I am stumbling across this error while running the Hadoop Balancer via Namenode. Anytips on cracking this. The process is also blocking the current user and giving an Out of Memory error on issuing any other command.
14/05/09 11:30:05 WARN hdfs.LeaseRenewer: Failed to renew lease for [DFSClient_NONMAPREDUCE_-77290934_1] for 936 seconds. Will retry shortly ...
java.io.IOException: Failed on local exception: java.io.IOException: Couldn't set up IO streams; Host Details : local host is: "hadoop01.xx.xx.xx.xx.com/30.0.1.176"; destination host is: "hadoop01.xx.xx.xx.xx.com":8022;
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:763)
at org.apache.hadoop.ipc.Client.call(Client.java:1242)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:202)
at $Proxy10.renewLease(Unknown Source)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:164)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:83)
at $Proxy10.renewLease(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.renewLease(ClientNamenodeProtocolTranslatorPB.java:458)
at org.apache.hadoop.hdfs.DFSClient.renewLease(DFSClient.java:649)
at org.apache.hadoop.hdfs.LeaseRenewer.renew(LeaseRenewer.java:417)
at org.apache.hadoop.hdfs.LeaseRenewer.run(LeaseRenewer.java:442)
at org.apache.hadoop.hdfs.LeaseRenewer.access$700(LeaseRenewer.java:71)
at org.apache.hadoop.hdfs.LeaseRenewer$1.run(LeaseRenewer.java:298)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.io.IOException: Couldn't set up IO streams
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:671)
at org.apache.hadoop.ipc.Client$Connection.access$2100(Client.java:252)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1291)
at org.apache.hadoop.ipc.Client.call(Client.java:1209)
... 15 more
Caused by: java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:640)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:664)
... 18 more
Once the number of threads created by Hadoop RPC reaches the (ulimit -u) on the node's number of processes, java will report it as an out-of-memory error.
Try increasing the maximum number of processes allowed, i.e. your ulimit -u value.
Related
I am running Map/Reduce tasks with hadoop 1.2.1.
While running heavy MR tasks, I encountered data node failure. The log messages follows:
2017-01-24 21:55:41,735 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: java.net.BindException: Problem binding to /0.0.0.0:50020 :
at org.apache.hadoop.ipc.Server.bind(Server.java:267)
at org.apache.hadoop.ipc.Server$Listener.<init>(Server.java:341)
at org.apache.hadoop.ipc.Server.<init>(Server.java:1539)
at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:569)
at org.apache.hadoop.ipc.RPC.getServer(RPC.java:530)
at org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:554)
at org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:321)
at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1712)
at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1651)
at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1669) at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1795)
at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1812)
Caused by: java.net.BindException:
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:433)
at sun.nio.ch.Net.bind(Net.java:425) at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at org.apache.hadoop.ipc.Server.bind(Server.java:265)
... 11 more
I guess, after the data node failure, it tried to restart but it failed.
How can I make it able to restart normally? so that the whole MR task is not harmed.
I cannot increase data replication factor in HDFS (it's set to 1 currently) due to the space problem of disks
Even a simple WordCount mapreduce also fails with same error.
Hadoop 2.6.0
Below are the Yarn logs.
It seems some sort of timeout happens during resource negotiation.
But i am unable to verify the same, exactly what causes timeout.
2016-11-11 15:38:09,313 INFO
org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncher:
Error launching appattempt_1478856936677_0004_000002. Got exception:
java.io.IOException: Failed on local exception: java.io.IOException:
java.net.SocketTimeoutException: 60000 millis timeout while waiting
for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.0.37.145:49054
remote=platform-demo/10.0.37.145:60487]; Host Details : local host is:
"platform-demo/10.0.37.145"; destination host is:
"platform-demo":60487;
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:772)
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$Invoker.invoke(ProtobufRpcEngine.java:232)
at com.sun.proxy.$Proxy79.startContainers(Unknown Source)
at org.apache.hadoop.yarn.api.impl.pb.client.ContainerManagementProtocolPBClientImpl.startContainers(ContainerManagementProtocolPBClientImpl.java:96)
at org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncher.launch(AMLauncher.java:119)
at org.apache.hadoop.yarn.server.resourcemanager.amlauncher.AMLauncher.run(AMLauncher.java:254)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745) Caused by: java.io.IOException: java.net.SocketTimeoutException: 60000 millis
timeout while waiting for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.0.37.145:49054
remote=platform-demo/10.0.37.145:60487]
at org.apache.hadoop.ipc.Client$Connection$1.run(Client.java:680)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
at org.apache.hadoop.ipc.Client$Connection.handleSaslConnectionFailure(Client.java:643)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:730)
at org.apache.hadoop.ipc.Client$Connection.access$2800(Client.java:368)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1521)
at org.apache.hadoop.ipc.Client.call(Client.java:1438)
... 9 more Caused by: java.net.SocketTimeoutException: 60000 millis timeout while waiting for channel to be ready for read. ch :
java.nio.channels.SocketChannel[connected local=/10.0.37.145:49054
remote=platform-demo/10.0.37.145:60487]
at org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:164)
at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:161)
at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:131)
at java.io.FilterInputStream.read(FilterInputStream.java:133)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:235)
at java.io.BufferedInputStream.read(BufferedInputStream.java:254)
at java.io.DataInputStream.readInt(DataInputStream.java:387)
at org.apache.hadoop.security.SaslRpcClient.saslConnect(SaslRpcClient.java:367)
at org.apache.hadoop.ipc.Client$Connection.setupSaslConnection(Client.java:553)
at org.apache.hadoop.ipc.Client$Connection.access$1800(Client.java:368)
at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:722)
at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:718)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:717)
... 12 more
2016-11-11 15:38:09,319 INFO
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl:
Updating application attempt appattempt_1478856936677_0004_000002 with
final state: FAILED, and exit status: -1000 2016-11-11 15:38:09,319
INFO
org.apache.hadoop.yarn.server.resourcemanager.rmapp.attempt.RMAppAttemptImpl:
appattempt_1478856936677_0004_000002 State change from ALLOCATED to
FINAL_SAVING
I tried to change below properties
yarn.nodemanager.resource.memory-mb
2200 Amount of physical memory, in MB,
that can be allocated for containers.
yarn.scheduler.minimum-allocation-mb
500
dfs.datanode.socket.write.timeout
3000000
dfs.socket.timeout 3000000
Q1.MapReduce Jobs failing, after accepted by YARN
Reason, multiple connections around 130 stuck on port 60487.
Q2.MapReduce Jobs failing, after accepted by YARN
Issue is due to hadoop tmp /app/hadoop/tmp. Empty this directory and re-tried MAPR job, job was executed successfully.
Q3.Unhealthy Node local-dirs are bad: /tmp/hadoop-hduser/nm-local-dir
Edit yarn-site.xml with folowing property.
<property>
<name>yarn.nodemanager.disk-health-checker.max-disk-utilization-per-disk-percentage</name>
<value>98.5</value>
</property>
Refer Why does Hadoop report "Unhealthy Node local-dirs and log-dirs are bad"?
We have HDP installed on AWS EC2 Cluster (2 Name Nodes, 3 Data Nodes, and 1 Management Server). In order to use phoenix (4.4.0.2.3.0.0-2557) with Hbase, we have followed basic steps mentioned in Hortonworks documentation.
(Hortonworks-Phoenix Installation Guide)
In order to connect with server, We have used phoenix-client jar with same version as server and written a basic Java driver for connection.
Class.forName("org.apache.phoenix.jdbc.PhoenixDriver").newInstance();
Connection conn = DriverManager.getConnection("jdbc:phoenix:zookeeper_quorom_server_ip","","");
Getting below error after running this program.
org.apache.phoenix.exception.PhoenixIOException: callTimeout=1200000, callDuration=1237464:
at org.apache.phoenix.util.ServerUtil.parseServerException(ServerUtil.java:108)
at org.apache.phoenix.query.ConnectionQueryServicesImpl.ensureTableCreated(ConnectionQueryServicesImpl.java:881)
at org.apache.phoenix.query.ConnectionQueryServicesImpl.createTable(ConnectionQueryServicesImpl.java:1215)
at org.apache.phoenix.query.DelegateConnectionQueryServices.createTable(DelegateConnectionQueryServices.java:112)
at org.apache.phoenix.schema.MetaDataClient.createTableInternal(MetaDataClient.java:1902)
at org.apache.phoenix.schema.MetaDataClient.createTable(MetaDataClient.java:744)
at org.apache.phoenix.compile.CreateTableCompiler$2.execute(CreateTableCompiler.java:186)
at org.apache.phoenix.jdbc.PhoenixStatement$2.call(PhoenixStatement.java:303)
at org.apache.phoenix.jdbc.PhoenixStatement$2.call(PhoenixStatement.java:295)
at org.apache.phoenix.call.CallRunner.run(CallRunner.java:53)
at org.apache.phoenix.jdbc.PhoenixStatement.executeMutation(PhoenixStatement.java:293)
at org.apache.phoenix.jdbc.PhoenixStatement.executeUpdate(PhoenixStatement.java:1236)
at org.apache.phoenix.query.ConnectionQueryServicesImpl$12.call(ConnectionQueryServicesImpl.java:1893)
at org.apache.phoenix.query.ConnectionQueryServicesImpl$12.call(ConnectionQueryServicesImpl.java:1862)
at org.apache.phoenix.util.PhoenixContextExecutor.call(PhoenixContextExecutor.java:77)
at org.apache.phoenix.query.ConnectionQueryServicesImpl.init(ConnectionQueryServicesImpl.java:1862)
at org.apache.phoenix.jdbc.PhoenixDriver.getConnectionQueryServices(PhoenixDriver.java:180)
at org.apache.phoenix.jdbc.PhoenixEmbeddedDriver.connect(PhoenixEmbeddedDriver.java:132)
at org.apache.phoenix.jdbc.PhoenixDriver.connect(PhoenixDriver.java:151)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at HadoopConnector.main(HadoopConnector.java:17)
Caused by: java.net.SocketTimeoutException: callTimeout=1200000, callDuration=1237464:
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:159)
at org.apache.hadoop.hbase.client.HBaseAdmin.executeCallable(HBaseAdmin.java:3917)
at org.apache.hadoop.hbase.client.HBaseAdmin.getTableDescriptor(HBaseAdmin.java:441)
at org.apache.hadoop.hbase.client.HBaseAdmin.getTableDescriptor(HBaseAdmin.java:463)
at org.apache.phoenix.query.ConnectionQueryServicesImpl.ensureTableCreated(ConnectionQueryServicesImpl.java:815)
... 20 more
Caused by: org.apache.hadoop.hbase.MasterNotRunningException: org.apache.hadoop.hbase.MasterNotRunningException: Can't get connection to ZooKeeper: KeeperErrorCode = ConnectionLoss for /hbase
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation$StubMaker.makeStub(ConnectionManager.java:1533)
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation$MasterServiceStubMaker.makeStub(ConnectionManager.java:1553)
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.getKeepAliveMasterService(ConnectionManager.java:1704)
at org.apache.hadoop.hbase.client.MasterCallable.prepare(MasterCallable.java:38)
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:124)
... 24 more
Caused by: org.apache.hadoop.hbase.MasterNotRunningException: Can't get connection to ZooKeeper: KeeperErrorCode = ConnectionLoss for /hbase
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.checkIfBaseNodeAvailable(ConnectionManager.java:906)
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.access$400(ConnectionManager.java:545)
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation$StubMaker.makeStubNoRetries(ConnectionManager.java:1483)
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation$StubMaker.makeStub(ConnectionManager.java:1524)
... 28 more
Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase
at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1045)
at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:222)
at org.apache.hadoop.hbase.zookeeper.ZKUtil.checkExists(ZKUtil.java:541)
at org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.checkIfBaseNodeAvailable(ConnectionManager.java:895)
... 31 more
When I try to configure squirrel ( hbase-phoniex-SQL-client) then I am getting similar timeout exception while connecting.
Also tried pinging my zookeeper quoroum server IP from command prompt then it gives a request timeout error. Not sure what I am doing wrong here.
I am using cdh3 update 4 tarball for development purpose. I have hadoop up and running. Now, I also downloaded equivalent flume tarball from cloudera viz 1.1.0 and tried writing a tail of log file into hdfs using hdfs-sink. When I run the flume agent, it starts okay but ends up in error when it attempts writing the new event data into hdfs. I couldn't find better group to post this question than stackoverflow.
here is flume configuration I am using
agent.sources=exec-source
agent.sinks=hdfs-sink
agent.channels=ch1
agent.sources.exec-source.type=exec
agent.sources.exec-source.command=tail -F /locationoffile
agent.sinks.hdfs-sink.type=hdfs
agent.sinks.hdfs-sink.hdfs.path=hdfs://localhost:8020/flume
agent.sinks.hdfs-sink.hdfs.filePrefix=apacheaccess
agent.channels.ch1.type=memory
agent.channels.ch1.capacity=1000
agent.sources.exec-source.channels=ch1
agent.sinks.hdfs-sink.channel=ch1
Also, this is a small snippet of error that gets displayed in console when it receives new event data and tries writing it into hdfs.
13/03/16 17:59:21 INFO hdfs.BucketWriter: Creating hdfs://localhost:8020/user/hdfs-user/flume/apacheaccess.1363436060424.tmp
13/03/16 17:59:22 WARN hdfs.HDFSEventSink: HDFS IO error
java.io.IOException: Failed on local exception: java.io.IOException: Broken pipe; Host Details : local host is: "sumit-HP-Pavilion-dv3-Notebook-PC/127.0.0.1"; destination host is: "localhost":8020;
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:759)
at org.apache.hadoop.ipc.Client.call(Client.java:1164)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:202)
at $Proxy9.create(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:164)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:83)
at $Proxy9.create(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.create(ClientNamenodeProtocolTranslatorPB.java:192)
at org.apache.hadoop.hdfs.DFSOutputStream.<init>(DFSOutputStream.java:1298)
at org.apache.hadoop.hdfs.DFSOutputStream.newStreamForCreate(DFSOutputStream.java:1317)
at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1215)
at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1173)
at org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:272)
at org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:261)
at org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:78)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:805)
at org.apache.hadoop.io.SequenceFile$Writer.<init>(SequenceFile.java:1060)
at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:270)
at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:369)
at org.apache.flume.sink.hdfs.HDFSSequenceFile.open(HDFSSequenceFile.java:65)
at org.apache.flume.sink.hdfs.HDFSSequenceFile.open(HDFSSequenceFile.java:49)
at org.apache.flume.sink.hdfs.BucketWriter.doOpen(BucketWriter.java:190)
at org.apache.flume.sink.hdfs.BucketWriter.access$000(BucketWriter.java:50)
at org.apache.flume.sink.hdfs.BucketWriter$1.run(BucketWriter.java:157)
at org.apache.flume.sink.hdfs.BucketWriter$1.run(BucketWriter.java:154)
at org.apache.flume.sink.hdfs.BucketWriter.runPrivileged(BucketWriter.java:127)
at org.apache.flume.sink.hdfs.BucketWriter.open(BucketWriter.java:154)
at org.apache.flume.sink.hdfs.BucketWriter.append(BucketWriter.java:316)
at org.apache.flume.sink.hdfs.HDFSEventSink$1.call(HDFSEventSink.java:718)
at org.apache.flume.sink.hdfs.HDFSEventSink$1.call(HDFSEventSink.java:715)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.io.IOException: Broken pipe
at sun.nio.ch.FileDispatcher.write0(Native Method)
at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:29)
at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:100)
at sun.nio.ch.IOUtil.write(IOUtil.java:71)
at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:334)
at org.apache.hadoop.net.SocketOutputStream$Writer.performIO(SocketOutputStream.java:62)
at org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:143)
at org.apache.hadoop.net.SocketOutputStream.write(SocketOutputStream.java:153)
at org.apache.hadoop.net.SocketOutputStream.write(SocketOutputStream.java:114)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at java.io.DataOutputStream.flush(DataOutputStream.java:106)
at org.apache.hadoop.ipc.Client$Connection.sendParam(Client.java:861)
at org.apache.hadoop.ipc.Client.call(Client.java:1141)
... 37 more
13/03/16 17:59:27 INFO hdfs.BucketWriter: Creating hdfs://localhost:8020/user/hdfs-user/flume/apacheaccess.1363436060425.tmp
13/03/16 17:59:27 WARN hdfs.HDFSEventSink: HDFS IO error
java.io.IOException: Failed on local exception: java.io.IOException: Broken pipe; Host Details : local host is: "sumit-HP-Pavilion-dv3-Notebook-PC/127.0.0.1"; destination host is: "localhost":8020;
As people in cloudera mail list suggest, there are probable reasons of this error:
The HDFS safemode is turned on. Try to run hadoop fs -safemode leave and see if the error goes away.
Flume and Hadoop versions are mismatched. To check this replace the hadoop-core.jar in flume/lib directory with the one found in hadoop's installation folder.
After upgrade of cassandra from 0.8.2 to 0.8.4, got this error
I have restarted cassandra, removed data, etc. nothing helps
I have 6 identical machines in the cloud, before it was working fine.
If I make netstat then it shows port 9160 listening
nodetool ... ring - responces with 6 machines UP.
what could be the problem? : (
Exception in thread "main" java.io.IOException: Could not get input splits
at org.apache.cassandra.hadoop.ColumnFamilyInputFormat.getSplits(ColumnFamilyInputFormat.java:157)
at org.apache.hadoop.mapred.JobClient.writeNewSplits(JobClient.java:885)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:779)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:432)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:447)
at WordCount.run(Unknown Source)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at WordCount.main(Unknown Source)
Caused by: java.util.concurrent.ExecutionException: java.io.IOException: failed connecting to all endpoints slave1/98.188.69.242
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
at java.util.concurrent.FutureTask.get(FutureTask.java:83)
at org.apache.cassandra.hadoop.ColumnFamilyInputFormat.getSplits(ColumnFamilyInputFormat.java:153)
... 7 more
Caused by: java.io.IOException: failed connecting to all endpoints slave1/98.188.69.242
at org.apache.cassandra.hadoop.ColumnFamilyInputFormat.getSubSplits(ColumnFamilyInputFormat.java:234)
at org.apache.cassandra.hadoop.ColumnFamilyInputFormat.access$200(ColumnFamilyInputFormat.java:70)
at org.apache.cassandra.hadoop.ColumnFamilyInputFormat$SplitCallable.call(ColumnFamilyInputFormat.java:190)
at org.apache.cassandra.hadoop.ColumnFamilyInputFormat$SplitCallable.call(ColumnFamilyInputFormat.java:175)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
I don't know whether you have solved the problem. I met with the same problem as yours (Same configuration as yours too) and trrie to solve it.
Problem location:
public List call() throws Exception { ... List
tokens = getSubSplits(keyspace, cfName, range, conf); ...
In the method getSubSplits when calling method
createConnection(host, ConfigHelper.getRpcPort(conf), true)
, the format of host is not right. It is hostname/10.197.34.111 sometimes (ip_address), so createConnection will fail. We need to extract the ip address and then call createConnection.
You can try to change the code and try Hadoop again.
Good luck!