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

Tue Mar 29 17:53:52 UTC 2016

Yep, already did.

default_statistics_target = 100
maintenance_work_mem = 2GB
checkpoint_completion_target = 0.9
effective_cache_size = 44GB
work_mem = 2048MB
wal_buffers = 16MB
checkpoint_segments = 32
shared_buffers = 14GB
max_connections = 100

Full load of 250 nodes about 20second. Was 150.
What's you load time if you can share?
Thanks!

On Tue, Mar 29, 2016 at 10:44 AM, Matt Moldvan <matt at moldvan.com> wrote:

> Sounds like since you're giving Tomcat more resources it's able to do it's
> job better, and now Postgres needs some tuning.  I ran pgtune on mine for
> 2,000 clients as such:
>
> as the postgres user:
> pgtune -i data/postgresql.conf  -o ./data/postgresql.conf.new -c 2000
>
> You might be able to get way with fewer, though, but it's worth a try if
> you want a usable UI without having to update (though the update for me was
> relatively painless if I recall correctly).
>
> On Tue, Mar 29, 2016 at 12:50 PM Konstantin Raskoshnyi <konrasko at gmail.com>
> wrote:
>
>> With this settings JAVA doesn't eat the memory anymore, but postgres eat
>> 100%.
>> Loading of the page with this settings is 100second.
>> With default 70
>>
>> On Mon, Mar 28, 2016 at 8:53 PM, Matt Moldvan <matt at moldvan.com> wrote:
>>
>>> At those values I'm not surprised you see some slowness... try Xmx/Xms
>>> of 4G and PermSize of 512m, MaxPermSize of 1024m.  The PermSize I think is
>>> what helps the most, as the default is only 64MB if it's not specified
>>> directly.  I'm not a Tomcat expert but it felt faster after I set the
>>> values that way...
>>>
>>> On Mon, Mar 28, 2016 at 10:31 PM Konstantin Raskoshnyi <
>>> konrasko at gmail.com> wrote:
>>>
>>>> I have this values for JAVA_OPTS
>>>>
>>>> tomcat   20101  0.3  0.7 4277092 513852 ?      Ssl  Mar25  16:36 java
>>>> -ea -Xms256m -Xmx256m -Djava.awt.headless=true
>>>> -Dorg.xml.sax.driver=org.apache.xerces.parsers.SAXParser
>>>> -Dorg.apache.tomcat.util.http.Parameters.MAX_COUNT=1024 -XX:MaxNewSize=256
>>>> Tried to increase Xms & Xmx, but didn't find any advantages
>>>>
>>>> On Fri, Mar 25, 2016 at 8:09 PM, Matt Moldvan <matt at moldvan.com> wrote:
>>>>
>>>>> You mentioned you did some Tomcat tuning, but what are your values set
>>>>> to?  I noticed some considerable speed up when I tinkered with PermSize and
>>>>> similar variables, like below.  I think the defaults are pretty low and not
>>>>> enough memory is allocated off the bat.  Also while the page is loading
>>>>> what do you notice in top or atop or htop?
>>>>>
>>>>> tomcat    2161     1  0 Mar24 ?        00:04:59
>>>>> /usr/lib/jvm/java/bin/java -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...rest truncated
>>>>>
>>>>> On Fri, Mar 25, 2016 at 9:07 PM Konstantin Raskoshnyi <
>>>>> konrasko at gmail.com> wrote:
>>>>>
>>>>>> Sorry, Asking again...Any possibilities to fix this bug, without
>>>>>> upgrading the system?
>>>>>> It's a physical host. Today it's almost not working (Systems menu),
>>>>>> even if i list 25 hosts or search for a specific one. The top doesn't show
>>>>>> any processes locking the system.
>>>>>> Thanks!
>>>>>>
>>>>>> On Fri, Mar 25, 2016 at 10:41 AM, Matt Moldvan <matt at moldvan.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Yes I think the way the dependencies are set in the packages
>>>>>>> updating one will potentially update the rest, so best to do the update off
>>>>>>> hours, and if possible (if it's a VM for example) take a snapshot or back
>>>>>>> up of your config and database first.
>>>>>>>
>>>>>>> On Fri, Mar 25, 2016 at 12:14 PM Konstantin Raskoshnyi <
>>>>>>> konrasko at gmail.com> wrote:
>>>>>>>
>>>>>>>> Yep. I double checked the version, and it's 2.3.
>>>>>>>> Is it necessary to update the whole packages with yum?
>>>>>>>> It's the main deployment server. Don't want to get any troubles :).
>>>>>>>> Thanks!
>>>>>>>>
>>>>>>>>
>>>>>>>> On Friday, March 25, 2016, Matt Moldvan <matt at moldvan.com> wrote:
>>>>>>>>
>>>>>>>>> Cool, I was thinking you were already at 2.4 from your earlier
>>>>>>>>> reply.  Either way good luck and let us know if it solves your issue in
>>>>>>>>> case anyone has the same question in the future.
>>>>>>>>>
>>>>>>>>> > The spacewalk version is 2.4, Oct 7th, 2015 Thanks!
>>>>>>>>>
>>>>>>>>> On Thu, Mar 24, 2016 at 11:15 PM Konstantin Raskoshnyi <
>>>>>>>>> konrasko at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> Hi Matt!
>>>>>>>>>>
>>>>>>>>>> I tried to tune tomcat, but looks like here's my problem
>>>>>>>>>> https://bugzilla.redhat.com/show_bug.cgi?id=1214437
>>>>>>>>>>
>>>>>>>>>> Going to upgrade to version 2.4..
>>>>>>>>>>
>>>>>>>>>> Thanks!
>>>>>>>>>>
>>>>>>>>>> On Thu, Mar 24, 2016 at 8:06 PM, Matt Moldvan <matt at moldvan.com>
>>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>> 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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