Responding to my own query.
I got this fixed. The solr startup was maintained by systemd script
which was configured with "PrivateTmp=true". I have changed that to
"PrivateTmp=false" and "/tmp/hsperfdata_/" is not removed
after server startup then jstack worked.
On 8/29/16 11:31 AM, Rallavag
I have run into a strange issue where "jstack -l " does not work. I
have tried this as the user that solr (5.4.1) is running as. I get
following error.
$ jstack -l 24064
24064: Unable to open socket file: target process not responding or
HotSpot VM not loaded
The -F option can be used when th
