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hjacobs / kube-ops-view

Kubernetes Operational View - read-only system dashboard for multiple K8s clusters
https://kubernetes-operational-view.readthedocs.io/
GNU General Public License v3.0
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Opsview hangs after some time #251

Open megabreit opened 4 years ago

megabreit commented 4 years ago

Opsview hangs after some unknown (longer) time displaying only the top menu (color and sort options) and no cluster anymore.

netstat in the kubeopsview container shows >2500 establisched connections to the redis pod: netstat|grep kube-ops-view-6b6b5b6964-mhccj|wc -l 2554

[..] tcp 2458306 0 kube-ops-view-6b6b5b6964-mhccj:57588 kube-ops-view-redis.ocp-ops-view.svc.cluster.local:6379 ESTABLISHED tcp 1658433 0 kube-ops-view-6b6b5b6964-mhccj:52628 kube-ops-view-redis.ocp-ops-view.svc.cluster.local:6379 ESTABLISHED Active UNIX domain sockets (w/o servers) Proto RefCnt Flags Type State I-Node Path

Runtime is Openshit 3.11 (Kubernetes 1.11) with increased redis memory limits compared to the original deployment.

megabreit commented 4 years ago

Looking through the other open issues, this is probably similar (or duplicate) to #240

megabreit commented 4 years ago

Some more debugging: ops-view is starting with 3 established connections to redis. Every time the browser window is reloaded (either by reload button or the reload option) a new established connection appears. It seems that connections never terminate and consume resources until it crashes/hangs.