# Pastebin yL1ZCh4A
root@hadoop-master:~# echo "hi" >> hi.txt
root@hadoop-master:~# hdfs dfs -put hi.txt /paramhi
2018-11-15 07:21:08,210 INFO hdfs.DataStreamer: Exception in createBlockOutputStream blk_1073741945_1121
java.io.IOException: Got error, status=ERROR, status message , ack with firstBadLink as 10.0.0.67:9866
	at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:134)
	at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:110)
	at org.apache.hadoop.hdfs.DataStreamer.createBlockOutputStream(DataStreamer.java:1778)
	at org.apache.hadoop.hdfs.DataStreamer.nextBlockOutputStream(DataStreamer.java:1679)
	at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:716)
2018-11-15 07:21:08,216 WARN hdfs.DataStreamer: Abandoning BP-1392257786-172.17.0.2-1541773731988:blk_1073741945_1121
2018-11-15 07:21:08,233 WARN hdfs.DataStreamer: Excluding datanode DatanodeInfoWithStorage[10.0.0.67:9866,DS-d5e535df-45b8-4d19-a4b3-aa661517c916,DISK]
2018-11-15 07:21:08,496 INFO hdfs.DataStreamer: Exception in createBlockOutputStream blk_1073741946_1122
java.io.IOException: Got error, status=ERROR, status message , ack with firstBadLink as 10.0.0.65:9866
	at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:134)
	at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:110)
	at org.apache.hadoop.hdfs.DataStreamer.createBlockOutputStream(DataStreamer.java:1778)
	at org.apache.hadoop.hdfs.DataStreamer.nextBlockOutputStream(DataStreamer.java:1679)
	at org.apache.hadoop.hdfs.DataStreamer.run(DataStreamer.java:716)
2018-11-15 07:21:08,498 WARN hdfs.DataStreamer: Abandoning BP-1392257786-172.17.0.2-1541773731988:blk_1073741946_1122
2018-11-15 07:21:08,504 WARN hdfs.DataStreamer: Excluding datanode DatanodeInfoWithStorage[10.0.0.65:9866,DS-2d5d63e3-6b0b-4a0a-8dd3-a83d1b1dc8e7,DISK]