createblockoutputstream java.io.ioexception中的异常:与firstbadlink的错误连接确认

hyrbngr7  于 2021-06-02  发布在  Hadoop
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知道我为什么会犯这个错误吗? 10.0.1.193 是我的一个从属虚拟机。

ubuntu@anmol-vm1-new:/home/hadoop/yarnpp$ hadoop fs -put tez-0.4.1-incubating/* /apps/tez-0.4.1-incubating 
15/11/30 02:53:28 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
15/11/30 02:54:40 INFO hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Bad connect ack with firstBadLink as 10.0.1.193:50010
    at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1367)
    at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1272)
    at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:525)
15/11/30 02:54:40 INFO hdfs.DFSClient: Abandoning BP-342182973-10.0.1.190-1448834909392:blk_1073741851_1028
15/11/30 02:54:40 INFO hdfs.DFSClient: Excluding datanode 10.0.1.193:50010
yv5phkfx

yv5phkfx1#

看起来防火墙正在阻止数据节点的通信。打开datanode机器上的以下端口(本例中为10.0.0.193)。

-A INPUT -p tcp -m state --state NEW -m tcp --dport 50010 -m comment --comment "Port 50010  datanode" -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 50020 -m comment --comment "Port 50020  datanode" -j ACCEPT

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