I installed  Accumulo using Cloudera 5.8.3 parcel manager, and activated (did not happen on the initial wizard but when button said "activate"  on the parcel summary it did activate afte rthat)  but I'm still getting this message. So, what is going on here... ... View more

I had a similar problem using Sqoop. Can someone RESPOND to this please? It's been awhile.   Here is my error message:   2016-11-03 10:07:50,534 WARN org.apache.hadoop.hdfs.BlockReaderFactory: I/O error constructing remote block reader. java.io.IOException: Got error for OP_READ_BLOCK, status=ERROR, self=/192.168.1.31:58178, remote=/192.168.1.34:50010, for file /user/(user profile name)/.staging/job_1478124814973_0001/libjars/commons-math-2.1.jar, for pool BP-15528599-192.168.1.31-1472851278753 block 1074078887_338652 at org.apache.hadoop.hdfs.RemoteBlockReader2.checkSuccess(RemoteBlockReader2.java:467) at org.apache.hadoop.hdfs.RemoteBlockReader2.newBlockReader(RemoteBlockReader2.java:432) at org.apache.hadoop.hdfs.BlockReaderFactory.getRemoteBlockReader(BlockReaderFactory.java:881) at org.apache.hadoop.hdfs.BlockReaderFactory.getRemoteBlockReaderFromTcp(BlockReaderFactory.java:759) at org.apache.hadoop.hdfs.BlockReaderFactory.build(BlockReaderFactory.java:376) at org.apache.hadoop.hdfs.DFSInputStream.blockSeekTo(DFSInputStream.java:662) at org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:889) at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:942) at java.io.DataInputStream.read(DataInputStream.java:100) at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:85) at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:59) at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:119) at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:369) at org.apache.hadoop.yarn.util.FSDownload.copy(FSDownload.java:265) at org.apache.hadoop.yarn.util.FSDownload.access$000(FSDownload.java:61) at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:359) at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:357) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693) at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:356) at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:60) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) 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) 2016-11-03 10:07:50,541 WARN org.apache.hadoop.hdfs.DFSClient: Failed to connect to /192.168.1.34:50010 for block, add to deadNodes and continue. java.io.IOException: Got error for OP_READ_BLOCK, status=ERROR, self=/192.168.1.31:58178, remote=/192.168.1.34:50010, for file /user/(user profile name)/.staging/job_1478124814973_0001/libjars/commons-math-2.1.jar, for pool BP-15528599-192.168.1.31-1472851278753 block 1074078887_338652 java.io.IOException: Got error for OP_READ_BLOCK, status=ERROR, self=/192.168.1.31:58178, remote=/192.168.1.34:50010, for file /user/(user profile name)/.staging/job_1478124814973_0001/libjars/commons-math-2.1.jar, for pool BP-15528599-192.168.1.31-1472851278753 block 1074078887_338652 at org.apache.hadoop.hdfs.RemoteBlockReader2.checkSuccess(RemoteBlockReader2.java:467) at org.apache.hadoop.hdfs.RemoteBlockReader2.newBlockReader(RemoteBlockReader2.java:432) at org.apache.hadoop.hdfs.BlockReaderFactory.getRemoteBlockReader(BlockReaderFactory.java:881) at org.apache.hadoop.hdfs.BlockReaderFactory.getRemoteBlockReaderFromTcp(BlockReaderFactory.java:759) at org.apache.hadoop.hdfs.BlockReaderFactory.build(BlockReaderFactory.java:376) at org.apache.hadoop.hdfs.DFSInputStream.blockSeekTo(DFSInputStream.java:662) at org.apache.hadoop.hdfs.DFSInputStream.readWithStrategy(DFSInputStream.java:889) at org.apache.hadoop.hdfs.DFSInputStream.read(DFSInputStream.java:942) at java.io.DataInputStream.read(DataInputStream.java:100) at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:85) at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:59) at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:119) at org.apache.hadoop.fs.FileUtil.copy(FileUtil.java:369) at org.apache.hadoop.yarn.util.FSDownload.copy(FSDownload.java:265) at org.apache.hadoop.yarn.util.FSDownload.access$000(FSDownload.java:61) at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:359) at org.apache.hadoop.yarn.util.FSDownload$2.run(FSDownload.java:357) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693) at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:356) at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:60) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) 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) 2016-11-03 10:07:50,543 INFO org.apache.hadoop.hdfs.DFSClient: Successfully connected to /192.168.1.33:50010 for BP-15528599-192.168.1.31-1472851278753:blk_1074078887_338652   While my Sqoop job (running sqoop 1) works this happens everytime I run a Sqoop job. My iptables is off, and port 50010 is listening on the server indicated. The node was added using the Cloudera wizard. Why is this happening and how does one fix it? ... View more