Re: [Wrapper-user] Jar works with console, throws exceptions when launched via start?

[Leif M. <le...@ta...>]

Stas,
On linux, open your wrapper shell script in an editor and modify the
PRIORITY value found in the settings section towards the top.  These
are standard nice levels, so look at "man nice" for details.

Cheers,
Leif

On Wed, Oct 1, 2008 at 9:44 PM, Stas Oskin <sta...@gm...> wrote:
> Hi Leif.
>
> 2008/10/1 Leif Mortenson <le...@ta...>
>>
>> Stas,
>> That's great news.   The memory leaks were in the Java code?  What are
>> you maximum memory settings set to?  Are they low enough that the
>> entire JVM will fit in memory without any swapping along side the OS
>> and other apps being used?  Java performs very poorly when its memory
>> is being swapped out. (Not a Wrapper issue)
>
> The leaks were in JNI code and quickly took the whole memory. This caused
> Java to swap.
>
>>
>> About the CPU, I reread this thread but I don't think you ever told me
>> what platform you are running on.  That will make a big difference.
>> Under UNIX, there is a setting in the shell script which allows you to
>> specify a "nice" level to control the priority.
>
> We use Linux - CentOS distro. What setting we should look to?
>
>>
>> On Windows, it is done using the
>> wrapper.ntservice.process_priority=NORMAL property.  Please be sure to
>> read the warnings in the documentation.
>>
>> http://wrapper.tanukisoftware.org/doc/english/prop-ntservice-process-priority.html
>>
>> Normally on most platforms, the OS gives priority to the Windowing
>> system and those processes to make them more responsive.  That is why
>> on UNIX, it is good to run servers in a headless environment.
>
> Hmm, we running the server without any X installed, strictly via console -
> is this what you call headless?
>
> Actually, this is the main app the server was targeted to, so we indeed
> prefer to give it all the priority we can (without hanging the OS of
> course).
>
> Regards.
>
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