hi. I am using the JENNIFER 4. I noticed JENNIFER failed to receive data from its agent due to frequent Full GC before 00 time on JENNIFER server. When the time pass 00:00, such error disappeared. I enhanced the JVM Heap Memory to 10 GB (New 3GB) to secure much old area, but the identical error occurred frequently. I extracted the Heap Dump on Server before Full GC occurred, and noticed the below.
“com/javaservice/jennifer/util/ObjectLinkedList” inside the “com/javaservice/jennifer/server/AsyncStatisticsDBWorker$Sql10m,” 9 GB has been shared. (please refer to the attached file.)
My guess is that a few of performance information that has been saved on DB for 10 minutes continues to remain at memory until next 00:00. When 00:00 passed, it would become flushed. Quite many SQL have been initiated on our service. I would like to know if you have a way of deleting sql10m information from memory.
1. How to prevent keeping sql10 information from memory
2. How to delete sql10 information on a regular basis
3. Other ways