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From Lan Jiang <>
Subject Re: How to access lost executor log file
Date Thu, 01 Oct 2015 18:46:37 GMT

Thanks for your reply.

First of all, after sending email to the mailing list,  I use yarn logs
applicationId <application-id> to retrieve the aggregated log
successfully.  I found the exceptions I am looking for.

Now as to your suggestion, when I go to the YARN RM UI, I can only see the
"Tracking URL" in the application overview section. When I click it, it
brings me to the spark history server UI, where I cannot find the lost
exectuors. The only logs link I can find one the YARN RM site is the
ApplicationMaster log, which is not what I need. Did I miss something?


On Thu, Oct 1, 2015 at 1:30 PM, Ted Yu <> wrote:

> Can you go to YARN RM UI to find all the attempts for this Spark Job ?
> The two lost executors should be found there.
> On Thu, Oct 1, 2015 at 10:30 AM, Lan Jiang <> wrote:
>> Hi, there
>> When running a Spark job on YARN, 2 executors somehow got lost during the
>> execution. The message on the history server GUI is “CANNOT find address”.
>> Two extra executors were launched by YARN and eventually finished the job.
>> Usually I go to the “Executors” tab on the UI to check the executor
>> stdout/stderr for troubleshoot. Now if I go to the “Executors” tab,  I do
>> not see the 2 executors that were lost. I can only see the rest executors
>> and the 2 new executors. Thus I cannot check the stdout/stderr of the lost
>> executors. How can I access the log files of these lost executors to find
>> out why they were lost?
>> Thanks
>> Lan

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