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Hello,


I (and Jean-Yves) noticed a few oddities at GridKa:


1) There are two network interfaced on the redirector. The issue is that 
using the wrong one in the KanAccess file (the one that is not the same as 
in the xrootd config files) causes to crash the xrootd (and not olbd) 
proccess on the redirector.

The core file reveals:
> gdb /opt/xrootd/bin/xrootd core.9418
#0  0x0806349c in XrdNetwork::getHostName ()


2) Strange disk size in the olb redirector log file. I'm using the sep 04 
prod version.

050216 18:49:32 9419 olb_a2i: tot dsk value -1463812096 is too small
050216 18:49:32 9419 olb_Server: invalid response from f01-001-118.gridka.de:1094


3) Probably it's a result of the computing center's instability of 
last weekbut most of the dataservers are not registering with olbd on the
redirector. Only the dataservers that I restarted are now registering. The
olb logfile of the ones not registering are showing:

050211 00:00:00 20383 olb_Config: (c) 2004 SLAC olbd version 20040907-0403 executing as  Server
050211 14:33:02 20388 olb_Manager: Manager babar2 appears to be dead.
050211 14:35:15 20388 olb_Manager: Manager h^RBh^RB appears to be dead.
050211 15:03:05 1143 olb_Config: (c) 2004 SLAC olbd version 20040907-0403 initializing as Server
050211 15:03:05 1143 olb_Config: Server initialization completed.
050211 15:03:05 1155 olb_Start: Waiting for primary server to login.
050211 15:03:06 1157 olb_Admin_Login: Primary server 1142 logged in
050211 15:03:06 1143 olb_Server: Logged into babar2
050211 16:14:01 1149 olb_Manager: Manager babar2 appears to be dead.
050211 16:16:14 1149 olb_Manager: Manager h^RBh^RB appears to be dead.
050211 16:18:27 1149 olb_Manager: Manager p^p^ appears to be dead.
050211 16:20:40 1149 olb_Manager: Manager p^p^ appears to be dead.
050211 16:22:54 1149 olb_Manager: Manager p^p^ appears to be dead.
050211 16:25:07 1149 olb_Manager: Manager p^p^ appears to be dead.

Indeed, babar2 has been that day (11/02/2005) around 16:12. This message 
kept  going on in the log file until I restarted all the dataserver's 
processes yesterday.


4) I'm now going to install for the skimming outputs one write enabled nas 
box (with Peter we estimazted we need about 2GB there); using the latest 
xrootd version.


5) I'm also going to install xrootd on the 2 newly provided GPFS 
fileservers.


Sorry for missing the meeting this week. I got somehow messed up in the 
days after arriving to SLAC on Monday. Will there be a meeting next week?


-- Gregory


-------------- Dr. Gregory Schott --------------
   Institut fuer Experimentelle Kernphysik (IEKP)
       Universitaet Karlsruhe - Postfach 3640
             76021 Karlsruhe  (Germany)
              tel.: +49-(0)724782-3537
              fax.: +49-(0)724782-3414
             e-mail: [log in to unmask]
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