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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4042) TestDistributedLogSplitting broke on trunk
Date Wed, 29 Jun 2011 06:11:28 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13057020#comment-13057020
] 

stack commented on HBASE-4042:
------------------------------

More.  More interesting deadlocks when servers carrying both -ROOT- and .META. are carried
by the servers that are killed.

This test also uses a timeout of 30 seconds but default rpc setup timeout is 60 seconds.

> TestDistributedLogSplitting broke on trunk
> ------------------------------------------
>
>                 Key: HBASE-4042
>                 URL: https://issues.apache.org/jira/browse/HBASE-4042
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>
> There's a couple of issues going on here.  Its taken me a while to figure whats up and
am still not done.  Here's what I found so far:
> + The last test testWorkerAbort has been hanging because there is no one to process the
log split the final assert is expecting completed; we've killed the lone RS that this test
put up.  This test passes most of the time for me locally; luck has the log processed before
the RS with its splitLogWorker processes the log before we go out.  Putting up a new RS with
a splitLogWorker makes this test pass for me most of the time now but I've seen an error in
testing so need to dig in still.
> + The first test, testThreeRSAbort is a good test.  Its turning up a issue that has nothing
to do w/ log splitting.  If .META. is on one of the RSs that goes down -- we launch w/ 6 RSs
-- then we get stuck in catalog tracker waiting on meta to be up again (though it deploys
fin -- we don't notice its deploy in master).  I'm on this one at mo. 

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