as the stacktrace suggests, HintedHandoffManager does major
compactions of just the hints columnfamily after hint delivery
2010/6/4 casablinca126.com <casabli...@126.com>:
> hi,
> I have not used nodetool repair or nodetool compact . So how is
> MajorCompaction triggered?
>
> ------------------
> casablinca126.com
> 2010-06-04
>
> -------------------------------------------------------------
> 发件人：casablinca126.com
> 发送日期：2010-06-04 18:05:11
> 收件人：user
> 抄送：
> 主题：Fatal exception in with compaction
>
> hi ,
> I get a fatal exception with my cassandra cluster:
>
> java.lang.NoClassDefFoundErrororg/apache/cassandra/db/CompactionManager$4
> at
> org.apache.cassandra.db.CompactionManager.submitMajor(CompactionManager.java:156)
> at
> org.apache.cassandra.db.CompactionManager.submitMajor(CompactionManager.java:151)
> at
> org.apache.cassandra.db.HintedHandOffManager.deliverAllHints(HintedHandOffManager.java:205)
> at
> org.apache.cassandra.db.HintedHandOffManager.access$000(HintedHandOffManager.java:80)
> at
> org.apache.cassandra.db.HintedHandOffManager$1.runMayThrow(HintedHandOffManager.java:100)
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
> at java.lang.Thread.run(Thread.java:619)
> Caused by: java.lang.ClassNotFoundException:
> org.apache.cassandra.db.CompactionManager$4
> at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
> ... 7 more
> I made a modification that , do not compact sstables whose size
> >10GB:
> static Set<List<SSTableReader>> getBuckets(Iterable<SSTableReader>
> files, long min)
> {
> Map<List<SSTableReader>, Long> buckets = new
> HashMap<List<SSTableReader>, Long>();
> for (SSTableReader sstable : files)
> {
> long size = sstable.length();
> if(size > 10L * 1024L * 1024L * 1024L)
> continue;
> Could some one help explain why this exception happened? Thanks a lot!
>
> regards,
>
> --------------
> casablinca126.com
> 2010-06-04
>
>
>
--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com
