[root@node01 servers]# ./hadoop-2.7.5/bin/hdfs dfs -put test.txt /input
20/08/10 22:28:42 INFO hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as 192.168.1.9:50010
at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
at org.apache.hadoop.hdfs.DFSOutputStream D a t a S t r e a m e r . c r e a t e B l o c k O u t p u t S t r e a m ( D F S O u t p u t S t r e a m . j a v a : 1482 ) a t o r g . a p a c h e . h a d o o p . h d f s . D F S O u t p u t S t r e a m DataStreamer.createBlockOutputStream(DFSOutputStream.java:1482) at org.apache.hadoop.hdfs.DFSOutputStream DataStreamer.createBlockOutputStream(DFSOutputStream.java:1482)atorg.apache.hadoop.hdfs.DFSOutputStreamDataStreamer.nextBlockOutputStream(DFSOutputStream.java:1385)
at org.apache.hadoop.hdfs.DFSOutputStream D a t a S t r e a m e r . r u n ( D F S O u t p u t S t r e a m . j a v a : 554 ) 20 / 08 / 1022 : 28 : 42 I N F O h d f s . D F S C l i e n t : A b a n d o n i n g B P − 180482463 − 192.168.1.8 − 1588893747062 : b l k 1 07374183 1 1 00720 / 08 / 1022 : 28 : 42 I N F O h d f s . D F S C l i e n t : E x c l u d i n g d a t a n o d e D a t a n o d e I n f o W i t h S t o r a g e [ 192.168.1.9 : 50010 , D S − b 84 e f 1 d c − 6 e a c − 49 b 0 − b b c 7 − 822 e 5809 f 69 a , D I S K ] 20 / 08 / 1022 : 28 : 42 I N F O h d f s . D F S C l i e n t : E x c e p t i o n i n c r e a t e B l o c k O u t p u t S t r e a m j a v a . i o . I O E x c e p t i o n : G o t e r r o r , s t a t u s m e s s a g e , a c k w i t h f i r s t B a d L i n k a s 192.168.1.10 : 50010 a t o r g . a p a c h e . h a d o o p . h d f s . p r o t o c o l . d a t a t r a n s f e r . D a t a T r a n s f e r P r o t o U t i l . c h e c k B l o c k O p S t a t u s ( D a t a T r a n s f e r P r o t o U t i l . j a v a : 140 ) a t o r g . a p a c h e . h a d o o p . h d f s . D F S O u t p u t S t r e a m DataStreamer.run(DFSOutputStream.java:554) 20/08/10 22:28:42 INFO hdfs.DFSClient: Abandoning BP-180482463-192.168.1.8-1588893747062:blk_1073741831_1007 20/08/10 22:28:42 INFO hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[192.168.1.9:50010,DS-b84ef1dc-6eac-49b0-bbc7-822e5809f69a,DISK] 20/08/10 22:28:42 INFO hdfs.DFSClient: Exception in createBlockOutputStream java.io.IOException: Got error, status message , ack with firstBadLink as 192.168.1.10:50010 at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140) at org.apache.hadoop.hdfs.DFSOutputStream DataStreamer.run(DFSOutputStream.java:554)20/08/1022:28:42INFOhdfs.DFSClient:AbandoningBP−180482463−192.168.1.8−1588893747062:blk1​0737418311​00720/08/1022:28:42INFOhdfs.DFSClient:ExcludingdatanodeDatanodeInfoWithStorage[192.168.1.9:50010,DS−b84ef1dc−6eac−49b0−bbc7−822e5809f69a,DISK]20/08/1022:28:42INFOhdfs.DFSClient:ExceptionincreateBlockOutputStreamjava.io.IOException:Goterror,statusmessage,ackwithfirstBadLinkas192.168.1.10:50010atorg.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)atorg.apache.hadoop.hdfs.DFSOutputStreamDataStreamer.createBlockOutputStream(DFSOutputStream.java:1482)
at org.apache.hadoop.hdfs.DFSOutputStream D a t a S t r e a m e r . n e x t B l o c k O u t p u t S t r e a m ( D F S O u t p u t S t r e a m . j a v a : 1385 ) a t o r g . a p a c h e . h a d o o p . h d f s . D F S O u t p u t S t r e a m DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1385) at org.apache.hadoop.hdfs.DFSOutputStream DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1385)atorg.apache.hadoop.hdfs.DFSOutputStreamDataStreamer.run(DFSOutputStream.java:554)
20/08/10 22:28:42 INFO hdfs.DFSClient: Abandoning BP-180482463-192.168.1.8-1588893747062:blk_1073741832_1008
20/08/10 22:28:42 INFO hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[192.168.1.10:50010,DS-8bfe69be-dc25-4a35-b2bf-c435847af4ba,DISK]

出现上述情况，一般都是没有关闭防火墙或者没有开通对应端口造成的。

#查看防火墙状态
systemctl status firewalld.service
#关闭防火墙
systemctl stop firewalld.service
#禁止开机启动
systemctl disable firewalld.service