> -----Original Message----- > From: André Warnier [mailto:a...@ice-sa.com] > Sent: Friday, April 11, 2014 9:27 AM > To: Tomcat Users List > Subject: Re: How to monitor performance of tomcat > > Jeffrey Janner wrote: > >> -----Original Message----- > >> From: Christopher Schultz [mailto:ch...@christopherschultz.net] > >> Sent: Friday, April 11, 2014 12:54 AM > >> To: Tomcat Users List > >> Subject: Re: How to monitor performance of tomcat > >> > >> All, > >> > >> On 4/8/14, 5:24 PM, Christopher Schultz wrote: > >>> Randir, > >>> > >>> On 4/8/14, 5:05 AM, Randhir Singh wrote: > >>>> We have an application which has JBoss as the application server > >> with > >>>> Tomcat as the web server, our application has Oracle 11g as the > >>>> database. I would give some further background to the issue we are > >>>> facing, since the last 1 1/2 months, the application slows down. > >>>> Sometimes it comes back to normal, specially on week-ends. But > >>>> other times we restart JBoss & Tomcat to bring back the > application > >>>> to normal. > >>>> We have been using jconsole to monitor tomcat like jconsole > >>>> 10.101.17.79:8891 which monitors our tomcat for a work order > >>>> system. If the memory usage does not show spike and shows constant > >>>> reading, the GC button is clicked to invoke the garbage collector. > >>> You should really never have to invoke the gc yourself. It gc isn't > >>> working properly by itself, you have a big problem. > >>> > >>>> I checked out on the net and got some clue as below: > >>>> 1) Javamelody - It seems to be a 3rd party tool which is not > >>>> recommended. > >>> Javamelody is just fine. What makes you think it's not > "recommended"? > >>> > >>>> 2) There is a command mentioned to see the admin console, > >>>> http://<IP:port>/ but it is not displaying the required page. > >>>> Please give your inputs whether jconsole should be a help in the > >>>> right direction or some other way to monitor the performance of > >>>> Tomcat. > >>> I suspect there's no chance you are in Denver for ApacheCon right > >> now, > >>> are you? I'm giving a presentation on it tomorrow. I'll post the > >>> slides later in the afternoon MDT. > >> > http://people.apache.org/~schultz/ApacheCon%20NA%202014/Monitoring%20 > >> Ap > >> ache%20Tomcat%20with%20JMX.odp > >> > >> There's a PDF version with borked slide-notes in that directory if > >> you can't read ODP. > >> > > Chris - > > The PDF file is not world readable. > > It gets worse : it's not even a PDF. > ;-) > Coffee, Jeffrey.
André - Perhaps you should get another cup. Make it expresso. Chris clearly states that there is *additionally* a PDF version, and that is the one that generates a permissions error. The ODP version downloads just fine, though PowerPoint complains about errors, it seems OK (I still perusing). I was trying to download the PDF version to use as a reference source for some of my less-technical staff. Jeff
