Hi Nagaraj,
> DPM file access fails at our site, but not always. Here is a clipping of
> dpm log showing access of a file. I do not understand whether the
> access. Does "get 0" mean that fileread was successful?
>
> 01/29 17:12:17 5452,24 dpm_srv_proc_get:
> /dpm/indiacms.res.in/home/cms/store/mc/SAM/QCD_pt_0_15/GEN-SIM-RAW-RECO/IDEAL_
>
> V9_SAM/0000/2C556CAE-ACA5-DD11-A6C7-00163E11248E.root: DPM_FAILED (No
> such file or directory)
>
> The Gstat monitoring shows our SE is OK.
> Is the problem something to do with number of DPM or rfio threads?
> How do I find out which dpm diskserver is the file actually on?
seems the file is missing during the transfer stage, you can check the
srmv2 log for more details.
besides, you can search from dpm log (associated the ns time stamp, if
the ns exit), for the disk server/fs selected (dpm_selectfs)
to obtain associated disk server and file system, you can try deploy dpm
admin tool or utility from:
https://www.gridpp.ac.uk/wiki/DPM_Utilities
http://www.gridpp.ac.uk/wiki/DPM-admin-tools
BR,
J
--
Jason Shih
ASGC/OPS
Tel: +886-2-2789-8311
Fax: +886-2-2783-7653
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