HADOOP-13087. env var doc update for dynamic commands
Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/90e285a2 Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/90e285a2 Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/90e285a2 Branch: refs/heads/HADOOP-12930 Commit: 90e285a2ad9135f9ab6435beb43730ba85067ccc Parents: 40d8f62 Author: Allen Wittenauer <[email protected]> Authored: Wed May 4 10:53:25 2016 -0700 Committer: Allen Wittenauer <[email protected]> Committed: Thu May 12 16:01:27 2016 -0700 ---------------------------------------------------------------------- .../src/site/markdown/UnixShellGuide.md | 22 ++++++++++++++++++++ 1 file changed, 22 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/hadoop/blob/90e285a2/hadoop-common-project/hadoop-common/src/site/markdown/UnixShellGuide.md ---------------------------------------------------------------------- diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/UnixShellGuide.md b/hadoop-common-project/hadoop-common/src/site/markdown/UnixShellGuide.md index 668a744..a459012 100644 --- a/hadoop-common-project/hadoop-common/src/site/markdown/UnixShellGuide.md +++ b/hadoop-common-project/hadoop-common/src/site/markdown/UnixShellGuide.md @@ -154,3 +154,25 @@ function hdfs_subcommand_fetchdt ``` ... will replace the existing `hdfs fetchdt` subcommand with a custom one. + +Some key environment variables related to Dynamic Subcommands: + +* HADOOP\_CLASSNAME + +This is the name of the Java class to execute. + +* HADOOP\_SHELL\_EXECNAME + +This is the name of the script that is being executed. It will be one of hadoop, hdfs, mapred, or yarn. + +* HADOOP\_SUBCMD\_SECURESERVICE + +If this command should/will be executed as a secure daemon, set this to true. + +* HADOOP\_SUBCMD\_SECUREUSER + +If this command should/will be executed as a secure daemon, set the user name to be used. + +* HADOOP\_SUBCMD\_SUPPORTDAEMONIZATION + +If this command can be executed as a daemon, set this to true. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
