GitHub user jerryshao opened a pull request:
https://github.com/apache/spark/pull/8669
[SPARK-2960][Deploy] Support executing Spark from symlinks (reopen)
This PR is based on the work of @roji to support running Spark scripts from
symlinks. Thanks for the great work @roji . Would you mind taking a look at
this PR, thanks a lot.
For releases like HDP and others, normally it will expose the Spark
executables as symlinks and put in `PATH`, but current Spark's scripts do not
support finding real path from symlink recursively, this will make spark fail
to execute from symlink. This PR try to solve this issue by finding the
absolute path from symlink.
Instead of using `readlink -f` like what this PR
(https://github.com/apache/spark/pull/2386) implemented is that `-f` is not
support for Mac, so here manually seeking the path through loop.
I've tested with Mac and Linux (Cent OS), looks fine.
This PR did not fix the scripts under `sbin` folder, not sure if it needs
to be fixed also?
Please help to review, any comment is greatly appreciated.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/jerryshao/apache-spark SPARK-2960
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8669.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #8669
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commit 3cd2487ae651caeb081482e8b3f01592d9a38c9a
Author: Shay Rojansky <[email protected]>
Date: 2014-08-10T08:04:45Z
Support executing Spark from symlinks
The current scripts (e.g. pyspark) fail to run when they are
executed via symlinks. A common Linux scenario would be to have Spark
installed somewhere (e.g. /opt) and have a symlink to it in /usr/bin.
Fixed the scripts to traverse symlinks until reaching the actual binary.
commit 4fb2a0a8f5bb1d87fbe65726a51a15b7862a44c1
Author: jerryshao <[email protected]>
Date: 2015-09-09T09:08:40Z
:Make Spark script work with symlink
commit 69bde5ca9235f2bc90c73e2ff4177acf93eb03d1
Author: jerryshao <[email protected]>
Date: 2015-09-09T13:53:22Z
recover the comment
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