ganglia/monitor-core — pull request #52 by satterly (2012-09-19 21:08:54+00:00)
Title: Add additional thread mutex lock for hostdata hashtable

A mutex was required on the hostdata hashtable to prevent a possible
race condition where new metrics are added to the hashtable or old
metrics are expired (via dmax) while the metrics for a host are
being output by the TCP thread.