The name of the property is dt.attr. CONTAINER_JVM_OPTIONS. You don't
need to replace <LOG_DIR> with the actual path as it is not known till
an application and a containers are allocated by Yarn (Apex will replace
<LOG_DIR> with the container log directory). You may also set the
attribute at the launch time:
-Ddt.attr.CONTAINER_JVM_OPTIONS="-Xloggc:<LOG_DIR>/gc.log -verbose:gc
-XX:+PrintGCDateStamps" or using DT RTS console.
Thank you,
Vlad
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On 2/21/17 00:44, Ambarish Pande wrote:
I cant find the gc.log file in container logs folder. Do i have to
replace the LOG_DIR with a path?
On Tue, Feb 21, 2017 at 12:21 PM, Tushar Gosavi
<tus...@datatorrent.com <mailto:tus...@datatorrent.com>> wrote:
Hi Ambarish,
you could add following property in your applications
properties.xml file.
<property>
<name>dt.application.*.attr.containerJvmOpts</name>
<value>-Xloggc:<LOG_DIR>/gc.log -verbose:gc
-XX:+PrintGCDateStamps</value>
</property>
when this property is used, you will see gc.log file in container
directory.
- Tushar.
On Tue, Feb 21, 2017 at 12:06 PM, Ambarish Pande
<ambarish.pande2...@gmail.com
<mailto:ambarish.pande2...@gmail.com>> wrote:
> Hello,
>
> I tried enabling gclogs in hadoop configurations. Do I need to
enable it in
> Datatorrent RTS somewhere or in my app?. If so, how should I do it?
>
> Thank You
>
> On Fri, Feb 17, 2017 at 1:20 PM, Ashwin Chandra Putta
> <ashwinchand...@gmail.com <mailto:ashwinchand...@gmail.com>> wrote:
>>
>> It is probably not able to keep up with the throughput and
might need more
>> partitions. Check the CPU and memory utilization of its
container. If memory
>> allocated to container is too low, it might be hitting GC too
often. You can
>> enable GC logging and check GC logs.
>>
>> Regards,
>> Ashwin.
>>
>>
>> On Feb 16, 2017 11:12 PM, "Ambarish Pande"
<ambarish.pande2...@gmail.com <mailto:ambarish.pande2...@gmail.com>>
>> wrote:
>>
>> Hello,
>>
>> I wanted to know why my operator latency is increasing. Which
logs should
>> I check to get any idea about that. I have checked the
container dt.log ,
>> stderr and stdout, but I cannot find anything there.
>>
>> Thank You
>>
>>
>
