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Zombies with PPID 1 after premature death of ruby script/console
Reported by rubynewbie | July 28th, 2009 @ 10:18 PM
Folks,
On my slice, I sometimes run update scripts like this -
ruby script/console
include necessary_file update_db_blah
At times, script dies (due to intermittent internet connection or I have tried to stop it with Ctrl+Z). After that, I see zombie processes with PPID 1 and they chew slice's memory.
Hard/soft reboot don't help either.
ps aux -H shows this -
root 1 0.0 0.0 3984 48 ? Ss Jul27 0:00 /sbin/init
. . . rajat 9096 2.6 15.1 501412 159140 ? D 15:54 4:21 Rails:
/var/www/blah
rajat 9103 2.9 16.6 1025760 175092 ? D 16:02 4:40 Rails:
/var/www/blah
rajat 9133 1.5 15.7 982324 165388 ? D 16:31 1:59 Rails:
/var/www/blah
rajat 9135 0.9 15.0 366776 157800 ? D 16:31 1:10 Rails:
/var/www/blah
rajat 9167 0.4 15.6 341976 164540 ? D 16:36 0:35 Rails:
/var/www/blah
See all of them combined are chewing up all the memory.
free -m
total used free shared buffers cached
Mem: 1024 1014 9 0 0 3
-/+ buffers/cache: 1010 14 Swap: 2047 2046 1
I kill processes using kill -9 but they keep coming back up.
Is there a fix /patch to avoid these memory leaks/zombies from coming up?
Comments and changes to this ticket
-
Matt Jones July 30th, 2009 @ 02:57 AM
It's very hard to make out what your command results are, but the Rails: processes are Passenger workers...
You may want to try posting again, using code block formatting (three @ signs) to make things clearer.
-
Will Bryant July 31st, 2009 @ 06:46 AM
Ctrl + Z does not kill or abort a process, it puts it to sleep - that's what it's for. What are you trying to do?
-
Ryan Bigg June 16th, 2010 @ 11:34 PM
- State changed from “new” to “wontfix”
You should be using rake tasks for these. Your intermittent connections is not something Rails can fix.
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