Wednesday, November 28, 2007

"Grid Confinement" - A Physicist perspective

The following post should not be taken too seriously!

If Grid Computing is so good but what we see practically is a complete chaos in the Data Center then there must exist an Anti-Grid that cancels all its benefits.
If one tries to make an order and to split the Data Center into two separate sites then immediately Grid - Anti-Grid pairs are produced out of the vacuum and chaos is being restored.

Monday, November 26, 2007

Social Networks and Grid Computing - Some similarities

There are some similarities between Social Networks, e.g. Facebook and Grid Computing.
In the table below I mention a few.

Friday, November 23, 2007

Mounting a memory stick under Linux

A short reminder for myself and for all those who are lost when no auto mount works:

1. Verify that the device is recognized in 'dmesg', write down the device name. e.g. /dev/sdb
2. mkdir /disk_on_key
3. mount -t vfat /dev/sdb /disk_on_key
4. at the end un-mount by: umount /disk_on_key

Good luck!

Sunday, November 18, 2007

GSS authentication failure - A question to the gt-users mailing list

I posted today the following question:

I installed Globus version gt4.0.4-x86_64_rhas_4-installer on an Opteron node running CentOS 4.4.
output of uname -a is:
2.6.9-55.0.2.ELsmp #1 SMP Tue Jun 26 14:14:47 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux

In the globus-gatekeeper.log there is the following error message:

TIME: Thu Oct 25 18:16:50 2007
PID: 14589 -- Notice: 6: globus-gatekeeper pid=14589 starting at Thu Oct 25 18:16:50 2007

TIME: Thu Oct 25 18:16:50 2007
PID: 14589 -- Notice: 6: Got connection at Thu Oct 25 18:16:50 2007

GSS authentication failure
GSS Major Status: General failure
GSS Minor Status Error Chain:
globus_gsi_gssapi: Error during delegation: Delegation protocol violation
Failure: GSS failed Major:000d0000 Minor:00000002 Token:00000000

TIME: Thu Oct 25 18:16:50 2007
PID: 14589 -- Failure: GSS failed Major:000d0000 Minor:00000002 Token:00000000

I would appreciate any help resolving this problem


Guy Tel-Zur

Then, I received the following reply from Charles Bacon:

That's the sign of a client who disconnected because it didn't trust the gatekeeper. From the gatekeeper's point of view, the disconnect of the client is a violation of protocol. It doesn't indicate anything wrong with your gatekeeper.



Thank you for your reply!

Thursday, November 15, 2007

Software Vulnerability: A new group in Facebook

I created a new group in Facebook to discuss and share knowledge in Software Vulnerability.
I keep there references to relevant links and documents.
You are welcome to join the group: Facebook | Software Vulnerability

My page in Facebook

(Note: In order to access the group you need first to login to your Facebook account)


Sunday, November 11, 2007

The 9th edition of PhysicaPlus is on the air

The Israel Physical Society (IPS) on-line magazine, PhysicaPlus, is published a few times a year both in English and in Hebrew and is an excellent source for semi-popular Physics articles.
You are invited to visit PhysicaPlus

Sunday, November 04, 2007

IGT Annual Event & Exhibition

Dec. 3rd, 2007, The Next Generation Data Center

Click on the image for further information: