GitHub user bzz opened a pull request:
https://github.com/apache/incubator-zeppelin/pull/558
ZEPPELIN-312: fix a bug with blocking websocket broadcast
### What is this PR for?
Fix the bug of Z, blocking broadcast to websocket connections.
### What type of PR is it?
Bug Fix
### Is there a relevant Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-312
### How should this be tested?
See JIRA
### Questions:
* Does the licenses files need update? No
* Is there breaking changes for older versions? No
* Does this needs documentation? No
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/bzz/incubator-zeppelin
fix/zeppelin-312-blocking-broadcast
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-zeppelin/pull/558.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 #558
----
commit 524c4017bab20a79859d6b36ace5a7debb253537
Author: Alexander Bezzubov <[email protected]>
Date: 2015-12-19T04:13:44Z
ZEPPELIN-312: refactoring ZeppelinServer to adhere Java naming conventions
commit 497a6cad361b78f659e026a9ebb18af267ecd843
Author: Alexander Bezzubov <[email protected]>
Date: 2015-12-21T06:34:01Z
ZEPPELIN-312: replace sync \w lock-free collection
Replacing synchronization though critical section over the collection of
sockets with the lock-free datastructure impl of
java.util.concurrent.ConcurrentLinkedQueue
Synchronization was used to avoid parallel collection modifications, as
the calls `.sendMessage()` in Jetty implementation of Websockets are
thread-safe and can proceed concurrently.
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