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From Bhaskar Singhal <bhaskarsing...@yahoo.com>
Subject Re: TTransportException (java.net.SocketException: Broken pipe)
Date Thu, 17 Jul 2014 08:42:17 GMT
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 <belliottsmith@datastax.com>
wrote:
 


Are you still seeing the same exceptions about too many open files?





On Thu, Jul 17, 2014 at 6:28 AM, Bhaskar Singhal <bhaskarsinghal@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 /proc/17663/limits
>Limit                     Soft Limit           Hard Limit          
Units
>Max cpu time              unlimited            unlimited           
seconds
>Max file size             unlimited            unlimited           
bytes
>Max data size            
 unlimited            unlimited            bytes
>Max stack size            8388608              unlimited           
bytes
>Max core file size        0                    unlimited           
bytes
>Max resident set          unlimited            unlimited           
bytes
>Max processes             256502               256502              
processes
>Max open files            4096                 4096                
files
>Max locked memory         65536                65536               
bytes
>Max address
 space         unlimited            unlimited            bytes
>Max file locks            unlimited            unlimited           
locks
>Max pending signals       256502               256502              
signals
>Max msgqueue size         819200              
 819200               bytes
>Max nice priority         0                    0
>Max realtime priority     0                    0
>Max realtime timeout      unlimited            unlimited           
us
>
>
>
>
>Regards,
>Bhaskar
>
>
>
>
>On Thursday, 10 July 2014 12:09 AM, Robert Coli <rcoli@eventbrite.com> wrote:
> 
>
>
>On Tue, Jul 8, 2014 at 10:17 AM, Bhaskar Singhal <bhaskarsinghal@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
> 
>
>
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