Manual Replication of Hot Files in dCache

Particularly for the Health Check, we need multiple copies of the source file

All work is performed in either a browser or on head01

  • Choose the file to be replicated
  • Modify health.conf on a test worker, inserting the file name, size (in Bytes) and md5sum
    • Make sure it works!
  • In a browser go here and "Query the file status from dCache"
    • This will give the PNFSID of the file to replicate and the pool where it resides
  • On head01, as root,
    • ssh -l admin localhost -p 22223 -c blowfish -1
    • cd [pool]
    • migration copy -pnfsid=[PNFSID] -smode=precious -tmode=precious -verify
      • Do this for as many copies/pools as is desired
      • Used total of 3 at msu, 2 at um in November, 2010 change
    • info will give status, where ID is printed for each copy
    • ..
    • logoff
As of April, 2016, do this instead
  • On head01, as root,
    • ssh -l admin -p 22224 head01.aglt2.org
    • \c [pool]
    • migration copy -pnfsid=[PNFSID] -smode=precious -tmode=precious -verify
      • Do this for as many copies/pools as is desired
      • Used total of 3 at msu, 2 at um in April, 2016 fix of centrally deleted file
    • info -a will give status of all commands
    • \q
Take a look at original file to get the PNFSID by....
  • On head02, as root,
    • psql -U pnfsserver chimera
    • Find the pnfsid
      • select * from t_dirs where iname='aglt2-test-ddm-file.zip';
    • the returned PNFSID is 0000E20F5C9BC8FB47738EA55B93E52C3CFD
    • Determine the pool location
      • select ilocation from t_locationinfo where ipnfsid='0000E20F5C9BC8FB47738EA55B93E52C3CFD';
    • This returns the full pool list now, the original umfs11_2, plus umfs09_1, msufs14_1, msufs15_3 and msufs16_4
    • \q
This file was originally placed here using gfal-copy, ie
gfal-copy file:///aglt2-test-ddm-file.zip srm://head01.aglt2.org:8443/srm/managerv2?SFN=/pnfs/aglt2.org/atlascalibdisk/rucio/user/ball/aglt2-test-ddm-file.zip

-- BobBall - 22 Nov 2010
Topic revision: r3 - 02 May 2016 - 17:46:41 - BobBall
 

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