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RH4 sendmail 8.13.1 queue mail when load average above 26

RH4 sendmail 8.13.1 queue mail when load average above 26

RH4 sendmail 8.13.1 queue mail when load average above 26


My Customer has a RH4 with sendmail box. Load Average is around 4 to 8 usually with some peaks.
We installed ReplicatorX RxRC (Client) which open about 20 threads in uninterruptible sleep state (we don't want to go too deep here now and this is not the direction we want to go).
In Linux each thread is counted into the Load Average value.
We then Adjusted the confQUEUE_LA and confREFUSE_LA in /etc/mail/sendmail.mc. This works fine up to Load Average of 25.
Above that value mail is just queuing in /var/spool/clientmqueue.

I spent a lot of time on this case and I have two possible ways to look at this:
1. A bug in sendmail
2. Some other params or components that effect or effected by high Load Average.

I would appreciate any idea....


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