dhis2-devs team mailing list archive

[Lars Helge Øverland <larshelge@xxxxxxxxx>]

On Sat, Sep 22, 2012 at 1:53 PM, Olav <op.registrering@xxxxxx> wrote:
> Thanks, pretty sure the root was set correctly, but will check again when I get to the server
>

OK make sure nginx has read privileges for it too.

> I know the guide says it assumes "4 Gb RAM is allocated for PostgreSQL and 7 GB RAM is allocated for Tomcat", but does that assume a server with a total of 12, 16, 24 GB - how much overhead is needed? If I have a server with 8GB and assume that means I should use 2 GB for postgres and 3,5 GB for tomcat, should all values simply be divided by two, or are some "fixed" (checkpoint_completion_target, wal_buffers,  wal_writer_delay)?
>
> These are probably stupid questions, but since the manual now really is a step-by-step thing that covers more or less every command you need, I think it could provide some more guidance here.
>

Okay understand. It depends on whether you have other services running
on the same machine. You can leave around 1 GB free, 1. to give room
for the operating system to perform its regular tasks and 2. as a
buffer so that you don't tell java or postgres that it has more memory
than what is physically available, which might lead to paging and
decrease of performance.

> Olav
>
>
>
>
> 22. sep. 2012 kl. 11:05 skrev Lars Helge Øverland <larshelge@xxxxxxxxx>:
>
>> Hi Olav
>>
>> On Sat, Sep 22, 2012 at 12:42 PM, Olav <op.registrering@xxxxxx> wrote:
>>> Hi,
>>> was following the implementers manual to set up a server for the Gambia. All
>>> worked fine, except for nginx caching(?) - using the "template"
>>> configuration in the manual, the formatting/layout of DHIS2 is removed.
>>> Commenting out the below block fixes the issue. Any suggestions for what I'm
>>> doing wrong?
>>>
>>> # Root points to your DHIS webapp location, update it!
>>>
>>> location ~
>>> (\.js$|\.css$|\.gif$|\.woff$|\.ttf$|\.eot$|^/images/|^/icons/|^/dhis-web-commons/.*\.png$)
>>> {
>>>   root     /home/dhis/tomcat/webapps/ROOT;
>>>   expires  4d;
>>> }
>>>
>>
>> Make sure that the root path (in this case root
>> /home/dhis/tomcat/webapps/ROOT) is actually pointing to the extracted
>> war location on your server.
>>
>>>
>>> Apart from that, the new server installations instructions are good, as
>>> opposed to last time I tried to follow them... Only thing I really miss was
>>> some more guidelines on configuration of memory, postgres etc related to the
>>> memory available on the server. Something along the line of, "if you have 8
>>> GB total, allocate X for shared memory, set postgres variables to Y1, Y2,
>>> Y3, set JAVA_OPTS to Z1, Z2, Z3". I understand it might be difficult to give
>>> general recommendations, but some guidance on this would be good.
>>>
>>
>> It says under 8.1:
>>
>> -
>> For this guide we assume that 4 Gb RAM is allocated for PostgreSQL and
>> 7 GB RAM is allocated for Tomcat. If you are running a different
>> configuration please adjust the suggested values accordingly.
>> -
>>
>> So you adjust the values used in the guide according to that.
>>
>> Lars
>>
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>