[Spacewalk-list] Spacewalk slow opens full list of nodes (Systems) 250nodes

[Matt Moldvan]

What are your tomcat settings like?  We have maxThreads set to 2048 for the
8009 and 8080 connectors in /etc/tomcat6/server.xml:

    <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000"
redirectPort="8443" maxThreads="2048" maxKeepAliveRequests="1024"
URIEncoding="UTF-8" address="127.0.0.1"/>
    <Connector port="8009" protocol="AJP/1.3" redirectPort="8443"
URIEncoding="UTF-8" address="127.0.0.1" maxThreads="2048"
maxConnections="2048" connectionTimeout="600" keepAliveTimeout="600"/>

Also, /etc/tomcat6/tomcat6.conf has some settings for JAVA_OPTS that are
interesting for tuning purposes:

JAVA_OPTS="-XX:NewRatio=4 -XX:PermSize=1024m -XX:MaxPermSize=2048m
-XX:NewSize=2048m -XX:MaxNewSize=2048m -Xms8g -Xmx8g -XX:+UseParNewGC
-XX:+UseConcMarkSweepGC -Dsun.rmi.dgc.client.gcInterval=3600000
-Dsun.rmi.dgc.server.gcInterval=3600000"

Listing 500 systems on our master took ~10.22 seconds on an 8 vCPU/32GB RAM
VMware VM, with an external Postgres database VM that has 8 vCPU/16GB RAM,
so yours could be much quicker with some additional tuning, I would think.


On Thu, Mar 24, 2016 at 10:01 PM Konstantin Raskoshnyi <konrasko at gmail.com>
wrote:

> The spacewalk version is 2.4, Oct 7th, 2015
>
> Thanks!
>
> On Thu, Mar 24, 2016 at 6:21 PM, William H. ten Bensel <WHTENBEN at up.com>
> wrote:
>
>> What version of spacewalk are you running?
>>
>> Bill
>>
>> On Mar 24, 2016, at 20:15, Konstantin Raskoshnyi <konrasko at gmail.com>
>> wrote:
>>
>> This email originated from outside of the company. Please use discretion
>> if opening attachments or clicking on links.
>> ------------------------------
>>
>> Hi Community!
>> We have a spacewalk server on SCLinux 7.1, Java 1.7 and postgres
>> When I open Systems menu (list servers) and list whole 250 nodes - it
>> takes about 90 seconds.
>> The java process shows 400%.
>> The server has 64Gb of Ram and 24 cores.
>> Thought the problem in postgres, actually i got the query from the log
>> file, the query runs about 8seconds.
>> All other time Java doing something...
>> Any solutions?
>>
>> Thanks!
>>
>>
>>
>>
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>>
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