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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11864) Enhance HLogPrettyPrinter to print information from WAL Header
Date Wed, 08 Apr 2015 02:29:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11864?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14484580#comment-14484580
] 

Ted Yu commented on HBASE-11864:
--------------------------------

>From https://builds.apache.org/job/PreCommit-HBASE-Build/13606//testReport/org.apache.hadoop.hbase/TestAcidGuarantees/testMixedAtomicity/:
{code}
Caused by: java.lang.ClassNotFoundException: org.apache.htrace.HTraceConfiguration
	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	... 51 more
{code}
Not sure why htrace wasn't found.

> Enhance HLogPrettyPrinter to print information from WAL Header
> --------------------------------------------------------------
>
>                 Key: HBASE-11864
>                 URL: https://issues.apache.org/jira/browse/HBASE-11864
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 2.0.0
>            Reporter: Ted Yu
>            Priority: Minor
>              Labels: wal
>         Attachments: enhanced_log_printer_V1.txt, enhanced_log_printer_V1_1.txt, screenshot-1.png
>
>
> HBASE-11620 and HBASE-11762 added Writer classname and Cell Codec classname to WALHeader.
> This issue is to enhance HLogPrettyPrinter such that it prints the classnames, if such
information is available in WALHeader.



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