GitHub user liancheng opened a pull request:
https://github.com/apache/spark/pull/7994
[SPARK-9593] [SQL] [HOTFIX] Makes the Hadoop shims loading fix more robust
This is a follow-up of #7929.
We found that Jenkins SBT master build still fails because of the Hadoop
shims loading issue. But the failure doesn't appear to be deterministic. My
suspect is that Hadoop `VersionInfo` class may fail to inspect Hadoop version,
and the shims loading branch is skipped.
This PR tries to make the fix more robust:
1. When Hadoop version is available, we load `Hadoop20SShims` for versions
<= 2.0.x as @srowen suggested in PR #7929.
2. Otherwise, we use `Path.getPathWithoutSchemeAndAuthority` as a probe
method, which doesn't exist in Hadoop 1.x or 2.0.x. If this method is not
found, `Hadoop20SShims` is also loaded.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/liancheng/spark spark-9593/fix-hadoop-shims
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/7994.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 #7994
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commit 05ee9341b32e2213bb28c7fb76c391b4f23c8099
Author: Cheng Lian <[email protected]>
Date: 2015-08-06T12:22:02Z
Makes the Hadoop shims loading fix more robust
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