One option to check for is if THP is enabled on the node running HS2. If enable try disabling THP and see if it helps
# Disable THP echo never | sudo tee -a /sys/kernel/mm/transparent_hugepage/enabled echo never | sudo tee -a /sys/kernel/mm/transparent_hugepage/defrag Thanks Prasanth On Mar 13, 2018, at 5:32 PM, rajan sthapit <rajanstha...@gmail.com<mailto:rajanstha...@gmail.com>> wrote: Hi, I am currently trying to debug a memory leak in a HiveServer2 java process. The heap size for the jvm is set to 16GB. When I look at the heap usage it is well under 16 GB, However, if I look at the total memory consumed by the process(top command) it's more than 30 GB. Currently, I am trying to use pmap to see the memory consumption by the process. Here is the result of the pmap https://gist.github.com/anonymous/977b2ba8e7484d02dcec00a10439e516 It also shows that the process is consuming more than 30GB. However, it is not clear what is causing the process to consume more than 30GB. Any suggestion, on how I can debug this issue. The JVM heap memory usage seems to be fine. It is well under 16GB. However, the total process memory consumed by the java process is more than 30GB. Could you please recommend any tools/methods that I could use to debug this issue? Thanks
