Hi,
i am currently trying to run my hadoop program on a cluster. Sadly
though my datanodes and tasktrackers seem to have difficulties with
their communication as their logs say:
* Some datanodes and tasktrackers seem to have portproblems of some kind
as it can be seen in the logs below. I wondered if this might be due to
reasons correllated with the localhost entry in /etc/hosts as you can
read in alot of posts with similar errors, but i checked the file
neither localhost nor 127.0.0.1/127.0.1.1 is bound there. (although you
can ping localhost... the technician of the cluster said he'd be looking
for the mechanics resolving localhost)
* The other nodes can not speak with the namenode and jobtracker
(its-cs131). Although it is absolutely not clear, why this is happening:
the "dfs -put" i do directly before the job is running fine, which seems
to imply that communication between those servers is working flawlessly.
Is there any reason why this might happen?
Regards,
Elmar
LOGS BELOW:
\____Datanodes
After successfully putting the data to hdfs (at this point i thought
namenode and datanodes have to communicate), i get the following errors
when starting the job:
There are 2 kinds of logs i found: the first one is big (about 12MB) and
looks like this:
############################### LOG TYPE 1
############################################################
2012-08-13 08:23:27,331 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35554. Already tried 0 time(s).
2012-08-13 08:23:28,332 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35554. Already tried 1 time(s).
2012-08-13 08:23:29,332 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35554. Already tried 2 time(s).
2012-08-13 08:23:30,332 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35554. Already tried 3 time(s).
2012-08-13 08:23:31,333 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35554. Already tried 4 time(s).
2012-08-13 08:23:32,333 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35554. Already tried 5 time(s).
2012-08-13 08:23:33,334 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35554. Already tried 6 time(s).
2012-08-13 08:23:34,334 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35554. Already tried 7 time(s).
2012-08-13 08:23:35,334 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35554. Already tried 8 time(s).
2012-08-13 08:23:36,335 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35554. Already tried 9 time(s).
2012-08-13 08:23:36,335 WARN
org.apache.hadoop.hdfs.server.datanode.DataNode:
java.net.ConnectException: Call to its-cs131/141.51.205.41:35554 failed
on connection exception: java.net.ConnectException: Connection refused
at org.apache.hadoop.ipc.Client.wrapException(Client.java:1095)
at org.apache.hadoop.ipc.Client.call(Client.java:1071)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
at $Proxy5.sendHeartbeat(Unknown Source)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.offerService(DataNode.java:904)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.run(DataNode.java:1458)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
at
org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:489)
at
org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:434)
at
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:560)
at org.apache.hadoop.ipc.Client$Connection.access$2000(Client.java:184)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1202)
at org.apache.hadoop.ipc.Client.call(Client.java:1046)
... 5 more
... (this continues til the end of the log)
The second is short kind:
########################### LOG TYPE 2
############################################################
2012-08-13 00:59:19,038 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting DataNode
STARTUP_MSG: host = its-cs133.its.uni-kassel.de/141.51.205.43
STARTUP_MSG: args = []
STARTUP_MSG: version = 1.0.2
STARTUP_MSG: build =
https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.0.2 -r
1304954; compiled by 'hortonfo' on Sat Mar 24 23:58:21 UTC 2012
************************************************************/
2012-08-13 00:59:19,203 INFO
org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties from
hadoop-metrics2.properties
2012-08-13 00:59:19,216 INFO
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source
MetricsSystem,sub=Stats registered.
2012-08-13 00:59:19,217 INFO
org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot
period at 10 second(s).
2012-08-13 00:59:19,218 INFO
org.apache.hadoop.metrics2.impl.MetricsSystemImpl: DataNode metrics
system started
2012-08-13 00:59:19,306 INFO
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source
ugi registered.
2012-08-13 00:59:19,346 INFO org.apache.hadoop.util.NativeCodeLoader:
Loaded the native-hadoop library
2012-08-13 00:59:20,482 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35554. Already tried 0 time(s).
2012-08-13 00:59:21,584 INFO
org.apache.hadoop.hdfs.server.common.Storage: Storage directory
/home/work/bmacek/hadoop/hdfs/slave is not formatted.
2012-08-13 00:59:21,584 INFO
org.apache.hadoop.hdfs.server.common.Storage: Formatting ...
2012-08-13 00:59:21,787 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: Registered
FSDatasetStatusMBean
2012-08-13 00:59:21,897 INFO
org.apache.hadoop.hdfs.server.datanode.FSDatasetAsyncDiskService:
Shutting down all async disk service threads...
2012-08-13 00:59:21,897 INFO
org.apache.hadoop.hdfs.server.datanode.FSDatasetAsyncDiskService: All
async disk service threads have been shut down.
2012-08-13 00:59:21,898 ERROR
org.apache.hadoop.hdfs.server.datanode.DataNode: java.net.BindException:
Problem binding to /0.0.0.0:50010 : Address already in use
at org.apache.hadoop.ipc.Server.bind(Server.java:227)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:404)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:299)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1582)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1521)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1539)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1665)
at
org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1682)
Caused by: java.net.BindException: Address already in use
at sun.nio.ch.Net.bind(Native Method)
at
sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:119)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
at org.apache.hadoop.ipc.Server.bind(Server.java:225)
... 7 more
2012-08-13 00:59:21,899 INFO
org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at
its-cs133.its.uni-kassel.de/141.51.205.43
************************************************************/
\_____TastTracker
With TaskTrackers it is the same: there are 2 kinds.
############################### LOG TYPE 1
############################################################
2012-08-13 02:09:54,645 INFO org.apache.hadoop.mapred.TaskTracker:
Resending 'status' to 'its-cs131' with reponseId '879
2012-08-13 02:09:55,646 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35555. Already tried 0 time(s).
2012-08-13 02:09:56,646 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35555. Already tried 1 time(s).
2012-08-13 02:09:57,647 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35555. Already tried 2 time(s).
2012-08-13 02:09:58,647 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35555. Already tried 3 time(s).
2012-08-13 02:09:59,648 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35555. Already tried 4 time(s).
2012-08-13 02:10:00,648 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35555. Already tried 5 time(s).
2012-08-13 02:10:01,649 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35555. Already tried 6 time(s).
2012-08-13 02:10:02,649 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35555. Already tried 7 time(s).
2012-08-13 02:10:03,650 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35555. Already tried 8 time(s).
2012-08-13 02:10:04,650 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35555. Already tried 9 time(s).
2012-08-13 02:10:04,651 ERROR org.apache.hadoop.mapred.TaskTracker:
Caught exception: java.net.ConnectException: Call to
its-cs131/141.51.205.41:35555 failed on connection exception:
java.net.ConnectException: Connection refused
at org.apache.hadoop.ipc.Client.wrapException(Client.java:1095)
at org.apache.hadoop.ipc.Client.call(Client.java:1071)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
at org.apache.hadoop.mapred.$Proxy5.heartbeat(Unknown Source)
at
org.apache.hadoop.mapred.TaskTracker.transmitHeartBeat(TaskTracker.java:1857)
at
org.apache.hadoop.mapred.TaskTracker.offerService(TaskTracker.java:1653)
at org.apache.hadoop.mapred.TaskTracker.run(TaskTracker.java:2503)
at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:3744)
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
at
org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:489)
at
org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:434)
at
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:560)
at org.apache.hadoop.ipc.Client$Connection.access$2000(Client.java:184)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1202)
at org.apache.hadoop.ipc.Client.call(Client.java:1046)
... 6 more
########################### LOG TYPE 2
############################################################
2012-08-13 00:59:24,376 INFO org.apache.hadoop.mapred.TaskTracker:
STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting TaskTracker
STARTUP_MSG: host = its-cs133.its.uni-kassel.de/141.51.205.43
STARTUP_MSG: args = []
STARTUP_MSG: version = 1.0.2
STARTUP_MSG: build =
https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.0.2 -r
1304954; compiled by 'hortonfo' on Sat Mar 24 23:58:21 UTC 2012
************************************************************/
2012-08-13 00:59:24,569 INFO
org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties from
hadoop-metrics2.properties
2012-08-13 00:59:24,626 INFO
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source
MetricsSystem,sub=Stats registered.
2012-08-13 00:59:24,627 INFO
org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot
period at 10 second(s).
2012-08-13 00:59:24,627 INFO
org.apache.hadoop.metrics2.impl.MetricsSystemImpl: TaskTracker metrics
system started
2012-08-13 00:59:24,950 INFO
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source
ugi registered.
2012-08-13 00:59:25,146 INFO org.mortbay.log: Logging to
org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via
org.mortbay.log.Slf4jLog
2012-08-13 00:59:25,206 INFO org.apache.hadoop.http.HttpServer: Added
global filtersafety
(class=org.apache.hadoop.http.HttpServer$QuotingInputFilter)
2012-08-13 00:59:25,232 INFO org.apache.hadoop.mapred.TaskLogsTruncater:
Initializing logs' truncater with mapRetainSize=-1 and reduceRetainSize=-1
2012-08-13 00:59:25,237 INFO org.apache.hadoop.mapred.TaskTracker:
Starting tasktracker with owner as bmacek
2012-08-13 00:59:25,239 INFO org.apache.hadoop.mapred.TaskTracker: Good
mapred local directories are: /home/work/bmacek/hadoop/hdfs/tmp/mapred/local
2012-08-13 00:59:25,244 INFO org.apache.hadoop.util.NativeCodeLoader:
Loaded the native-hadoop library
2012-08-13 00:59:25,255 INFO
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source
jvm registered.
2012-08-13 00:59:25,256 INFO
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source
TaskTrackerMetrics registered.
2012-08-13 00:59:25,279 INFO org.apache.hadoop.ipc.Server: Starting
SocketReader
2012-08-13 00:59:25,282 INFO
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source
RpcDetailedActivityForPort54850 registered.
2012-08-13 00:59:25,282 INFO
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source
RpcActivityForPort54850 registered.
2012-08-13 00:59:25,287 INFO org.apache.hadoop.ipc.Server: IPC Server
Responder: starting
2012-08-13 00:59:25,288 INFO org.apache.hadoop.ipc.Server: IPC Server
listener on 54850: starting
2012-08-13 00:59:25,288 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 0 on 54850: starting
2012-08-13 00:59:25,288 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 1 on 54850: starting
2012-08-13 00:59:25,289 INFO org.apache.hadoop.mapred.TaskTracker:
TaskTracker up at: localhost/127.0.0.1:54850
2012-08-13 00:59:25,289 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 3 on 54850: starting
2012-08-13 00:59:25,289 INFO org.apache.hadoop.ipc.Server: IPC Server
handler 2 on 54850: starting
2012-08-13 00:59:25,289 INFO org.apache.hadoop.mapred.TaskTracker:
Starting tracker
tracker_its-cs133.its.uni-kassel.de:localhost/127.0.0.1:54850
2012-08-13 00:59:26,321 INFO org.apache.hadoop.ipc.Client: Retrying
connect to server: its-cs131/141.51.205.41:35555. Already tried 0 time(s).
2012-08-13 00:59:38,104 INFO org.apache.hadoop.mapred.TaskTracker:
Starting thread: Map-events fetcher for all reduce tasks on
tracker_its-cs133.its.uni-kassel.de:localhost/127.0.0.1:54850
2012-08-13 00:59:38,120 INFO org.apache.hadoop.util.ProcessTree: setsid
exited with exit code 0
2012-08-13 00:59:38,134 INFO org.apache.hadoop.mapred.TaskTracker: Using
ResourceCalculatorPlugin :
org.apache.hadoop.util.LinuxResourceCalculatorPlugin@445e228
2012-08-13 00:59:38,137 WARN org.apache.hadoop.mapred.TaskTracker:
TaskTracker's totalMemoryAllottedForTasks is -1. TaskMemoryManager is
disabled.
2012-08-13 00:59:38,145 INFO org.apache.hadoop.mapred.IndexCache:
IndexCache created with max memory = 10485760
2012-08-13 00:59:38,158 INFO
org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source
ShuffleServerMetrics registered.
2012-08-13 00:59:38,161 INFO org.apache.hadoop.http.HttpServer: Port
returned by webServer.getConnectors()[0].getLocalPort() before open() is
-1. Opening the listener on 50060
2012-08-13 00:59:38,161 ERROR org.apache.hadoop.mapred.TaskTracker: Can
not start task tracker because java.net.BindException: Address already
in use
at sun.nio.ch.Net.bind(Native Method)
at
sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:119)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
at
org.mortbay.jetty.nio.SelectChannelConnector.open(SelectChannelConnector.java:216)
at org.apache.hadoop.http.HttpServer.start(HttpServer.java:581)
at org.apache.hadoop.mapred.TaskTracker.<init>(TaskTracker.java:1502)
at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:3742)
2012-08-13 00:59:38,163 INFO org.apache.hadoop.mapred.TaskTracker:
SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down TaskTracker at
its-cs133.its.uni-kassel.de/141.51.205.43
************************************************************/
