Process Collector_Manager has run out of memory

[lihwern]

I have a Sentinel RD server with 16GB RAM. Initially, it is working fine. However, after configuring a sentinel link collector to receive a fair amount of logs from sentinel log manager, the Sentinel RD Live View shows the Sentinel RD collector manager in "unknown" and "Warning" state (refer attachment). The status remains the same after restarting sentinel RD.

After checking the /opt/novell/sentinel6_rd_x86-64/log/sentinel0.0.log, I notice the follow error (a memory dump is also created)

"Process Collector_Manager has run out of memory, renaming dump file Collector_Manager.hprof to MemoryDump20091022152506Collector_Manager.hprof"

It seems the collector manager in Sentinel RD is running out of memory. But, that server has 16GB of RAM!

I also notice /opt/novell/sentinel6_rd_x86-64/log/setmemory.log shows
Total Memory = 16295920 (KB)

JAVA_MEM_ACTIVEMQ = 512 (MB)

JAVA_MEM_TOMCAT = 256 (MB)

JAVA_MEM_DAS_CORE = 1024 (MB)

JAVA_MEM_DAS_BINARY = 512 (MB)

JAVA_MEM_CORRELATION = 512 (MB)

JAVA_MEM_COLLECTOR_MANAGER = 320 (MB)

Does it mean the collector manager is only allocated 320MB of memory?
If that's the case, how do I adjust the memory allocation?