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From Ranjan Sen <ranjan_...@hotmail.com>
Subject tserver not able to connect
Date Thu, 22 Nov 2012 19:11:26 GMT







Hi 
I have the following connection refused problem when a tserver is trying to connect to master.

I checked the ip:port for the services as follows: 
log from tserver: 22 17:56:51,289 [ipc.Client] INFO : Retrying connect to server: ip-10-145-140-125.ec2.internal/10.145.140.125:9000.
Already tried 9 time(s).22 17:56:51,292 [logger.LogService] FATAL: Failed to initialize log
service args=[--address, ip-10-35-77-90.ec2.internal]java.lang.RuntimeException: Accumulo
not initialized, there is no instance id at /accumulo/instance_id        at org.apache.accumulo.core.client.ZooKeeperInstance.getInstanceIDFromHdfs(ZooKeeperInstance.java:272)
       at org.apache.accumulo.server.conf.ZooConfiguration.getInstance(ZooConfiguration.java:65)
       at org.apache.accumulo.server.conf.ServerConfiguration.getZooConfiguration(ServerConfiguration.java:49)
       at org.apache.accumulo.server.conf.ServerConfiguration.getSystemConfiguration(ServerConfiguration.java:58)
       at org.apache.accumulo.server.client.HdfsZooInstance.<init>(HdfsZooInstance.java:62)
       at org.apache.accumulo.server.client.HdfsZooInstance.getInstance(HdfsZooInstance.java:70)
       at org.apache.accumulo.server.Accumulo.init(Accumulo.java:132)        at org.apache.accumulo.server.logger.LogService.<init>(LogService.java:142)
       at org.apache.accumulo.server.logger.LogService.main(LogService.java:128)        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:616)        at org.apache.accumulo.start.Main$1.run(Main.java:89)
       at java.lang.Thread.run(Thread.java:679)Caused by: java.net.ConnectException: Call
to ip-10-145-140-125.ec2.internal/10.145.140.125:9000 failed on connection exception: java.net.ConnectException:
Connection refused        at org.apache.hadoop.ipc.Client.wrapException(Client.java:1099)
       at org.apache.hadoop.ipc.Client.call(Client.java:1075)        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
       at $Proxy1.getProtocolVersion(Unknown Source)        at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:396)
       at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:379)        at org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:119)
       at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:238)        at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:203)
       at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:89)
       at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1386)        at
org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66)        at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1404)
       at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:254)        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:123)
       at org.apache.accumulo.core.file.FileUtil.getFileSystem(FileUtil.java:554)        at
org.apache.accumulo.core.client.ZooKeeperInstance.getInstanceIDFromHdfs(ZooKeeperInstance.java:258)
       ... 14 moreCaused by: java.net.ConnectException: Connection refused        at sun.nio.ch.SocketChannelImpl.checkConnect(Native
Method)        at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:592) 
      at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206) 
      at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:489)

The netstat listing is
2012-11-22 18:55:29,828 [myid:] - INFO  [main-EventThread:ClientCnxn$EventThread@511] - EventThread
shut downubuntu@ip-10-145-140-125:/opt/zookeeper$ netstat -pnl(Not all processes could be
identified, non-owned process info will not be shown, you would have to be root to see it
all.)Active Internet connections (only servers)Proto Recv-Q Send-Q Local Address         
 Foreign Address         State       PID/Program nametcp        0      0 0.0.0.0:50060   
       0.0.0.0:*               LISTEN      1610/java       tcp        0      0 127.0.0.1:59661
        0.0.0.0:*               LISTEN      1610/java       tcp        0      0 0.0.0.0:50030
          0.0.0.0:*               LISTEN      1455/java       tcp        0      0 0.0.0.0:39123
          0.0.0.0:*               LISTEN      1740/java       tcp        0      0 0.0.0.0:50070
          0.0.0.0:*               LISTEN      1050/java       tcp        0      0 0.0.0.0:22
             0.0.0.0:*               LISTEN      -               tcp        0      0 0.0.0.0:35159
          0.0.0.0:*               LISTEN      1367/java       tcp        0      0 0.0.0.0:50010
          0.0.0.0:*               LISTEN      1199/java       tcp        0      0 0.0.0.0:33786
          0.0.0.0:*               LISTEN      1050/java       tcp        0      0 0.0.0.0:50075
          0.0.0.0:*               LISTEN      1199/java       tcp        0      0 0.0.0.0:49500
          0.0.0.0:*               LISTEN      1199/java       tcp        0      0 0.0.0.0:50020
          0.0.0.0:*               LISTEN      1199/java       tcp        0      0 0.0.0.0:2181
           0.0.0.0:*               LISTEN      1740/java       tcp        0      0 0.0.0.0:53383
          0.0.0.0:*               LISTEN      1455/java       tcp        0      0 10.145.140.125:9000
    0.0.0.0:*               LISTEN      1050/java       tcp        0      0 10.145.140.125:9001
    0.0.0.0:*               LISTEN      1455/java       tcp        0      0 0.0.0.0:50090
          0.0.0.0:*               LISTEN      1367/java       tcp6       0      0 :::22  
                :::*                    LISTEN      -               udp        0      0 0.0.0.0:68
             0.0.0.0:*                           -               Active UNIX domain sockets
(only servers)Proto RefCnt Flags       Type       State         I-Node   PID/Program name
   Pathunix  2      [ ACC ]     STREAM     LISTENING     5594     -                   @/com/ubuntu/upstartunix
 2      [ ACC ]     SEQPACKET  LISTENING     1824     -                   @/org/kernel/udev/udevdunix
 2      [ ACC ]     STREAM     LISTENING     6318     -                   /var/run/dbus/system_bus_socketubuntu@ip-10-145-140-125:/opt/zookeeper$

 		 	   		  
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