[jira] [Created] (HDFS-15733) Add seqno in log when BlockReceiver receive packet

[Haibin Huang (Jira)]

Haibin Huang created HDFS-15733:
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             Summary: Add seqno in log when BlockReceiver receive packet
                 Key: HDFS-15733
                 URL: https://issues.apache.org/jira/browse/HDFS-15733
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Haibin Huang
            Assignee: Haibin Huang


There is a debug log show when BlockReceiver receiving a new packet, however 
now we can't tell which packet this debug log belongs to, i think it would be 
better to add a sequence number in the log.

now the debug log like this, missing the seqno of packet 
{code:java}
2020-12-11,16:26:30,518 DEBUG org.apache.hadoop.hdfs.server.datanode.DataNode: 
Receiving one packet for block BP-XXX:blk_XXX: PacketHeader with packetLen=2559 
header data: offsetInBlock: 1
{code}



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