Learn · CERN

Talk7 min

Taming Batch Access to EOS at CERN

Andreas Joachim Peters · CERN

Watch At CERN

About

Physics and CERNBOX instances at CERN are exposed to O(4) mount clients simultaneously. Overloads from batch access is not a new thing - since years the AFS filesystem suffers more or less frequently volume overloads. During overload episodes meta-data access at the MGM slows down significantly because thousands of batch nodes compete against few interactive clients and sync & share access. To give handles to the storage operation team EOS provides a set of access limitation features, which will be introduced in this talk..

0:00:00 Slide 1

0:00:14 Slide 2

0:00:28 Slide 3

0:00:42 Slide 4

0:00:55 Slide 5

0:01:09 Slide 6

0:01:23 Slide 7

0:01:36 Slide 8

0:01:50 Slide 9

0:02:04 Slide 10

0:02:18 Slide 11

The talk

  1. Taming Batch Access to EOS at CERN 2022-03-08 · 7 min · CERN's player

Credits and licence

Institution
CERN
Department
HEP Computing
Speaker
Andreas Joachim Peters
Year
2022
Language
English
Subjects
Computer science
Source
CERN
Licence
CERN, as CERN states it. CERN's terms
Attribution
© CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
Who can watch
CERN gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed