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Posted to commits@beam.apache.org by mizitch <gi...@git.apache.org> on 2016/11/09 22:27:23 UTC
[GitHub] incubator-beam pull request #1327: [BEAM-840] Some minor changes and fixes f...
GitHub user mizitch opened a pull request:
https://github.com/apache/incubator-beam/pull/1327
[BEAM-840] Some minor changes and fixes for sorter module.
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Includes:
* Limit max memory for ExternalSorter and BufferedExternalSorter to 2047 MB to prevent int overflow within Hadoop's sorting library
* Fix int overflow for large memory values in InMemorySorter
* Add note about estimated disk use to README.MD
* Fix to make Hadoop's sorting library put all temp files under the specified directory
* Have Hadoop clean up the temp directory on exit
* Stop shading hadoop dependencies. Some context:
** The existing shading is broken (modules that depend on this one cannot use it successfully).
** Hadoop's use of reflection in several instances makes shading the dependency "in a good way" nearly impossible. It requires a couple of rather brittle hacks, and, for clients that depend on certain conflicting versions of hadoop these hacks can mean it doesn't meet its intended goal of preventing conflicts anyway.
** From what I can tell, there's no good way to shade this to make it universally usable, so leaving it unshaded seems like a reasonable default.
** Without shading Hadoop, this module can be successfully used from Beam's wordcount example (which actually does have pre-existing hadoop dependencies already).
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mizitch/incubator-beam sorter-gcs
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-beam/pull/1327.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 #1327
----
commit d07c4ce9349abac4d0c53223072f1c84a1dc98c6
Author: Mitch Shanklin <ms...@google.com>
Date: 2016-11-09T22:09:49Z
Some minor changes and fixes for sorter module. Includes:
* Limit max memory for ExternalSorter and BufferedExternalSorter to 2047 MB to prevent int overflow within Hadoop's sorting library
* Fix int overflow for large memory values in InMemorySorter
* Add note about estimated disk use to README.MD
* Fix to make Hadoop's sorting library put all temp files under the specified directory
* Have Hadoop clean up the temp directory on exit
* Stop shading hadoop dependencies. Some context:
** The existing shading is broken (modules that depend on this one cannot use it successfully).
** Hadoop's use of reflection in several instances makes shading the dependency "in a good way" nearly impossible. It requires a couple of rather brittle hacks, and, for clients that depend on certain conflicting versions of hadoop these hacks can mean it doesn't meet its intended goal of preventing conflicts anyway.
** From what I can tell, there's no good way to shade this to make it universally usable, so leaving it unshaded seems like a reasonable default.
** Without shading Hadoop, this module can be successfully used from Beam's wordcount example (which actually does have pre-existing hadoop dependencies already).
----
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[GitHub] incubator-beam pull request #1327: [BEAM-840] Some minor changes and fixes f...
Posted by asfgit <gi...@git.apache.org>.
Github user asfgit closed the pull request at:
https://github.com/apache/incubator-beam/pull/1327
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