Re: Problems with large partitions and compaction

2017-02-15 Thread Dan Kinder
What Cassandra version? CMS or G1? What are your timeouts set to? "GC activity" - Even if there isn't a lot of activity per se maybe there is a single long pause happening. I have seen large partitions cause lots of allocation fast. Looking at SSTable Levels in nodetool cfstats can help, look at

Problems with large partitions and compaction

2017-02-14 Thread John Sanda
I have a table that uses LCS and has wound up with partitions upwards of 700 MB. I am seeing lots of the large partition warnings. Client requests are subsequently failing. The driver is not reporting timeout exception, just NoHostAvailableExceptions (in the logs I have reviewed so far). I know tha