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CHUKWA-616. Updated release note and change log generation. (Eric Yang)
git-svn-id: 13f79535-47bb-0310-9956-ffa450edef68
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macroadster committed Dec 6, 2011
1 parent d15bb6d commit 2658fc6b522d18a15f7f68349f4f52c750dcce69
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@@ -104,6 +104,8 @@ Trunk (unreleased changes)


CHUKWA-616. Updated release note and change log generation. (Eric Yang)

CHUKWA-614. Updated parent iframe resize code. (Eric Yang)

CHUKWA-613. Removed Jersey 1.1 from source code library path. (Eric Yang)
@@ -194,7 +196,7 @@ Trunk (unreleased changes)

CHUKWA-478. Fixed TestSocketTee intermittent failure. (Chris Douglas via Eric Yang)

Chukwa 0.4
Release 0.4


18 pom.xml
@@ -619,6 +619,24 @@
<mkdir dir="${}/site" />
<exec executable="perl" input="CHANGES.txt" output="${}/site/changes.html" failonerror="true">
<arg value="src/site/resources/scripts/" />
<copy todir="${}/site">
<fileset dir="src/site/resources/css" includes="*.css" />
@@ -0,0 +1,45 @@
Release Notes - Hadoop Chukwa - Version 0.5

Overall Status

This is the third public release of Chukwa, a log analysis framework on top of Hadoop
and HBase. Chukwa has been tested at scale and used in some production settings, and
is reasonably robust and well behaved. For instructions on setting up Chukwa, see the
administration guide and the rest of the Chukwa documentation.

The collection components of Chukwa -- adaptors, agents, and collectors have been fairly
aggressively tested, and can be counted on to perform properly and recover from failures.

The demux pipeline has been cleaned up somewhat, and is now documented. See the programming
guide for a discussion of how to customize demux for your purposes.

HICC, the visualization component, is still "beta" quality. It's been used succesfully at
multiple sites, but work is ongoing.

Important Changes Since Last Release

* Chukwa can store data on HBase for improved random read/write performance.

* New addition of SocketAdaptor for streaming Log4JSocketAppender traffic.

* There have been a number of bug fixes and code cleanups since the last release;
check the changelog and JIRA for details.


Chukwa relies on Java 1.6, and requires maven 3.0.3 to build.
The back-end processing requires Hadoop, HBase 0.90.4+, and Pig 0.9.1+.

Known Limitations

* HICC defaults to assuming data is UTC; if your machines run on local time,
HICC graphs will not display properly until you change the HICC timezone.
You can do this by clicking the small "gear" icon on the time selection tool.

* As mentioned in the administration guide, the pig aggregation script requires
external scheduling in cronjob or Jenkins.

* Salsa Finite State Machine has not been ported forward to store data on HBase.

* There is currently no down sampling script for data stored on HBase. Long term
trending visualization might not work for large scale data.

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