[HADOOP-10787] Rename/remove non-HADOOP_*, etc from the shell scripts

• Type: Improvement
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha1
• Fix Version/s: 3.0.0-alpha1
• Component/s: scripts
• Labels: scripts
• Hadoop Flags: Incompatible change

Release Note

<!-- markdown -->
The following shell environment variables have been deprecated:

| Old | New |
|:---- |:---- |
| DEFAULT\_LIBEXEC\_DIR | HADOOP\_DEFAULT\_LIBEXEC\_DIR |
| SLAVE\_NAMES | HADOOP\_SLAVE\_NAMES |
| TOOL\_PATH | HADOOP\_TOOLS\_PATH |

In addition:

* DEFAULT\_LIBEXEC\_DIR will NOT be automatically transitioned to HADOOP\_DEFAULT\_LIBEXEC\_DIR and will require changes to any scripts setting that value. A warning will be printed to the screen if DEFAULT\_LIBEXEC\_DIR has been configured.
* HADOOP\_TOOLS\_PATH is now properly handled as a multi-valued, Java classpath-style variable. Prior, multiple values assigned to TOOL\_PATH would not work a predictable manner.

• Assignee: Allen Wittenauer
• Reporter: Allen Wittenauer
• Created: 06/Jul/14 15:35
• Updated: 12/May/16 18:26
• Resolved: 04/Nov/15 10:27

Description

We should make an effort to clean up the shell env var name space by removing unsafe variables. See comments for list.

Issue Links

• blocks: HADOOP-12366 expose calculated paths
• is blocked by: HADOOP-10788 Rewrite kms to use new shell framework
• is blocked by: HADOOP-11460 Deprecate shell vars
• is related to: HADOOP-11010 Post-9902 "Umbrella" JIRA