The _47 weekly release failed trying to tag git repos on all 3 attempts. It seems that every attempt was being scheduled on jenkins-el7-4 and there was some sort of jenkins remote communication error:

Cannot contact jenkins-el7-4: java.io.IOException: Remote call on JNLP4-connect connection from ip-192-168-123-181.ec2.internal/192.168.123.181:48368 failed

This node (as were all el7 nodes) was restarted last Wednesday as part of DM-12782, which may some how have triggered this new issue.

I noticed something funky was going on over the weekend and took that node offline at Nov 25, 2017 8:04:56 AM. However, the weekly release still needs to be salvaged and the problem with that build node diagnosed.