On Thu, Jun 13, 2013 at 2:03 AM, Josal <[email protected]> wrote: > What I plan is to stop the process and flag it as "pending" in my > backoffice, making the process manually later in my machine as an exception. > > I've used 2X dynos, but all the memory available is used and R14 errors also > are thrown. Imagemagick works this way, with much memory. I've limited > delegating to disk cache instead of memory cache > (http://www.imagemagick.org/script/command-line-options.php#limit, suggested > in some places, example here: > http://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=23090), but > no changes.
Tricky. Nominally this is what Linux cgroups was invented to help with, but I think the amount of power delegated to non-root users (and thus, on Heroku) is minimal. Here are two options that come to mind: 1) Somehow delegate these possibly expensive processes to their own 2X dyno, taking the computation out-of-band. e.g., a queuing strategy, multi-app delegation (one app posting to another), or the Heroku API (be careful with that latter one, as it's basically automated "spend money", and one can hit api limits, also, the control plane has worse availability than standing-processes...but it has upsides, like burst capacity and 0-cost when there's nothing to do) 2) Use /proc/[self|pid]/statm or /proc/[self|pid]/status (which has similar information, but is more human-targeted) to inspect the RSS size of a process over time to take control over over-bloated processes. A process could watch itself grow in this way, which would be useful if it can do it semi-frequently enough to write a "too big, can't do" record and give up. If one uses /proc/pid/statm, be aware one will have to multiply by the system page size, which has been 4096 bytes for years but *could* change any time, so consider 'getconf PAGESIZE' to pick up the multiplier. -- -- You received this message because you are subscribed to the Google Groups "Heroku" group. To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/heroku?hl=en_US?hl=en --- You received this message because you are subscribed to the Google Groups "Heroku Community" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
