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ciao, any advice?

thanks

tom

On Fri, Aug 28, 2015 at 2:23 PM, Tommaso Boccali <[log in to unmask]> wrote:
ciao, 
the supervisor (started by hand with 
'cmsd -d -l /var/log/xrootd/superv.log -c /etc/xrootd/xrootd-redir-cms-superv.cfg  -k 7' and
'xrootd -d -l /var/log/xrootd/superv-x.log -c /etc/xrootd/xrootd-redir-cms-superv.cfg -k 7' ) 

fileis below *

in the manager cmsd.log I just see:

150828 14:08:52 28267 XrdSched: running main accept inq=0
150828 14:08:52 27343 ?:80@xrootd XrdPoll: FD 80 attached to poller 1; num=22
150828 14:08:52 27343 Protocol: Primary supervisor.28781:80@xrootd:33530 logged in suspended.
=====> Routing for xrootd.ba.infn.it: local pub4 prv4 
=====> Route all4: xrootd.ba.infn.it Dest=[::90.147.66.75]:33530


while in the supervisor cmsd  log I see

150828 14:08:52 28799 Pander supervisor services to xrootd.ba.infn.it:1213
150828 14:08:52 28799 Pander trying to connect to lvl 0 xrootd.ba.infn.it:1213
150828 14:08:52 28799 XrdInet: Connected to xrootd.ba.infn.it:1213
150828 14:08:52 28820 XrdXeq: Worker thread started
150828 14:08:52 28799 Add xrootd.ba.infn.it to manager config; id=0

which seems good, but then a series of:

...
150828 14:08:54 28799 manager.0:25@xrootd do_StateFWD: Path find failed for state /store/test/xrootd/T2_MY_UPM_BIRUNI/store/mc/HC/GenericTTbar/GEN-SIM-RECO/CMSSW_7_0_4_START70_V7-v1/00000/D00E55FF-F6CC-E311-9B51-02163E00E88E.root
150828 14:08:54 28799 Dispatch manager.0:25@xrootd for state dlen=148
150828 14:08:54 28799 manager.0:25@xrootd do_State: /store/test/xrootd/T2_MY_UPM_BIRUNI/store/mc/HC/GenericTTbar/GEN-SIM-RECO/CMSSW_7_0_4_START70_V7-v1/00000/4463C61D-03CD-E311-AF1A-02163E00F338.root
150828 14:08:54 28799 manager.0:25@xrootd do_StateFWD: Path find failed for state /store/test/xrootd/T2_MY_UPM_BIRUNI/store/mc/HC/GenericTTbar/GEN-SIM-RECO/CMSSW_7_0_4_START70_V7-v1/00000/4463C61D-03CD-E311-AF1A-02163E00F338.root
...


and nothing else.

So I have a few questions

0 - very naive: for the supervisor do I need to start cmsd AND xrootd? If I do not do that, I see no effect at all
1 - is the erorr expected with my config ?
2 - I did not set explicitly the port numbers to the supervisor, and they of course cannot be 1094/1213 since they are already taken by the manager. I just have
xrd.port any 

is that enough?

3 - should I see some servers being "moved" by the manager to the supervisor?
4 - atm I have not opened any additional port on the firewall, since with 'any' I do not know which port will be used. Should I open something?


thanks a lot and sorry for all the questions



*:

[root@xrootd xrootd]# cat /etc/xrootd/xrootd-redir-cms-superv.cfg 

xrd.port any 
all.role supervisor 
# The known managers
all.manager xrootd.ba.infn.it 1213

# Allow any path to be exported; this is further refined in the authfile.
all.export / r/w

# Hosts allowed to use this xrootd cluster
cms.allow host *
# Logging verbosity
xrootd.trace emsg login stall redirect
ofs.trace all -debug
xrd.trace all -debug 
cms.trace all -debug



On Thu, Aug 27, 2015 at 5:26 PM, Marian Zvada <[log in to unmask]> wrote:
Hi Tom,

I haven't tried it though, but looks good to me.

One more thing, we should not use thread limit by hard from whatever v4.x.x version, I think. This is well cared of within recent fixes I believe. I don't recall details right now but can search through if needed.

So, feel free remove the line "xrd.sched maxt 16000".

-Marian

On 8/27/15 3:49 AM, Tommaso Boccali wrote:
Ciao, I am trying to see if there is the need for a supervisor on one of
our CMS EU redirs.
In the logs, I never really see anything like 'If you suspect this,
check the manager’s log. It will contain warnings about orphaned data
servers'

so I am not sure we have a problem, but still we a re very close to the
64 limit so better to be proactive.


What I want to do as step #1 is to run the supervisor as an additional
daemon on the redirector (it is a test, I really want to see what
happens first, and the machine is big so should not be an issue)

I looked at the documentation below, but I have to admit it is a bit
obscure (to me).

So, I have a cmsd/xrootd (the eu redir) running on ports 1213/1094, and
redirecting "up" if needed (to the global redirector).
Starting from their config, I just wanted to prepare a config for the
supervisor.

The minimal one I am trying to guess from the documentation would be
===
xrd.port any
all.role supervisor
# The known managers
all.manager xrootd.ba.infn.it <http://xrootd.ba.infn.it> 1213

# Allow any path to be exported; this is further refined in the authfile.
all.export / r/w

# Hosts allowed to use this xrootd cluster
cms.allow host *
# Logging verbosity
xrootd.trace emsg login stall redirect
ofs.trace all -debug
xrd.trace all -debug
cms.trace all -debug

cms.fxhold 8h
xrd.sched maxt 16000
===

but again , this is a sort of guess .... Do you have an example of a
standalone cfg file for a supervisor?


thanks

tom

http://xrootd.org/doc/dev42/cms_config.htm#_Toc405927050

--
Tommaso Boccali
INFN Pisa

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--
Tommaso Boccali
INFN Pisa



--
Tommaso Boccali
INFN Pisa


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