TSA2.5 Deployed Middleware Support Unit

From EGIWiki
Revision as of 18:30, 5 December 2011 by Ljocha (talk | contribs) (Shift schedule)
Jump to: navigation, search

TPM cheat sheet

TPM DMSU Cheat Sheet
Comp\Flavor CESNET JUELICH INFN BADW-LRZ NDGF
ARC *
BDII *
CREAM *
dCache *
DGAS *
DPM *
FTS *
GLOBUS *
Gridsite *
LB *
LFC *
MyProxy *
SGAS *
STORM *
UNICORE *
VOMS * *
WMS * *

People working for DMSU

The DMSU people are categorized into two groups:

  • Assigners, i.e. the prime technical contact person pr. partner and also the one to conduct the initial assignment of tickets following the TPM assignment
  • Resolvers, extra experts at each partners to which the assigner can delegate tasks when needed either due to technical reasons or due to overload of one of the other staff members.

The lost of people, with a short list of expertise areas relevant for DMSU follow here:

CESNET

Assigner: Aleš Křenek, ljocha at ics dot muni dot cz
EGI SSO login: ljocha
Expertise: LB, DPM

Resolvers:

  • Zdeněk Salvet, salvet at ics dot muni dot cz (LB, WMS, MyProxy)
  • Zdeněk Šustr, sustr4 at cesnet dot cz (LB, WMS)
  • Daniel Kouřil, kouril at ics dot muni dot cz (Gridsite, MyProxy, VOMS and security in general)

JUELICH

Assigners: Rebecca Breu (rbreu), Mathilde Romberg (romberg)

Expertise: UNICORE

Resolvers:

  • Jason Milad Daivandy

INFN

Assigner: Alessandro Paolini (alessandro.paolini at cnaf.infn.it)
EGI SSO login: apaolini
Expertise: CREAM, LFC, VOMS

Resolvers:

  • Andrea Cristofori (andrea.cristofori at cnaf.infn.it)(DGAS,WMS)
  • David Rebatto (david.rebatto at mi.infn.it)(CREAM)
  • Sara Bertocco (sara.bertocco at pd.infn.it) (CREAM, WMS)
  • Sergio Traldi (sergio.traldi at pd.infn.it)(CREAM, WMS)
  • Elisabetta Ronchieri (elisabetta.ronchieri at cnaf.infn.it) (STORM)
  • Stefano Dal Pra (stefano.dalpra at cnaf.infn.it)(STORM)
  • Paolo Veronesi (paolo.veronesi at cnaf.infn.it) (BDII, FTS)

BADW-LRZ

Assigner: Emmanouil Paisios
EGI SSO login: epaisios
Expertise: Globus

Resolvers:

  • None (Emmanouil is responsible for everything here)

NDGF

Assigner: Jens Larsson
EGI SSO login: jens
Expertise: ARC, dCache

Resolvers:

  • Gerd Behrmann (dCache)
  • Daniel Johansson (ARC)
  • Henrik Thostrup (SGAS, ARC)

DMSU shifts

The main purpose of DMSU shift is no surprise: keep the things running, not to leave an important issue without fast reaction etc.

The shifts are held by groups of people with expertise on different middleware stacks. However, due to the prevailing gLite-related traffic in DMSU only gLite shifts are formally organized currently, the other stacks are handled on the best effort basis.

The specific duties of the person on shift are:

  • to follow incoming emails from GGUS, being able to react within approx. 2 hours in normal working hours
  • to identify "top priority" and "very urgent" issues, not only by the priority set by the submitter but also by using common sense, and to make sure an appropriate expert starts looking into the issue; this includes assigning the ticket to a specific person
  • to keep checking that there is reasonable response time, namely as a reaction to further submitter's correspondence; it should be almost immediate on "top priority", and we can probably afford upto 1 week for "less urgent"

One person holds the shift for one week, the duty is passed to the other on Monday afternoon.

Shift schedule

Oct 10 Aleš Křenek
Oct 17 Alessandro Paolini
Oct 24 Zdeněk Salvet
Oct 31 Alessandro Paolini
Nov 7 Aleš Křenek
Nov 14 Sergio Traldi
Nov 21 Zdeněk Salvet
Nov 28 Sara Bertocco
Dec 5 Zdeněk Salvet
Dec 12 INFN
Dec 19 Aleš Křenek
Dec 26 best effort
Jan 2 Aleš Křenek
Jan 9 INFN
Jan 16 Zdeněk Salvet

Systems available for DMSU

In order to debug issues and design workaround availability to some systems is needed. Below is a list of systems available for the DMSU staff pr partner.

CESNET

prague_cesnet_lcg2

  • # nodes/cores: 20/80
  • OS: SL 5.2
  • Batch system: PBSPro
  • Grid m/w: gLite 3.1
  • EA Site: Y

https://goc.gridops.org/site/list?id=48

{floi1,floi2}.egee.cesnet.cz

Virtual machines for experimental services, can be scratched and reinstalled as required.

  • # nodes/cores: 2/2
  • OS: SL 5.3 x86_64
  • Batch system: N/A
  • Scheduler: N/A
  • Grid m/w and flavour: LB 2.0 (of gLite 3.2)
  • EA Site: N

JUELICH

INFN

# nodes/cores: a) 4/8 b) 3/6
OS: a) SL4 x86_32 b) SL5 x86_64
Batch system: torque/pbs
Scheduler: maui
Grid m/w and flavour: a) INFNGRID 3.1 (based on gLite 3.1) b) INFNGRID 3.2 (based on gLite 3.2)
EA Site: Y (for STORM service) https://goc.gridops.org/site/list?id=95

BADW-LRZ

Linux Cluster

   * Nodes/Cores: 938/5532
   * OS: SUSE Linux Enterprise Server 10
   * Batch System/Scheduler: SGE 6.2
   * Globus 4.0.7
   * EA Site: N

NDGF

Smokerings

   * Nodes/Cores: 66/528
   * CentOS 5.7
   * Torque (to be replaced by SLURM)
   * MOAB (to be replaced by SLURM)
   * ARC 1.1
   * EA Site
   * https://goc.gridops.org/node/list?id=7055071

DMSU Digests

Brief description and indexing of issues solved within DMSU that are likely to have broader impact on EGI Operations.

Maintained on separate page InSPIRE-SA2:DMSU digests.

DMSU feedback on top-BDII

In preparation for the workshop "Towards an Integrated Information System" we've gathered some information here

Obsolete stuff

Not used anymore but keeping the old links here.

Relevant tickets

Relevant tickets passed through DMSU and assigned to other support units are gathered here

Meetings