[
https://issues.apache.org/jira/browse/LENS-570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14553709#comment-14553709
]
Amareshwari Sriramadasu commented on LENS-570:
----------------------------------------------
Here is the log snippet :
{noformat}
21 May 2015 05:51:12,221 [main] INFO
org.apache.lens.server.query.QueryExecutionServiceImpl - Query execution
service initialized
21 May 2015 05:51:12,221 [main] INFO org.apache.hive.service.AbstractService
- Service:metastore is inited.
21 May 2015 05:51:12,221 [main] INFO org.apache.hive.service.AbstractService
- Service:scheduler is inited.
21 May 2015 05:51:12,222 [main] INFO org.apache.hive.service.AbstractService
- Service:quota is inited.
21 May 2015 05:51:12,222 [main] INFO org.apache.hive.service.AbstractService
- Service:lens_services is inited.
21 May 2015 05:51:12,223 [main] INFO org.apache.lens.server.LensServices -
STATE_PERSIST_OUT_STREAM_BUFF_SIZE IN BYTES:1048576
21 May 2015 05:51:12,663 [main] ERROR org.apache.lens.server.LensServices -
Could not recover from persisted state
java.net.ConnectException: Call From nnhost to nnurl:8020 failed on connection
exception: java.net.ConnectException: Connection refused; For more details see:
http://wiki.apache.org/hadoop/ConnectionRefused
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791)
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:731)
at org.apache.hadoop.ipc.Client.call(Client.java:1472)
at org.apache.hadoop.ipc.Client.call(Client.java:1399)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
at com.sun.proxy.$Proxy20.getBlockLocations(Unknown Source)
at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getBlockLocations(ClientNamenodeProtocolTranslatorPB.java:254)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
at com.sun.proxy.$Proxy21.getBlockLocations(Unknown Source)
at
org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:1220)
at
org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1210)
at
org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1200)
at
org.apache.hadoop.hdfs.DFSInputStream.fetchLocatedBlocksAndGetLastBlockLength(DFSInputStream.java:271)
at
org.apache.hadoop.hdfs.DFSInputStream.openInfo(DFSInputStream.java:238)
at org.apache.hadoop.hdfs.DFSInputStream.<init>(DFSInputStream.java:231)
at org.apache.hadoop.hdfs.DFSClient.open(DFSClient.java:1498)
at
org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:302)
at
org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:298)
at
org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
at
org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:298)
at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:766)
at
org.apache.lens.server.LensServices.setupPersistedState(LensServices.java:262)
at org.apache.lens.server.LensServices.init(LensServices.java:213)
at org.apache.lens.server.LensServer.startServices(LensServer.java:133)
at org.apache.lens.server.LensServer.<init>(LensServer.java:87)
at
org.apache.lens.server.LensServer.createLensServer(LensServer.java:76)
at org.apache.lens.server.LensServer.main(LensServer.java:186)
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
at
org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494)
at
org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:607)
at
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:705)
at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:368)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1521)
at org.apache.hadoop.ipc.Client.call(Client.java:1438)
... 29 more
21 May 2015 05:51:12,664 [main] FATAL org.apache.lens.server.LensServer -
Error while creating Lens server
java.lang.RuntimeException: Could not recover from persisted state
at org.apache.lens.server.LensServices.init(LensServices.java:216)
at org.apache.lens.server.LensServer.startServices(LensServer.java:133)
at org.apache.lens.server.LensServer.<init>(LensServer.java:87)
at
org.apache.lens.server.LensServer.createLensServer(LensServer.java:76)
at org.apache.lens.server.LensServer.main(LensServer.java:186)
Caused by: java.net.ConnectException: Call From nnhost to nnurl:8020 failed on
connection exception: java.net.ConnectException: Connection refused; For more
details see: http://wiki.apache.org/hadoop/ConnectionRefused
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791)
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:731)
at org.apache.hadoop.ipc.Client.call(Client.java:1472)
at org.apache.hadoop.ipc.Client.call(Client.java:1399)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
at com.sun.proxy.$Proxy20.getBlockLocations(Unknown Source)
at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getBlockLocations(ClientNamenodeProtocolTranslatorPB.java:254)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
at com.sun.proxy.$Proxy21.getBlockLocations(Unknown Source)
at
org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:1220)
at
org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1210)
at
org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1200)
at
org.apache.hadoop.hdfs.DFSInputStream.fetchLocatedBlocksAndGetLastBlockLength(DFSInputStream.java:271)
at
org.apache.hadoop.hdfs.DFSInputStream.openInfo(DFSInputStream.java:238)
at org.apache.hadoop.hdfs.DFSInputStream.<init>(DFSInputStream.java:231)
at org.apache.hadoop.hdfs.DFSClient.open(DFSClient.java:1498)
at
org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:302)
at
org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:298)
at
org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
at
org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:298)
at
org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:298)
at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:766)
at
org.apache.lens.server.LensServices.setupPersistedState(LensServices.java:262)
at org.apache.lens.server.LensServices.init(LensServices.java:213)
... 4 more
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
at
org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494)
at
org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:607)
at
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:705)
at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:368)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1521)
at org.apache.hadoop.ipc.Client.call(Client.java:1438)
... 29 more
21 May 2015 05:51:12,665 [main] INFO org.apache.lens.server.LensServices -
Stopping lens server
21 May 2015 05:51:12,665 [main] INFO org.apache.lens.server.LensServices -
Persisting server state in hdfs://nnurl/user/lens/persisted
21 May 2015 05:51:12,665 [main] INFO org.apache.lens.server.LensServices -
Persisting state of service:session
21 May 2015 05:51:12,732 [main] ERROR org.apache.lens.server.LensServices -
Could not persist server state
java.net.ConnectException: Call From nnhost to nnurl:8020 failed on connection
exception: java.net.ConnectException: Connection refused; For more details see:
http://wiki.apache.org/hadoop/ConnectionRefused
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791)
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:731)
at org.apache.hadoop.ipc.Client.call(Client.java:1472)
at org.apache.hadoop.ipc.Client.call(Client.java:1399)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
at com.sun.proxy.$Proxy20.create(Unknown Source)
at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.create(ClientNamenodeProtocolTranslatorPB.java:295)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
at com.sun.proxy.$Proxy21.create(Unknown Source)
at
org.apache.hadoop.hdfs.DFSOutputStream.newStreamForCreate(DFSOutputStream.java:1726)
at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1668)
at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1593)
at
org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:397)
at
org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:393)
at
org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
at
org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:393)
at
org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:337)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:908)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:889)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:786)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:775)
at
org.apache.lens.server.LensServices.persistLensServiceState(LensServices.java:296)
at org.apache.lens.server.LensServices.stop(LensServices.java:352)
at org.apache.lens.server.LensServer.main(LensServer.java:196)
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
at
org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494)
at
org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:607)
at
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:705)
at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:368)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1521)
at org.apache.hadoop.ipc.Client.call(Client.java:1438)
... 26 more
21 May 2015 05:51:12,733 [main] INFO org.apache.hive.service.CompositeService
- Error stopping query
java.lang.NullPointerException
at
org.apache.lens.server.query.QueryExecutionServiceImpl.stop(QueryExecutionServiceImpl.java:960)
at
org.apache.hive.service.CompositeService.stop(CompositeService.java:102)
at
org.apache.hive.service.CompositeService.stop(CompositeService.java:92)
at org.apache.lens.server.LensServices.stop(LensServices.java:360)
at org.apache.lens.server.LensServer.main(LensServer.java:196)
21 May 2015 05:51:12,733 [main] INFO org.apache.lens.server.EventServiceImpl
- Removed listener
org.apache.lens.server.metrics.MetricsServiceImpl$AsyncQueryStatusListener@755d3bd
21 May 2015 05:51:12,734 [main] INFO
org.apache.lens.server.api.metrics.MetricsService - Stopped metrics service
21 May 2015 05:51:12,734 [main] INFO org.apache.lens.server.EventServiceImpl
- Event service stopped
21 May 2015 05:51:12,734 [main] ERROR org.apache.lens.server.LensServer -
Error stopping services
java.lang.IllegalStateException: java.net.ConnectException: Call From nnhost to
nnurl:8020 failed on connection exception: java.net.ConnectException:
Connection refused; For more details see:
http://wiki.apache.org/hadoop/ConnectionRefused
at org.apache.lens.server.LensServices.stop(LensServices.java:358)
at org.apache.lens.server.LensServer.main(LensServer.java:196)
Caused by: java.net.ConnectException: Call From nnhost to nnurl:8020 failed on
connection exception: java.net.ConnectException: Connection refused; For more
details see: http://wiki.apache.org/hadoop/ConnectionRefused
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:791)
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:731)
at org.apache.hadoop.ipc.Client.call(Client.java:1472)
at org.apache.hadoop.ipc.Client.call(Client.java:1399)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232)
at com.sun.proxy.$Proxy20.create(Unknown Source)
at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.create(ClientNamenodeProtocolTranslatorPB.java:295)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
at com.sun.proxy.$Proxy21.create(Unknown Source)
at
org.apache.hadoop.hdfs.DFSOutputStream.newStreamForCreate(DFSOutputStream.java:1726)
at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1668)
at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1593)
at
org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:397)
at
org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:393)
at
org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
at
org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:393)
at
org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:337)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:908)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:889)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:786)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:775)
at
org.apache.lens.server.LensServices.persistLensServiceState(LensServices.java:296)
at org.apache.lens.server.LensServices.stop(LensServices.java:352)
... 1 more
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
at
org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494)
at
org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:607)
at
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:705)
at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:368)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1521)
at org.apache.hadoop.ipc.Client.call(Client.java:1438)
{noformat}
> Lensserver is not coming up properly when HDFS is down
> ------------------------------------------------------
>
> Key: LENS-570
> URL: https://issues.apache.org/jira/browse/LENS-570
> Project: Apache Lens
> Issue Type: Bug
> Components: operations, server
> Reporter: Amareshwari Sriramadasu
>
> We saw a situation where LensServer could not come up properly as HDFS is
> down and it tried to stop. But it couldnt go down gracefully as well.
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