Connection time out issues

[uscen...@gmail.com]

My setup: 

master running on ubuntu

3 x slaves running on OSX

I am running 3 builds at one time.

When I run all builds on the same slave then I have no issues. Tried it with all 3 slaves.

If I run one build one each slave then I end up with connection timed out issues.

Not sure why I have this issue. Anyone come across this issue? 

The help would be much appreciated.

Thanks.

[Per Arnold Blaasmo]

I am not sure if this is the same issue, but we had "random" timout issues.

We found the answer at
https://github.com/scala/scala-jenkins-infra/issues/26

The problem was related to Jumboframes and scatter-gather in ip.
We did run the server on CentOS 6 and the Linux was old enough tho have
an issue in the network driver.

When we turned of scatter-gather on the network interface the problem
went away.

So we used the command:
# ethtool -K eth0 sg off

To turn off scatter-gather.


Regards
Per A.

[uscen...@gmail.com]

Thanks pablaasmo,

The issue turned out to be in the Network IPS. Had to whitelist the urls I was hitting.