wiki:developers-meeting-20141008
Last modified 5 years ago Last modified on 10/08/14 15:34:26

[part of a series of meetings]

Participants

Christian, Karsten, Tigran, Al, Gerd, Dmitry

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:

  • Worked on SRM probe ticket,
  • Evaluated some SmallFiles? performance results
  • Will start working on an abstract for DPHEP+SmallFiles?
  • Some tickets + reviews

Christian:

  • investigatin pCells connection problems

Gerd:

  • caching login strategy
  • fixed some bugs, e.g., transient errors
  • fixed bugs concerning new HSM, some patches on RB
  • Migration Module some things for Al and some bug fixes
  • Tier 1
  • XRootD fixes
  • Alice fixing DarkData?, investigating some XrrotD issue
  • worked on relative upload directories

Dmitry:

  • Busy with NFS issues
  • Globus Recursive Copy problems

Al:

  • Debugging RoundRobin? Database issue, found some bugs
  • Plotting seems to be the problem
  • RB work

Tigran:

  • Working on performance issues with Postgres, quite successful, but still < 280files/s Postgres mailing list mention
  • Starting a pool with many small files takes very long (2 days) -> investigate
  • Releases
  • Migrate Jenkings to new machine
  • NFS contributor licence
  • CHEP abstract

Special topics

Backporting patch to 2.6

XRootd Bugs in 2.2 ?

No for one bugs, and the second one would lead to a "unsupported request" reply.

Trunk activity

Progress with new features...

Issues from [FIXME: Add link to yesterday's Tier-1 meeting]

Xavier:

  • Noticed high CPU load on SRM door -> looked like client just hammered the door

Natalia:

  • concerned about xrootd problem, because latest CMS software apparently does not work with dCache
  • recovery time for meta data
  • won't upgrade to 2.10 before May '15

Plans for patch-releases

Should we make a new patch release?

We have a couple of patches that should be released.

  • Xrootd ticket is for 2.10, backports following

Need to release 2.6, 2.8, 2.9, 2.10

Jenkins will be moved to www.dcache.org (SL6)

Outstanding Documentation

BDII documentation is not correct

Outstanding RT Tickets

[This is an auto-generated item. Don't add items here directly]

Review of RB requests

Please have another look at 7306, Gerd to look

New, noteworthy and other business

Are people going to write abstracts for CHEP?

  • Karsten: SmallFiles? with DPHEP
  • Tigran
  • Patrick: Cloud, CMS and Bell with NFS

DTNM

Proposed: same time, next week.