[jira] [Commented] (TEZ-4344) Collect jstack periodically from all containers

["Ayush Saxena (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TEZ-4344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17739464#comment-17739464 ] 

Ayush Saxena commented on TEZ-4344:
-----------------------------------

Have created a PR with ThreadDump logic for TezChild. Have added a test, captured some screenshots from that and attached in the PR.

Open for feedback on further improvements/changes/additions

> Collect jstack periodically from all containers
> -----------------------------------------------
>
>                 Key: TEZ-4344
>                 URL: https://issues.apache.org/jira/browse/TEZ-4344
>             Project: Apache Tez
>          Issue Type: Sub-task
>            Reporter: László Bodor
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> 1. set a property of interval of seconds (default: 0 ==> off)
> 2. attach jstack files to app logs (this is easy maybe, putting jstack log files next to app syslog files can make it included by yarn)
> jstack should have a name like containername_dagname_timestamp
> +option if containers should create jstacks even when idle (don't have a task assigned to them), by default they're not supposed to do so
> I don't want to have a jstack dependency for this (configure path, etc.), so an internal thread dump facility is preferred with zero configuration.
> Also this doesn't require new endpoints of AM and task containers (like TEZ-4345), this can be implemented quite easily.



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