Repository: hadoop Updated Branches: refs/heads/branch-2 d9016b028 -> 5a002aef1 refs/heads/trunk a531b058a -> 025a3a8be
MAPREDUCE-6392. Document mapred class path options. Contributed by Brahma Reddy Battula. Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/025a3a8b Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/025a3a8b Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/025a3a8b Branch: refs/heads/trunk Commit: 025a3a8be07ba2b0c27ee39034b506d91aa486fc Parents: a531b05 Author: cnauroth <cnaur...@apache.org> Authored: Mon Jun 8 16:22:03 2015 -0700 Committer: cnauroth <cnaur...@apache.org> Committed: Mon Jun 8 16:22:03 2015 -0700 ---------------------------------------------------------------------- hadoop-mapreduce-project/CHANGES.txt | 3 +++ .../src/site/markdown/MapredCommands.md | 10 ++++++++-- 2 files changed, 11 insertions(+), 2 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/hadoop/blob/025a3a8b/hadoop-mapreduce-project/CHANGES.txt ---------------------------------------------------------------------- diff --git a/hadoop-mapreduce-project/CHANGES.txt b/hadoop-mapreduce-project/CHANGES.txt index 29191cd..115fc1b 100644 --- a/hadoop-mapreduce-project/CHANGES.txt +++ b/hadoop-mapreduce-project/CHANGES.txt @@ -343,6 +343,9 @@ Release 2.8.0 - UNRELEASED MAPREDUCE-6354. ShuffleHandler should be able to log shuffle connections (Chang Li via jlowe) + MAPREDUCE-6392. Document mapred class path options. + (Brahma Reddy Battula via cnauroth) + OPTIMIZATIONS BUG FIXES http://git-wip-us.apache.org/repos/asf/hadoop/blob/025a3a8b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/site/markdown/MapredCommands.md ---------------------------------------------------------------------- diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/site/markdown/MapredCommands.md b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/site/markdown/MapredCommands.md index 9ccee60..0a3c491 100644 --- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/site/markdown/MapredCommands.md +++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/site/markdown/MapredCommands.md @@ -55,9 +55,15 @@ Creates a hadoop archive. More information can be found at ### `classpath` -Prints the class path needed to get the Hadoop jar and the required libraries. +Usage: `yarn classpath [--glob |--jar <path> |-h |--help]` -Usage: `mapred classpath` +| COMMAND\_OPTION | Description | +|:---- |:---- | +| `--glob` | expand wildcards | +| `--jar` *path* | write classpath as manifest in jar named *path* | +| `-h`, `--help` | print help | + +Prints the class path needed to get the Hadoop jar and the required libraries. If called without arguments, then prints the classpath set up by the command scripts, which is likely to contain wildcards in the classpath entries. Additional options print the classpath after wildcard expansion or write the classpath into the manifest of a jar file. The latter is useful in environments where wildcards cannot be used and the expanded classpath exceeds the maximum supported command line length. ### `distcp`
