and which version of Spark/Spark Streaming are you using?

are you explicitly setting the spark.streaming.concurrentJobs to something
larger than the default of 1?

if so, please try setting that back to 1 and see if the problem still
exists.

this is a dangerous parameter to modify from the default - which is why
it's not well-documented.


On Wed, Dec 23, 2015 at 8:23 AM, Vijay Gharge <vijay.gha...@gmail.com>
wrote:

> Few indicators -
>
> 1) during execution time - check total number of open files using lsof
> command. Need root permissions. If it is cluster not sure much !
> 2) which exact line in the code is triggering this error ? Can you paste
> that snippet ?
>
>
> On Wednesday 23 December 2015, Priya Ch <learnings.chitt...@gmail.com>
> wrote:
>
>> ulimit -n 65000
>>
>> fs.file-max = 65000 ( in etc/sysctl.conf file)
>>
>> Thanks,
>> Padma Ch
>>
>> On Tue, Dec 22, 2015 at 6:47 PM, Yash Sharma <yash...@gmail.com> wrote:
>>
>>> Could you share the ulimit for your setup please ?
>>>
>>> - Thanks, via mobile,  excuse brevity.
>>> On Dec 22, 2015 6:39 PM, "Priya Ch" <learnings.chitt...@gmail.com>
>>> wrote:
>>>
>>>> Jakob,
>>>>
>>>>    Increased the settings like fs.file-max in /etc/sysctl.conf and
>>>> also increased user limit in /etc/security/limits.conf. But still see
>>>> the same issue.
>>>>
>>>> On Fri, Dec 18, 2015 at 12:54 AM, Jakob Odersky <joder...@gmail.com>
>>>> wrote:
>>>>
>>>>> It might be a good idea to see how many files are open and try
>>>>> increasing the open file limit (this is done on an os level). In some
>>>>> application use-cases it is actually a legitimate need.
>>>>>
>>>>> If that doesn't help, make sure you close any unused files and streams
>>>>> in your code. It will also be easier to help diagnose the issue if you 
>>>>> send
>>>>> an error-reproducing snippet.
>>>>>
>>>>
>>>>
>>
>
> --
> Regards,
> Vijay Gharge
>
>
>
>


-- 

*Chris Fregly*
Principal Data Solutions Engineer
IBM Spark Technology Center, San Francisco, CA
http://spark.tc | http://advancedspark.com

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