Please provide some additional info -

1. Can you login to the AM container node and look under the container log
dir and see if the logs files are there?

2. If you don¹t see the log files in step 1 above, can you run the below
yarn cmd-line? Do you see the logs?
yarn logs -applicationId <app_id>


3. If you don¹t see any logs in step 2 above, then if possible can you
stop the app and then run the cmd in step 2 again? Do you see the logs?

4. What are the following properties set to in your cluster?
yarn.log-aggregation-enable

yarn.log-aggregation.retain-seconds
yarn.nodemanager.log-aggregation.roll-monitoring-interval-seconds

yarn.nodemanager.log-aggregation.debug-enabled
yarn.nodemanager.log-aggregation.num-log-files-per-app

-Gour

On 3/9/17, 2:01 PM, "David.Serafini" <david.seraf...@target.com> wrote:

>hortonworks 2.5.3.   $(hadoop version) says:
> 
>Hadoop 2.7.3.2.5.3.0-37
>Subversion g...@github.com:hortonworks/hadoop.git -r
>9828acfdec41a121f0121f556b09e2d112259e92
>Compiled by jenkins on 2016-11-29T18:06Z
>Compiled with protoc 2.5.0
>  
>
>On 3/9/17, 1:31 PM, <gs...@hortonworks.com> wrote:
>
>    Which version of hadoop are you using?
>    
>    -Gour
>    
>    > On Mar 9, 2017, at 12:46 PM, David.Serafini
><david.seraf...@target.com> wrote:
>    > 
>    > I'm testing Slider 0.91.
>    > The log files for the AM container disappear after a day or so
>(according to the YARN UI), even though the application is still running
>the the AM container is not restarted.
>    > 
>    > Is this a YARN problem or a Slider problem?
>    > How do I fix it?
>    > 
>    > thanks,
>    > <dbs>
>    > 
>    
>    
>

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