Recently, I discovered a bug on etcd which had a serious performance
impact. When etcd 3.0.x was built with golang 1.7.x, it was throwing
the following exception constantly:
This bug was introduced because of golang v1.7.x and was fixed in
etcd v3.1.x. In our kubernetes cluster configuration, we have some master
nodes which contain, etcd, kube-apiserver, kube-scheduler and
kube-controller-manager. Because of the above bug, the apiserver wasn't
responding due to high cpu load coming from etcd. So, in any application,
if etcd is running in powerless machine, will be unresponsive or if other
applications run in the same machine their performance will be affected.
I propose to add a test for etcd, configured with TLS certs similar to my
reproducer for this bug . The reasoning is that, this bug appeared only
when etcd was configured with TLS, other bugs might occur
with that setting in the future.
I'm new to the packaging process of fedora and I don't know where to