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Posted to commits@cassandra.apache.org by "Stefania (JIRA)" <ji...@apache.org> on 2015/06/26 12:05:04 UTC
[jira] [Commented] (CASSANDRA-9635) Silent startup failure with
filesystem that does not support mmap
[ https://issues.apache.org/jira/browse/CASSANDRA-9635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14602642#comment-14602642 ]
Stefania commented on CASSANDRA-9635:
-------------------------------------
Could you attach your cassandra.yaml and the log file? I see what the problem is from code inspection but I don't have easy access to a virtual box so I am hoping to reproduce this by 'mocking' the exact exception in your log file.
I think the solution to avoid the deadlock might be a new startup check but I need to consult with more experienced developers first.
> Silent startup failure with filesystem that does not support mmap
> -----------------------------------------------------------------
>
> Key: CASSANDRA-9635
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9635
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Kevin McLaughlin
> Assignee: Stefania
> Fix For: 2.0.x
>
> Attachments: c_tdump.txt
>
>
> C* version 2.0.9.
> When running C* in virtualbox on OS X via boot2docker with the data directory on a shared volume from the host system (vboxfs), C* fails to start without printing any errors.
> I do not know if C* is supposed to support filesystems that do not support mmap (does not appear so), however, I think the failure exposes a static initialization deadlock (http://ternarysearch.blogspot.ru/2013/07/static-initialization-deadlock.html).
> I believe the virtualbox "bug" is https://www.virtualbox.org/ticket/819.
> Stacktrace of the deadlock is attached. When placing a t.printStackTrace() between lines 115 and 116 in https://github.com/apache/cassandra/blob/cassandra-2.0.9/src/java/org/apache/cassandra/db/commitlog/CommitLogAllocator.java, the stack trace at startup is:
> {quote}
> DEBUG 21:16:54,716 Creating new commit log segment /var/lib/cassandra/commitlog/CommitLog-3-1435007814714.log
> FSWriteError in /var/lib/cassandra/commitlog/CommitLog-3-1435007814714.log
> at org.apache.cassandra.db.commitlog.CommitLogSegment.<init>(CommitLogSegment.java:143)
> at org.apache.cassandra.db.commitlog.CommitLogSegment.freshSegment(CommitLogSegment.java:90)
> at org.apache.cassandra.db.commitlog.CommitLogAllocator.createFreshSegment(CommitLogAllocator.java:263)
> at org.apache.cassandra.db.commitlog.CommitLogAllocator.access$500(CommitLogAllocator.java:50)
> at org.apache.cassandra.db.commitlog.CommitLogAllocator$1.runMayThrow(CommitLogAllocator.java:109)
> at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.io.IOException: Invalid argument
> at sun.nio.ch.FileChannelImpl.map0(Native Method)
> at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:893)
> at org.apache.cassandra.db.commitlog.CommitLogSegment.<init>(CommitLogSegment.java:133)
> ... 6 more
> {quote}
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