Yiqun Lin created HDDS-3070:
-------------------------------
Summary: NPE when stop recon server while recon server was not
really started
Key: HDDS-3070
URL: https://issues.apache.org/jira/browse/HDDS-3070
Project: Hadoop Distributed Data Store
Issue Type: Bug
Components: Ozone Recon
Affects Versions: 0.4.1
Reporter: Yiqun Lin
Assignee: Yiqun Lin
I met a NPE error when I did test for Ozone. Seems the root cause is that recon
server was not really started however we still try to stop it.
{noformat}
2020-02-25 20:22:44,296 [Thread-0] ERROR ozone.MiniOzoneClusterImpl
(MiniOzoneClusterImpl.java:build(525)) - Exception while shutting down the
Recon.
java.lang.NullPointerException
at
org.apache.hadoop.ozone.recon.tasks.ReconTaskControllerImpl.stop(ReconTaskControllerImpl.java:237)
at
org.apache.hadoop.ozone.recon.spi.impl.OzoneManagerServiceProviderImpl.stop(OzoneManagerServiceProviderImpl.java:229)
at org.apache.hadoop.ozone.recon.ReconServer.stop(ReconServer.java:132)
at
org.apache.hadoop.ozone.MiniOzoneClusterImpl.stopRecon(MiniOzoneClusterImpl.java:470)
at
org.apache.hadoop.ozone.MiniOzoneClusterImpl.access$200(MiniOzoneClusterImpl.java:87)
at
org.apache.hadoop.ozone.MiniOzoneClusterImpl$Builder.build(MiniOzoneClusterImpl.java:523)
at
org.apache.hadoop.fs.ozone.TestOzoneFileSystem.testFileSystem(TestOzoneFileSystem.java:72)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
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