Print

Print


Hi Pavel,

I'm not sure what version you are running but xrootd supported multiple
directories for quite a long time. Simply list each directory you want to
export with the export directory. For example:

xrootd.export /a/b/c
xrootd.export /d/e

Andy

On Sun, 27 Feb 2005, Pavel Jakl wrote:

> Peter Elmer wrote:
>
> >  Hi Matt,
> >
> >On Sun, Feb 27, 2005 at 09:03:29AM -0800, Langston, Matthew David wrote:
> >
> >
> >>We would like to export multiple directories from our xrootd server. The
> >>version of xrootd we are running currently only supports exporting one
> >>directory. This is our current xrootd.cf file:
> >>
> >>glast@glast01 $ cat xrootd.cf
> >>xrootd.fslib libXrdOfs.so
> >>oss.readonly
> >>xrootd.export /nfs/farm/g/glast/
> >>
> >>We would like to do something like this:
> >>
> >>glast@glast01 $ cat xrootd.cf
> >>xrootd.fslib libXrdOfs.so
> >>oss.readonly
> >>xrootd.export /nfs/farm/g/glast/dir1
> >>xrootd.export /nfs/farm/g/glast/dir2
> >>
> >>However, it appears that xrootd only takes the last "xrootd.export"
> >>stanza. Is there a way to get multiple exports (maybe in a later version
> >>of xrootd)?
> >>
> >>
> >
> >  If you want to export multiple disk partitions from a single server, there
> >is a "cache file system" which is supported for use on the back end. There
> >is some information about this here:
> >
> >  http://xrootd.slac.stanford.edu/doc/mps_config/mps_config.htm
> >
> >Unfortunately, I've not written any simple examples of that. (Note that
> >the documentation discusses a more general set of back end scripts to do
> >migration/purge of files staged from a MSS.)
> >
> >  Does this help with your problem?
> >
> >  (Note also that you can hide the details of the internal organization
> >on the server from the external clients with some of the other directives
> >like "localroot".)
> >
> >                                   Pete
> >
> >-------------------------------------------------------------------------
> >Peter Elmer     E-mail: [log in to unmask]      Phone: +41 (22) 767-4644
> >Address: CERN Division PPE, Bat. 32 2C-14, CH-1211 Geneva 23, Switzerland
> >-------------------------------------------------------------------------
> >
> >
> Hi Matt and Pete,
>
> we are using in our conf files export multiple directories and all data
> from these directives are accessible:
>
> xrootd.export /data0
> xrootd.export /data1
> xrootd.export /data2
> xrootd.export /home
>
> I also enlose the log file from redirector where you can see, that files
> (from /data1 and data2) are located and redirected to right node without
> using cache file system.
>
> 050227 12:14:22 28868 odc_Locate: user=starlib.782:12@rcas6002
> redirected to rcas6067.rcf.bnl.gov:1095 by xrdstar
> path=/data2/starlib/reco/productionCentral/FullField/P02ge/2001/318/st_physics_2318037_raw_0012.MuDst.root
> 050227 12:14:22 28868 odc_Receive: Server: Received from
> xrdstar.rcf.bnl.gov: 481 !try rcas6067.rcf.bnl.gov:1095
> 050227 12:14:22 28868 odc_Locate: user=starlib.782:12@rcas6002
> redirected to rcas6067.rcf.bnl.gov:1095 by xrdstar
> path=/data2/starlib/reco/productionCentral/FullField/P02ge/2001/318/st_physics_2318037_raw_0008.MuDst.root
> 050227 12:14:22 28868 odc_Receive: Server: Received from
> xrdstar.rcf.bnl.gov: 482 !try rcas6067.rcf.bnl.gov:1095
> 050227 12:14:22 28868 odc_Locate: user=starlib.782:12@rcas6002
> redirected to rcas6067.rcf.bnl.gov:1095 by xrdstar
> path=/data2/starlib/reco/productionCentral/FullField/P02ge/2001/318/st_physics_2318037_raw_0024.MuDst.root
> 050227 12:14:22 28868 odc_Receive: Server: Received from
> xrdstar.rcf.bnl.gov: 483 !try rcas6067.rcf.bnl.gov:1095
> 050227 12:14:22 28868 odc_Locate: user=starlib.782:12@rcas6002
> redirected to rcas6067.rcf.bnl.gov:1095 by xrdstar
> path=/data2/starlib/reco/productionCentral/FullField/P02ge/2001/318/st_physics_2318037_raw_0007.MuDst.root
> 050227 12:14:22 28868 odc_Receive: Server: Received from
> xrdstar.rcf.bnl.gov: 484 !try rcas6067.rcf.bnl.gov:1095
> 050227 12:14:22 28868 odc_Locate: user=starlib.782:12@rcas6002
> redirected to rcas6067.rcf.bnl.gov:1095 by xrdstar
> path=/data2/starlib/reco/productionCentral/FullField/P02ge/2001/318/st_physics_2318036_raw_0275.MuDst.root
> 050227 12:14:22 28868 odc_Receive: Server: Received from
> xrdstar.rcf.bnl.gov: 485 !try rcas6067.rcf.bnl.gov:1095
> 050227 12:14:22 28868 odc_Locate: user=starlib.782:12@rcas6002
> redirected to rcas6067.rcf.bnl.gov:1095 by xrdstar
> path=/data2/starlib/reco/productionCentral/FullField/P02ge/2001/318/st_physics_2318037_raw_0019.MuDst.root
> 050227 12:14:23 28868 odc_Receive: Server: Received from
> xrdstar.rcf.bnl.gov: 486 !try rcas6067.rcf.bnl.gov:1095
> 050227 12:14:23 28868 odc_Locate: user=starlib.782:12@rcas6002
> redirected to rcas6067.rcf.bnl.gov:1095 by xrdstar
> path=/data1/starlib/reco/MinBiasVertex/ReversedFullField/P02ge/2001/252/st_physics_2252022_raw_0134.MuDst.root
> 050227 12:14:23 28868 odc_Receive: Server: Received from
> xrdstar.rcf.bnl.gov: 487 !try rcas6067.rcf.bnl.gov:1095
> 050227 12:14:23 28868 odc_Locate: user=starlib.782:12@rcas6002
> redirected to rcas6067.rcf.bnl.gov:1095 by xrdstar
> path=/data1/starlib/reco/MinBiasVertex/ReversedFullField/P02ge/2001/252/st_physics_2252022_raw_0117.MuDst.root
> 050227 12:14:23 28868 odc_Receive: Server: Received from
> xrdstar.rcf.bnl.gov: 488 !try rcas6067.rcf.bnl.gov:1095
> 050227 12:14:23 28868 odc_Locate: user=starlib.782:12@rcas6002
> redirected to rcas6067.rcf.bnl.gov:1095 by xrdstar
> path=/data1/starlib/reco/MinBiasVertex/ReversedFullField/P02ge/2001/252/st_physics_2252022_raw_0102.MuDst.root
> 050227 12:14:23 28868 odc_Receive: Server: Received from
> xrdstar.rcf.bnl.gov: 489 !try rcas6067.rcf.bnl.gov:1095
> 050227 12:14:23 28868 odc_Locate: user=starlib.782:12@rcas6002
> redirected to rcas6067.rcf.bnl.gov:1095 by xrdstar
> path=/data1/starlib/reco/MinBiasVertex/ReversedFullField/P02ge/2001/252/st_physics_2252022_raw_0089.MuDst.root
>
>
>
>