that looks like a log replay bug we had in beta one but is fixed in
current trunk.

On 8/21/09, Anthony Molinaro <[email protected]> wrote:
> Hi,
>
>   I'm trying to make the transition from 0.3.0 to 0.4.0.  I recreated
> all my packages, rejiggered my load scripts to load up data, and loaded
> up the data.  I then needed to modify the java arguments to include a
> -Djava.rmi.server.hostname parameter so I could attach a jconsole to
> it.  So I restarted and got this exception
>
> java.lang.RuntimeException: Unable to load comparator class
> 'org.apache.cassandra.db.marshal.UT'.  probably this means you have obsolete
> sstables lying around
>         at
> org.apache.cassandra.db.ColumnFamilySerializer.readComparator(ColumnFamilySerializer.java:108)
>         at
> org.apache.cassandra.db.ColumnFamilySerializer.deserialize(ColumnFamilySerializer.java:83)
>         at org.apache.cassandra.db.RowSerializer.deserialize(Row.java:225)
>         at org.apache.cassandra.db.CommitLog.recover(CommitLog.java:326)
>         at
> org.apache.cassandra.db.RecoveryManager.doRecovery(RecoveryManager.java:58)
>         at
> org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:90)
>         at
> org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:166)
> Caused by: java.lang.ClassNotFoundException:
> org/apache/cassandra/db/marshal/UT
>         at java.lang.Class.forName0(Native Method)
>         at java.lang.Class.forName(Class.java:169)
>         at
> org.apache.cassandra.db.ColumnFamilySerializer.readComparator(ColumnFamilySerializer.java:104)
>         ... 6 more
>
> The odd thing is the name of that comparator class.  Above it seems to
> be clipped and viewing the log in vim I see several '^@' characters
> after the UT and before the ' which I believe are nulls.  I'd say
> it was memory corruption if this was C or C++, not sure what to say
> about this in java.
>
> I'm using trunk, any ideas?
>
> -Anthony
>
> --
> ------------------------------------------------------------------------
> Anthony Molinaro                           <[email protected]>
>

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