[hobbit] Still problems with writing client data while running several clients

Rolf Schrittenlocher Schrittenlocher at rz.uni-frankfurt.de
Mon Jan 30 11:08:32 CET 2006


as the problem persists and there were no replies to my last message 
(except for Matthias, thanks), I try again:

Is there any way to synchronize several instances of hobbit client on 
one machine with delay so that each sends client data to the server at a 
different point of time so that the server is able to write those data?
Starting those instances with delay does help accidently but not always. 
Any help or ideas are welcome!


The details (My old message):
we are running 1 to 3 clients on each host, one for $hostname and one
for each virtual host defined on the machine in order to get client data
like disk, cpu, etc. for $hostname and for each virtual host. Each
client is started using

Now I have the problem that client data of one or both clients is
neglected by the server. In rrd-data.log it shows:
2006-01-18 13:03:40 RRD error updating
/pica/ffm/com/sys/hobbit/hobbit/data/rrd/lbscgi2/netstat.rrd from illegal attempt to update using time 1137585820 when last
update time is 1137585820 (minimum one second step)
In rrd-status.log are similar entries like
2006-01-18 12:48:38 RRD error updating
/pica/ffm/com/sys/hobbit/hobbit/data/rrd/lbscgi2/memory.real.rrd from illegal attempt to update using time 1137584918 when last
update time is 1137584918 (minimum one second step)

The client data (disk, etc) for both becomes purple in bb.html.
Date for both clients is stored (sometimes) correctly:
-rw-r--r--   1 bb       prod       19576 Jan 18 12:43 memory.real.rrd
-rw-r--r--   1 bb       prod       19576 Jan 18 12:58 memory.real.rrd

I tried starting the clients with some seconds difference, that helps
for a certain time and then the problem reappears. What can I do?

kind regards

Mit freundlichen Gruessen
Rolf Schrittenlocher

HRZ/BDV, Senckenberganlage 31, 60054 Frankfurt
Tel: (49) 69 - 798 28908   Fax: (49) 69 798 2881
LBS: lbs-f at mlist.uni-frankfurt.de
Persoenlich: schritte at rz.uni-frankfurt.de

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