I'm learning that the tooling for the jvm covers a spectrum from pathetically broken to non-existent.
I've had some luck running jmap like "jmap -histo:live <pid>". Pipe it through head and run with watch, and you have a crude real-time monitor. E.g. running against the processing running from a SNAPSHOT uberjar: watch jmap -histo:live $(ps axu | grep SNA[P] | sed -e 's/ \+/\t/g' | cut -f2) \| head -40 On Tuesday, September 17, 2013 2:14:20 AM UTC-7, Joachim De Beule wrote: > > Dear Brian, > > Thanks for your reply. I tried to use jmap, unfortunately it fails: > > bash-3.2$ jmap -F -dump:file=heap.bin 58708 > Attaching to process ID 58708, please wait... > Debugger attached successfully. > Server compiler detected. > JVM version is 20.51-b01-457 > Dumping heap to heap.bin ... > Exception in thread "main" java.lang.reflect.InvocationTargetException > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at sun.tools.jmap.JMap.runTool(JMap.java:179) > at sun.tools.jmap.JMap.main(JMap.java:110) > Caused by: sun.jvm.hotspot.oops.UnknownOopException > > As for visualvm: it never seems to finish producing a heap dump :( > > Joachim. > -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
