Re: GCInspector works every 10 seconds!

2012-06-19 Thread Rob Coli
On Mon, Jun 18, 2012 at 12:07 AM, Jason Tang wrote: > After I enable key cache and row cache, the problem gone, I guess it because > we have lots of data in SSTable, and it takes more time, memory and cpu to > search the data. The Key Cache is usually a win if added like this. The Row cache is le

Re: GCInspector works every 10 seconds!

2012-06-18 Thread Jason Tang
Hi After I enable key cache and row cache, the problem gone, I guess it because we have lots of data in SSTable, and it takes more time, memory and cpu to search the data. BRs //Tang Weiqiang 2012/6/18 aaron morton > It is also strange that although no data in Cassandra can fulfill the > que

Re: GCInspector works every 10 seconds!

2012-06-17 Thread aaron morton
> It is also strange that although no data in Cassandra can fulfill the query > conditions, but it takes more time if we have more data in Cassandra. These log messages: > DEBUG [ReadStage:89] 2012-06-17 20:17:26,958 SliceQueryFilter.java (line 123) > collecting 0 of 5000: > 7fff0

Re: GCInspector works every 10 seconds!

2012-06-17 Thread Jason Tang
Hi After I change log level to DEBUG, I found some log. Although we don't have traffic to Cassandra, but we have scheduled the task to perform the sliceQuery. We use time-stamp as the index, we will perform the query by every second to check if we have tasks to do. After 24 hours, we h