I have not seen the issue after changing the commit log segment size to 1024MB.
tpstats output:
Pool Name Active Pending Completed Blocked All
time blocked
ReadStage 0 0 0 0
0
On Mon, Jul 21, 2014 at 8:07 AM, Bhaskar Singhal bhaskarsing...@yahoo.com
wrote:
I have not seen the issue after changing the commit log segment size to
1024MB.
Yes... your insanely over-huge commitlog will be contained in fewer files
if you increase the size of segments that will not
On Mon, Jul 7, 2014 at 9:30 PM, Bhaskar Singhal bhaskarsing...@yahoo.com
wrote:
I am using Cassandra 2.0.7 (with default settings and 16GB heap on quad
core ubuntu server with 32gb ram)
16GB of heap will lead to significant GC pauses, and probably will not
improve total performance versus 8gb
Are you still seeing the same exceptions about too many open files?
On Thu, Jul 17, 2014 at 6:28 AM, Bhaskar Singhal bhaskarsing...@yahoo.com
wrote:
Even after changing ulimits and moving to the recommended production
settings, we are still seeing the same issue.
root@lnx148-76:~# cat
Yes, I am.
lsof lists around 9000 open file handles.. and there were around 3000 commitlog
segments.
On Thursday, 17 July 2014 1:24 PM, Benedict Elliott Smith
belliottsm...@datastax.com wrote:
Are you still seeing the same exceptions about too many open files?
On Thu, Jul 17, 2014 at
Even after changing ulimits and moving to the recommended production settings,
we are still seeing the same issue.
root@lnx148-76:~# cat /proc/17663/limits
Limit Soft Limit Hard Limit Units
Max cpu time unlimited unlimited
We have these precise settings but are still seeing the broken pipe exception
in our gc logs. Any clues?
Sent from my iPhone
On Jul 8, 2014, at 1:17 PM, Bhaskar Singhal bhaskarsing...@yahoo.com wrote:
Thanks Mark. Yes the 1024 is the limit. I haven't changed it as per the
recommended
On Tue, Jul 8, 2014 at 10:17 AM, Bhaskar Singhal bhaskarsing...@yahoo.com
wrote:
But I am wondering why does Cassandra need to keep 3000+ commit log
segment files open?
Because you are writing faster than you can flush to disk.
=Rob
Hi Bhaskar,
Can you check your limits using 'ulimit -a'? The default is 1024, which
needs to be increased if you have not done so already.
Here you will find a list of recommended production settings:
Thanks Mark. Yes the 1024 is the limit. I haven't changed it as per the
recommended production settings.
But I am wondering why does Cassandra need to keep 3000+ commit log segment
files open?
Regards,
Bhaskar
On Tuesday, 8 July 2014 1:50 PM, Mark Reddy mark.re...@boxever.com wrote:
Hi
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