Re: [CentOS] environment-modules

2009-12-27 Thread Marcelo M. Garcia
On 26/12/2009 03:21, mark wrote:
> xiaoyunpeng wrote:
>> I think you should give the user a path list of javas you've installed. More
>> step on, a script with a "sun-java" or "openjdk" as input for switching the
>> java type would be better.
>
> Ok, so I guess no one's ever used environment-modules. Thanks anyway.
>
>   mark
Hi

I used environment-modules a few years a go with OSCAR[1], and I 
remember to simply coping and editing files to create a intel-mpi, 
intel-cc, etc, based on modules provided by OSCAR.

The document "Drag Your Design Environment Kicking and Screaming into 
the 90's With Modules!" in project page[2] seems to be pretty complete.

In fact I'm considering using environment-modules as an alternative to 
put a lot of configuration in .cshrc.

Regards

mg.


[1] http://svn.oscar.openclustergroup.org/trac/oscar
[2] http://modules.sourceforge.net/
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Re: [CentOS] SFTP - stalled - on large files

2009-12-27 Thread Sean Carolan
>> # Turn off SACK
>> net.ipv4.tcp_sack = 0
>
> and execute "sysctl -p" to apply it.  You can also use "sysctl -w
> net.ipv4.tcp_sack=0" to turn it off temporarily.  Our file transfers worked
> just fine after the change.
>
> I realize there are differences our situation and yours and this might not
> work in your case.  Given the length of this thread, though, it might be
> worth a try!

It appears that the Netscaler load balancer was the problem.  We
turned off TCP buffering (TCPB) on the netscaler for this particular
virtual server, and I was immediately able to transfer a 95MB file
with no issues.  Citrix has acknowledged that there may be some issues
with the tcp stack on this device, which they think have been resolved
in more recent versions of the Netscaler OS.

Hopefully if anyone else experiences this issue, they'll be able to
Google it via the CentOS list archives.
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Re: [CentOS] Centos & UPS

2009-12-27 Thread Drew
HI Robert,

Either apcupsd or NUT(network ups tools) will work. I've used both and
IMO apcupsd often seems to have better support for the newer APC units
then NUT does.

That said, I do prefer NUT because I've been using their tools for a
lot longer. I also run a mixed shop, APC & Liebert UPS's protecting
virtualised CentOS & Windows Server 2003 instances, so NUT's been more
flexible for me.


-- 
Drew

"Nothing in life is to be feared. It is only to be understood."
--Marie Curie
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Re: [CentOS] environment-modules

2009-12-27 Thread mark
Marcelo M. Garcia wrote:
> On 26/12/2009 03:21, mark wrote:

> I used environment-modules a few years a go with OSCAR[1], and I remember to
> simply coping and editing files to create a intel-mpi, intel-cc, etc, based
> on modules provided by OSCAR.
> 
> The document "Drag Your Design Environment Kicking and Screaming into the
> 90's With Modules!" in project page[2] seems to be pretty complete.

But... but that's *so* last century! 
> 
> In fact I'm considering using environment-modules as an alternative to put a
> lot of configuration in .cshrc.

I'll check it out tomorrow and let y'all know how it goes. Thanks!

mark
-- 
What part of "turn the other cheek", and "study war no more" don't you 
understand?
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Re: [CentOS] Recent Java OpenJDK RPMs

2009-12-27 Thread Christoph Maser
Am Samstag, den 26.12.2009, 14:48 +0100 schrieb Mathieu Baudier:
> Hello,
>
> I have quite a few issues with the default OpenJdk package on CentOS
> 5.4 x86_64 (e.g. crash of Eclipse [1], and now excessive permgen
> memory requirement causing the JVM to freeze and requiring a kill -9).
>
> These issues do not appear with a local build of the latest stable
> IcedTea [2], so I am considering using a more recent version of the
> JVM
> (I am not running Red Hat certified Java apps).
>
> Does anyone know of ongoing efforts to provide recent versions of the
> JDK as (S)RPMs?
>
> I found some in CentOS Testing [3] but they date back from July 2008
> and are b09 whereas current is b16.
>
> Thanks in advance for any hints!
>
> Cheers,
>
> Mathieu
>

I also see more issues with the latest OpenJDK packages
(1.6.0.0-1.7.b09.el5) than with the release before
(1.6.0.0-1.2.b09.el5). It seems the -1.7.b09 sometimes hast jvm crashes
if memory gets low.

Chris


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