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Posted to yarn-issues@hadoop.apache.org by "Benjamin Teke (Jira)" <ji...@apache.org> on 2020/09/02 15:38:00 UTC

[jira] [Updated] (YARN-10421) Create YarnDiagnosticsServlet to serve diagnostic queries

     [ https://issues.apache.org/jira/browse/YARN-10421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benjamin Teke updated YARN-10421:
---------------------------------
    Description: 
YarnDiagnosticsServlet should run inside ResourceManager Daemon. The servlet forks a separate process, which executes a shell/Python/etc script. Based on the use-cases listed below the script collects information, bundles it and sends it to UI2. The diagnostic cases are the following:
 # Application hanging: 
 ** Application logs
 ** Find the hanging container and get multiple Jstacks
 ** ResourceManager logs during job lifecycle
 ** NodeManager logs from NodeManager where the hanging containers of the jobs ran
 ** Job configuration from MapReduce HistoryServer, Spark HistoryServer, Tez History URL
 # Application failed: 
 ** Application logs
 ** ResourceManager logs during job lifecycle.
 ** NodeManager logs from NodeManager where the hanging containers of the jobs ran
 ** Job Configuration from MapReduce HistoryServer, Spark HistoryServer, Tez History URL.
 ** Job related metrics like container, attempts.
 # Scheduler related issue:
 ** ResourceManager Scheduler logs with DEBUG enabled for 2 minutes.
 ** Multiple Jstacks of ResourceManager
 ** YARN and Scheduler Configuration
 ** Cluster Scheduler API _/ws/v1/cluster/scheduler_ and Cluster Nodes API _/ws/v1/cluster/nodes response_
 ** Scheduler Activities _/ws/v1/cluster/scheduler/bulkactivities_ response (YARN-10319)
 # ResourceManager / NodeManager daemon fails to start:
 ** ResourceManager and NodeManager out and log file
 ** YARN and Scheduler Configuration

To ease the load on the RM, the servlet should allow only one HTTP request at a time. If a new request comes in while serving another an appropriate response code should be returned, with the message "Diagnostics Collection in Progress”.

  was:
YarnDiagnosticsServlet should run inside ResourceManager Daemon. The servlet forks a separate process, which executes a shell/Python/etc script. Based on the use-cases listed below the script collects information, bundles it and sends it to UI2. The diagnostic cases are the following:
 # Application hanging: 
 ** Application logs
 ** Find the hanging container and get multiple Jstacks
 ** ResourceManager logs during job lifecycle
 ** NodeManager logs from NodeManager where the hanging containers of the jobs ran
 ** Job configuration from MapReduce HistoryServer, Spark HistoryServer, Tez History URL

 # Application failed: 
 ** Application logs
 ** ResourceManager logs during job lifecycle.
 ** NodeManager logs from NodeManager where the hanging containers of the jobs ran
 ** Job Configuration from MapReduce HistoryServer, Spark HistoryServer, Tez History URL.
 ** Job related metrics like container, attempts.

 # Scheduler related issue:
 ** ResourceManager Scheduler logs with DEBUG enabled for 2 minutes.
 ** Multiple Jstacks of ResourceManager
 ** YARN and Scheduler Configuration
 ** Cluster Scheduler API _/ws/v1/cluster/scheduler_ and Cluster Nodes API _/ws/v1/cluster/nodes response_
 ** Scheduler Activities _/ws/v1/cluster/scheduler/bulkactivities_ response (YARN-10319)

 # ResourceManager / NodeManager daemon fails to start:
 ** ResourceManager and NodeManager out and log file
 ** YARN and Scheduler Configuration

To ease the load on the RM, the servlet should allow only one HTTP request at a time. If a new request comes in while serving another an appropriate response code should be returned, with the message "Diagnostics Collection in Progress”.


> Create YarnDiagnosticsServlet to serve diagnostic queries 
> ----------------------------------------------------------
>
>                 Key: YARN-10421
>                 URL: https://issues.apache.org/jira/browse/YARN-10421
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Benjamin Teke
>            Assignee: Benjamin Teke
>            Priority: Major
>
> YarnDiagnosticsServlet should run inside ResourceManager Daemon. The servlet forks a separate process, which executes a shell/Python/etc script. Based on the use-cases listed below the script collects information, bundles it and sends it to UI2. The diagnostic cases are the following:
>  # Application hanging: 
>  ** Application logs
>  ** Find the hanging container and get multiple Jstacks
>  ** ResourceManager logs during job lifecycle
>  ** NodeManager logs from NodeManager where the hanging containers of the jobs ran
>  ** Job configuration from MapReduce HistoryServer, Spark HistoryServer, Tez History URL
>  # Application failed: 
>  ** Application logs
>  ** ResourceManager logs during job lifecycle.
>  ** NodeManager logs from NodeManager where the hanging containers of the jobs ran
>  ** Job Configuration from MapReduce HistoryServer, Spark HistoryServer, Tez History URL.
>  ** Job related metrics like container, attempts.
>  # Scheduler related issue:
>  ** ResourceManager Scheduler logs with DEBUG enabled for 2 minutes.
>  ** Multiple Jstacks of ResourceManager
>  ** YARN and Scheduler Configuration
>  ** Cluster Scheduler API _/ws/v1/cluster/scheduler_ and Cluster Nodes API _/ws/v1/cluster/nodes response_
>  ** Scheduler Activities _/ws/v1/cluster/scheduler/bulkactivities_ response (YARN-10319)
>  # ResourceManager / NodeManager daemon fails to start:
>  ** ResourceManager and NodeManager out and log file
>  ** YARN and Scheduler Configuration
> To ease the load on the RM, the servlet should allow only one HTTP request at a time. If a new request comes in while serving another an appropriate response code should be returned, with the message "Diagnostics Collection in Progress”.



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