Hi All,
I have loaded data into cassandra using batch processing the
response times for reads are in the range of 0.8 ms but I am using SSDs. so
I expect the read times to be even faster.
Every time I run compaction the latency numbers reduce to 0.3 to 0.4ms , is
there a way I can run
Greetings all,
I removetoken'd a node a few weeks back and completely shut down the
node which owned that token. Every few days, it shows back up in the
ring as "Down" and I have to removetoken it again. Thinking it was an
issue with gossip, I shut the ring completely down, deleted all of the
hint
My Xmx and Xms are both 7.5GB. However, I never see the heap usage
reach past 5.5. Think it is still a good idea to increase the heap?
Thanks,
Jason
On Apr 2, 2:45 am, Peter Schuller wrote:
> > Previously, mark-and-sweep would run around 5.5GB, and would cut heap
> > usage to 4GB. Now, it still
Hi,
The open file limit is 1024
Sstable count is somewhere around 20 or so thread count is in the same order of
magnitude I guess
But lsof shows that deleted sstables still have open file handles. This seems
to be the issue as this number keeps growing.
Any ideas?
Roland.
-Ursprüngliche N
> Previously, mark-and-sweep would run around 5.5GB, and would cut heap
> usage to 4GB. Now, it still runs at 5.5GB, but it shrinks all the way
> down to 2GB used. This behavior was consistent in every machine I
> increased read-concurrent on.
So each full CMS cycles brings it down to 4 on a maxim
> Java also enjoys using all the memory your allocate and the Garbage
> collection does not give it back unless it needs to.
This only explains why it never shrinks in top, not increased heap
usage (which is presumably the memtables/key/row caches already
mentioned).
--
/ Peter Schuller
