Re: [Lift] Handle OOM
Jim Barrows jim.barr...@gmail.com writes: That would require memory allocation etc to do so. Which is of course, a problem at this point. But you can allocate some baloon memory at startup and free this on the OOM if you must do some cleanup in the app. I've not used this in a multi threaded server setting so don't know how well it works there /Jeppe -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
Re: [Lift] Handle OOM
On Tue, Feb 2, 2010 at 9:18 PM, David Pollak feeder.of.the.be...@gmail.comwrote: On Tue, Feb 2, 2010 at 5:49 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Hmm... Can the code catch the exception and try to execute a script that restarts it? :) The Sun JVM has the following flag: -XX:OnOutOfMemoryError=script_to_execute This will allow an auto-restart. Oh, very cool. I didn't know that. On Tue, Feb 2, 2010 at 8:43 PM, Jim Barrows jim.barr...@gmail.comwrote: Not generally within your code no. The VM is out of memory, not the webapp, so the VM has to be restarted. However you could have a nagios other monitoring service auto-restart in such cases. On the other hand... you really shouldn't be getting a OOM error in Java... On Tue, Feb 2, 2010 at 5:17 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Is there any way to have a webapp handle an out of memory exception semi-gracefully? E.g., release session, restart, something other than having to ssh into the server? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Surf the harmonics -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
Re: [Lift] Handle OOM
I've got a work in progress jvm memory options for Lift post... but I've gotta get below 30 unread email messages before I finish it (probably late Feb) Connected by MOTOBLUR™ on T-Mobile -Original message- From: Jim Barrows jim.barr...@gmail.com To: liftweb@googlegroups.com Sent: Wed, Feb 3, 2010 14:52:47 GMT+00:00 Subject: Re: [Lift] Handle OOM On Tue, Feb 2, 2010 at 9:18 PM, David Pollak feeder.of.the.be...@gmail.comwrote: On Tue, Feb 2, 2010 at 5:49 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Hmm... Can the code catch the exception and try to execute a script that restarts it? :) The Sun JVM has the following flag: -XX:OnOutOfMemoryError=script_to_execute This will allow an auto-restart. Oh, very cool. I didn't know that. On Tue, Feb 2, 2010 at 8:43 PM, Jim Barrows jim.barr...@gmail.comwrote: Not generally within your code no. The VM is out of memory, not the webapp, so the VM has to be restarted. However you could have a nagios other monitoring service auto-restart in such cases. On the other hand... you really shouldn't be getting a OOM error in Java... On Tue, Feb 2, 2010 at 5:17 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Is there any way to have a webapp handle an out of memory exception semi-gracefully? E.g., release session, restart, something other than having to ssh into the server? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/grou -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
Re: [Lift] Handle OOM
Looking forward! - David Pollakfeeder.of.the.be...@gmail.com wrote: I've got a work in progress jvm memory options for Lift post... but I've gotta get below 30 unread email messages before I finish it (probably late Feb) Connected by MOTOBLUR™ on T-Mobile -Original message- From: Jim Barrows jim.barr...@gmail.com To: liftweb@googlegroups.com Sent: Wed, Feb 3, 2010 14:52:47 GMT+00:00 Subject: Re: [Lift] Handle OOM On Tue, Feb 2, 2010 at 9:18 PM, David Pollak feeder.of.the.be...@gmail.comwrote: On Tue, Feb 2, 2010 at 5:49 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Hmm... Can the code catch the exception and try to execute a script that restarts it? :) The Sun JVM has the following flag: -XX:OnOutOfMemoryError=script_to_execute This will allow an auto-restart. Oh, very cool. I didn't know that. On Tue, Feb 2, 2010 at 8:43 PM, Jim Barrows jim.barr...@gmail.comwrote: Not generally within your code no. The VM is out of memory, not the webapp, so the VM has to be restarted. However you could have a nagios other monitoring service auto-restart in such cases. On the other hand... you really shouldn't be getting a OOM error in Java... On Tue, Feb 2, 2010 at 5:17 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Is there any way to have a webapp handle an out of memory exception semi-gracefully? E.g., release session, restart, something other than having to ssh into the server? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/grou -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
Re: [Lift] Handle OOM
+1 JVM flags are like major ninja foo. Cant wait! Cheers, Tim On 3 Feb 2010, at 16:12, Naftoli Gugenheim wrote: Looking forward! - David Pollakfeeder.of.the.be...@gmail.com wrote: I've got a work in progress jvm memory options for Lift post... but I've gotta get below 30 unread email messages before I finish it (probably late Feb) Connected by MOTOBLUR™ on T-Mobile -Original message- From: Jim Barrows jim.barr...@gmail.com To: liftweb@googlegroups.com Sent: Wed, Feb 3, 2010 14:52:47 GMT+00:00 Subject: Re: [Lift] Handle OOM On Tue, Feb 2, 2010 at 9:18 PM, David Pollak feeder.of.the.be...@gmail.comwrote: On Tue, Feb 2, 2010 at 5:49 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Hmm... Can the code catch the exception and try to execute a script that restarts it? :) The Sun JVM has the following flag: -XX:OnOutOfMemoryError=script_to_execute This will allow an auto-restart. Oh, very cool. I didn't know that. On Tue, Feb 2, 2010 at 8:43 PM, Jim Barrows jim.barr...@gmail.comwrote: Not generally within your code no. The VM is out of memory, not the webapp, so the VM has to be restarted. However you could have a nagios other monitoring service auto-restart in such cases. On the other hand... you really shouldn't be getting a OOM error in Java... On Tue, Feb 2, 2010 at 5:17 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Is there any way to have a webapp handle an out of memory exception semi-gracefully? E.g., release session, restart, something other than having to ssh into the server? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/grou -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
Re: [Lift] Handle OOM
For in production java app, I generaly wrap them with Java Service Wrapper for Tanuki Software. (include heartbeat, restart, script to run as service,...) http://wrapper.tanukisoftware.org/ or the 100% java alternative : yajsw http://yajsw.sourceforge.net/ /davidB On Wed, Feb 3, 2010 at 17:26, Timothy Perrett timo...@getintheloop.eu wrote: +1 JVM flags are like major ninja foo. Cant wait! Cheers, Tim On 3 Feb 2010, at 16:12, Naftoli Gugenheim wrote: Looking forward! - David Pollakfeeder.of.the.be...@gmail.com wrote: I've got a work in progress jvm memory options for Lift post... but I've gotta get below 30 unread email messages before I finish it (probably late Feb) Connected by MOTOBLUR™ on T-Mobile -Original message- From: Jim Barrows jim.barr...@gmail.com To: liftweb@googlegroups.com Sent: Wed, Feb 3, 2010 14:52:47 GMT+00:00 Subject: Re: [Lift] Handle OOM On Tue, Feb 2, 2010 at 9:18 PM, David Pollak feeder.of.the.be...@gmail.comwrote: On Tue, Feb 2, 2010 at 5:49 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Hmm... Can the code catch the exception and try to execute a script that restarts it? :) The Sun JVM has the following flag: -XX:OnOutOfMemoryError=script_to_execute This will allow an auto-restart. Oh, very cool. I didn't know that. On Tue, Feb 2, 2010 at 8:43 PM, Jim Barrows jim.barr...@gmail.comwrote: Not generally within your code no. The VM is out of memory, not the webapp, so the VM has to be restarted. However you could have a nagios other monitoring service auto-restart in such cases. On the other hand... you really shouldn't be getting a OOM error in Java... On Tue, Feb 2, 2010 at 5:17 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Is there any way to have a webapp handle an out of memory exception semi-gracefully? E.g., release session, restart, something other than having to ssh into the server? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/grou -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
[Lift] Handle OOM
Is there any way to have a webapp handle an out of memory exception semi-gracefully? E.g., release session, restart, something other than having to ssh into the server? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
Re: [Lift] Handle OOM
Not generally within your code no. The VM is out of memory, not the webapp, so the VM has to be restarted. However you could have a nagios other monitoring service auto-restart in such cases. On the other hand... you really shouldn't be getting a OOM error in Java... On Tue, Feb 2, 2010 at 5:17 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Is there any way to have a webapp handle an out of memory exception semi-gracefully? E.g., release session, restart, something other than having to ssh into the server? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
Re: [Lift] Handle OOM
Hmm... Can the code catch the exception and try to execute a script that restarts it? :) On Tue, Feb 2, 2010 at 8:43 PM, Jim Barrows jim.barr...@gmail.com wrote: Not generally within your code no. The VM is out of memory, not the webapp, so the VM has to be restarted. However you could have a nagios other monitoring service auto-restart in such cases. On the other hand... you really shouldn't be getting a OOM error in Java... On Tue, Feb 2, 2010 at 5:17 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Is there any way to have a webapp handle an out of memory exception semi-gracefully? E.g., release session, restart, something other than having to ssh into the server? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
Re: [Lift] Handle OOM
That would require memory allocation etc to do so. Which is of course, a problem at this point. On Tue, Feb 2, 2010 at 6:49 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Hmm... Can the code catch the exception and try to execute a script that restarts it? :) On Tue, Feb 2, 2010 at 8:43 PM, Jim Barrows jim.barr...@gmail.com wrote: Not generally within your code no. The VM is out of memory, not the webapp, so the VM has to be restarted. However you could have a nagios other monitoring service auto-restart in such cases. On the other hand... you really shouldn't be getting a OOM error in Java... On Tue, Feb 2, 2010 at 5:17 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Is there any way to have a webapp handle an out of memory exception semi-gracefully? E.g., release session, restart, something other than having to ssh into the server? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
Re: [Lift] Handle OOM
On Tue, Feb 2, 2010 at 5:49 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Hmm... Can the code catch the exception and try to execute a script that restarts it? :) The Sun JVM has the following flag: -XX:OnOutOfMemoryError=script_to_execute This will allow an auto-restart. On Tue, Feb 2, 2010 at 8:43 PM, Jim Barrows jim.barr...@gmail.com wrote: Not generally within your code no. The VM is out of memory, not the webapp, so the VM has to be restarted. However you could have a nagios other monitoring service auto-restart in such cases. On the other hand... you really shouldn't be getting a OOM error in Java... On Tue, Feb 2, 2010 at 5:17 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Is there any way to have a webapp handle an out of memory exception semi-gracefully? E.g., release session, restart, something other than having to ssh into the server? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Surf the harmonics -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
Re: [Lift] Handle OOM
Neat! Thanks! On Tue, Feb 2, 2010 at 11:18 PM, David Pollak feeder.of.the.be...@gmail.com wrote: On Tue, Feb 2, 2010 at 5:49 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Hmm... Can the code catch the exception and try to execute a script that restarts it? :) The Sun JVM has the following flag: -XX:OnOutOfMemoryError=script_to_execute This will allow an auto-restart. On Tue, Feb 2, 2010 at 8:43 PM, Jim Barrows jim.barr...@gmail.comwrote: Not generally within your code no. The VM is out of memory, not the webapp, so the VM has to be restarted. However you could have a nagios other monitoring service auto-restart in such cases. On the other hand... you really shouldn't be getting a OOM error in Java... On Tue, Feb 2, 2010 at 5:17 PM, Naftoli Gugenheim naftoli...@gmail.comwrote: Is there any way to have a webapp handle an out of memory exception semi-gracefully? E.g., release session, restart, something other than having to ssh into the server? -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- James A Barrows -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- Lift, the simply functional web framework http://liftweb.net Beginning Scala http://www.apress.com/book/view/1430219890 Follow me: http://twitter.com/dpp Surf the harmonics -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.comliftweb%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups Lift group. To post to this group, send email to lift...@googlegroups.com. To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
