[YARN-9968] Public Localizer is exiting in NodeManager due to NullPointerException

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1.0
• Fix Version/s: 3.3.0, 3.2.2, 3.1.4
• Component/s: nodemanager
• Hadoop Flags: Reviewed
• Assignee: Tarun Parimi
• Reporter: Tarun Parimi
• Created: 12/Nov/19 13:43
• Updated: 24/Mar/22 11:53
• Resolved: 22/Nov/19 12:01

Description

The Public Localizer is encountering a NullPointerException and exiting.

ERROR localizer.ResourceLocalizationService (ResourceLocalizationService.java:run(995)) - Error: Shutting down
java.lang.NullPointerException
        at org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService$PublicLocalizer.run(ResourceLocalizationService.java:981)

INFO  localizer.ResourceLocalizationService (ResourceLocalizationService.java:run(997)) - Public cache exiting

The NodeManager still keeps on running. Subsequent localization events for containers keep encountering the below error, resulting in failed Localization of all new containers.

ERROR localizer.ResourceLocalizationService (ResourceLocalizationService.java:addResource(920)) - Failed to submit rsrc { { hdfs://namespace/raw/user/.staging/job/conf.xml 1572071824603, FILE, null },pending,[(container_e30_1571858463080_48304_01_000134)],12513553420029113,FAILED} for download. Either queue is full or threadpool is shutdown.
java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.ExecutorCompletionService$QueueingFuture@55c7fa21 rejected from org.apache.hadoop.util.concurrent.HadoopThreadPoolExecutor@46067edd[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 382286]
        at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2047)
        at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:823)
        at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1369)
        at java.util.concurrent.ExecutorCompletionService.submit(ExecutorCompletionService.java:181)
        at org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService$PublicLocalizer.addResource(ResourceLocalizationService.java:899)

When this happens, the NodeManager becomes usable only after a restart.

Issue Links

• is broken by: YARN-8403 Nodemanager logs failed to download file with INFO level