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From "Sam Tunnicliffe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-8293) Restore Commitlogs throws exception on startup on trunk
Date Fri, 30 Jan 2015 13:20:34 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14298611#comment-14298611
] 

Sam Tunnicliffe commented on CASSANDRA-8293:
--------------------------------------------

[~JoshuaMcKenzie], you only need to change the second occurrence of VERSION_21, the first
is valid as it is. Also, your local mods to conf/commitlog_archiving.properties are included
in the patch. Otherwise, LGTM


> Restore Commitlogs throws exception on startup on trunk
> -------------------------------------------------------
>
>                 Key: CASSANDRA-8293
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8293
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Philip Thompson
>            Assignee: Joshua McKenzie
>             Fix For: 3.0
>
>         Attachments: 8293_v1.txt, CommitLog-5-1415734519132.log, CommitLog-5-1415734519133.log,
CommitLog-5-1415734519134.log, CommitLog-5-1415734519135.log, node1.log
>
>
> Running Cassandra from trunk, restoring commitlogs generated from trunk throws the following
exception:
> {code}
> ERROR [main] 2014-11-11 13:47:14,738 CassandraDaemon.java:482 - Exception encountered
during startup
> java.lang.IllegalStateException: Unsupported commit log version: 5
>         at org.apache.cassandra.db.commitlog.CommitLogArchiver.maybeRestoreArchive(CommitLogArchiver.java:215)
~[main/:na]
>         at org.apache.cassandra.db.commitlog.CommitLog.recover(CommitLog.java:116) ~[main/:na]
>         at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:300)
[main/:na]
>         at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:465)
[main/:na]
>         at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:557)
[main/:na]
> {code}
> This is reproduced by the dtest {{snapshot_test.py:TestArchiveCommitlog.test_archive_commitlog}}.
Attached are the system log of the node that threw the exception, and the commitlog files
used. I am restoring the commitlog files by editing conf/commitlog_archiving.properties to
look like this:{code}# Command to execute to make an archived commitlog live again.
> # Parameters: %from is the full path to an archived commitlog segment (from restore_directories)
> #             %to is the live commitlog directory
> # Example: restore_command=cp -f %from %to
> restore_command=cp -f %from %to
> # Directory to scan the recovery files in.
> restore_directories=/Users/philipthompson/cstar/archived/{code}. If the files are placed
into the live commitlog directory manually, and then C* is started, there are no exceptions.



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