at startup
as instantiating segments from the unmanaged files in order to archive causes them to be recycled
before they're archived. Plus, the version of maybeArchive that takes a CLS waits for it to
be synced before performing the archive command, which will never happen for these files.

dtest added in https://github.com/riptano/cassandra-dtest/pull/92

> commitlog segments may not be archived after restart
> ----------------------------------------------------
>
>                 Key: CASSANDRA-6904
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6904
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Sam Tunnicliffe
>             Fix For: 2.0.11, 2.1.1
>
>         Attachments: 2.0-6904.txt, 2.1-6904.txt
>
>
> commitlog segments are archived when they are full, so the current active segment will
not be archived on restart (and its contents will not be available for pitr).



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