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


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


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