In trying to debug periodic gate instability of CentOS, I noticed that it is using the prefork mpm, while Ubuntu is defaulting to the multi-threaded worker mpm. One of the problems seems related to 502 proxy errors from the TLS proxy. We see out-of-sync timestamps in the centos TLS proxy access logs, which might be innocent behaviour based on the prefork model or indicate something else. Before going too deep down this rabbit-hole, I think it is better for consistency to use the same mpm model on all our platforms, and start debugging from there. Change-Id: I9881f2e7d51fdd9fc0f7fb3e37179aa53171b531
13 KiB
13 KiB