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https://issues.apache.org/jira/browse/HDFS-309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sho Shimauchi updated HDFS-309:
-------------------------------
Attachment: HDFS-309.txt
attached patch.
replay log will be generated like this:
{quote}
2012-02-25 19:40:30,768 DEBUG namenode.FSEditLogLoader
(FSEditLogLoader.java:loadEditRecords(118)) - Acquiring write lock to replay
edit log
2012-02-25 19:40:30,768 DEBUG namenode.FSEditLogLoader
(FSEditLogLoader.java:loadEditRecords(134)) - replaying edit log: LogSegmentOp
[opCode=OP_START_LOG_SEGMENT, txid=1]
2012-02-25 19:40:30,769 DEBUG namenode.FSEditLogLoader
(FSEditLogLoader.java:loadEditRecords(134)) - replaying edit log: SetGenstampOp
[genStamp=1001, opCode=OP_SET_GENSTAMP, txid=2]
2012-02-25 19:40:30,769 DEBUG namenode.FSEditLogLoader
(FSEditLogLoader.java:loadEditRecords(134)) - replaying edit log: AddOp
[length=0, path=/testfile, replication=1, mtime=1330166430268,
atime=1330166430268, blockSize=67108864, blocks=[],
permissions=sho:supergroup:rw-r--r--,
clientName=DFSClient_NONMAPREDUCE_1990794058_1, clientMachine=127.0.0.1,
opCode=OP_ADD, txid=3]
2012-02-25 19:40:30,771 DEBUG namenode.FSEditLogLoader
(FSEditLogLoader.java:loadEditRecords(134)) - replaying edit log: CloseOp
[length=0, path=/testfile, replication=1, mtime=1330166430481,
atime=1330166430268, blockSize=67108864, blocks=[blk_1906532225227800470_1001],
permissions=sho:supergroup:rw-r--r--, clientName=, clientMachine=,
opCode=OP_CLOSE, txid=4]
2012-02-25 19:40:30,771 DEBUG namenode.FSEditLogLoader
(FSEditLogLoader.java:loadEditRecords(134)) - replaying edit log: LogSegmentOp
[opCode=OP_END_LOG_SEGMENT, txid=5]
2012-02-25 19:40:30,771 DEBUG namenode.FSEditLogLoader
(FSEditLogLoader.java:loadEditRecords(436)) - replaying edit log finished
{quote}
> FSEditLog should log progress during replay
> -------------------------------------------
>
> Key: HDFS-309
> URL: https://issues.apache.org/jira/browse/HDFS-309
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Todd Lipcon
> Assignee: Sho Shimauchi
> Labels: newbie
> Attachments: HDFS-309.txt
>
>
> When the NameNode is replaying a long edit log, it's handy to have reports on
> how far through it is, so you can judge how much time it is remaining.
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