捕获tomcat转储时出现“内存不足或特权不足”

Question

I tried to capture the tomcat process dump with jmap , however I got the error " Insufficient memory or insufficient privileges to attach" , obviously there is enough memory, and the currently login user is in the role local administrator group. If I run the cmd command as administrator, it still failed.

C:\Program Files\Java\jdk1.7.0_71\bin>jmap.exe -dump:format=b,file=d:\temp\HeapD
ump.hprof 30452
30452: Insufficient memory or insufficient privileges to attach
The -F option can be used when the target process is not responding

Answer 1

I ran into a similar scenario where we were running a jetty server wrapped as a windows service and I wanted to take a memory dump of it. I think most of the answers elsewhere on SO deals with situations where the process you want to take a dump of is not running as a windows service. This link helped.

Download PsExec and run jmap like this:

<path to psexec>PsExec.exe -s "C:\\Program Files\\Java\\jd k1.8.0_131\\bin\\jmap.exe" -dump:file=<filename> <processid>