Graylog2/graylog2-server — pull request #59 by joschi (2011-11-06 19:33:22+00:00)
Title: Introduced threadsafe data structures for ChunkedGELFClientManager

Changed data structures used in ChunkedGELFClientManager and ChunkedGELFClientManagerThread to classes from `java.util.concurrent` (`ConcurrentMap` and `ConcurrentHashMap`, see http://download.oracle.com/javase/tutorial/essential/concurrency/collections.html) since potentially more than one thread at once will access them.

This should fix SERVER-30 (http://jira.graylog2.org/browse/SERVER-30).