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Simply run the xrdfs command that timesout with tghe dollowing envar set

export XRD_LOGLEVEL=Debug

then we will see.

On Tue, 19 Sep 2023, Matevz Tadel wrote:

> On 9/19/23 01:25, Bockjoo Kim wrote:
>> 1093 port is served by the dCache door.
>>
>> Because file locations became imbalanced according to the top level redirector:
>>
>> https://urldefense.com/v3/__https://bockjoo.web.cern.ch/aaaRedirectorMonitoring.txt-20230912__;!!Mih3wA!DbVDtlzwirRdXXkn2PFPT2dyd9g6GU6x1_bUr3TDQ66wgtkhBkQWhZXVcUMakfPFWWKksfYBqwtwramru6C1$
>> where one can see the jobs at American sites are redirected to the EU regional
>> redirectors
>>
>> instead of the US regional redirector.
>
> But this can only happen due to a timeout, when static redirect kicks in, right?
>
>> xrdfs should work with or without '-d' option, no?
>
> Sure should ... but it was timing out for me for some reason (authenticating to
> redirectors at some level, I assumed ... but could be something else) and I
> thought this was also the reason why Yujun was getting an empty response for
> some queries.
>
> So I guess we should figure out where the timeouts / delays happen and why.
>
> Cheers,
> Matevz
>
>> Thanks,
>>
>> Bockjoo
>>
>> On 9/19/23 01:58, Matevz Tadel wrote:
>>> xrdmapc cmsxrootd2.fnal.gov:1094
>>> 1     Man cmsxrootd-site2.fnal.gov:1094
>>>             Srv cmsxrootd-site2.fnal.gov:1093
>>> 1     Man cmsxrootd-site3.fnal.gov:1094
>>>             Srv cmsxrootd-site3.fnal.gov:1093
>>>             Srv cmsxrootd-site3.fnal.gov:1092
>>> 1     Man cmsxrootd-site1.fnal.gov:1094
>>>             Srv cmsxrootd-site1.fnal.gov:1096
>>>             Srv cmsxrootd-site1.fnal.gov:1093
>>> ....
>>>
>>> Are those servers dCache doors?
>>>
>>> Things also seem to work better without the -d flag. Why are you using -d?
>>>
>>> Matevz
>>>
>>> On 9/18/23 09:46, Yujun Wu wrote:
>>>> Hi Andrew,
>>>>
>>>> Good morning.
>>>>
>>>> Thanks again for your help. All the client and server hosts have both IPv4 and
>>>> IPv6 addresses. When querying the cmsxrootd-site1.fnal.gov redirector directly.
>>>> I get:
>>>>
>>>> bash-4.2$ date; /usr/bin/xrdfs cmsxrootd-site1.fnal.gov:1094 locate -d
>>>>   /store/test/xrootd/T1_US_FNAL/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/AE237916-5D76-E711-A48C-FA163EEEBFED.root
>>>> Mon Sep 18 18:09:30 CEST 2023
>>>> cmsxrootd-site1.fnal.gov:1093 Server Read
>>>> bash-4.2$ date; /usr/bin/xrdfs cmsxrootd-site1.fnal.gov:1094 locate -d -m
>>>>   /store/test/xrootd/T1_US_FNAL/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/AE237916-5D76-E711-A48C-FA163EEEBFED.root
>>>> Mon Sep 18 18:09:40 CEST 2023
>>>> cmsxrootd-site1.fnal.gov:1093 Server Read
>>>> Both queries with/without "-m" option return hostname.
>>>>
>>>> ********
>>>> Also, for your info. Our cmsxrootd-site1.fnal.gov redirector at Port 1094 is
>>>> basically a manager for both cmsd and xrootd with two redirectors registered
>>>> with it:
>>>> one at Port 1093 and other at Port 1092 (their roles are: all.role server). If I
>>>> query them directly, I get:
>>>>
>>>> bash-4.2$ date; /usr/bin/xrdfs cmsxrootd-site1.fnal.gov:1093 locate -d
>>>>   /store/test/xrootd/T1_US_FNAL/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/AE237916-5D76-E711-A48C-FA163EEEBFED.root
>>>> Mon Sep 18 18:09:57 CEST 2023
>>>> [::131.225.205.75]:1093 Server ReadWrite
>>>>
>>>> bash-4.2$ date; /usr/bin/xrdfs cmsxrootd-site1.fnal.gov:1093 locate -d -m
>>>>   /store/test/xrootd/T1_US_FNAL/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/AE237916-5D76-E711-A48C-FA163EEEBFED.root
>>>> Mon Sep 18 18:10:07 CEST 2023
>>>> cmsxrootd-site1.fnal.gov:1093 Server ReadWrite
>>>> The first one returns IP address without "-m" optioin and 2^nd  one returns
>>>> hostname.
>>>> ---------------------------------------------------------------------------------------
>>>> Then, cmsxrootd-site1.fnal.gov manager registers with cmsxrootd.fnal.gov (An
>>>> alias for xrootd.unl.edu and cmsxrootd2.fnal.gov):
>>>> all.manager cmsxrootd-site1.fnal.gov:1213
>>>> all.manager meta all cmsxrootd.fnal.gov+:1213
>>>>
>>>> bash-4.2$ host cmsxrootd.fnal.gov
>>>> cmsxrootd.fnal.gov has address 131.225.184.17 (cmsxrootd2.fnal.gov)
>>>> cmsxrootd.fnal.gov has address 129.93.239.131(xrootd.unl.edu)
>>>> cmsxrootd.fnal.gov has IPv6 address
>>>> 2600:900:6:1101:5054:ff:fe00:70cb(xrootd.unl.edu)
>>>> cmsxrootd.fnal.gov has IPv6 address 2620:6a:0:187::184:17(cmsxrootd2.fnal.gov
>>>>
>>>>
>>>> bash-4.2$ date; /usr/bin/xrdfs cmsxrootd2.fnal.gov:1094 locate -d -m
>>>> /store/test/xrootd/T1_US_FNAL/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/AE237916-5D76-E711-A48C-FA163EEEBFED.root
>>>> Mon Sep 18 18:35:26 CEST 2023
>>>> cmsxrootd-site2.fnal.gov:1093 Server Read
>>>> cmsxrootd-site1.fnal.gov:1093 Server Read
>>>> cmsxrootd-site3.fnal.gov:1093 Server Read
>>>> bash-4.2$ date; /usr/bin/xrdfs cmsxrootd2.fnal.gov:1094 locate -d
>>>>   /store/test/xrootd/T1_US_FNAL/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/AE237916-5D76-E711-A48C-FA163EEEBFED.root
>>>> Mon Sep 18 18:35:36 CEST 2023
>>>> [ERROR] Server responded with an error: [3011] No valid location found
>>>>
>>>> The weirdest part is: xrootd.unl.edu returns the same result with and without
>>>> "-m":
>>>> bash-4.2$ date; /usr/bin/xrdfs xrootd.unl.edu:1094 locate -d
>>>>   /store/test/xrootd/T1_US_FNAL/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/AE237916-5D76-E711-A48C-FA163EEEBFED.root
>>>> Mon Sep 18 18:40:25 CEST 2023
>>>> cmsxrootd-site1.fnal.gov:1093 Server Read
>>>> cmsxrootd-site2.fnal.gov:1093 Server Read
>>>> cmsxrootd-site3.fnal.gov:1093 Server Read
>>>> bash-4.2$ date; /usr/bin/xrdfs xrootd.unl.edu:1094 locate -d -m
>>>>   /store/test/xrootd/T1_US_FNAL/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/AE237916-5D76-E711-A48C-FA163EEEBFED.root
>>>> Mon Sep 18 18:40:35 CEST 2023
>>>> cmsxrootd-site2.fnal.gov:1093 Server Read
>>>> cmsxrootd-site1.fnal.gov:1093 Server Read
>>>> cmsxrootd-site3.fnal.gov:1093 Server Read
>>>> ------------------------------------------------------------------
>>>>
>>>> This happens even after I put xrootd.unl.edu XRootD configuration file on
>>>> cmsxrootd2.fnal.gov.
>>>>
>>>> Could you please advise what could be the cause on this? Or, if there is an
>>>> option at server side that could force "-m" behavior? Thanks again for your
>>>> help.
>>>>
>>>>
>>>> Regards,
>>>> Yujun
>>>>
>>>>
>>>> --------------------------------------------------------------------------------
>>>> *From:* Andrew Hanushevsky <[log in to unmask]>
>>>> *Sent:* Friday, September 15, 2023 11:53 PM
>>>> *To:* Yujun Wu <[log in to unmask]>
>>>> *Subject:* Re: Help with a xrdfs query puzzle with "xrdfs locate -d"
>>>>   One more thing try doing a locate against cmsxrootd-site1.fnal.gov:1094
>>>> which in theory has the file.
>>>>
>>>> On Sat, 16 Sep 2023, Yujun Wu wrote:
>>>>
>>>>> Hi Andrew,
>>>>>
>>>>> Thank you for your help. Currently, CMS XRootD redirectors only allow access
>>>>> with voms proxy from /cms group.
>>>>>
>>>>> It seems all the files I tried have this issue. The following are two examples:
>>>>>
>>>>>
>>>>> [enstore@fndca2b ~]$ date; xrdfs cmsxrootd2.fnal.gov:1094 locate -d -m
>>>>> /store/test/xrootd/T1_US_FNAL/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/AE237916-5D76-E711-A48C-FA163EEEBFED.root
>>>>>
>>>>> Fri Sep 15 22:41:40 CDT 2023
>>>>>
>>>>> cmsxrootd-site3.fnal.gov:1093 Server Read
>>>>>
>>>>> cmsxrootd-site1.fnal.gov:1093 Server Read
>>>>>
>>>>> cmsxrootd-site2.fnal.gov:1093 Server Read
>>>>>
>>>>> [enstore@fndca2b ~]$ date; xrdfs cmsxrootd2.fnal.gov:1094 locate -d 
>>>>> /store/test/xrootd/T1_US_FNAL/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/AE237916-5D76-E711-A48C-FA163EEEBFED.root
>>>>>
>>>>> Fri Sep 15 22:41:56 CDT 2023
>>>>>
>>>>> [ERROR] Server responded with an error: [3011] No valid location found
>>>>>
>>>>>
>>>>> -------------
>>>>>
>>>>> [enstore@fndca2b ~]$ date; xrdfs cmsxrootd2.fnal.gov:1094 locate -d -m
>>>>> /store/test/xrootd/redirector/test-file
>>>>>
>>>>> Fri Sep 15 22:42:34 CDT 2023
>>>>>
>>>>> cmsxrootd-site3.fnal.gov:1092 Server Read
>>>>>
>>>>> cmsxrootd-site1.fnal.gov:1096 Server Read
>>>>>
>>>>> [enstore@fndca2b ~]$ date; xrdfs cmsxrootd2.fnal.gov:1094 locate -d 
>>>>> /store/test/xrootd/redirector/test-file
>>>>>
>>>>> Fri Sep 15 22:42:45 CDT 2023
>>>>>
>>>>> [ERROR] Server responded with an error: [3011] No valid location found
>>>>>
>>>>> -------------
>>>>> For the 2nd file, the log files showed:
>>>>> ###cmsxrootd2###
>>>>>
>>>>> [root@cmsxrootd2 tmp]# tail -n 100000 cmsd.log|grep test-file
>>>>>
>>>>> [root@cmsxrootd2 tmp]# tail -n 100000 xrootd.log|grep test-file
>>>>>
>>>>> 230915 22:42:34 17939 acc_Audit: enstore.233531:159@fndca2b grant host
>>>>> *@fndca2b.fnal.gov stat /store/test/xrootd/redirector/test-file
>>>>>
>>>>> 230915 22:42:34 17913 cms_Decode: cmsxrootd2 delays
>>>>> enstore.233531:159@fndca2b 1 /store/test/xrootd/redirector/test-file
>>>>>
>>>>> 230915 22:42:35 17939 acc_Audit: enstore.233531:159@fndca2b grant host
>>>>> *@fndca2b.fnal.gov stat /store/test/xrootd/redirector/test-file
>>>>>
>>>>> 230915 22:42:35 17913 cms_Decode: cmsxrootd2 sent enstore.233531:159@fndca2b
>>>>> 'Mrcmsxrootd-site1.fnal.gov:1094 Mrcmsxrootd-site3.fnal.gov:1094'
>>>>> /store/test/xrootd/redirector/test-file
>>>>>
>>>>> 230915 22:42:45 17869 acc_Audit: enstore.233544:463@fndca2b grant host
>>>>> *@fndca2b.fnal.gov stat /store/test/xrootd/redirector/test-file
>>>>>
>>>>> 230915 22:42:45 17913 cms_Decode: cmsxrootd2 sent enstore.233544:463@fndca2b
>>>>> 'Mr[2620:6a:0:8420::f8]:1094 Mr[2620:6a:0:8421::243]:1094'
>>>>> /store/test/xrootd/redirector/test-file
>>>>>
>>>>>
>>>>> ###cmsxrootd-site1###
>>>>>
>>>>>
>>>>>
>>>>> [root@cmsxrootd-site1 site]# tail -n 1000000 cmsd.log|grep test-file
>>>>>
>>>>> 230915 22:26:02 1955 manager.0:[log in to unmask] cms_do_State:
>>>>> /store/test/xrootd/T2_BR_SPRACE/store/user/jmsilva/1MiB-subscription-test-file.raw
>>>>>
>>>>> 230915 22:42:34 1953 manager.0:27@cmsxrootd2 cms_do_State:
>>>>> /store/test/xrootd/redirector/test-file
>>>>>
>>>>> 230915 22:42:34 13496 server.1580:30@cmsxrootd-site1:1096 cms_do_Have:
>>>>> /store/test/xrootd/redirector/test-file
>>>>>
>>>>> 230915 22:42:36 20735 enstore.233531:3840@fndca2b cms_do_Locate: 
>>>>> /store/test/xrootd/redirector/test-file
>>>>>
>>>>> [root@cmsxrootd-site1 site]# tail -n 1000000 xrootd.log|grep test-file
>>>>>
>>>>> 230915 22:42:36 31818 acc_Audit: enstore.233531:3840@fndca2b grant gsi
>>>>> [log in to unmask] stat /store/test/xrootd/redirector/test-file
>>>>>
>>>>> 230915 22:42:36 1944 cms_Decode: cmsxrootd-site1 sent
>>>>> enstore.233531:3840@fndca2b 'Srcmsxrootd-site1.fnal.gov:1096'
>>>>> /store/test/xrootd/redirector/test-file
>>>>>
>>>>> ###cmsxrootd-site3###
>>>>>
>>>>> [root@cmsxrootd-site3 site]# tail -n 1000000 cmsd.log|grep test-file
>>>>>
>>>>> 230915 22:26:02 33739 manager.0:[log in to unmask] cms_do_State:
>>>>> /store/test/xrootd/T2_BR_SPRACE/store/user/jmsilva/1MiB-subscription-test-file.raw
>>>>>
>>>>> 230915 22:42:34 33738 manager.0:31@cmsxrootd2 cms_do_State:
>>>>> /store/test/xrootd/redirector/test-file
>>>>>
>>>>> 230915 22:42:34 34190 server.33696:33@cmsxrootd-site3:1092 cms_do_Have:
>>>>> /store/test/xrootd/redirector/test-file
>>>>>
>>>>> 230915 22:42:36 34194 enstore.233531:49@fndca2b cms_do_Locate: 
>>>>> /store/test/xrootd/redirector/test-file
>>>>>
>>>>> [root@cmsxrootd-site3 site]# tail -n 1000000 xrootd.log|grep test-file
>>>>>
>>>>> 230915 22:42:36 33982 acc_Audit: enstore.233531:49@fndca2b grant gsi
>>>>> [log in to unmask] stat /store/test/xrootd/redirector/test-file
>>>>>
>>>>> 230915 22:42:36 33731 cms_Decode: cmsxrootd-site3 sent
>>>>> enstore.233531:49@fndca2b 'Srcmsxrootd-site3.fnal.gov:1092'
>>>>> /store/test/xrootd/redirector/test-file
>>>>>
>>>>> ------------
>>>>>
>>>>> So, the one without "-m" option didn't showed up in the cmxrootd-site1/3
>>>>> redirectors. Could it be possible this was due to IP addresses were sent
>>>>> instead of host names when not using "-m" option?
>>>>>
>>>>> Thanks again for your help on this.
>>>>>
>>>>>
>>>>> Regards,
>>>>> Yujun
>>>>> ________________________________
>>>>> From: Andrew Hanushevsky <[log in to unmask]>
>>>>> Sent: Friday, September 15, 2023 7:12 PM
>>>>> To: Yujun Wu <[log in to unmask]>
>>>>> Subject: Re: Help with a xrdfs query puzzle with "xrdfs locate -d"
>>>>>
>>>>> Well, that's strange because when I try it I always get
>>>>>
>>>>> Server responded with an error: [3011] No valid location found
>>>>>
>>>>> regardless of whether -m is there or not. Could you provide another file
>>>>> that should be present?
>>>>>
>>>>> On Fri, 15 Sep 2023, Yujun Wu wrote:
>>>>>
>>>>>> Good afternoon.
>>>>>>
>>>>>> Could XRootD developers please help with a xrdfs puzzle?
>>>>>>
>>>>>> Bockjoo first noticed. When we query our XRootD regional redirector
>>>>>> cmsxrootd2.fnal.gov, we were able to get locate results using "-m" option,
>>>>>> but no results without "-m" option:
>>>>>>
>>>>>> ### xrdfs locate -d with "-m" option
>>>>>>
>>>>>>
>>>>>> bash-4.2$ date; xrdfs cmsxrootd2.fnal.gov:1094 locate -d -m
>>>>>> /store/mc/RunIIFall17FSPrePremix/Neutrino_E-10_gun/GEN-SIM-DIGI-RAW/PUFor2016_94X_mcRun2_asymptotic_v3-v1/2810000/7AB76D28-6C1D-EE11-B331-FA163EEB94EB.root
>>>>>>
>>>>>> Fri Sep 15 21:22:52 CEST 2023
>>>>>>
>>>>>> cmsxrootd-site3.fnal.gov:1093 Server Read
>>>>>>
>>>>>> cmsxrootd-site2.fnal.gov:1093 Server Read
>>>>>>
>>>>>> cmsxrootd-site1.fnal.gov:1093 Server Read
>>>>>>
>>>>>> cmsio5.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>> cmsio7.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>> cmsio9.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>> cmsio4.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>> cmsio3.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>> cmsio8.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>> cmsio6.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>>
>>>>>> -------------------
>>>>>>
>>>>>> ### xrdfs locate -d without "-m" option
>>>>>>
>>>>>>
>>>>>> bash-4.2$ date; xrdfs cmsxrootd2.fnal.gov:1094 locate -d
>>>>>> /store/mc/RunIIFall17FSPrePremix/Neutrino_E-10_gun/GEN-SIM-DIGI-RAW/PUFor2016_94X_mcRun2_asymptotic_v3-v1/2810000/7AB76D28-6C1D-EE11-B331-FA163EEB94EB.root
>>>>>>
>>>>>> Fri Sep 15 21:27:13 CEST 2023
>>>>>>
>>>>>> [ERROR] Server responded with an error: [3011] No valid location found
>>>>>>
>>>>>>
>>>>>> --------------------
>>>>>>
>>>>>> On the server side, the first one showed:
>>>>>>
>>>>>> 230915 14:22:53 18227 acc_Audit: yujun.12664:[log in to unmask] grant
>>>>>> host *@lxplus734.cern.ch stat
>>>>>> /store/mc/RunIIFall17FSPrePremix/Neutrino_E-10_gun/GEN-SIM-DIGI-RAW/PUFor2016_94X_mcRun2_asymptotic_v3-v1/2810000/7AB76D28-6C1D-EE11-B331-FA163EEB94EB.root
>>>>>>
>>>>>> 230915 14:22:53 17913 cms_Receive: cmsxrootd2 125 bytes on 727534553
>>>>>>
>>>>>> 230915 14:22:53 17913 cms_Decode: cmsxrootd2 sent
>>>>>> yujun.12664:[log in to unmask] 'Mwcmsio2.rc.ufl.edu:1094
>>>>>> Mrcmsxrootd-site1.fnal.gov:1094 Mrcmsxrootd-site3.fnal.gov:1094
>>>>>> Mrcmsxrootd-site2.fnal.gov:1094'
>>>>>> /store/mc/RunIIFall17FSPrePremix/Neutrino_E-10_gun/GEN-SIM-DIGI-RAW/PUFor2016_94X_mcRun2_asymptotic_v3-v1/2810000/7AB76D28-6C1D-EE11-B331-FA163EEB94EB.root
>>>>>>
>>>>>> 230915 14:22:53 17913 cms_Receive: cmsxrootd2 32 bytes on 727535577
>>>>>>
>>>>>>
>>>>>>
>>>>>> While the 2nd one without "-m" option showed:
>>>>>>
>>>>>>
>>>>>> 230915 14:27:13 27864 acc_Audit: yujun.9149:[log in to unmask] grant
>>>>>> host *@lxplus734.cern.ch stat
>>>>>> /store/mc/RunIIFall17FSPrePremix/Neutrino_E-10_gun/GEN-SIM-DIGI-RAW/PUFor2016_94X_mcRun2_asymptotic_v3-v1/2810000/7AB76D28-6C1D-EE11-B331-FA163EEB94EB.root
>>>>>>
>>>>>> 230915 14:27:13 17913 cms_Receive: cmsxrootd2 135 bytes on 743171027
>>>>>>
>>>>>> 230915 14:27:13 17913 cms_Decode: cmsxrootd2 sent
>>>>>> yujun.9149:[log in to unmask]
>>>>>> 'Mw[2620:104:1f:1000:faf2:1eff:fed9:dd80]:1094 Mr[2620:6a:0:8420::f8]:1094
>>>>>> Mr[2620:6a:0:8421::243]:1094 Mr[2620:6a:0:8420::f9]:1094'
>>>>>> /store/mc/RunIIFall17FSPrePremix/Neutrino_E-10_gun/GEN-SIM-DIGI-RAW/PUFor2016_94X_mcRun2_asymptotic_v3-v1/2810000/7AB76D28-6C1D-EE11-B331-FA163EEB94EB.root
>>>>>>
>>>>>> 230915 14:27:13 17913 cms_Receive: cmsxrootd2 4 bytes on 743172051
>>>>>>
>>>>>>
>>>>>> ===================
>>>>>>
>>>>>>
>>>>>> As you can see, the successful one sent multiple hostnames while the failed
>>>>>> one sent multiple IP addresses:
>>>>>>
>>>>>> 230915 14:27:13 27864 acc_Audit: yujun.9149:[log in to unmask] grant
>>>>>> host *@lxplus734.cern.ch stat
>>>>>> /store/mc/RunIIFall17FSPrePremix/Neutrino_E-10_gun/GEN-SIM-DIGI-RAW/PUFor2016_94X_mcRun2_asymptotic_v3-v1/2810000/7AB76D28-6C1D-EE11-B331-FA163EEB94EB.root
>>>>>>
>>>>>> 230915 14:27:13 17913 cms_Receive: cmsxrootd2 135 bytes on 743171027
>>>>>>
>>>>>> 230915 14:27:13 17913 cms_Decode: cmsxrootd2 sent
>>>>>> yujun.9149:[log in to unmask]
>>>>>> 'Mw[2620:104:1f:1000:faf2:1eff:fed9:dd80]:1094 Mr[2620:6a:0:8420::f8]:1094
>>>>>> Mr[2620:6a:0:8421::243]:1094 Mr[2620:6a:0:8420::f9]:1094'
>>>>>> /store/mc/RunIIFall17FSPrePremix/Neutrino_E-10_gun/GEN-SIM-DIGI-RAW/PUFor2016_94X_mcRun2_asymptotic_v3-v1/2810000/7AB76D28-6C1D-EE11-B331-FA163EEB94EB.root
>>>>>>
>>>>>> 230915 14:27:13 17913 cms_Receive: cmsxrootd2 4 bytes on 743172051
>>>>>>
>>>>>>
>>>>>> ------------------------------------
>>>>>>
>>>>>>
>>>>>> In contrast, another USCMS regional redirector xrootd.unl.edu could return
>>>>>> results with and without "-m" option:
>>>>>>
>>>>>>
>>>>>> bash-4.2$ date; xrdfs xrootd.unl.edu:1094 locate -d
>>>>>> /store/mc/RunIIFall17FSPrePremix/Neutrino_E-10_gun/GEN-SIM-DIGI-RAW/PUFor2016_94X_mcRun2_asymptotic_v3-v1/2810000/7AB76D28-6C1D-EE11-B331-FA163EEB94EB.root
>>>>>>
>>>>>> Fri Sep 15 21:38:17 CEST 2023
>>>>>>
>>>>>> cmsxrootd-site3.fnal.gov:1093 Server Read
>>>>>>
>>>>>> cmsio5.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>> cmsio7.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>> cmsio9.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>> cmsio4.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>> cmsio3.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>> cmsio8.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>> cmsio6.rc.ufl.edu:1094 Server ReadWrite
>>>>>>
>>>>>> cmsxrootd-site1.fnal.gov:1093 Server Read
>>>>>>
>>>>>> cmsxrootd-site2.fnal.gov:1093 Server Read
>>>>>>
>>>>>>
>>>>>> I was told their log file showed hostnames were sent even without "-m" option.
>>>>>>
>>>>>>
>>>>>>
>>>>>> For cmsxrootd2.fnal.gov XRootD redirector, I added
>>>>>>
>>>>>>
>>>>>> xrd.network dnr
>>>>>>
>>>>>>
>>>>>> option in our server side xrootd.cfg but it seems IP addresses still were
>>>>>> sent. Could you please tell how I could force hostnames instead of IP
>>>>>> addresses to be sent
>>>>>>
>>>>>> when running "xrdfs cmsxrootd2.fnal.gov:1094 locate -d" command?
>>>>>>
>>>>>>
>>>>>> Thanks in advance for any advice on this.
>>>>>>
>>>>>>
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Yujun
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
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