[Spacewalk-list] Spacewalk performance tuning for deployments with 1000+ hosts

Wed Oct 29 15:56:30 UTC 2014

this will scale out (not scale UP) your env, but you will change where your client will be connected -> to spacewalk or to spacewalk proxy


Da: spacewalk-list-bounces at redhat.com
A: spacewalk-list at redhat.com
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Data: Wed, 29 Oct 2014 15:49:09 +0100
Oggetto: Re: [Spacewalk-list] Spacewalk performance tuning for deployments with 1000+ hosts


> Does this solve problem with web ui ?

> Sent from my Windows Phone> From: Amedeo Salvati
> Sent: ‎2014-‎10-‎29 12:03
> To: spacewalk-list at redhat.com
> Cc: spacewalk-list at redhat.com
> Subject: Re: [Spacewalk-list]Spacewalk performance tuning for deployments with 1000+ hosts


> repeat I think you must use rhn|spacewalk proxies

> best regards
> a


> Da: spacewalk-list-bounces at redhat.com
> A: spacewalk-list at redhat.com
> Cc: 
> Data: Wed, 29 Oct 2014 07:22:30 +0100
> Oggetto: Re: [Spacewalk-list] Spacewalk performance tuning for deployments with 1000+ hosts


> > Unfortunately it doesn't help :(

> > When i want do sth with all 1500 systems i get :
> > Service Temporarily Unavailable
> > The server is temporarily unable to service your
request due to maintenance downtime or capacity
problems. Please try again later.

> > 2014-10-28 17:41 GMT+01:00 Matthew Madey <mattmadey at gmail.com>:

> > Here are some configurations you might find helpful for tuning Apache\Tomcat\Java\Networking.. Like others have mentioned.. when you get over 1000+ clients, it's a good idea to start scaling horizontally with Spacewalk Proxies. We use 4 proxies in our production environment and are servicing 8000+ clients. We can actually patch 1600 clients at a time and the GUI is still pretty responsive. Can't guarantee this will resolve your issue, but this worked for us. 

> > Add maxThreads to /etc/tomcat6/server.xml> >  > >     <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" URIEncoding="UTF-8" address="127.0.0.1" maxThreads="1024" maxKeepAliveRequests="1000"/>> >     <!-- A "Connector" using the shared thread pool-->> >     <!--> >     <Connector executor="tomcatThreadPool"> >                port="8080" protocol="HTTP/1.1" > >                connectionTimeout="20000" > >                redirectPort="8443" />> >  > >     <!-- Define an AJP 1.3 Connector on port 8009 -->> >     <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" URIEncoding="UTF-8" address="127.0.0.1" maxThreads="1024"/>> >   > >     <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" URIEncoding="UTF-8" address="::1" maxThreads="1024"/>> >  > >   > > Tune Apache to service more requests /etc/httpd/conf.d/zz-spacewalk-server.conf> >  > >  > > #######################################################> > # Authorship and versioning info> > # $Author$> > # $Date$> > # $URL$> > # $Rev$> > # deployment_location: /etc/httpd/conf.d/> > #######################################################> > # ** DO NOT EDIT **> > # Master configuration file for the rhn_server setup> > #> >  > > ##> > ## Spacewalk settings> > ##> >  > > <VirtualHost *>> >  > > <IfModule mod_jk.c>> >     # Inherit the mod_jk settings defined in zz-spacewalk-www.conf> >     JkMountCopy On> > </IfModule>> >  > > <Directory "/var/www/html/*">> >         AllowOverride all> > </Directory>> >  > > RewriteEngine on> > RewriteOptions inherit> > </VirtualHost>> >  > > # Override default httpd prefork settings> > <IfModule prefork.c>> > StartServers       8> > MinSpareServers    400> > MaxSpareServers   400> > ServerLimit      1024> > MaxClients       1024> > MaxRequestsPerChild  200> > </IfModule>> >  > > Include /etc/rhn/satellite-httpd/conf/rhn/rhn_monitoring.conf> >  
> >  
> >  > >  Also added some network tuning to /etc/sysctl.conf> >  
> > net.ipv4.icmp_echo_ignore_broadcasts = 1> > net.ipv4.conf.all.secure_redirects = 0> > net.ipv4.tcp_max_syn_backlog = 8192> > net.ipv4.conf.default.secure_redirects = 0> > net.ipv4.tcp_syncookies = 1> > net.ipv4.conf.all.accept_source_route = 0> > net.ipv4.conf.all.rp_filter = 1> > net.ipv4.conf.all.send_redirects = 0> > net.ipv4.conf.default.accept_redirects = 0> > net.ipv4.conf.all.accept_redirects = 0> > net.ipv4.conf.default.send_redirects = 0> > net.core.somaxconn = 1536> > net.core.dev_weight = 512> > ##3x normal for a queue and budget suited to networks greater than 100mbps> > net.core.netdev_budget = 10000> > net.core.netdev_max_backlog = 30000

> > Depending on the amount of memory on your Spacewalk server, you may want to increase your JAVA_OPTS Xms and Xmx settings to something a little higher. Typically only needed if you are seeing Java Heap out of memory errors in your Spacewalk logs.


> > On Tue, Oct 28, 2014 at 11:21 AM, Waldirio Manhães Pinheiro <waldirio at gmail.com> wrote:
> > Dear Krzysztof

> > Have you checked your numa configuration ?!


> > Maybe you can customize you environment to use the same bus to application / memory.
> > ______________
> > Atenciosamente
> > Waldirio
> > msn: waldirio at gmail.com
> > Skype: waldirio
> > Site: www.waldirio.com.br
> > Blog: blog.waldirio.com.br
> > LinkedIn: http://br.linkedin.com/pub/waldirio-pinheiro/22/b21/646
> > PGP: www.waldirio.com.br/public.html


> > On Tue, Oct 28, 2014 at 2:10 PM, Krzysztof Pawłowski <msciciel at msciciel.eu> wrote:
> > We have dedicated machine for db pgsql (16GB RAM , 8 cores)  and seperate for spacewalk (16GB RAM, 8 Cores).

> > I think that problem is with enormous number of queries to database. During such request db is not utilized 100% and spacewalk is also not 100% utilized.


> > 2014-10-28 16:25 GMT+01:00 Götz Reinicke - IT Koordinator <goetz.reinicke at filmakademie.de>:
> > Hi,
> > 
Am 28.10.14 um 12:57 schrieb Krzysztof Pawłowski:

> > > Hi,
> > 
> Is there any guide about tuning spacewalk performance ? With every new
> > 
> host spacewalk is getting slowly. Using SSM with more than 200-300 hosts
> > 
> is impossible due timeouts. It's also not possible to deploy config
> > 
> files to all hosts.
> > 
> Standard java tuning was done, java gc is not the problem now.
> > 
>
> > 
> Any suggestions ?


> > what server hardware do you use? What is the systemload while performing
> > 
that tasks? CPU, RAM, Disksystem, IO, Network .... ?


> > 
        /Götz


> > 
--
> > 
Götz Reinicke
> > 
IT-Koordinator


> > 
Tel. +49 7141 969 82 420
> > 
E-Mail goetz.reinicke at filmakademie.de


> > 
Filmakademie Baden-Württemberg GmbH
> > 
Akademiehof 10
> > 
71638 Ludwigsburg

> > www.filmakademie.de


> > 
Eintragung Amtsgericht Stuttgart HRB 205016


> > 
Vorsitzender des Aufsichtsrats: Jürgen Walter MdL

> [The entire original message is not included.]

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