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From Roshan Dawrani <roshandawr...@gmail.com>
Subject Re: Error in upgrading cassandra to 0.8.5
Date Tue, 13 Sep 2011 13:43:14 GMT
Hi.

Thanks for replying back. Just a quick cross-confirmation, if you don't
mind:

So, I can do the following without fearing any loss of data, etc?

* "nodetool drain" and bring down the 0.7.0 node (it's a one node setup that
I am upgrading)
* remove all files from saved_caches directory (both system*-KeyCache as
well as application-specific*-KeyCache files)
* bring up the new 0.8.5 node (pointing to same "data" and "commitlog"
directories)

The *KeyCache files can be removed safely in between, right?

Cheers.

On Tue, Sep 13, 2011 at 7:03 PM, Jonathan Ellis <jbellis@gmail.com> wrote:

> Just remove the row cache files.
>
> On Tue, Sep 13, 2011 at 8:23 AM, Roshan Dawrani <roshandawrani@gmail.com>
> wrote:
> > Hi,
> > I am in the process of upgrading Cassandra to the recently released
> v0.8.5
> > and facing an issue.
> > We had two Cassandra environments - one having 0.7.0 and another 0.7.2.
> The
> > upgrade on 0.7.2 has happened smoothly, but on the environment having
> 0.7.0,
> > when I make the switch, the DB fails to come up with the error below.
> > Can someone help please?
> >
> -------------------------------------------------------------------------------------------------------------
> >  INFO 13:03:46,025 JNA not found. Native methods will be disabled.
> >  INFO 13:03:46,034 Loading settings from
> > file:/apache-cassandra-0.8.5/conf/cassandra.yaml
> >  INFO 13:03:46,195 DiskAccessMode 'auto' determined to be mmap,
> > indexAccessMode is mmap
> >  ...
> >  INFO 13:03:46,307 Removing compacted SSTable files (see
> > http://wiki.apache.org/cassandra/MemtableSSTable)
> >  INFO 13:03:46,379 reading saved cache
> > /cassandra/saved_caches/system-IndexInfo-KeyCache
> > ERROR 13:03:46,380 Exception encountered during startup.
> > java.lang.NegativeArraySizeException
> >         at
> >
> org.apache.cassandra.cache.AutoSavingCache.readSaved(AutoSavingCache.java:130)
> >         at
> >
> org.apache.cassandra.db.ColumnFamilyStore.<init>(ColumnFamilyStore.java:273)
> >         at
> >
> org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:465)
> >         at
> >
> org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:435)
> >         at org.apache.cassandra.db.Table.initCf(Table.java:369)
> >         at org.apache.cassandra.db.Table.<init>(Table.java:306)
> >         at org.apache.cassandra.db.Table.open(Table.java:111)
> >         at
> > org.apache.cassandra.db.SystemTable.checkHealth(SystemTable.java:217)
> >         at
> >
> org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:154)
> >         at
> >
> org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:341)
> >         at
> > org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:97)
> >
> -------------------------------------------------------------------------------------------------------------
> > --
> > Roshan
> > Blog: http://roshandawrani.wordpress.com/
> > Twitter: @roshandawrani
> > Skype: roshandawrani
> >
> >
>
>
>
> --
> Jonathan Ellis
> Project Chair, Apache Cassandra
> co-founder of DataStax, the source for professional Cassandra support
> http://www.datastax.com
>



-- 
Roshan
Blog: http://roshandawrani.wordpress.com/
Twitter: @roshandawrani <http://twitter.com/roshandawrani>
Skype: roshandawrani

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