LISTSERV 16.5 - XROOTD-L Archives

Hi Andrew,

      It doesn't work. atlas-bkp1 manager still dropping nodes again.
In supervisor, I still haven't seen any dataserver registered. I said
"I updated the ntp"  because you said "the log timestamp do not
overlap".

Wen

On Sat, Dec 12, 2009 at 9:33 PM, Andrew Hanushevsky
<[log in to unmask]> wrote:
> Hi Wen,
>
> Do you mean that everything is now working? It could be that you removed the
> xrd.timeout directive. That really could cause problems. As for the delays,
> that is normal when the redirector thinks something is going wrong. The
> strategy is to delay clients until it can get back to a stable
> configuration. This usually prevents jobs from crashing during stressful
> periods.
>
> Andy
>
> On Sat, 12 Dec 2009, wen guan wrote:
>
>> Hi  Andrew,
>>
>>   I restarted it to do supervisor test.  Also because xrootd manager
>> frequently doesn't response. (*) is the cms.log, the file select is
>> delayed again and again. When do a restart, all things are fine. Now I
>> am trying to find a clue about it.
>>
>> (*)
>> 091212 00:00:19 21318 slot3.14949:[log in to unmask] do_Select: wc
>>
>> /atlas/xrootd/users/fang/MC8.108004.PythiaPhotonJet4.7TeV.e444_s479_r635_dmp81_tid001090/LOG/dig.001090._000066.log.2
>> 091212 00:00:19 21318 Select seeking
>>
>> /atlas/xrootd/users/fang/MC8.108004.PythiaPhotonJet4.7TeV.e444_s479_r635_dmp81_tid001090/LOG/dig.001090._000066.log.2
>> 091212 00:00:19 21318 UnkFile rc=1
>>
>> path=/atlas/xrootd/users/fang/MC8.108004.PythiaPhotonJet4.7TeV.e444_s479_r635_dmp81_tid001090/LOG/dig.001090._000066.log.2
>> 091212 00:00:19 21318 slot3.14949:[log in to unmask] do_Select:
>> delay 5
>> /atlas/xrootd/users/fang/MC8.108004.PythiaPhotonJet4.7TeV.e444_s479_r635_dmp81_tid001090/LOG/dig.001090._000066.log.2
>> 091212 00:00:19 21318 XrdLink: Setting link ref to 2+-1 post=0
>> 091212 00:00:19 21318 Dispatch redirector.21313:14@atlas-bkp2 for
>> select dlen=166
>> 091212 00:00:19 21318 XrdLink: Setting link ref to 1+1 post=0
>> 091212 00:00:19 21318 XrdSched: running redirector inq=0
>>
>>
>> There is no core file. I copied a new copies of the logs to the link
>> below.
>> http://higgs03.cs.wisc.edu/wguan/
>>
>> Wen
>>
>> On Sat, Dec 12, 2009 at 3:16 AM, Andrew Hanushevsky
>> <[log in to unmask]> wrote:
>>>
>>> Hi Wen,
>>>
>>> I see in the server log that it is restarting often. Could you take a
>>> look
>>> in the c193 to see if you have any core files? Also please make sure that
>>> core files are enabled as Linux defaults the size to 0. The first step
>>> here
>>> is to find out why your servers are restarting.
>>>
>>> Andy
>>>
>>> On Sat, 12 Dec 2009, wen guan wrote:
>>>
>>>> Hi Andrew,
>>>>
>>>>  the logs can be found here. From the log you can see atlas-bkp1
>>>> manager are dropping nodes again and again which tries to connect to
>>>> it.
>>>>  http://higgs03.cs.wisc.edu/wguan/
>>>>
>>>>
>>>> On Fri, Dec 11, 2009 at 11:41 PM, Andrew Hanushevsky
>>>> <[log in to unmask]> wrote:
>>>>>
>>>>> Hi Wen, Could you start everything up and provide me a pointer to the
>>>>> manager log file, supervisor log file, and one data server logfile all
>>>>> of
>>>>> which cover the same time-frame (from start to some point where you
>>>>> think
>>>>> things are working or not). That way I can see what is happening. At
>>>>> the
>>>>> moment I only see two "bad" things in the config file:
>>>>>
>>>>> 1) Only atlas-bkp1.cs.wisc.edu is designated as a manager but you
>>>>> claim,
>>>>> via
>>>>> the all.manager directive, that there are three (bkp2 and bkp3). While
>>>>> it
>>>>> should work, the log file will be dense with error messages. Please
>>>>> correct
>>>>> this to be consistent and make it easier to see real errors.
>>>>
>>>> This is not a problem for me. Because this config is used in
>>>> dataserver. In manager, I updated the if atlas-bkp1.cs.wisc.edu to
>>>> atlas-bkp2 or something. This is a history problem. at first only
>>>> atlas-bkp1 is used.  atlas-bkp2 and atlas-bkp3 are added  later.
>>>>
>>>>> 2) Please use cms.space not olb.space (for historical reasons the
>>>>> latter
>>>>> is
>>>>> still accepted and over-rides the former, but that will soon end), and
>>>>> please use only one (the config file uses both directives).
>>>>
>>>> yes. I should remove this line. in fact cms.space is in the cfg too.
>>>>
>>>>
>>>> Thanks
>>>> Wen
>>>>
>>>>> The xrootd has an internal mechanism to connect servers with
>>>>> supervisors
>>>>> to
>>>>> allow for maximum reliability. You cannot change that algorithm and
>>>>> there
>>>>> is
>>>>> no need to do so. You should *never* tell anyone to directly connect to
>>>>> a
>>>>> supervisor. If you do, you will likely get unreachable nodes.
>>>>>
>>>>> As for dropping data servers, it would appear to me, given the flurry
>>>>> of
>>>>> such activity, that something either crashed or was restarted. That's
>>>>> why
>>>>> it
>>>>> would be good to see the complete log of each one of the entities.
>>>>>
>>>>> Andy
>>>>>
>>>>> On Fri, 11 Dec 2009, wen guan wrote:
>>>>>
>>>>>> Hi Andrew,
>>>>>>
>>>>>>    I read the document. and write a config
>>>>>> file(http://wisconsin.cern.ch/~wguan/xrdcluster.cfg).
>>>>>>    I used my conf, I can see manager is dispatch message to
>>>>>> supervisor. But I cannot see any dataserver tries to connect to the
>>>>>> supervisor. At the same time, in the manager's log, I can see some
>>>>>> dataserver are Dropped.
>>>>>>   How does xrootd decide which dataserver will connect supervisor?
>>>>>> should I specify some dataservers to connect the supervisor?
>>>>>>
>>>>>>
>>>>>> (*) supervisor log
>>>>>> 091211 15:07:00 30028 Dispatch manager.0:20@atlas-bkp2 for state
>>>>>> dlen=42
>>>>>> 091211 15:07:00 30028 manager.0:20@atlas-bkp2 do_State:
>>>>>> /atlas/xrootd/users/wguan/test/test131141
>>>>>> 091211 15:07:00 30028 manager.0:20@atlas-bkp2 do_StateFWD: Path find
>>>>>> failed for state /atlas/xrootd/users/wguan/test/test131141
>>>>>>
>>>>>> (*)manager log
>>>>>> 091211 04:13:24 15661 Admit c185.chtc.wisc.edu TSpace=5587GB NumFS=1
>>>>>> FSpace=5693644MB MinFR=57218MB Util=0
>>>>>> 091211 04:13:24 15661 Admit c185.chtc.wisc.edu adding path: w /atlas
>>>>>> 091211 04:13:24 15661 server.10585:[log in to unmask]:1094
>>>>>> do_Space: 5696231MB free; 0% util
>>>>>> 091211 04:13:24 15661 Protocol:
>>>>>> server.10585:[log in to unmask]:1094 logged in.
>>>>>> 091211 04:13:24 001 XrdInet: Accepted connection from
>>>>>> [log in to unmask]
>>>>>> 091211 04:13:24 15661 XrdSched: running ?:[log in to unmask] inq=0
>>>>>> 091211 04:13:24 15661 XrdProtocol: matched protocol cmsd
>>>>>> 091211 04:13:24 15661 ?:[log in to unmask] XrdPoll: FD 79 attached
>>>>>> to poller 2; num=22
>>>>>> 091211 04:13:24 15661 Add server.21739:[log in to unmask] bumps
>>>>>> server.15905:[log in to unmask]:1094 #63
>>>>>> 091211 04:13:24 15661 Update Counts Parm1=-1 Parm2=0
>>>>>> 091211 04:13:24 15661 Drop_Node:
>>>>>> server.15905:[log in to unmask]:1094 dropped.
>>>>>> 091211 04:13:24 15661 Add Shoved
>>>>>> server.21739:[log in to unmask]:1094 to cluster; id=63.78; num=64;
>>>>>> min=51
>>>>>> 091211 04:13:24 15661 Update Counts Parm1=1 Parm2=0
>>>>>> 091211 04:13:24 15661 Admit c187.chtc.wisc.edu TSpace=5587GB NumFS=1
>>>>>> FSpace=5721854MB MinFR=57218MB Util=0
>>>>>> 091211 04:13:24 15661 Admit c187.chtc.wisc.edu adding path: w /atlas
>>>>>> 091211 04:13:24 15661 server.21739:[log in to unmask]:1094
>>>>>> do_Space: 5721854MB free; 0% util
>>>>>> 091211 04:13:24 15661 Protocol:
>>>>>> server.21739:[log in to unmask]:1094 logged in.
>>>>>> 091211 04:13:24 15661 XrdLink: Unable to recieve from
>>>>>> c187.chtc.wisc.edu; connection reset by peer
>>>>>> 091211 04:13:24 15661 Update Counts Parm1=-1 Parm2=0
>>>>>> 091211 04:13:24 15661 XrdSched: scheduling drop node in 60 seconds
>>>>>> 091211 04:13:24 15661 Remove_Node
>>>>>> server.21739:[log in to unmask]:1094 node 63.78
>>>>>> 091211 04:13:24 15661 Protocol: server.21739:[log in to unmask]
>>>>>> logged
>>>>>> out.
>>>>>> 091211 04:13:24 15661 server.21739:[log in to unmask] XrdPoll: FD
>>>>>> 79 detached from poller 2; num=21
>>>>>> 091211 04:13:27 15661 Dispatch server.24718:[log in to unmask]:1094
>>>>>> for status dlen=0
>>>>>> 091211 04:13:27 15661 server.24718:[log in to unmask]:1094
>>>>>> do_Status:
>>>>>> suspend
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=-1 Parm2=0
>>>>>> 091211 04:13:27 15661 Node: c177.chtc.wisc.edu service suspended
>>>>>> 091211 04:13:27 15661 XrdLink: No RecvAll() data from
>>>>>> c177.chtc.wisc.edu
>>>>>> FD=16
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=0 Parm2=0
>>>>>> 091211 04:13:27 15661 Remove_Node
>>>>>> server.24718:[log in to unmask]:1094 node 0.3
>>>>>> 091211 04:13:27 15661 Protocol: server.21656:[log in to unmask]
>>>>>> logged
>>>>>> out.
>>>>>> 091211 04:13:27 15661 server.21656:[log in to unmask] XrdPoll: FD
>>>>>> 16 detached from poller 2; num=20
>>>>>> 091211 04:13:27 15661 XrdLink: No RecvAll() data from
>>>>>> c179.chtc.wisc.edu
>>>>>> FD=21
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=-1 Parm2=0
>>>>>> 091211 04:13:27 15661 Remove_Node
>>>>>> server.17065:[log in to unmask]:1094 node 1.4
>>>>>> 091211 04:13:27 15661 Protocol: server.7978:[log in to unmask]
>>>>>> logged
>>>>>> out.
>>>>>> 091211 04:13:27 15661 server.7978:[log in to unmask] XrdPoll: FD 21
>>>>>> detached from poller 1; num=21
>>>>>> 091211 04:13:27 15661 State: Status changed to suspended
>>>>>> 091211 04:13:27 15661 Send status to redirector.15656:14@atlas-bkp2
>>>>>> 091211 04:13:27 15661 Dispatch server.12937:[log in to unmask]:1094
>>>>>> for status dlen=0
>>>>>> 091211 04:13:27 15661 server.12937:[log in to unmask]:1094
>>>>>> do_Status:
>>>>>> suspend
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=-1 Parm2=0
>>>>>> 091211 04:13:27 15661 Node: c182.chtc.wisc.edu service suspended
>>>>>> 091211 04:13:27 15661 XrdLink: No RecvAll() data from
>>>>>> c182.chtc.wisc.edu
>>>>>> FD=19
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=0 Parm2=0
>>>>>> 091211 04:13:27 15661 Remove_Node
>>>>>> server.12937:[log in to unmask]:1094 node 7.10
>>>>>> 091211 04:13:27 15661 Protocol: server.26620:[log in to unmask]
>>>>>> logged
>>>>>> out.
>>>>>> 091211 04:13:27 15661 server.26620:[log in to unmask] XrdPoll: FD
>>>>>> 19 detached from poller 2; num=19
>>>>>> 091211 04:13:27 15661 Dispatch server.10842:[log in to unmask]:1094
>>>>>> for status dlen=0
>>>>>> 091211 04:13:27 15661 server.10842:[log in to unmask]:1094
>>>>>> do_Status:
>>>>>> suspend
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=-1 Parm2=0
>>>>>> 091211 04:13:27 15661 Node: c178.chtc.wisc.edu service suspended
>>>>>> 091211 04:13:27 15661 XrdLink: No RecvAll() data from
>>>>>> c178.chtc.wisc.edu
>>>>>> FD=15
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=0 Parm2=0
>>>>>> 091211 04:13:27 15661 Remove_Node
>>>>>> server.10842:[log in to unmask]:1094 node 9.12
>>>>>> 091211 04:13:27 15661 Protocol: server.11901:[log in to unmask]
>>>>>> logged
>>>>>> out.
>>>>>> 091211 04:13:27 15661 server.11901:[log in to unmask] XrdPoll: FD
>>>>>> 15 detached from poller 1; num=20
>>>>>> 091211 04:13:27 15661 Dispatch server.5535:[log in to unmask]:1094
>>>>>> for status dlen=0
>>>>>> 091211 04:13:27 15661 server.5535:[log in to unmask]:1094
>>>>>> do_Status:
>>>>>> suspend
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=-1 Parm2=0
>>>>>> 091211 04:13:27 15661 Node: c181.chtc.wisc.edu service suspended
>>>>>> 091211 04:13:27 15661 XrdLink: No RecvAll() data from
>>>>>> c181.chtc.wisc.edu
>>>>>> FD=17
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=0 Parm2=0
>>>>>> 091211 04:13:27 15661 Remove_Node
>>>>>> server.5535:[log in to unmask]:1094 node 5.8
>>>>>> 091211 04:13:27 15661 Protocol: server.13984:[log in to unmask]
>>>>>> logged
>>>>>> out.
>>>>>> 091211 04:13:27 15661 server.13984:[log in to unmask] XrdPoll: FD
>>>>>> 17 detached from poller 0; num=21
>>>>>> 091211 04:13:27 15661 Dispatch server.23711:[log in to unmask]:1094
>>>>>> for status dlen=0
>>>>>> 091211 04:13:27 15661 server.23711:[log in to unmask]:1094
>>>>>> do_Status:
>>>>>> suspend
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=-1 Parm2=0
>>>>>> 091211 04:13:27 15661 Node: c183.chtc.wisc.edu service suspended
>>>>>> 091211 04:13:27 15661 XrdLink: No RecvAll() data from
>>>>>> c183.chtc.wisc.edu
>>>>>> FD=22
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=0 Parm2=0
>>>>>> 091211 04:13:27 15661 Remove_Node
>>>>>> server.23711:[log in to unmask]:1094 node 8.11
>>>>>> 091211 04:13:27 15661 Protocol: server.27735:[log in to unmask]
>>>>>> logged
>>>>>> out.
>>>>>> 091211 04:13:27 15661 server.27735:[log in to unmask] XrdPoll: FD
>>>>>> 22 detached from poller 2; num=18
>>>>>> 091211 04:13:27 15661 XrdLink: No RecvAll() data from
>>>>>> c184.chtc.wisc.edu
>>>>>> FD=20
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=-1 Parm2=0
>>>>>> 091211 04:13:27 15661 Remove_Node
>>>>>> server.4131:[log in to unmask]:1094 node 3.6
>>>>>> 091211 04:13:27 15661 Protocol: server.26787:[log in to unmask]
>>>>>> logged
>>>>>> out.
>>>>>> 091211 04:13:27 15661 server.26787:[log in to unmask] XrdPoll: FD
>>>>>> 20 detached from poller 0; num=20
>>>>>> 091211 04:13:27 15661 Dispatch server.10585:[log in to unmask]:1094
>>>>>> for status dlen=0
>>>>>> 091211 04:13:27 15661 server.10585:[log in to unmask]:1094
>>>>>> do_Status:
>>>>>> suspend
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=-1 Parm2=0
>>>>>> 091211 04:13:27 15661 Node: c185.chtc.wisc.edu service suspended
>>>>>> 091211 04:13:27 15661 XrdLink: No RecvAll() data from
>>>>>> c185.chtc.wisc.edu
>>>>>> FD=23
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=0 Parm2=0
>>>>>> 091211 04:13:27 15661 Remove_Node
>>>>>> server.10585:[log in to unmask]:1094 node 6.9
>>>>>> 091211 04:13:27 15661 Protocol: server.8524:[log in to unmask]
>>>>>> logged
>>>>>> out.
>>>>>> 091211 04:13:27 15661 server.8524:[log in to unmask] XrdPoll: FD 23
>>>>>> detached from poller 0; num=19
>>>>>> 091211 04:13:27 15661 Dispatch server.20264:[log in to unmask]:1094
>>>>>> for status dlen=0
>>>>>> 091211 04:13:27 15661 server.20264:[log in to unmask]:1094
>>>>>> do_Status:
>>>>>> suspend
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=-1 Parm2=0
>>>>>> 091211 04:13:27 15661 Node: c180.chtc.wisc.edu service suspended
>>>>>> 091211 04:13:27 15661 XrdLink: No RecvAll() data from
>>>>>> c180.chtc.wisc.edu
>>>>>> FD=18
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=0 Parm2=0
>>>>>> 091211 04:13:27 15661 Remove_Node
>>>>>> server.20264:[log in to unmask]:1094 node 4.7
>>>>>> 091211 04:13:27 15661 Protocol: server.14636:[log in to unmask]
>>>>>> logged
>>>>>> out.
>>>>>> 091211 04:13:27 15661 server.14636:[log in to unmask] XrdPoll: FD
>>>>>> 18 detached from poller 1; num=19
>>>>>> 091211 04:13:27 15661 Dispatch server.1656:[log in to unmask]:1094
>>>>>> for status dlen=0
>>>>>> 091211 04:13:27 15661 server.1656:[log in to unmask]:1094
>>>>>> do_Status:
>>>>>> suspend
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=-1 Parm2=0
>>>>>> 091211 04:13:27 15661 Node: c186.chtc.wisc.edu service suspended
>>>>>> 091211 04:13:27 15661 XrdLink: No RecvAll() data from
>>>>>> c186.chtc.wisc.edu
>>>>>> FD=24
>>>>>> 091211 04:13:27 15661 Update Counts Parm1=0 Parm2=0
>>>>>> 091211 04:13:27 15661 Remove_Node
>>>>>> server.1656:[log in to unmask]:1094 node 2.5
>>>>>> 091211 04:13:27 15661 Protocol: server.7849:[log in to unmask]
>>>>>> logged
>>>>>> out.
>>>>>> 091211 04:13:27 15661 server.7849:[log in to unmask] XrdPoll: FD 24
>>>>>> detached from poller 1; num=18
>>>>>> 091211 04:14:14 15661 XrdSched: running drop node inq=0
>>>>>> 091211 04:14:14 15661 XrdSched: running drop node inq=0
>>>>>> 091211 04:14:14 15661 XrdSched: running drop node inq=0
>>>>>> 091211 04:14:14 15661 XrdSched: running drop node inq=0
>>>>>> 091211 04:14:14 15661 XrdSched: running drop node inq=0
>>>>>> 091211 04:14:14 15661 XrdSched: running drop node inq=0
>>>>>> 091211 04:14:14 15661 XrdSched: running drop node inq=0
>>>>>> 091211 04:14:14 15661 XrdSched: running drop node inq=0
>>>>>> 091211 04:14:14 15661 XrdSched: running drop node inq=0
>>>>>> 091211 04:14:14 15661 XrdSched: running drop node inq=0
>>>>>> 091211 04:14:14 15661 XrdSched: scheduling drop node in 13 seconds
>>>>>> 091211 04:14:14 15661 XrdSched: scheduling drop node in 13 seconds
>>>>>> 091211 04:14:14 15661 XrdSched: scheduling drop node in 13 seconds
>>>>>> 091211 04:14:14 15661 XrdSched: scheduling drop node in 13 seconds
>>>>>> 091211 04:14:14 15661 XrdSched: scheduling drop node in 13 seconds
>>>>>> 091211 04:14:14 15661 XrdSched: scheduling drop node in 13 seconds
>>>>>> 091211 04:14:14 15661 XrdSched: scheduling drop node in 13 seconds
>>>>>> 091211 04:14:14 15661 XrdSched: scheduling drop node in 13 seconds
>>>>>> 091211 04:14:14 15661 XrdSched: scheduling drop node in 13 seconds
>>>>>> 091211 04:14:14 15661 XrdSched: scheduling drop node in 13 seconds
>>>>>> 091211 04:14:24 15661 XrdSched: running drop node inq=1
>>>>>> 091211 04:14:24 15661 XrdSched: running drop node inq=1
>>>>>> 091211 04:14:24 15661 Drop_Node 63.66 cancelled.
>>>>>> 091211 04:14:24 15661 XrdSched: running drop node inq=1
>>>>>> 091211 04:14:24 15661 Drop_Node 63.68 cancelled.
>>>>>> 091211 04:14:24 15661 XrdSched: running drop node inq=1
>>>>>> 091211 04:14:24 15661 Drop_Node 63.69 cancelled.
>>>>>> 091211 04:14:24 15661 Drop_Node 63.67 cancelled.
>>>>>> 091211 04:14:24 15661 XrdSched: running drop node inq=1
>>>>>> 091211 04:14:24 15661 Drop_Node 63.70 cancelled.
>>>>>> 091211 04:14:24 15661 XrdSched: running drop node inq=1
>>>>>> 091211 04:14:24 15661 Drop_Node 63.71 cancelled.
>>>>>> 091211 04:14:24 15661 XrdSched: running drop node inq=1
>>>>>> 091211 04:14:24 15661 Drop_Node 63.72 cancelled.
>>>>>> 091211 04:14:24 15661 XrdSched: running drop node inq=1
>>>>>> 091211 04:14:24 15661 Drop_Node 63.73 cancelled.
>>>>>> 091211 04:14:24 15661 XrdSched: running drop node inq=1
>>>>>> 091211 04:14:24 15661 Drop_Node 63.74 cancelled.
>>>>>> 091211 04:14:24 15661 XrdSched: running drop node inq=1
>>>>>> 091211 04:14:24 15661 Drop_Node 63.75 cancelled.
>>>>>> 091211 04:14:24 15661 XrdSched: running drop node inq=1
>>>>>> 091211 04:14:24 15661 Drop_Node 63.76 cancelled.
>>>>>> 091211 04:14:24 15661 XrdSched: Now have 68 workers
>>>>>> 091211 04:14:24 15661 XrdSched: running drop node inq=0
>>>>>> 091211 04:14:24 15661 Drop_Node 63.77 cancelled.
>>>>>> 091211 04:14:24 15661 XrdSched: running drop node inq=0
>>>>>>
>>>>>> Wen
>>>>>>
>>>>>>
>>>>>> On Fri, Dec 11, 2009 at 9:50 PM, Andrew Hanushevsky
>>>>>> <[log in to unmask]> wrote:
>>>>>>>
>>>>>>> Hi Wen,
>>>>>>>
>>>>>>> To go past 64 data servers you will need to setup one or more
>>>>>>> supervisors.
>>>>>>> This does not logically change the current configuration you have.
>>>>>>> You
>>>>>>> only
>>>>>>> need to configure one or more *new* servers (or at least xrootd
>>>>>>> processes)
>>>>>>> whose role is supervisor. We'd like them to run in separate machines
>>>>>>> for
>>>>>>> reliability purposes, but they could run on the manager node as long
>>>>>>> as
>>>>>>> you
>>>>>>> give each one a unique instance name (i.e., -n option).
>>>>>>>
>>>>>>> The front part of the cmsd reference explains how to do this.
>>>>>>>
>>>>>>> http://xrootd.slac.stanford.edu/doc/prod/cms_config.htm
>>>>>>>
>>>>>>> Andy
>>>>>>>
>>>>>>> On Fri, 11 Dec 2009, wen guan wrote:
>>>>>>>
>>>>>>>> Hi Andrew,
>>>>>>>>
>>>>>>>>   Is there any change to configure xrootd with more than 65
>>>>>>>> machines? I used the configure below but it doesn't work.  Should I
>>>>>>>> configure some machines' manager to be supvervisor?
>>>>>>>>
>>>>>>>> http://wisconsin.cern.ch/~wguan/xrdcluster.cfg
>>>>>>>>
>>>>>>>>
>>>>>>>> Wen
>>>>>>>>
>>>>>>>
>>>>>
>>>
>