dCache Tier I meeting February 4, 2014

[part of a series of meetings]

Present

dCache.org(Tigran, Patrick, Paul), IN2P3(), Sara(), Triumf(), BNL(), NDGF(), PIC(), KIT(Xavier), Fermi(), CERN()

Agenda

(see box on the other side)

Site reports

Xavier

Looking fine at the moment; no critical issues we are fighting.

About of tickets.

Problem with webadmin

Reported our webadmin page for tape transfers was broken --- page was hanging -- restarting httpd didn't help. Open ticket RT-8225.

Problem with pool

Problem with pool become unresponsive to admin commands. RT ticket 8227.

Problem seems to be due to large number of set-sticky messages. These are processed by the message-queue and are processed serially due to a lock in the pool's metadata. The result is that command by that are causing the message-queue threads to become blocked.

Xavier also mentioned that there was a high number of p2p server requests; due to pool being hot.

Listing movers for specific queue

RT ticket 8229.

mover ls -queue=<queue-name>

Ticket closed for now; Xavier can reopen it if REGULAR queue isn't selectable.

Support tickets for discussion

[Items are added here automagically]

DTNM

Same time, next week.