Slimming of Maven dependency tree - improves assembly build speed,
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Key: HBASE-2334
URL: https://issues.apache.org/jira/browse/HBASE-2334
Project: Hadoop HBase
Issue Type: Improvement
Components: build
Affects Versions: 0.20.1
Reporter: Paul Smith
Attachments: hbase-dependency-tidy-1.patch
>From a discussion on IRC, the Maven assembly speed is pretty bad, this is
>likely due to http://jira.codehaus.org/browse/MASSEMBLY-424 (process fork per
>dependency, ouch).
Slimming the dependency tree will not only make the generated assembly more
compact, it can speed up the build process.
Will attach patch to propose slimming the dependencies based on stacks comments
on the mailing list:
{quote}
Here is a list of things I found in lib that we don't need to run:
-rwsrwsrwt 1 Stack staff 1034049 Mar 16 16:45 ant-1.6.5.jar
-rwsrwsrwt 1 Stack staff 279781 Mar 16 16:45 commons-httpclient-3.0.1.jar
-rwsrwsrwt 1 Stack staff 706710 Mar 16 16:45 hsqldb-1.8.0.10.jar
-rwsrwsrwt 1 Stack staff 377780 Mar 16 16:45 jets3t-0.7.1.jar
-rwsrwsrwt 1 Stack staff 11981 Mar 16 16:45 kfs-0.3.jar
-rwsrwsrwt 1 Stack staff 388864 Mar 16 16:45 mail-1.4.jar
-rwsrwsrwt 1 Stack staff 65261 Mar 16 16:45 oro-2.0.8.jar
-rwsrwsrwt 1 Stack staff 28415 Mar 16 16:45 paranamer-1.5.jar
-rwsrwsrwt 1 Stack staff 3067 Mar 16 16:45 paranamer-ant-1.5.jar
-rwsrwsrwt 1 Stack staff 6841 Mar 16 16:45 paranamer-generator-1.5.jar
-rwsrwsrwt 1 Stack staff 167436 Mar 16 16:45 qdox-1.9.1.jar
-rwsrwsrwt 1 Stack staff 23445 Mar 16 16:45 slf4j-api-1.5.8.jar
-rwsrwsrwt 1 Stack staff 9679 Mar 16 16:45 slf4j-log4j12-1.5.8.jar
-rwsrwsrwt 1 Stack staff 7585 Mar 16 16:45 slf4j-simple-1.5.8.jar
To add exclusions, I need to add the exclusion on the dependency that
adds in the above? For most of the above, it looks like hadoop is the
includer. I'd look at its pom and figure which hadoop component
included the above and then add an exclusion in our pom on that
dependency?
{quote}
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