05_accumulo_gc_log

-bash-4.1# cat accumulo-gc-stderr---supervisor-6DKWec.log
Thread "gc" died java.lang.reflect.InvocationTargetException
java.lang.reflect.InvocationTargetException
	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.accumulo.start.Main$1.run(Main.java:103)
	at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.RuntimeException: Can't tell if Accumulo is initialized; can't read instance id at /accumulo/instance_id
	at org.apache.accumulo.core.client.ZooKeeperInstance.getInstanceIDFromHdfs(ZooKeeperInstance.java:305)
	at org.apache.accumulo.server.client.HdfsZooInstance._getInstanceID(HdfsZooInstance.java:126)
	at org.apache.accumulo.server.client.HdfsZooInstance.getInstanceID(HdfsZooInstance.java:119)
	at org.apache.accumulo.server.conf.ZooConfiguration.getInstance(ZooConfiguration.java:55)
	at org.apache.accumulo.server.conf.ServerConfiguration.getZooConfiguration(ServerConfiguration.java:50)
	at org.apache.accumulo.server.conf.ServerConfiguration.getConfiguration(ServerConfiguration.java:104)
	at org.apache.accumulo.server.gc.SimpleGarbageCollector.main(SimpleGarbageCollector.java:147)
	... 6 more
Caused by: java.net.ConnectException: Call From grail/172.17.0.40 to grail:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
	at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:783)
	at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:730)
	at org.apache.hadoop.ipc.Client.call(Client.java:1414)
	at org.apache.hadoop.ipc.Client.call(Client.java:1363)
	at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
	at com.sun.proxy.$Proxy14.getListing(Unknown Source)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:190)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:103)
	at com.sun.proxy.$Proxy14.getListing(Unknown Source)
	at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getListing(ClientNamenodeProtocolTranslatorPB.java:515)
	at org.apache.hadoop.hdfs.DFSClient.listPaths(DFSClient.java:1743)
	at org.apache.hadoop.hdfs.DFSClient.listPaths(DFSClient.java:1726)
	at org.apache.hadoop.hdfs.DistributedFileSystem.listStatusInternal(DistributedFileSystem.java:650)
	at org.apache.hadoop.hdfs.DistributedFileSystem.access$600(DistributedFileSystem.java:102)
	at org.apache.hadoop.hdfs.DistributedFileSystem$14.doCall(DistributedFileSystem.java:712)
	at org.apache.hadoop.hdfs.DistributedFileSystem$14.doCall(DistributedFileSystem.java:708)
	at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
	at org.apache.hadoop.hdfs.DistributedFileSystem.listStatus(DistributedFileSystem.java:708)
	at org.apache.accumulo.core.client.ZooKeeperInstance.getInstanceIDFromHdfs(ZooKeeperInstance.java:288)
	... 12 more
Caused by: java.net.ConnectException: Connection refused
	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
	at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:529)
	at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:493)
	at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:604)
	at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:699)
	at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:367)
	at org.apache.hadoop.ipc.Client.getConnection(Client.java:1462)
	at org.apache.hadoop.ipc.Client.call(Client.java:1381)
	... 32 more