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Hi Wei, Two proxies were setup at one point. I migrated from one machine to the next one. One of the proxy machines is also a data server so I wanted to have a standalone proxy machine. Doug Yang, Wei wrote: > Doug, if you have a single proxy, why the query returns two machines? > > regards, > Wei Yang | [log in to unmask] | 650-926-3338(O) > > > On Aug 31, 2011, at 6:27 AM, Doug Benjamin wrote: > >> Dear XRoot folks, >> >> I am seeing some odd behavior with a meta manager. The configuration is such that >> a simple proxy server is used to connect to a meta manager. I am testing the existence of >> a directory (which I know exists) on a data server and local redirector that are dual NIC's >> and are only a private network. All of the traffic between the local redirector and data server >> is through the private network only. >> >> I am testing for the directory through the meta manager from two different machines. 1) on the >> same network as the local redirector and one offsite. Here is my testing squence: >> >> 1) From Machine offsite (atl010.phy.duke.edu) >> >> [benjamin@atl010 ~]$ xrd grd.usatlas.org:1094 locateall /atlas/ANLASC_TEST/mc10_7TeV.105802.JF17_pythia_jet_filter.merge.NTUP_SUSY.e577_s933_s946_r1831_r2040_p428_tid281325_00 >> Not connected to any server. >> >> 2) shortly afterwards from machine on the same network as the local redirector and data server (onsite) (ascint0y.hep.anl.gov) >> >> [dbenjamin@ascint0y ~]$ date >> Wed Aug 31 07:37:40 CDT 2011 >> [dbenjamin@ascint0y ~]$ xrd glrd.usatlas.org:1094 locateall /atlas/ANLASC_TEST/mc10_7TeV.105802.JF17_pythia_jet_filter.merge.NTUP_SUSY.e577_s933_s946_r1831_r2040_p428_tid281325_00 >> >> >> ------------- Location #1 >> InfoType: kXrdcLocDataServer >> CanWrite: false >> Location: '130.202.173.4:1094' >> >> >> ------------- Location #2 >> InfoType: kXrdcLocDataServer >> CanWrite: false >> Location: '130.202.173.42:41094' >> >> >> 3) Immediately aftwards repeat the query on the offsite machine (note the machines are in two different time zones) >> [benjamin@atl010 ~]$ date >> Wed Aug 31 08:38:04 EDT 2011 >> [benjamin@atl010 ~]$ xrd glrd.usatlas.org:1094 locateall /atlas/ANLASC_TEST/mc10_7TeV.105802.JF17_pythia_jet_filter.merge.NTUP_SUSY.e577_s933_s946_r1831_r2040_p428_tid281325_00 >> >> >> ------------- Location #1 >> InfoType: kXrdcLocDataServer >> CanWrite: false >> Location: '130.202.173.4:1094' >> >> >> ------------- Location #2 >> InfoType: kXrdcLocDataServer >> CanWrite: false >> Location: '130.202.173.42:41094' >> >> Both machines (atl010.phy.duke.edu and ascint0y.phy.duke.edu) have the same time to within 2 seconds of each other. (except for the 1 hour time zone difference) >> >> Any Idea why the first time the remote machine did not get any answer back? >> >> Finally, how long does it talk for a meta manager to drop a data server (or proxy) from its list automatically. (The second proxy (130.202.173.42:41094) was turned off ~6 hours >> ago. >> >> Thanks, >> >> Doug Benjamin >> >>