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From jens müller <jens.mueller.li...@googlemail.com>
Subject Exception encountered during startup - org.apache.cassandra.db.marshal.MarshalException: UUIDs must be exactly 16 bytes
Date Wed, 03 Aug 2011 10:57:21 GMT
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

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