Re: FW: Please help for a query in Tomcat. - Problem : Tomcat gets hanged

2005-02-17 Thread Antony Paul
You can try modifiying the maxProcessors in the connector  element in
conf/server.xml to a higher value to test whether increasing no of
threads solve the problem.

Post Tomcat , Java VM and OS versions.

rgds
Antony Paul


On Fri, 18 Feb 2005 10:14:15 +0530, Reshma Bhatia
[EMAIL PROTECTED] wrote:
 
 
  -Original Message-
 From:   Reshma Bhatia [mailto:[EMAIL PROTECTED]
 Sent:   Thursday, February 17, 2005 7:36 PM
 To: '[EMAIL PROTECTED]'
 Subject:Please help for a query in Tomcat. - Problem : Tomcat gets 
 hanged
 
 Hi,
 
 We have designed an application which works in Java JSP - Tomcat - Oracle
 environment.
 
 Our JSP page has two frames.
 1). First frame : This is the top frame containing links (displayed as Tabs)
 2). Second Frame : This is below the top frame and is updated with the
 selected link.
 
 For each click on the link a request is submitted and the response is
 populated in the second frame.
 The second frame contains a search criteria and fetches data from the
 database.
 
 Conditions when Tomcat hangs
 1). When we try clicking on the links very fast
 2). While the data is being fetched from the database and manipulated and if
 we click on other the links the server gets hang.
 
 Our analysis and understanding is :
 There would be some threads (requests) whose output was not allowed to be
 displayed in the second frame due to click on other links which would spawn
 another request for the same target.
 These requests remain in Service state as understood from the
 Tomcat-Manager status.
 Also, as per the information given on the link
 http://forum.java.sun.com/thread.jspa?threadID=454684messageID=2072194
 these requests would always remain in Service State.
 
 Please confirm whether our understanding is correct.
 Please provide a solution to this problem? Let us know in case any further
 information is needed.
 
 Thanks and regards,
 Reshma
 
 http://www.patni.com
 World-Wide Partnerships. World-Class Solutions.
 _
 
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RE: FW: Please help for a query in Tomcat. - Problem : Tomcat gets hanged

2005-02-17 Thread Reshma Bhatia
Is there a way to kill the Tomcat threads which have gone into infinite loop
/ hang state.

-Original Message-
From: Antony Paul [mailto:[EMAIL PROTECTED]
Sent: Friday, February 18, 2005 10:26 AM
To: Tomcat Users List; [EMAIL PROTECTED]
Subject: Re: FW: Please help for a query in Tomcat. - Problem : Tomcat gets
hanged


You can try modifiying the maxProcessors in the connector  element in
conf/server.xml to a higher value to test whether increasing no of
threads solve the problem.

Post Tomcat , Java VM and OS versions.

rgds
Antony Paul


On Fri, 18 Feb 2005 10:14:15 +0530, Reshma Bhatia
[EMAIL PROTECTED] wrote:


  -Original Message-
 From:   Reshma Bhatia [mailto:[EMAIL PROTECTED]
 Sent:   Thursday, February 17, 2005 7:36 PM
 To: '[EMAIL PROTECTED]'
 Subject:Please help for a query in Tomcat. - Problem : Tomcat gets
hanged

 Hi,

 We have designed an application which works in Java JSP - Tomcat - Oracle
 environment.

 Our JSP page has two frames.
 1). First frame : This is the top frame containing links (displayed as
Tabs)
 2). Second Frame : This is below the top frame and is updated with the
 selected link.

 For each click on the link a request is submitted and the response is
 populated in the second frame.
 The second frame contains a search criteria and fetches data from the
 database.

 Conditions when Tomcat hangs
 1). When we try clicking on the links very fast
 2). While the data is being fetched from the database and manipulated and
if
 we click on other the links the server gets hang.

 Our analysis and understanding is :
 There would be some threads (requests) whose output was not allowed to be
 displayed in the second frame due to click on other links which would
spawn
 another request for the same target.
 These requests remain in Service state as understood from the
 Tomcat-Manager status.
 Also, as per the information given on the link
 http://forum.java.sun.com/thread.jspa?threadID=454684messageID=2072194
 these requests would always remain in Service State.

 Please confirm whether our understanding is correct.
 Please provide a solution to this problem? Let us know in case any further
 information is needed.

 Thanks and regards,
 Reshma

 http://www.patni.com
 World-Wide Partnerships. World-Class Solutions.
 _

 This e-mail message may contain proprietary, confidential or legally
 privileged information for the sole use of the person or entity to
 whom this message was originally addressed. Any review, e-transmission
 dissemination or other use of or taking of any action in reliance upon
 this information by persons or entities other than the intended
 recipient is prohibited. If you have received this e-mail in error
 kindly delete  this e-mail from your records. If it appears that this
 mail has been forwarded to you without proper authority, please notify
 us immediately at [EMAIL PROTECTED] and delete this mail.
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_

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Re: FW: Please help for a query in Tomcat. - Problem : Tomcat gets hanged

2005-02-17 Thread Antony Paul
To best of my knowledge you can't. Even if you shutdown Tomcat it will
wait till the threads finish their work.

rgds
Antony Paul


On Fri, 18 Feb 2005 11:41:04 +0530, Reshma Bhatia
[EMAIL PROTECTED] wrote:
 Is there a way to kill the Tomcat threads which have gone into infinite loop
 / hang state.
 
 -Original Message-
 From: Antony Paul [mailto:[EMAIL PROTECTED]
 Sent: Friday, February 18, 2005 10:26 AM
 To: Tomcat Users List; [EMAIL PROTECTED]
 Subject: Re: FW: Please help for a query in Tomcat. - Problem : Tomcat gets
 hanged
 
 You can try modifiying the maxProcessors in the connector  element in
 conf/server.xml to a higher value to test whether increasing no of
 threads solve the problem.
 
 Post Tomcat , Java VM and OS versions.
 
 rgds
 Antony Paul
 
 On Fri, 18 Feb 2005 10:14:15 +0530, Reshma Bhatia
 [EMAIL PROTECTED] wrote:
 
 
   -Original Message-
  From:   Reshma Bhatia [mailto:[EMAIL PROTECTED]
  Sent:   Thursday, February 17, 2005 7:36 PM
  To: '[EMAIL PROTECTED]'
  Subject:Please help for a query in Tomcat. - Problem : Tomcat gets
 hanged
 
  Hi,
 
  We have designed an application which works in Java JSP - Tomcat - Oracle
  environment.
 
  Our JSP page has two frames.
  1). First frame : This is the top frame containing links (displayed as
 Tabs)
  2). Second Frame : This is below the top frame and is updated with the
  selected link.
 
  For each click on the link a request is submitted and the response is
  populated in the second frame.
  The second frame contains a search criteria and fetches data from the
  database.
 
  Conditions when Tomcat hangs
  1). When we try clicking on the links very fast
  2). While the data is being fetched from the database and manipulated and
 if
  we click on other the links the server gets hang.
 
  Our analysis and understanding is :
  There would be some threads (requests) whose output was not allowed to be
  displayed in the second frame due to click on other links which would
 spawn
  another request for the same target.
  These requests remain in Service state as understood from the
  Tomcat-Manager status.
  Also, as per the information given on the link
  http://forum.java.sun.com/thread.jspa?threadID=454684messageID=2072194
  these requests would always remain in Service State.
 
  Please confirm whether our understanding is correct.
  Please provide a solution to this problem? Let us know in case any further
  information is needed.
 
  Thanks and regards,
  Reshma
 
  http://www.patni.com
  World-Wide Partnerships. World-Class Solutions.
  _
 
  This e-mail message may contain proprietary, confidential or legally
  privileged information for the sole use of the person or entity to
  whom this message was originally addressed. Any review, e-transmission
  dissemination or other use of or taking of any action in reliance upon
  this information by persons or entities other than the intended
  recipient is prohibited. If you have received this e-mail in error
  kindly delete  this e-mail from your records. If it appears that this
  mail has been forwarded to you without proper authority, please notify
  us immediately at [EMAIL PROTECTED] and delete this mail.
  _
 
 
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  To unsubscribe, e-mail: [EMAIL PROTECTED]
  For additional commands, e-mail: [EMAIL PROTECTED]
 
 
 
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 To unsubscribe, e-mail: [EMAIL PROTECTED]
 For additional commands, e-mail: [EMAIL PROTECTED]
 
 http://www.patni.com
 World-Wide Partnerships. World-Class Solutions.
 _
 
 This e-mail message may contain proprietary, confidential or legally
 privileged information for the sole use of the person or entity to
 whom this message was originally addressed. Any review, e-transmission
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RE: FW: Please help for a query in Tomcat. - Problem : Tomcat gets hanged

2005-02-17 Thread Caldarale, Charles R
 From: Antony Paul [mailto:[EMAIL PROTECTED]
 Subject: Re: FW: Please help for a query in Tomcat. - Problem : Tomcat gets 
 hanged
 
 To best of my knowledge you can't. Even if you shutdown Tomcat it will
 wait till the threads finish their work.

Not quite true.  You can use the kill command on UNIX/Linux to terminate the 
process, or in Windows, CTRL-c to stop the .bat file, or the Services console 
to stop the service, or Task Manager to terminate almost anything.

 - Chuck


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