Vivek Ratnavel Subramanian created HDDS-2107:
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Summary: Datanodes should retry forever to connect to SCM in an
unsecure environment
Key: HDDS-2107
URL: https://issues.apache.org/jira/browse/HDDS-2107
Project: Hadoop Distributed Data Store
Issue Type: Bug
Components: Ozone Datanode
Affects Versions: 0.4.1
Reporter: Vivek Ratnavel Subramanian
Assignee: Vivek Ratnavel Subramanian
In an unsecure environment, the datanodes try upto 10 times after waiting for
1000 milliseconds each time before throwing this error:
{code:java}
Unable to communicate to SCM server at
jmccarthy-ozone-unsecure2-2.vpc.cloudera.com:9861 for past 0 seconds.
java.net.ConnectException: Call From
jmccarthy-ozone-unsecure2-4.vpc.cloudera.com/10.65.36.118 to
jmccarthy-ozone-unsecure2-2.vpc.cloudera.com:9861 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:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:831)
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:755)
at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1515)
at org.apache.hadoop.ipc.Client.call(Client.java:1457)
at org.apache.hadoop.ipc.Client.call(Client.java:1367)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:228)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:116)
at com.sun.proxy.$Proxy33.getVersion(Unknown Source)
at
org.apache.hadoop.ozone.protocolPB.StorageContainerDatanodeProtocolClientSideTranslatorPB.getVersion(StorageContainerDatanodeProtocolClientSideTranslatorPB.java:112)
at
org.apache.hadoop.ozone.container.common.states.endpoint.VersionEndpointTask.call(VersionEndpointTask.java:70)
at
org.apache.hadoop.ozone.container.common.states.endpoint.VersionEndpointTask.call(VersionEndpointTask.java:42)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at
org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531)
at
org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:690)
at
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:794)
at org.apache.hadoop.ipc.Client$Connection.access$3700(Client.java:411)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1572)
at org.apache.hadoop.ipc.Client.call(Client.java:1403)
... 13 more
{code}
The datanodes should try forever to connect with SCM and not fail immediately
after 10 retries.
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