Re: [rt-users] RT 3.8.7 fails to send email sometimes - cannot allocate memory?
Ok, postscript: I haven't seen the problem occur in the week since making the change. Memory usage on the box hasn't really changed at all, but the error messages and the symptom have ceased and performance is still great so currently looks like case closed, thankyou! Regards, Chris On 2 August 2011 10:43, Chris Herrmann chrisherrma...@gmail.com wrote: Yes, I've grabbed the mrtgs for memory usage, and at about 9:30am yesterday free ram plummeted on the box, and cleared itself up at about 12:30 or shortly before I started looking at it. There are a few times a day when free memory gets very low, but they don't correlate with cron jobs... I've tried tuning the following parameters in apache: MaxClients 50 MaxRequestsPerChild 1 dropping from 150, 0 respectively. The server doesn't host any high volume / usage sites and spends most of it's day counting sheep so I'd rather the (presumably) extra memory allocated per child and auto-cycling children in case of memory leaks. I'll watch this for a few days and see how memory usage on the box compares then report back. 2011 Training: http://bestpractical.com/services/training.html
[rt-users] RT 3.8.7 fails to send email sometimes - cannot allocate memory?
Hi, We have a strange situation where sometimes emails that should be sent are not received (for example upon a reply via web or email). I spent some time today trying to work out when this occurred, only to find that it was working as expected for various permutations of reply / comment etc to requestor / CC / Admin CC until I went digging for a specific ticket that I knew we'd witnessed this error with today. This is what appeared in the logs when I (the owner) replied using the web interface, which should have sent an email back to the requestor: Aug 1 12:05:22 sirius RT: rt-3.8.7-28432-1312164322-125.78931-1...@faredge.com.au #78931/638647 - Scrip 14 Notify Owner of Change (/usr/share/request-tracker3.8/lib/RT/Action/SendEmail.pm:300) Aug 1 12:05:22 sirius RT: rt-3.8.7-28432-1312164322-125.78931-1...@faredge.com.au: Could not send mail with command `/usr/sbin/sendmail -oi -t`: couldn't execute program: Cannot allocate memory at /usr/share/request-tracker3.8/lib/RT/Interface/Email.pm line 432.#012#012Stack:#012 [/usr/share/request-tracker3.8/lib/RT/Interface/Email.pm:432]#012 [/usr/share/request-tracker3.8/lib/RT/Action/SendEmail.pm:307]#012 [/usr/share/request-tracker3.8/lib/RT/Action/SendEmail.pm:129]#012 [/usr/share/request-tracker3.8/lib/RT/ScripAction_Overlay.pm:238]#012 [/usr/share/request-tracker3.8/lib/RT/Scrip_Overlay.pm:464]#012 [/usr/share/request-tracker3.8/lib/RT/Scrips_Overlay.pm:196]#012 [/usr/share/request-tracker3.8/lib/RT/Transaction_Overlay.pm:188]#012 [/usr/share/request-tracker3.8/lib/RT/Record.pm:1457]#012 [/usr/share/request-tracker3.8/lib/RT/Ticket_Overlay.pm:2831]#012 [(eval 3450):12]#012 [/usr/share/request-tracker3.8/lib/RT/ScripAction_Overlay.pm:238]#012 [/usr/share/request-tracker3.8/lib/RT/Scrip_Overlay.pm:464]#012 [/usr/share/request-tracker3.8/lib/RT/Scrips_Overlay.pm:196]#012 [/usr/share/request-tracker3.8/lib/RT/Transaction_Overlay.pm:188]#012 [/usr/share/request-tracker3.8/lib/RT/Record.pm:1457]#012 [/usr/share/request-tracker3.8/lib/RT/Ticket_Overlay.pm:3323]#012 [/usr/share/request-tracker3.8/lib/RT/Ticket_Overlay.pm:2996]#012 [/usr/share/request-tracker3.8/lib/RT/Record.pm:898]#012 [/usr/share/request-tracker3.8/lib/RT/Interface/Web.pm:1340]#012 [/usr/share/request-tracker3.8/lib/RT/Interface/Web.pm:1450]#012 [/usr/share/request-tracker3.8/html/Ticket/Display.html:156]#012 [/usr/share/request-tracker3.8/html/Ticket/Update.html:261]#012 [/usr/share/request-tracker3.8/lib/RT/Interface/Web.pm:320]#012 [/usr/share/request-tracker3.8/lib/RT/Interface/Web.pm:224]#012 [/usr/share/request-tracker3.8/html/autohandler:53] (/usr/share/request-tracker3.8/lib/RT/Interface/Email.pm:448) Aug 1 12:05:24 sirius RT: rt-3.8.7-28430-1312164324-42.79722-...@faredge.com.au #79722/638648 - Scrip 4 On Correspond Notify AdminCcs (/usr/share/request-tracker3.8/lib/RT/Action/SendEmail.pm:300) Aug 1 12:05:24 sirius RT: rt-3.8.7-28430-1312164324-42.79722-...@faredge.com.au No recipients found. Not sending. (/usr/share/request-tracker3.8/lib/RT/Interface/Email.pm:342) Aug 1 12:05:24 sirius RT: rt-3.8.7-28430-1312164324-331.79722-...@faredge.com.au #79722/638648 - Scrip 6 On Correspond Notify Other Recipients (/usr/share/request-tracker3.8/lib/RT/Action/SendEmail.pm:300) Aug 1 12:05:24 sirius RT: rt-3.8.7-28430-1312164324-331.79722-...@faredge.com.au No recipients found. Not sending. (/usr/share/request-tracker3.8/lib/RT/Interface/Email.pm:342) Aug 1 12:05:24 sirius RT: rt-3.8.7-28430-1312164324-628.79722-...@faredge.com.au #79722/638648 - Scrip 5 On Correspond Notify Requestors and Ccs (/usr/share/request-tracker3.8/lib/RT/Action/SendEmail.pm:300) Aug 1 12:05:24 sirius RT: rt-3.8.7-28430-1312164324-628.79722-...@faredge.com.au: Could not send mail with command `/usr/sbin/sendmail -oi -t`: couldn't execute program: Cannot allocate memory at /usr/share/request-tracker3.8/lib/RT/Interface/Email.pm line 432.#012#012Stack:#012 [/usr/share/request-tracker3.8/lib/RT/Interface/Email.pm:432]#012 [/usr/share/request-tracker3.8/lib/RT/Action/SendEmail.pm:307]#012 [/usr/share/request-tracker3.8/lib/RT/Action/SendEmail.pm:129]#012 [/usr/share/request-tracker3.8/lib/RT/ScripAction_Overlay.pm:238]#012 [/usr/share/request-tracker3.8/lib/RT/Scrip_Overlay.pm:464]#012 [/usr/share/request-tracker3.8/lib/RT/Scrips_Overlay.pm:196]#012 [/usr/share/request-tracker3.8/lib/RT/Transaction_Overlay.pm:188]#012 [/usr/share/request-tracker3.8/lib/RT/Record.pm:1457]#012 [/usr/share/request-tracker3.8/lib/RT/Ticket_Overlay.pm:2175]#012 [/usr/share/request-tracker3.8/lib/RT/Ticket_Overlay.pm:2087]#012 [/usr/share/request-tracker3.8/lib/RT/Interface/Web.pm:1147]#012 [/usr/share/request-tracker3.8/html/Ticket/Display.html:146]#012 [/usr/share/request-tracker3.8/html/Ticket/Update.html:261]#012 [/usr/share/request-tracker3.8/lib/RT/Interface/Web.pm:320]#012 [/usr/share/request-tracker3.8/lib/RT/Interface/Web.pm:224]#012 [/usr/share/request-tracker3.8/html/autohandler:53]
Re: [rt-users] RT 3.8.7 fails to send email sometimes - cannot allocate memory?
On 08/01/2011 02:43 AM, Chris Herrmann wrote: Aug 1 12:05:22 sirius RT: rt-3.8.7-28432-1312164322-125.78931-1...@faredge.com.au mailto:rt-3.8.7-28432-1312164322-125.78931-1...@faredge.com.au: Could not send mail with command `/usr/sbin/sendmail -oi -t`: couldn't execute program: Cannot allocate memory at /usr/share/request-tracker3.8/lib/RT/Interface/Email.pm line 432.#012#012Stack:#012 [snip] In qmail (not running on this particular box) I've seen what I suspect is a similar thing when you load spam assassin, AV etc etc, which requires you to increase the amount of memory available to the tcpserver via softlimit (exec /usr/local/bin/softlimit -m 4000 ...) and so on. Is this what I'm seeing here, and if so, how / what do I need to change? Or is it something else entirely? You're seeing effectively the same thing. Your machine is running out of memory and there isn't enough for the OS to run /usr/sbin/sendmail. You should increase the memory available or decrease your memory use. Thomas 2011 Training: http://bestpractical.com/services/training.html
Re: [rt-users] RT 3.8.7 fails to send email sometimes - cannot allocate memory?
But the box has heaps of memory free on it. I've been searching but can't find anything that tells you how to up the per thread / process / etc memory limit. You can tune the number of workers and so forth in apache, but I don't expect dropping that to help if there is still 1.5g free ram on the box? 2011 Training: http://bestpractical.com/services/training.html
Re: [rt-users] RT 3.8.7 fails to send email sometimes - cannot allocate memory?
On 08/01/2011 10:04 AM, Chris Herrmann wrote: But the box has heaps of memory free on it. I've been searching but can't find anything that tells you how to up the per thread / process / etc memory limit. You can tune the number of workers and so forth in apache, but I don't expect dropping that to help if there is still 1.5g free ram on the box? There may be 1.5 gigs of free memory now, but there might not have been when that log message was written. I'd start looking for cronjobs, etc. that might have been running at the same time. Thomas 2011 Training: http://bestpractical.com/services/training.html
Re: [rt-users] RT 3.8.7 fails to send email sometimes - cannot allocate memory?
Yes, I've grabbed the mrtgs for memory usage, and at about 9:30am yesterday free ram plummeted on the box, and cleared itself up at about 12:30 or shortly before I started looking at it. There are a few times a day when free memory gets very low, but they don't correlate with cron jobs... I've tried tuning the following parameters in apache: MaxClients 50 MaxRequestsPerChild 1 dropping from 150, 0 respectively. The server doesn't host any high volume / usage sites and spends most of it's day counting sheep so I'd rather the (presumably) extra memory allocated per child and auto-cycling children in case of memory leaks. I'll watch this for a few days and see how memory usage on the box compares then report back. 2011 Training: http://bestpractical.com/services/training.html
