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Strange processes
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Strange processes
by Hehl, Thomas
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I am running a tomcat instance on a server with a webapp we
manufactured. This is being connected to from Apache httpd using the tomcat connecter. What I don't understand is that every time someone hits our site, tomcat spawns several more processes and they never go away. This same tomcat and webapp are currently running on nearly 40 servers and they all only have two processes except this one that spawns about 8 processes with every hit. I am running Redhat linux and tomcat 6.0.13. I am negotiating to get tomcat upgraded, but don't have any other ideas. Does anyone have any advice for me? |
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Re: Strange processes
by Mikolaj Rydzewski-2
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Hehl, Thomas wrote:
> What I don't understand is that every time someone hits our site, tomcat > spawns several more processes and they never go away. This same tomcat > and webapp are currently running on nearly 40 servers and they all only > have two processes except this one that spawns about 8 processes with > every hit. > Some linux kernels / JDKs shows java threads as separate processes. Check pstree output and java thread dump (kill -3 <TOMCAT_PID>). -- Mikolaj Rydzewski <miki@...> --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@... For additional commands, e-mail: users-help@... |
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RE: Strange processes
by Hehl, Thomas
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OK, but these servers are all identical. Why would one do this and the
rest not? I don't have direct access to this server, but will try what you suggest. -----Original Message----- From: Mikolaj Rydzewski [mailto:miki@...] Sent: Thursday, November 05, 2009 1:41 PM To: Tomcat Users List Subject: Re: Strange processes Hehl, Thomas wrote: > What I don't understand is that every time someone hits our site, tomcat > spawns several more processes and they never go away. This same tomcat > and webapp are currently running on nearly 40 servers and they all only > have two processes except this one that spawns about 8 processes with > every hit. > Some linux kernels / JDKs shows java threads as separate processes. Check pstree output and java thread dump (kill -3 <TOMCAT_PID>). -- Mikolaj Rydzewski <miki@...> --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@... For additional commands, e-mail: users-help@... --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@... For additional commands, e-mail: users-help@... |
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Re: Strange processes
by Christopher Schultz-2
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1 Thomas, On 11/5/2009 1:44 PM, Hehl, Thomas wrote: > OK, but these servers are all identical. Why would one do this and the > rest not? Your previous statement seems to be in conflict with your observations. Something must be different: kernel version? 'ps' version? - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkrzNlcACgkQ9CaO5/Lv0PDU4QCghxDkj0I0odQjaDs6OlqWQ2Jx nUoAoJ1OfGcDbDSRUEFqmJwiQ/7DCxOW =h03X -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@... For additional commands, e-mail: users-help@... |
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RE: Strange processes
by Hehl, Thomas
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OK, not identical. But they are the same linux version and have the same
versions of all of the software that I'm using. Obviously there is some difference between them. -----Original Message----- From: Christopher Schultz [mailto:chris@...] Sent: Thursday, November 05, 2009 3:32 PM To: Tomcat Users List Subject: Re: Strange processes * PGP Signed by an unknown key Thomas, On 11/5/2009 1:44 PM, Hehl, Thomas wrote: > OK, but these servers are all identical. Why would one do this and the > rest not? Your previous statement seems to be in conflict with your observations. Something must be different: kernel version? 'ps' version? -chris * Unknown Key * 0xF2EFD0F0(L) --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@... For additional commands, e-mail: users-help@... --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@... For additional commands, e-mail: users-help@... |
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