Java 将数据复制到 HDFS 时 createBlockOutputStream 中的异常
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时间：2020-08-13 10:15:28 来源:igfitidea点击:
Exception in createBlockOutputStream when copying data into HDFS
提问by Naveen R
I am getting the below warning messages while copying the data into HDFS. I've 6 node cluster running. Every time during copy it ignores the two nodes and displays the below warning messages.
将数据复制到 HDFS 时，我收到以下警告消息。我有 6 个节点集群正在运行。每次复制期间，它都会忽略这两个节点并显示以下警告消息。
INFO hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Bad connect ack with firstBadLink as 192.168.226.136:50010
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1116)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1039)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:487)
13/11/04 05:02:15 INFO hdfs.DFSClient: Abandoning BP-603619794-127.0.0.1-1376359904614:blk_-7294477166306619719_1917
13/11/04 05:02:15 INFO hdfs.DFSClient: Excluding datanode 192.168.226.136:50010
Datanode logs
数据节点日志
2014-02-07 04:22:01,953 WARN org.apache.hadoop.hdfs.server.datanode.DataNode: IOException in offerService
java.io.IOException: Failed on local exception: java.io.IOException: Connection reset by peer; Host Details : local host is: "datanode4/192.168.226.136"; destination host is: "namenode":8020;
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:763)
at org.apache.hadoop.ipc.Client.call(Client.java:1235)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:202)
at sun.proxy.$Proxy10.sendHeartbeat(Unknown Source)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:164)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:83)
at sun.proxy.$Proxy10.sendHeartbeat(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolClientSideTranslatorPB.sendHeartbeat(DatanodeProtocolClientSideTranslatorPB.java:170)
at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.sendHeartBeat(BPServiceActor.java:441)
at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.offerService(BPServiceActor.java:521)
at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:673)
at java.lang.Thread.run(Thread.java:679)
Caused by: java.io.IOException: Connection reset by peer
at sun.nio.ch.FileDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:251)
at sun.nio.ch.IOUtil.read(IOUtil.java:224)
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:254)
at org.apache.hadoop.net.SocketInputStream$Reader.performIO(SocketInputStream.java:56)
at org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:143)
at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:156)
at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:129)
at java.io.FilterInputStream.read(FilterInputStream.java:133)
at java.io.FilterInputStream.read(FilterInputStream.java:133)
at org.apache.hadoop.ipc.Client$Connection$PingInputStream.read(Client.java:411)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:235)
at java.io.BufferedInputStream.read(BufferedInputStream.java:254)
at java.io.FilterInputStream.read(FilterInputStream.java:83)
at com.google.protobuf.AbstractMessageLite$Builder.mergeDelimitedFrom(AbstractMessageLite.java:276)
at com.google.protobuf.AbstractMessage$Builder.mergeDelimitedFrom(AbstractMessage.java:760)
at com.google.protobuf.AbstractMessageLite$Builder.mergeDelimitedFrom(AbstractMessageLite.java:288)
at com.google.protobuf.AbstractMessage$Builder.mergeDelimitedFrom(AbstractMessage.java:752)
at org.apache.hadoop.ipc.protobuf.RpcPayloadHeaderProtos$RpcResponseHeaderProto.parseDelimitedFrom(RpcPayloadHeaderProtos.java:985)
at org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:941)
at org.apache.hadoop.ipc.Client$Connection.run(Client.java:839)
2014-02-07 04:22:04,780 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: namenode/192.168.226.129:8020. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
2014-02-07 04:22:05,783 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: namenode/192.168.226.129:8020. Already tried 1 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
2014-02-07 04:22:06,785 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: namenode/192.168.226.129:8020. Already tried 2 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
2014-02-07 04:22:07,788 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: namenode/192.168.226.129:8020. Already tried 3 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
2014-02-07 04:22:08,791 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: namenode/192.168.226.129:8020. Already tried 4 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
2014-02-07 04:22:09,794 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: namenode/192.168.226.129:8020. Already tried 5 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
2014-02-07 04:22:10,796 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: namenode/192.168.226.129:8020. Already tried 6 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
2014-02-07 04:22:11,798 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: namenode/192.168.226.129:8020. Already tried 7 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
2014-02-07 04:22:12,802 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: namenode/192.168.226.129:8020. Already tried 8 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
2014-02-07 04:22:13,813 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: namenode/192.168.226.129:8020. Already tried 9 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS)
2014-02-07 04:22:13,818 WARN org.apache.hadoop.hdfs.server.datanode.DataNode: IOException in offerService
java.net.ConnectException: Call From datanode4/192.168.226.136 to namenode:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
I tried doing SSH from datanode to namenode it works. Can anyone please me this one.
我尝试从 datanode 到 namenode 执行 SSH，它可以工作。谁能取悦我这个。
Please let me know if you need any other details.
如果您需要任何其他详细信息，请告诉我。
回答by Hi_Im_Tim
You need to open up your TCP ports for the nodes that you cannot connect to.
您需要为无法连接的节点打开 TCP 端口。
Solution: Add TCP port range 0-65535 to the security group to fix the problem.
解决方案：将 TCP 端口范围 0-65535 添加到安全组以解决问题。
回答by ahikmat
Make sure to check firewall
确保检查防火墙
service iptables save
service iptables stop
chkconfig iptables off
服务 iptables 保存
服务 iptables 停止
chkconfig iptables 关闭
More details on this blog: http://ahikmat.blogspot.kr/2014/05/three-essential-things-to-do-while.html
有关此博客的更多详细信息：http: //ahikmat.blogspot.kr/2014/05/three-essential-things-to-do-while.html
