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https://issues.apache.org/jira/browse/HDFS-12908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16283723#comment-16283723
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Anu Engineer commented on HDFS-12908:
-------------------------------------
[~msingh] Thanks for filing this, could you please share how to reproduce this?
> Ozone: write chunk call fails because of Metrics registry exception
> -------------------------------------------------------------------
>
> Key: HDFS-12908
> URL: https://issues.apache.org/jira/browse/HDFS-12908
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Affects Versions: HDFS-7240
> Reporter: Mukul Kumar Singh
> Assignee: Mukul Kumar Singh
> Fix For: HDFS-7240
>
>
> write chunk call fail because of Metric registration exception.
> {code}
> 2017-12-08 04:02:19,894 WARN org.apache.hadoop.metrics2.util.MBeans: Error
> creating MBean object name:
> Hadoop:service=Ozone,name=RocksDbStore,dbName=container.db
> org.apache.hadoop.metrics2.MetricsException:
> org.apache.hadoop.metrics2.MetricsException:
> Hadoop:service=Ozone,name=RocksDbStore,dbName=container.db already exists!
> at
> org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newObjectName(DefaultMetricsSystem.java:135)
> at
> org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newMBeanName(DefaultMetricsSystem.java:110)
> at
> org.apache.hadoop.metrics2.util.MBeans.getMBeanName(MBeans.java:155)
> at org.apache.hadoop.metrics2.util.MBeans.register(MBeans.java:87)
> at org.apache.hadoop.utils.RocksDBStore.<init>(RocksDBStore.java:77)
> at
> org.apache.hadoop.utils.MetadataStoreBuilder.build(MetadataStoreBuilder.java:115)
> at
> org.apache.hadoop.ozone.container.common.utils.ContainerCache.getDB(ContainerCache.java:138)
> at
> org.apache.hadoop.ozone.container.common.helpers.KeyUtils.getDB(KeyUtils.java:65)
> at
> org.apache.hadoop.ozone.container.common.impl.ContainerManagerImpl.readContainerInfo(ContainerManagerImpl.java:261)
> at
> org.apache.hadoop.ozone.container.common.impl.ContainerManagerImpl.createContainer(ContainerManagerImpl.java:330)
> at
> org.apache.hadoop.ozone.container.common.impl.Dispatcher.handleCreateContainer(Dispatcher.java:399)
> at
> org.apache.hadoop.ozone.container.common.impl.Dispatcher.containerProcessHandler(Dispatcher.java:158)
> at
> org.apache.hadoop.ozone.container.common.impl.Dispatcher.dispatch(Dispatcher.java:105)
> at
> org.apache.hadoop.ozone.container.common.transport.server.XceiverServerHandler.channelRead0(XceiverServerHandler.java:61)
> at
> org.apache.hadoop.ozone.container.common.transport.server.XceiverServerHandler.channelRead0(XceiverServerHandler.java:32)
> at
> io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
> at
> io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
> at
> io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
> at
> io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
> at
> io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:312)
> at
> io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:286)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
> at
> io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
> at
> io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1302)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
> at
> io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)
> at
> io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
> at
> io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:646)
> at
> io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:581)
> at
> io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:498)
> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:460)
> at
> io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
> at
> io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:138)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: org.apache.hadoop.metrics2.MetricsException:
> Hadoop:service=Ozone,name=RocksDbStore,dbName=container.db already exists!
> at
> org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newObjectName(DefaultMetricsSystem.java:131)
> ... 39 more
> {code}
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