node_exporter lock up on nfs-file-06
nfs-file-06
paged as down but in fact node_exporter
was not responding, causing alertmanager to alert on it.
The error in the node_exporter
logs was:
2018-04-29_18:29:16.54629 fatal error: runtime·unlock: lock count
We should investigate this as I believe I saw it on a different nfs server the other day.
cc/ @bjk-gitlab @gl-infra