Nanda kumar created HDFS-12899:
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Summary: Ozone: SCM: BlockManagerImpl close is called twice during
StorageContainerManager#stop
Key: HDFS-12899
URL: https://issues.apache.org/jira/browse/HDFS-12899
Project: Hadoop HDFS
Issue Type: Sub-task
Components: ozone
Reporter: Nanda kumar
Assignee: Nanda kumar
As part of {{StorageContainerManager#stop}}, we are calling
{{scmBlockManager#stop}} which will internally do {{BlockManagerImpl#close}}
and again explicitly we are calling {{scmBlockManager#close}} using
{{IOUtils.cleanupWithLogger(LOG, scmBlockManager)}}. This causes
{{RocksDBStore#close}} to be called twice which inturn does
{{MBeans#unregister}} twice, resulting in the following exception trace (WARN)
during the second call
{noformat}
2017-12-06 22:30:06,316 [main] WARN util.MBeans (MBeans.java:unregister(137))
- Error unregistering Hadoop:service=Ozone,name=RocksDbStore,dbName=block.db
javax.management.InstanceNotFoundException:
Hadoop:service=Ozone,name=RocksDbStore,dbName=block.db
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(DefaultMBeanServerInterceptor.java:1095)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.exclusiveUnregisterMBean(DefaultMBeanServerInterceptor.java:427)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.unregisterMBean(DefaultMBeanServerInterceptor.java:415)
at
com.sun.jmx.mbeanserver.JmxMBeanServer.unregisterMBean(JmxMBeanServer.java:546)
at org.apache.hadoop.metrics2.util.MBeans.unregister(MBeans.java:135)
at org.apache.hadoop.utils.RocksDBStore.close(RocksDBStore.java:368)
at
org.apache.hadoop.ozone.scm.block.BlockManagerImpl.close(BlockManagerImpl.java:506)
at org.apache.hadoop.io.IOUtils.cleanupWithLogger(IOUtils.java:278)
at
org.apache.hadoop.ozone.scm.StorageContainerManager.stop(StorageContainerManager.java:900)
--------stacktrace truncated----------
2017-12-06 22:30:06,317 [main] WARN util.MBeans (MBeans.java:unregister(137))
- Error unregistering
Hadoop:service=Ozone,name=RocksDbStore,dbName=deletedBlock.db
javax.management.InstanceNotFoundException:
Hadoop:service=Ozone,name=RocksDbStore,dbName=deletedBlock.db
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(DefaultMBeanServerInterceptor.java:1095)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.exclusiveUnregisterMBean(DefaultMBeanServerInterceptor.java:427)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.unregisterMBean(DefaultMBeanServerInterceptor.java:415)
at
com.sun.jmx.mbeanserver.JmxMBeanServer.unregisterMBean(JmxMBeanServer.java:546)
at org.apache.hadoop.metrics2.util.MBeans.unregister(MBeans.java:135)
at org.apache.hadoop.utils.RocksDBStore.close(RocksDBStore.java:368)
at
org.apache.hadoop.ozone.scm.block.DeletedBlockLogImpl.close(DeletedBlockLogImpl.java:326)
at
org.apache.hadoop.ozone.scm.block.BlockManagerImpl.close(BlockManagerImpl.java:509)
at org.apache.hadoop.io.IOUtils.cleanupWithLogger(IOUtils.java:278)
at
org.apache.hadoop.ozone.scm.StorageContainerManager.stop(StorageContainerManager.java:900)
--------stacktrace truncated----------
{noformat}
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