The issue you should look at is CASSANDRA-4206. This is apparently fixed on 2.0 so upgrading is one option. If you are not ready to upgrade to 2.0 then you can try increasing in_memory_compaction.
We were hitting this exception on one of our nodes and increasing in_memory_compaction did fix it. -psanford On Mon, Feb 17, 2014 at 4:53 AM, Oleg Dulin <oleg.du...@gmail.com> wrote: > Bumping this up -- anything ? anyone ? > > > On 2014-02-13 16:01:50 +0000, Oleg Dulin said: > > I am getting these exceptions on one of the nodes, quite often, during >> compactions: >> >> "java.lang.AssertionError: originally calculated column size of 84562492 >> but now it is 84562600" >> >> Usually this is on the same column family. >> >> I believe this is preventing compactions from completing, and >> subsequently causing other performance issues for me. >> >> Is there a way to fix that ? Would nodetool scrub take care of this ? >> > > > -- > Regards, > Oleg Dulin > http://www.olegdulin.com > > >
