Table of Contents
[part of a series of meetings]
Participants
Al, Dmitry, Gerd, Tigran, Karsten, Christian
Agenda
[see box on the right-hand side]
Postcards
Up to two minutes (uninterrupted) per person where they can answer two questions:
- What I did last week (since the last meeting),
- What I plan to do in the next week.
No questions until we get through everyone :)
Karsten: Smallfiles for DPHep and Docukenmtnation
Christian: Tickets!, pcells -> testing, Patches
Al: Decoupled Alarms from other sercvice
Dmitry: Metawork
Gerd: Helping KIT upgrade
Tigran: Debugging NFS problems with CMS instance
Special topics
KIT upgrade
Gerd:
Successfully upgraded, Spacemanager problems, because of stuff (e.g., indices) in tables Duplicated records, null values - no idea why. Currently restoring 2.6 dump Made a patch to solve those issues for other sites
Issue with duplicated records remaining.
CMS NFS
Tigran:
50% of worker nodes use NFS4.1 now From last thursday, maybe caused by network problems, problems started to occur, pool were online but not serving data, patch committed, other patches running but not yet in repo. More problems with network caused new problems -> NFS4.1 offline -> will setup another NFS door for other use cases so users and worker nodes don't interfere. -> split reads and writes and metadata operations
-> open question: why are we falling back to proxy IO
Dmitry:
- we have a case of one direcotry where ls takes some seconds and ls -l takes about 2h.
- Also GridFTP transfers looks to kill performance and push up IO wait
Trunk activity
Progress with new features...
- xrootd4j update requires update of plugins.
- ipv6 patch 7571
Issues from [FIXME: Add link to yesterday's Tier-1 meeting]
PIC: will upgrade to 2.10 on monday KIT: no issues with dCache, will upgrade to 2.11 soon.
Plans for patch-releases
Should we make a new patch release?
-
Outstanding Documentation
Outstanding RT Tickets
http://rt.dcache.org/Ticket/Display.html?id=8557 - SRM default port - should we change srmclient? -> won't ix http://rt.dcache.org/Ticket/Display.html?id=8561 - xrootd movers -> we could somehow work around this, but it is not critical. http://rt.dcache.org/Ticket/Display.html?id=8508 8509 8499 - ipv6 -> Gerd has a patch, what does it fix? http://rt.dcache.org/Ticket/Display.html?id=8556 - advice on configuring hot pool replication -> trial and error
Better to spread data in the first place using migration/balance 0.7 might be a good number (Tigran)
8400 -> is documented
Review of RB requests
There are some WebAdmin? patches 7484, 7508 + 7503, please review again Al, Gerd: billing patch
New, noteworthy and other business
DTNM
Proposed: same time, next week.