[Spread-users] Tuning Windows XP for Spread

Doug Palmer Doug.Palmer at csiro.au
Thu Jul 12 00:41:38 EDT 2007

On Wed, 2007-07-11 at 11:01 +1000, Doug Palmer wrote:

> We've been running 4-5 spread daemons at High priority. However, we keep
> on seeing the tok_hurry count go up and cases where one spread daemon
> (apparently because it's the segment leader) suddenly develop a huge
> number of s_retrans counts, which just keeps on going up. At the same
> time, the spread deamons start growing in memory size and eventually
> lock up.

Further investigation reveals that the run-away s_retrans occurs when I
send a message of size 1266 bytes. All other messages are <1k. So I
suspect that something is going wrong in the message fragmentation. 

By switching around entries in spread.conf I can get the segment leader
to shift. However, the run-away s_retrans occurs on the system that sent
the message. So the segment leader idea is wrong.

When should tok_hurry be sent and by what? At the moment, the count goes
up on all daemons (from sptmonitor) every 2 seconds (well, 5 every 10
seconds). I get the impression that this shouldn't be happening.

What does s_ (or u_) retrans mean? This doesn't seem to be documented

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