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From Sylvain Lebresne <sylv...@datastax.com>
Subject Re: Exception encountered during startup - org.apache.cassandra.db.marshal.MarshalException: UUIDs must be exactly 16 bytes
Date Wed, 03 Aug 2011 13:52:22 GMT
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.lists@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
>

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