Transfer Slowdown

This week (apart from the GridPP 18 meeting) I have been trying to complete the transfer tests, but am getting terrible rates out of RAL. The CERN Network Stats To RAL Don't look too excessive:


But the iperf stats out of RAL have plummeted - The RAL-Lanc (who even have a private lightpath) one below is typical.

Sponsored by "No space left on device"

Dear root@Birmingham,
I broke your system

Well, I blame the filetransfer script - It uses your (long lifetime) myproxy for the transfers and the shorter voms-proxy for the delete. Result:
one filled up disk when my voms proxy expired. Seems to have recovered OK.

Prettification

With a hat-tip to xkcd I decided to knock up an ugly script to convert this:

aelwell@ppepc62:~$ ls tra*06T*.log
transfer-2007-03-06T09-52-38.log transfer-2007-03-06T14-38-59.log transfer-2007-03-06T19-06-22.log

consisting of blocks like

Transfer: srm://ralsrma.rl.ac.uk:8443//castor/ads.rl.ac.uk/prod/grid/hep/disk1tape1/dteam/j/jkf/castorTest/1GBcanned000 to srm:
//svr018.gla.scotgrid.ac.uk:8443/dpm/gla.scotgrid.ac.uk/home/dteam/aetest10/tfr000-file00000
Size: 1000000000.0
FTS Duration: 188
FTS Retries: 0
FTS State: Done
FTS Reason: (null)
Local_Created: 1173174769.27
Local_Submit: 1173174769.3
Submitted: 1173174770.69
Active: 1173174832.97
Done: 1173175041.23
Delete_time: 1173175050.67

into the much prettier



As normal, it's available on http://www.gridpp.ac.uk/wiki/User:Andrew_elwell/Scripts

voms proxy issues

Another day, another pile of transfer tests. Or not. Problem renewing my voms-proxy.

voms.cern.ch bombed out with:

Error: Could not establish authenticated connection with the server.
GSS Major Status: Unexpected Gatekeeper or Service Name
GSS Minor Status Error Chain:

an unknown error occurred

so I raised GGUS Ticket (19457)

Old Logs Available

There is a new link on my ATLAS tests page "All Logs" which allows one to look at old log and output files. These can be filtered by institute. It's a bit flaky because the webserver isn't really up to it. Logs before February 8 have been lost.

Transfer Tests Milestones

Started to work on the Q1 transfer tests (hey, I know I only have a month to go) - Stub on the Wiki at http://www.gridpp.ac.uk/wiki/2007-Q1_Transfer_Tests

Next step this afternoon is to try and get the experiment dress rehersal timetable and ensure we're not clashing

{{wikify}}

Following Jeremy's posting to the gridpp-dteam gently reminding us all that the wiki was in need of a tidy, I decided to take a look at some stats:

There are currently 92 Uncategorized pages and there are 52 Categories.

I guess I'll start by categorising the uncategorised pages, then creating stubs for those that are presently the most requested (ie, we've created a hanging link) - see List of Wanted Pages