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https://issues.apache.org/jira/browse/HBASE-2889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12907829#action_12907829
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Andrew Purtell commented on HBASE-2889:
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@Jeff: HBASE-2055 is open for that. It's been a while, perhaps we can circle
back to it soon.
> Tool to look at HLogs -- parse and tail -f
> ------------------------------------------
>
> Key: HBASE-2889
> URL: https://issues.apache.org/jira/browse/HBASE-2889
> Project: HBase
> Issue Type: Bug
> Components: wal
> Reporter: stack
> Assignee: stack
> Fix For: 0.90.0
>
> Attachments: 2889.txt
>
>
> We need a tool for looking at wals. A tail -f would be sweet though it might
> be ugly having to open each time it wants to dump next lot of edits out wal
> log.
> From Kannan:
> {code}20:45 <kannan> WALEdit already has a toString().
> 20:46 <kannan> And append/sync support allows you to read concurrently a file
> that is being written too... (like JDs replication).
> 20:46 <kannan> So it would be good if I could do a bin/hbase hlogprint -f
> hdfs://...../.logs/<filename> -v -p
> 20:46 <kannan> much like the HFile pretty printer... except the HLog one is
> effectively a tail -f.
> {code}
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