Eli Zaretskii wrote: > However, it looks like these problems still happen intermittently. > Just half an hour ago, all the 5 admindb pages of the Emacs mailing > lists timed out, but 5 minutes later they were displayed just fine.
I don't know why but apache2 wedged up on lists.gnu.org and the Monit utility restarted it. The problem is one of external influence. The machine is interacting with the Internet. When things heat up it has an effect. There is basically only three things that machine does. One is the exim mail transport agent. One is mailman. One is apache. Those three services all spawn multiple sub-processes depending upon what they are doing. If they all become active at the same time it bogs things down somewhat. And then the system it is running on is a virtual machine shared among the 22 virtual machines running on that hardware. If other systems are active then they all affect each other by using the shared CPU and shared I/O bandwidth. And then the root file system is on the storage area network on other systems accessed over the network. Sometimes the network on that side is problematic. I look at the Uptime Kuma for the site and about the same time there is a large column of failures across many of the systems. I don't know why. Something happened. Bob
