[Mauiusers] maui crashes with segv (version 3.2.6.p16)

Bas van der Vlies basv at sara.nl
Fri Nov 3 00:19:45 MST 2006


  Thanks for reaction.

wightman wrote:
> I thought now would be a good time for Cluster Resources Incorporated to
> chime in and give an official position.
> First off, let me say that Maui is still being maintained.  There aren't
> any new features planned but bug fixes and enhancements from the
> community are always welcome and are actively applied.  
That is good to hear.

Several people have posted patches or enhancements to the list with no 
reaction from the maintainers. In the past i have also submitted 
patches/enhancements for maui and i got a reaction if the patch will be 
applied or rejected.  Some patches also fixed issues in moab ;-)

To give an example. I have posted a patch that fixes an issue with MAXPS 
for our site. I submitted a bug report and asked several times to the 
list if the patch will be applied, rejected or must i change the patch 
so it would be applied. Till now i have not had a reaction at all ;-(

> As for the specific segv bug that this thread centers on, I have not yet
> seen a patch from the community that the community agrees should be
> applied.  As soon the community agrees on a patch it will be applied and
> a new snapshot will be released.  

Somebody has to make the decision to apply a patch. Who makes the 
decision? The community is a bit vague ;-).

> Many bugs, such as this specific segv, cannot be reproduced in our own
> labs simply because we don't locally maintain the large clusters that
> the community maintains.  However, should a remote site ask us to log in
> remotely to track down an issue we are always happy to do so.
To trigger the segv, you do not need a big cluster at all. I run it on a 
test cluster with 2 nodes and adjusted MAX_MJOB to 32768 and submit a 
lot of jobs and see if maui could cope with it. So it is a simple test.

> Cluster Resources has no plans to drop Maui.  If there is a member of
> the OSS community that believes they can act as an efficient liaison
> between Cluster Resources and the rest of the community we are happy to
> give that person admin rights to the Maui bugzilla and also enable
> direct code access.

Could this also be a team instead of one person?


> - Douglas Wightman
> Directory of Software Engineering
> Cluster Resources, Inc.
> On Thu, 2006-11-02 at 09:54 -0500, Rouben Tchakhmakhtchian wrote:
>> Hash: SHA1
>> I can certainly appreciate the position clusterresources.com is in; in
>> other words, they need to make money off moab. However, one important
>> thing to realize is that clusterresources.com needs the input of the OSS
>> community in order to assist the evolution and development of their
>> software.
>> Furthermore, it would probably make more sense to try our fresh patches
>> in the open source flavours of the software, and once they are deemed
>> "stable" to move them to your commercial offerings. This is an approach
>> used by RedHat, for example (Fedora Core vs. RedHat Enterprise). Of
>> course, if there are any serious bug/security issues to be fixed, they
>> can go straight into the Enterprise offering.
>> Just my 2 cents.
>> Rouben Tchakhmakhtchian
>> High Performance Computing System Administrator
>> Information & Instructional Technology Services
>> University of Toronto at Scarborough
>> - -----------------------------------------------
>> E-mail: rouben at utsc.utoronto.ca
>> Phone: 416-208-4732
>> Fax: 416-287-7507
>> - -----------------------------------------------
>> GnuPG Key: http://tinyurl.com/roce2
>> GnuPG Key ID: 0x58A2061B
>> GnuPG Key Fingerprint:
>> CCA6 BAEA BC2B E184 8D97 9E59 1188 12DD 58A2 061B
>> Bas van der Vlies wrote:
>>> Steve Traylen wrote:
>>>> On Nov 2, 2006, at 11:09 AM, Åke Sandgren wrote:
>>>>> On Thu, 2006-11-02 at 11:03 +0100, Bas van der Vlies wrote:
>>>>>> Still i have a question that is not answered till now. Is Maui still
>>>>>> supported or maintained?
>>>>>> Because sometimes patches are applied but most of the times not. See
>>>>>> bugzilla (http://www.clusterresources.com/bugzilla/ a lot
>>>>>> of patches/bugs are still open and they are really old.
>>>>>> Another thing is if patches are sent. There is no reaction at all ;-(
>>>>>> Maybe maintaining my own version is the best option at this moment!
>>>>> Yes, this is beginning to be a problem.
>>>>> What is the status? Who is responsible for maui right now?
>>>>> Could maui development be opened up to more people like i think was done
>>>>> with torque?
>>>> It seems that many of features submitted by maui users into bugzilla
>>>> do make it
>>>> into moab but take ages if ever to reach maui.
>>> That was my impression also ;-(.
>>> -- 
>>> ********************************************************************
>>> *                                                                  *
>>> *  Bas van der Vlies                     e-mail: basv at sara.nl      *
>>> *  SARA - Academic Computing Services    phone:  +31 20 592 8012   *
>>> *  Kruislaan 415                         fax:    +31 20 6683167    *
>>> *  1098 SJ Amsterdam                                               *
>>> *                                                                  *
>>> ********************************************************************
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*                                                                  *
*  Bas van der Vlies                     e-mail: basv at sara.nl      *
*  SARA - Academic Computing Services    phone:  +31 20 592 8012   *
*  Kruislaan 415                         fax:    +31 20 6683167    *
*  1098 SJ Amsterdam                                               *
*                                                                  *

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