This error message in fatalmonitor has increased quite a bit since this morning: https://logstash.wikimedia.org/#dashboard/temp/AVLMMv5-ptxhN1Xa6WNI
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- Mentioned Here
- T123711: reinstall eqiad memcache servers with jessie
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I have been working on replacing mcXXXX hosts with Jessie today, details in https://phabricator.wikimedia.org/T123711, so the errors that you are seeing are almost for sure due to my work :)
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confirmed, it is me doing maintenance, I just removed mc1007 from the pool and the timings match.
Closing this ticket, let's follow up in T123711.
Thanks!
Luca