GitHub user uce opened a pull request:
https://github.com/apache/incubator-flink/pull/19
[FLINK-930] Netty Initialization is sometimes very slow
This is [FLINK-930](https://issues.apache.org/jira/browse/FLINK-930).
The issue with the Netty warning was reported in netty/netty#2412 and has
been fixed in `4.0.19.Final`. I couldn't reproduce the reported problem (with
and without the changes in this PR).
This PR contains the following changes:
1. Update Netty version from `4.0.19.Final` to `4.0.20.Final` and
2. Introduce `ExecutionMode` for TaskManagers, where in `LOCAL` mode the
`NetworkConnectionManager` is not started (e.g. no ServerSocket binding etc.)
The 2. change speeds up the startup and shutdown time of the TaskManagers
noticeably and solves/circumvents the reported problem with each test taking ~
3 seconds for startup/shutdown.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/uce/incubator-flink FLINK-930
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-flink/pull/19.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 #19
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commit a0d3530aa137290bf2d690339bf028f272c12129
Author: uce <[email protected]>
Date: 2014-06-13T08:41:32Z
[FLINK-930] Netty Initialization is sometimes very slow
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