Be the first to like this
In many cases, the process uner inspection, hangs, stops responding to jmap, jstack, and we just lose the critical root-cause-analysis oppurtunity with a system restart.
Core dumps are a super a dump, it is snapshot of the processes state that gets dumped into file which can be later assessed, even debugged. Here is a doucment that explains how much we can do wiht core-dump to find out where the process was hung and hopefully why.
Guaranteed would come if system itslef hasn't crashed. Command to take core-dump varies platform to platform. For solaris, the following link explains it all