This is a known bug: https://issues.apache.org/jira/browse/CASSANDRA-2867 (note that the issue title is not exact, in that this is not a problem with an upgrade from 0.7 to 0.8).
This will be corrected in 0.8.3 that is under a vote right now to be released. -- Sylvain On Wed, Aug 3, 2011 at 12:57 PM, jens müller <jens.mueller.li...@googlemail.com> wrote: > Hello, > > I would be thankfull for any advice how to recover from the following > problem: > > 1.) When I Start Cassandra, then I get the following exception: > > INFO 12:51:08,964 Heap size: 1573912576/1574961152 > INFO 12:51:08,966 JNA not found. Native methods will be disabled. > INFO 12:51:08,973 Loading settings from > file:/usr/local/cassandra/0.8.1/conf/cassandra.yaml > INFO 12:51:09,102 DiskAccessMode 'auto' determined to be mmap, > indexAccessMode is mmap > INFO 12:51:09,205 Global memtable threshold is enabled at 500MB > INFO 12:51:09,206 Removing compacted SSTable files (see > http://wiki.apache.org/cassandra/MemtableSSTable) > INFO 12:51:09,211 Removing compacted SSTable files (see > http://wiki.apache.org/cassandra/MemtableSSTable) > INFO 12:51:09,212 Removing compacted SSTable files (see > http://wiki.apache.org/cassandra/MemtableSSTable) > INFO 12:51:09,214 Removing compacted SSTable files (see > http://wiki.apache.org/cassandra/MemtableSSTable) > INFO 12:51:09,215 Removing compacted SSTable files (see > http://wiki.apache.org/cassandra/MemtableSSTable) > INFO 12:51:09,216 Removing compacted SSTable files (see > http://wiki.apache.org/cassandra/MemtableSSTable) > INFO 12:51:09,251 Opening > /usr/local/cassandra/0.8.1/data/data/system/NodeIdInfo-g-1 > INFO 12:51:09,332 Opening > /usr/local/cassandra/0.8.1/data/data/system/IndexInfo-g-1 > INFO 12:51:09,343 Opening > /usr/local/cassandra/0.8.1/data/data/system/Schema-g-61 > INFO 12:51:09,348 Opening > /usr/local/cassandra/0.8.1/data/data/system/Migrations-g-61 > INFO 12:51:09,364 Opening > /usr/local/cassandra/0.8.1/data/data/system/LocationInfo-g-25 > INFO 12:51:09,365 Opening > /usr/local/cassandra/0.8.1/data/data/system/LocationInfo-g-26 > INFO 12:51:09,401 Loading schema version > d4d71860-bd04-11e0-0000-242d50cf1fd7 > ERROR 12:51:09,579 Exception encountered during startup. > org.apache.cassandra.db.marshal.MarshalException: UUIDs must be exactly 16 > bytes > at > org.apache.cassandra.db.marshal.TimeUUIDType.getString(TimeUUIDType.java:117) > at > org.apache.cassandra.config.CFMetaData.getDefaultIndexName(CFMetaData.java:971) > at > org.apache.cassandra.config.CFMetaData.inflate(CFMetaData.java:381) > at > org.apache.cassandra.config.KSMetaData.inflate(KSMetaData.java:172) > at > org.apache.cassandra.db.DefsTable.loadFromStorage(DefsTable.java:99) > at > org.apache.cassandra.config.DatabaseDescriptor.loadSchemas(DatabaseDescriptor.java:479) > at > org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:139) > at > org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:315) > at > org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:80) > Exception encountered during startup. > org.apache.cassandra.db.marshal.MarshalException: UUIDs must be exactly 16 > bytes > at > org.apache.cassandra.db.marshal.TimeUUIDType.getString(TimeUUIDType.java:117) > at > org.apache.cassandra.config.CFMetaData.getDefaultIndexName(CFMetaData.java:971) > at > org.apache.cassandra.config.CFMetaData.inflate(CFMetaData.java:381) > at > org.apache.cassandra.config.KSMetaData.inflate(KSMetaData.java:172) > at > org.apache.cassandra.db.DefsTable.loadFromStorage(DefsTable.java:99) > at > org.apache.cassandra.config.DatabaseDescriptor.loadSchemas(DatabaseDescriptor.java:479) > at > org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:139) > at > org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:315) > at > org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:80) > > > I have to say, that my Linux Box crashed with an Out Of Memory Excetpion > (Kernel Panic) before.. Might this be the cause? Otherwise I am really > wondering, why the system is left in such an unstable state, that I event > can't start cassandra anymore. > > 2.) What can I do to recover from this the bst way ? I want to start > cassandra again, without losing data. How to do this / what to do next? > > Thank you very much!! > Jens >
