Re: Katello and minimal memory requirements
On Tue 18 Dec 2012 03:28:06 AM MST, Lukas Zapletal wrote:
Hello,
minimal requirements for memory is now higher with introduction of
Foreman integration. Example machine:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+
16635 elastics 20 0 1452m 218m 9772 S 1.3 11.9 0:16.01
16428 tomcat 20 0 2103m 194m 9940 S 1.0 10.6 0:12.84
16824 katello 20 0 304m 176m 3260 S 0.0 9.6 0:10.44
16818 katello 20 0 304m 176m 3264 S 0.0 9.6 0:10.37
16924 katello 20 0 301m 171m 1580 S 0.0 9.3 0:00.58
16925 katello 20 0 301m 167m 536 S 0.0 9.2 0:00.02
16719 foreman 20 0 249m 127m 3052 S 0.0 7.0 0:05.92
16723 foreman 20 0 249m 127m 2968 S 0.0 6.9 0:05.74
16544 apache 20 0 942m 43m 5976 S 0.3 2.4 0:01.67
8774 root 20 0 862m 16m 2816 S 0.0 0.9 0:09.59
16562 mongodb 20 0 837m 14m 1840 S 0.3 0.8 0:00.61
16590 qpidd 20 0 308m 10m 3780 S 0.0 0.6 0:00.12
Please ignore the VIRT column asi it shows files mapped into the memory
and since Java applications maps JAR files, that is the reason why we
see 3.5 gigs of memory used by Java. Let's focus on the RES (resident)
memory column:
As you can see, typical memory consumption of the nightly instance is
cca 1.4 GB for: Katello (2 thins 1 job workoer) , Candlepin, Foreman (2
thins) and ElasticSerch. Then we need to add some memory for httpd
(Pulp), mongodb, qpidd, postgresql and also system.
I think the 2 GB minimal requirement has been reached, I recommend to
use 2.5 GB as an absolute minimum (expect some swapping) and 3 GB as the
recommended minimal value. For production setups, I would see 6 GB as a
good value to start with.
Lana - is a bug on the docs required for this?
--
Jason E. Rist
Senior Software Engineer
Systems Management and Cloud Enablement
Red Hat, Inc.
+1.919.754.4048
Freenode: jrist
github/identi.ca: knowncitizen