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https://issues.apache.org/jira/browse/HDFS-9706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15119890#comment-15119890
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Yongjun Zhang commented on HDFS-9706:
-------------------------------------
Thanks Xiao for the new rev. One further suggestion is, we can put multiple
entries to the same line so we have fewer lines in the log, what about:
{code}
2016-01-27 09:34:12,849 [DataXceiver for client cl at /127.0.0.1:50088
[Receiving block BP-908057294-192.168.1.79-1453916050495:blk_1073741825_1001]]
DEBUG datanode.DataNode (BlockReceiver.java:<init>(189)) - BlockReceiver:
BP-908057294-192.168.1.79-1453916050495:blk_1073741825_1001
storageType=DISK, inAddr=/127.0.0.1:50088, myAddr=/127.0.0.1:50079,
stage=DATA_STREAMING, newGs=0, minBytesRcvd=1, maxBytesRcvd=1,
clientname=cl, srcDataNode=:0, datanode=127.0.0.1:50079
requestedChecksum=DataChecksum(type=CRC32C, chunkSize=512),
cachingStrategy=CachingStrategy(dropBehind=null, readahead=null)
allowLazyPersist=false, pinning=false, isClient=true, isDatanode=false,
responseInterval=30000
{code}
Thanks.
> Log more details in debug logs in BlockReceiver's constructor
> -------------------------------------------------------------
>
> Key: HDFS-9706
> URL: https://issues.apache.org/jira/browse/HDFS-9706
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Xiao Chen
> Assignee: Xiao Chen
> Priority: Minor
> Labels: supportability
> Attachments: HDFS-9706.01.patch, HDFS-9706.02.patch
>
>
> Currently {{BlockReceiver}}'s constructor has some debug logs to help
> identifying problems. During my triage of HDFS-9701, I needed to add the
> {{isTransfer}} into the logs to see which block the code goes later.
> I propose to add more details in the debug logs, to save future effort. Will
> also see whether more details need to be logged.
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