Aravindan Vijayan created HDDS-2200:
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Summary: Recon does not handle the NULL snapshot from OM DB
cleanly.
Key: HDDS-2200
URL: https://issues.apache.org/jira/browse/HDDS-2200
Project: Hadoop Distributed Data Store
Issue Type: Bug
Components: Ozone Recon
Reporter: Aravindan Vijayan
Assignee: Aravindan Vijayan
{code}
2019-09-27 11:35:19,835 [pool-9-thread-1] ERROR - Null snapshot location
got from OM.
2019-09-27 11:35:19,839 [pool-9-thread-1] INFO - Calling reprocess on
Recon tasks.
2019-09-27 11:35:19,840 [pool-7-thread-1] INFO - Starting a 'reprocess'
run of ContainerKeyMapperTask.
2019-09-27 11:35:20,069 [pool-7-thread-1] INFO - Creating new Recon
Container DB at /tmp/recon/db/recon-container.db_1569609319840
2019-09-27 11:35:20,069 [pool-7-thread-1] INFO - Cleaning up old Recon
Container DB at /tmp/recon/db/recon-container.db_1569609258721.
2019-09-27 11:35:20,144 [pool-9-thread-1] ERROR - Unexpected error :
java.util.concurrent.ExecutionException: java.lang.NullPointerException
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at
org.apache.hadoop.ozone.recon.tasks.ReconTaskControllerImpl.reInitializeTasks(ReconTaskControllerImpl.java:181)
at
org.apache.hadoop.ozone.recon.spi.impl.OzoneManagerServiceProviderImpl.syncDataFromOM(OzoneManagerServiceProviderImpl.java:333)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at
org.apache.hadoop.ozone.recon.tasks.ContainerKeyMapperTask.reprocess(ContainerKeyMapperTask.java:81)
at
org.apache.hadoop.ozone.recon.tasks.ReconTaskControllerImpl.lambda$reInitializeTasks$3(ReconTaskControllerImpl.java:176)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
{code}
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