Hi,
merb RAM usage (rss) appears to stay flat for a long time and then suddenly shoots up.
After the RAM usage has spiked it looks like this:
$ ps vax --sort=-rss |head
PID TTY STAT TIME MAJFL TRS DRS RSS %MEM COMMAND
29513 ? R 2192:16 1141997 2 2549253 2352616 79.9 merb : worker (port
4000)
9882 ?
S 39:31 31673 2 172461 111188 3.7 ruby /usr/bin/chef-indexer -d -c /etc/chef/indexer.rb
29514 ? S 20:39 55304 2 132805 58284 1.9 merb : worker (port 4001)
29512 ? S 811:15 11118 2 104457 29028 0.9 merb : spawner (ports
4000)
10213 ? S 3:37 119973 2 301561 18080 0.6 /usr/bin/ruby1.8 /usr/bin/stompserver -C /etc/stompserver.conf
15666 ? Sl 0:15 1473 1617 111930 10768 0.3 /usr/lib/erlang/erts-5.7.2/bin/beam.smp -Bd -K true – -root /usr/lib/erlang -progname erl – -home /var/lib/couchdb -noshell -noinput -smp auto -sasl errlog_type error -pa /usr/lib/couchdb/erlang/lib/couch-0.10.0/ebin
/usr/lib/couchdb/erlang/lib/mochiweb-r97/ebin /usr/lib/couchdb/erlang/lib/ibrowse-1.5.2/ebin /usr/lib/couchdb/erlang/lib/erlang-oauth/ebin -eval application:load(ibrowse) -eval application:load(oauth) -eval application:load(crypto) -eval application:load(couch) -eval crypto:start() -eval ssl:start() -eval ibrowse:start() -eval couch_server:start([ “/etc/couchdb/default.ini”, “/etc/couchdb/local.ini”, “/etc/couchdb/default.ini”, “/etc/couchdb/local.ini”]), receive done -> done end. -pidfile /var/run/couchdb/couchdb.pid -heart
Bumped up VM that is running Chef server from 3 GB RAM to 5 GB RAM.
After the reboot merb is only using about 185 MiB rss vs. 2.3 GiB
$ ps vax --sort=-rss |head
PID TTY STAT TIME MAJFL TRS DRS RSS %MEM COMMAND
29513 ? R 2192:16
1141997 2 2549253 2352616 79.9 merb : worker (port 4000)
9882 ? S 39:31 31673 2 172461 111188 3.7 ruby /usr/bin/chef-indexer -d -c /etc/chef/indexer.rb
29514 ? S 20:39 55304 2 132805 58284 1.9 merb : worker (port
4001)
29512 ? S 811:15 11118 2 104457 29028 0.9 merb : spawner (ports 4000)
10213
? S 3:37 119973 2 301561 18080 0.6 /usr/bin/ruby1.8 /usr/bin/stompserver -C /etc/stompserver.conf
15666 ? Sl 0:15 1473 1617 111930 10768 0.3 /usr/lib/erlang/erts-5.7.2/bin/beam.smp -Bd -K true – -root /usr/lib/erlang -progname erl – -home /var/lib/couchdb -noshell -noinput -smp auto -sasl errlog_type error -pa /usr/lib/couchdb/erlang/lib/couch-0.10.0/ebin /usr/lib/couchdb/erlang/lib/mochiweb-r97/ebin /usr/lib/couchdb/erlang/lib/ibrowse-1.5.2/ebin /usr/lib/couchdb/erlang/lib/erlang-oauth/ebin -eval application:load(ibrowse) -eval application:load(oauth) -eval application:load(crypto) -eval application:load(couch) -eval crypto:start() -eval ssl:start() -eval ibrowse:start() -eval couch_server:start([ “/etc/couchdb/default.ini”, “/etc/couchdb/local.ini”,
"/etc/couchdb/default.ini", “/etc/couchdb/local.ini”]), receive done -> done end. -pidfile /var/run/couchdb/couchdb.pid -heart
We are keeping charts of RAM use over time via Nagios/RRD and they show the increase in RAM usage happens suddenly not gradually. It also repeats over time.
Do other people see this issue?
Thanks,
Ken