[Info-vax] help needed diagnosing/debugging java.lang.OutOfMemoryError

[VAXman- at SendSpamHere.ORG]

In article <j2j2f5$ius$1 at news.albasani.net>, Jan-Erik Soderholm <jan-erik.soderholm at telia.com> writes:
>VAXman- @SendSpamHere.ORG wrote 2011-08-18 14:43:
>> In article<4e4c6bba$0$308$14726298 at news.sunsite.dk>, =?ISO-8859-1?Q?Arne_Vajh=F8j?=<arne at vajhoej.dk>  writes:
>>> On 8/17/2011 8:23 AM, VAXman- @SendSpamHere.ORG wrote:
>>>> In article<4e4b2601$0$314$14726298 at news.sunsite.dk>, =?ISO-8859-1?Q?Arne_Vajh=F8j?=<arne at vajhoej.dk>   writes:
>>>>> On 8/16/2011 9:59 PM, VAXman- @SendSpamHere.ORG wrote:
>>>>>> In article<4e4b055e$0$314$14726298 at news.sunsite.dk>, =?ISO-8859-1?Q?Arne_Vajh=F8j?=<arne at vajhoej.dk>    writes:
>>>>>>> On 8/16/2011 9:07 AM, VAXman- @SendSpamHere.ORG wrote:
>>>>>>>> In article<4e49c081$0$314$14726298 at news.sunsite.dk>, =?ISO-8859-1?Q?Arne_Vajh=F8j?=<arne at vajhoej.dk>     writes:
>>>>>>>>> On 8/15/2011 8:43 PM, VAXman- @SendSpamHere.ORG wrote:
>>>>>>>>>> In article<4e4994ad$0$312$14726298 at news.sunsite.dk>, =?ISO-8859-1?Q?Arne_Vajh=F8j?=<arne at vajhoej.dk>      writes:
>>>>>>>>>>> On 8/15/2011 2:11 PM, VAXman- @SendSpamHere.ORG wrote:
>>>>>>>>>>>> What the subject says...
>>>>>>>>>>>>
>>>>>>>>>>>> An application in development for use on an OpenVMS system is tossing up
>>>>>>>>>>>> this error.  I've increased the page file quota for APACHE$WWW to 1M and
>>>>>>>>>>>> there is still this error.  The logs produced by this Java stuff do not
>>>>>>>>>>>> tell much.  Is there some way to get a dump or more logging?
>>>>>>>>>>>>
>>>>>>>>>>>> PS. I don't do Java (unless it's in my coffee mug) and thus, I'm not the
>>>>>>>>>>>> one developing the app.
>>>>>>>>>>>
>>>>>>>>>>> First: 512 MB is not that much today.
>>>>>>>>>>>
>>>>>>>>>>> Second: what value does the -Xmx option for the java command? (it also
>>>>>>>>>>> limits the maximum memory that can be allocated)
>>>>>>>>>>
>>>>>>>>>> Well, it pukes with -Xmx384m
>>>>>>>>>
>>>>>>>>> Then try 512m 768m 1024m (and make sure that there is backing for it).
>>>>>>>>
>>>>>>>> The STARTUP pukes @ -Xmx384m complaining about memory.
>>>>>>>
>>>>>>> Does the account starting the app have more
>>>>>>> than 384 MB available (page file quota)?
>>>>>>
>>>>>> SYSTEM account has 2000000 on this particular machine.  That's a gig in
>>>>>> my book.
>>>>>
>>>>> Yup.
>>>>>
>>>>> What exactly does "pukes" mean?
>>>>
>>>> the out of memory errors.
>>>>
>>>>> And what Java version?
>>>>
>>>> 1.5.07  This is on Alpha.
>>>
>>> Does it run with 768m?
>>
>> If Java won't start with more than 256m and the application pukes on that,
>> there's little chance of 768m.
>>
>> The developer of this, AFAICT, was not too enamoured of working on OpenVMS
>> and convinced the company that a Linux box is the only system that would
>> work.
>
>Probably not becuse it's Linux, but becuse it has 8, 16 (or
>whatever) GB's of memory.

Try 1GB!



>> The WAY to keep people on VMS is to get these Open Source products working
>> out of the box with VMS friendly installations for a start.  The Convoluted
>> look here, there and everywhere for configuation parameters and logs is one
>> other nightmare.
>
>But, this "nightmare" is standard proceedure on those other
>systems, not ? It's just us VMS'er that are not used to it.

The myriad .COM files for the Java nightmare are a mess.  I have no problem
finding my way about in Linux for this sort of stuff and, if one gets to an
impass, at least there's plenty of help via Google for the Linux implementa-
tions.
-- 
VAXman- A Bored Certified VMS Kernel Mode Hacker    VAXman(at)TMESIS(dot)ORG

All your spirit rack abuses, come to haunt you back by day.
All your Byzantine excuses, given time, given you away.