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https://issues.apache.org/jira/browse/CASSANDRA-8544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14264804#comment-14264804
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Leonid Shalupov commented on CASSANDRA-8544:
--------------------------------------------
I've seen it two times locally, one time it was reported by the customer of
JetBrains Upsource.
It always with compactions_in_progress files, see exception below:
{quote}
14:16:38.232 [MemtableFlushWriter:4] ERROR o.a.c.service.CassandraDaemon -
Exception in thread Thread[MemtableFlushWriter:4,5,main]
org.apache.cassandra.io.FSWriteError: java.nio.file.FileSystemException:
C:\Tools\Upsource\data\cassandra\data\system\compactions_in_progress-55080a
b05d9c388690a4acb25fe1f77b\system-compactions_in_progress-tmp-ka-13253-Statistics.db:
Der Prozess kann nicht auf die Datei zugreifen, da sie von ein
em anderen Prozess verwendet wird.
at
org.apache.cassandra.io.util.FileUtils.deleteWithConfirm(FileUtils.java:135)
~[cassandra-all-2.1.1.jar:2.1.1]
at
org.apache.cassandra.io.util.FileUtils.deleteWithConfirm(FileUtils.java:121)
~[cassandra-all-2.1.1.jar:2.1.1]
at org.apache.cassandra.io.sstable.SSTable.delete(SSTable.java:113)
~[cassandra-all-2.1.1.jar:2.1.1]
at
org.apache.cassandra.io.sstable.SSTableWriter.abort(SSTableWriter.java:355)
~[cassandra-all-2.1.1.jar:2.1.1]
at
org.apache.cassandra.io.sstable.SSTableWriter.abort(SSTableWriter.java:333)
~[cassandra-all-2.1.1.jar:2.1.1]
at
org.apache.cassandra.db.Memtable$FlushRunnable.writeSortedContents(Memtable.java:381)
~[cassandra-all-2.1.1.jar:2.1.1]
at
org.apache.cassandra.db.Memtable$FlushRunnable.runWith(Memtable.java:312)
~[cassandra-all-2.1.1.jar:2.1.1]
at
org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48)
~[cassandra-all-2.1.1.jar:2.1.1]
at
org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
~[cassandra-all-2.1.1.jar:2.1.1]
at
com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:297)
~[guava-16.0.jar:na]
at
org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1053)
~[cassandra-all-2.1.1.jar:2.1.1]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
~[na:1.7.0_71]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
~[na:1.7.0_71]
at java.lang.Thread.run(Thread.java:745) ~[na:1.7.0_71]
{quote}
This particular exception seems to be fixed by turning off AV and Windows
Search, but it's no good to fail on the next start.
> How are you resolving / working around this? Does it work after another
> attempt to restart?
No workarounds attempted. It doesn't work after another restart.
> Attaching a patch that should print out some more details on the NPE if you
> can reproduce it consistently.
Unfortunately I can't reproduce it consistently, so no luck here.
> Cassandra could not start with NPE in
> ColumnFamilyStore.removeUnfinishedCompactionLeftovers
> -------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-8544
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8544
> Project: Cassandra
> Issue Type: Bug
> Environment: Windows
> Reporter: Leonid Shalupov
> Assignee: Joshua McKenzie
> Labels: windows
> Fix For: 2.1.3
>
> Attachments: 8544_show_npe.txt
>
>
> It happens sometimes after restarts caused by undeletable files under Windows.
> {quote}
> Caused by: java.lang.NullPointerException
> at
> org.apache.cassandra.db.ColumnFamilyStore.removeUnfinishedCompactionLeftovers(ColumnFamilyStore.java:579)
> at
> org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:232)
> at
> org.apache.cassandra.service.CassandraDaemon.init(CassandraDaemon.java:377)
> at
> com.jetbrains.cassandra.service.CassandraServiceMain.start(CassandraServiceMain.java:81)
> ... 6 more
> {quote}
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