[jira] [Created] (CASSANDRA-6974) Replaying archived commitlogs isn't working

["Ryan McGuire (JIRA)" <ji...@apache.org>]

Ryan McGuire created CASSANDRA-6974:
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             Summary: Replaying archived commitlogs isn't working
                 Key: CASSANDRA-6974
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6974
             Project: Cassandra
          Issue Type: Bug
            Reporter: Ryan McGuire


I have a test for restoring archived commitlogs, which is not working in 2.1 HEAD.  My commitlogs consist of 30,000 inserts, but system.log indicates there were only 2 mutations replayed:

{code}
INFO  [main] 2014-04-02 11:49:54,173 CommitLog.java:115 - Log replay complete, 2 replayed mutations
{code}

There are several warnings in the logs about bad headers and invalid CRCs: 

{code}
WARN  [main] 2014-04-02 11:49:54,156 CommitLogReplayer.java:138 - Encountered bad header at position 0 of commit log /tmp/dtest
-mZIlPE/test/node1/commitlogs/CommitLog-4-1396453793570.log, with invalid CRC. The end of segment marker should be zero.
{code}

compare that to the same test run on 2.0, where it replayed many more mutations:

{code}
 INFO [main] 2014-04-02 11:49:04,673 CommitLog.java (line 132) Log replay complete, 35960 replayed mutations
{code}

I'll attach the system logs for reference.

[Here is the dtest to reproduce this|https://github.com/riptano/cassandra-dtest/blob/master/snapshot_test.py#L75] - (This currently relies on the fix for snapshots available in CASSANDRA-6965.)



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