ATLAS SCCS Planning 22Nov2006
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9am, SCCS Conf Rm A, to call in +1 510 665 5437, press 1, 3935#
Present: Wei, Charlie, Stephen, John, Chuck
Agenda:
1. DQ2 Status/Web Proxy
Stephen just came from a meeting with the DDM folk. They thought it
was possibly due to call backs for monitoring to cause the DQ2
machine to be come busy. Wei didn't see the machine being busy.
What Wei did see what many unknown datasets being seen. Thing it
was PANDA temporary datasets that had been removed already as they
only last around twelve hours. As it becomes unknown it then gets
removed from the list of imports. This meant that most of the
transfers aren't done. Wei has asked the PANDA folk what a dispatch
block is. Things seem to be running okay.
The total size of the dataset Stephen is transferring is 600GB. That
should take a day, not a week. We are not getting much bandwidth
from FTS. Also a known problem with FTS filling all it slots, can
take a long time to get the failed requests into the slot which
slows down all transfers.
0.2.12 should start being rolled out next. Should hear from Wensheng.
2. AOB
- GUMS server
Crashed recently due to a known memory leak in the new version
installed recently. Cannot find the old version to go back
to. Should restart every few days to make sure this problem
doesn't come up again.
- New machines/disk
Not ordered yet. Currently working on power. Don't believe we are
waiting on any feedback.
Action Items:
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061122 Wei Attempt to implement security recommendations
061115 Wei Add monitoring disk space for DQ2 to Ranger.
061122 Not done yet. Also need to monitor the GUMS server.
061108 Richard Discuss with SLAC Security longterm approach to ATLAS VO
061115 No information.
061101 Richard/Bill Convene advisory group regarding CPU/disk split.
061108 Have emailed Gordon. To be done.
061115 Gordon and Bill will meet today to discuss it.
061025 Stephen Check web server approval status
061101 Have opened up that hornet's nest.
061108 No news for the last week. Need to keep the discussion going.
061115 Teresa trying to get web team together for a meeting
next week.
061122 Everyone at the meeting except Stephen went. They want
to know if we are up to date with security patches. BobC
would like us to use an IP range for protection in MySQL
instead of the domain name. Also not sure if the web
server interface needs read/write or just read
access. Could set the privilege of the web server to
make security tighter, also by putting it on a different
machine. Believe the Site Services python scripts update
the TiersOfAtlasCache.py file. There was a general
unhappiness of how security was handled. Folk are going
to take this message to the Tier-2 meeting next
month. The verdict was allowed under protest. Recognised
this is an important commitment but need to work with authors
to improve system.
061018 Wei Test gridftp with xrootd federation
061025 Probably not very soon, but should be on the agenda.
061101 No change.
061108 Will remove from Agenda and leave as action item.
061115 Nothing done yet.
061122 Nothing happened yet. Discussion with Wilko about
setting up an xrootd machine for testing with ATLAS data
transfers. With SRM need to have all xrootd machines
exposed to the Internet, so not a great solution.
061004 Randy Find out about xrootd for ATLAS plans
061018 no news
061025 No information yet. Andy probably knows something.
061101 No info.
061108 Need to get Andy involved in this discussion. Might be
useful for Andy to go to the December meeting in
Arlington.
061115 Will attempt to get Andy on the phone next week.
061122 Didn't actually happen. Next time?
