Re: Problem with very many small SSTables

2014-12-18 Thread Robert Coli
On Mon, Dec 15, 2014 at 12:41 AM, Mathijs Vogelzang math...@apptornado.com wrote: Would it be possible to trigger a manual partial compaction, to first compact 4x 256 tables? Could this be added to nodetool if it doesn't exist already? JMX call forceUserDefinedCompaction. =Rob

Problem with very many small SSTables

2014-12-15 Thread Mathijs Vogelzang
Hi, We have a 6-node cassandra cluster that got into an unstable state because a few servers were very low on Java heap space for a while. This resulted in them flushing an SSTable to disk for almost every write, such that some column families ended up with 1000+ SSTables, most of which contain