Я пытаюсь развернуть Hadoop-RDMA в кластере с 8 узлами IB (OFED-1.5.3-4.0.42) и столкнулся со следующей проблемой (он же файл ... может быть реплицирован только на 0 узлов, а не на 1):
frolo@A11:~/hadoop-rdma-0.9.8> ./bin/hadoop dfs -copyFromLocal ../pg132.txt /user/frolo/input/pg132.txt
Warning: $HADOOP_HOME is deprecated.
14/02/05 19:06:30 WARN hdfs.DFSClient: DataStreamer Exception: java.lang.reflect.UndeclaredThrowableException
at com.sun.proxy.$Proxy1.addBlock(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(Unknown Source)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(Unknown Source)
at com.sun.proxy.$Proxy1.addBlock(Unknown Source)
at org.apache.hadoop.hdfs.From.Code(Unknown Source)
at org.apache.hadoop.hdfs.From.F(Unknown Source)
at org.apache.hadoop.hdfs.From.F(Unknown Source)
at org.apache.hadoop.hdfs.The.run(Unknown Source)
Caused by: org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /user/frolo/input/pg132.txt could only be replicated to 0 nodes, instead of 1
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(Unknown Source)
at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(Unknown Source)
at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.ipc.RPC$Server.call(Unknown Source)
at org.apache.hadoop.ipc.rdma.madness.Code(Unknown Source)
at org.apache.hadoop.ipc.rdma.madness.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(Unknown Source)
at org.apache.hadoop.ipc.rdma.be.run(Unknown Source)
at org.apache.hadoop.ipc.rdma.RDMAClient.Code(Unknown Source)
at org.apache.hadoop.ipc.rdma.RDMAClient.call(Unknown Source)
at org.apache.hadoop.ipc.Tempest.invoke(Unknown Source)
... 12 more`
14/02/05 19:06:30 WARN hdfs.DFSClient: Error Recovery for null bad datanode[0] nodes == null
14/02/05 19:06:30 WARN hdfs.DFSClient: Could not get block locations. Source file "/user/frolo/input/pg132.txt" - Aborting...
14/02/05 19:06:30 INFO hdfs.DFSClient: exception in isClosed
Кажется, что данные не передаются в DataNodes, когда я начинаю копировать из локальной файловой системы в HDFS. Я проверил доступность DataNodes:
frolo@A11:~/hadoop-rdma-0.9.8> ./bin/hadoop dfsadmin -report Warning: $HADOOP_HOME is deprecated. Configured Capacity: 0 (0 KB) Present Capacity: 0 (0 KB) DFS Remaining: 0 (0 KB) DFS Used: 0 (0 KB) DFS Used%: �% Under replicated blocks: 0 Blocks with corrupt replicas: 0 Missing blocks: 0` ------------------------------------------------- Datanodes available: 0 (4 total, 4 dead)` `Name: 10.10.1.13:50010 Decommission Status : Normal Configured Capacity: 0 (0 KB) DFS Used: 0 (0 KB) Non DFS Used: 0 (0 KB) DFS Remaining: 0(0 KB) DFS Used%: 100% DFS Remaining%: 0% Last contact: Wed Feb 05 19:02:54 MSK 2014 Name: 10.10.1.14:50010 Decommission Status : Normal Configured Capacity: 0 (0 KB) DFS Used: 0 (0 KB) Non DFS Used: 0 (0 KB) DFS Remaining: 0(0 KB) DFS Used%: 100% DFS Remaining%: 0% Last contact: Wed Feb 05 19:02:54 MSK 2014 Name: 10.10.1.16:50010 Decommission Status : Normal Configured Capacity: 0 (0 KB) DFS Used: 0 (0 KB) Non DFS Used: 0 (0 KB) DFS Remaining: 0(0 KB) DFS Used%: 100% DFS Remaining%: 0% Last contact: Wed Feb 05 19:02:54 MSK 2014 Name: 10.10.1.11:50010 Decommission Status : Normal Configured Capacity: 0 (0 KB) DFS Used: 0 (0 KB) Non DFS Used: 0 (0 KB) DFS Remaining: 0(0 KB) DFS Used%: 100% DFS Remaining%: 0% Last contact: Wed Feb 05 19:02:55 MSK 2014
и попытался использовать mkdir в файловой системе HDFS, и это было успешно. Перезапуск демонов Hadoop не дал положительного эффекта.
Не могли бы вы помочь мне с этой проблемой? Спасибо.
С уважением, Алекс
