Comments (5)
metalmatze
commented on June 8, 2024
no server address resolved for
failed to create memcached client
This is most likely an issue with configured address. Did you start pods running memcached? Do you have Kubernetes Service for these that you can point this address to?
This is mostly a Kubernetes usage question more than a Thanos usage one.
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hareeshrao4839
commented on June 8, 2024
yes, thano-store, thano-store-0, thano-store-1, thano-store-2 these are all running as statefulset and its has svc also created. i just replaced MEMCHACHED_SERVICE block to svc name, then only initial mentioned came
level=info ts=2022-03-24T07:39:58.779840562Z caller=caching_bucket_factory.go:71 msg="loading caching bucket configuration"
level=error ts=2022-03-24T07:39:58.781341992Z caller=resolver.go:99 msg="failed to lookup SRV records" host=_client._tcp.thanos-store.thanos.svc.cluster.local err="no such host"
level=error ts=2022-03-24T07:39:58.781506043Z caller=main.go:132 err="no server address resolved for \nfailed to create memcached client\ngithub.com/thanos-io/thanos/pkg/store/cache.NewCachingBucketFromYaml\n\t/home/circleci/project/pkg/store/cache/caching_bucket_factory.go:92\nmain.runStore\n\t/home/circleci/project/cmd/thanos/store.go:260\nmain.registerStore.func1\n\t/home/circleci/project/cmd/thanos/store.go:195\nmain.main\n\t/home/circleci/project/cmd/thanos/main.go:130\nruntime.main\n\t/usr/local/go/src/runtime/proc.go:225\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1371\ncreate caching bucket\nmain.runStore\n\t/home/circleci/project/cmd/thanos/store.go:262\nmain.registerStore.func1\n\t/home/circleci/project/cmd/thanos/store.go:195\nmain.main\n\t/home/circleci/project/cmd/thanos/main.go:130\nruntime.main\n\t/usr/local/go/src/runtime/proc.go:225\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1371\npreparing store command failed\nmain.main\n\t/home/circleci/project/cmd/thanos/main.go:132\nruntime.main\n\t/usr/local/go/src/runtime/proc.go:225\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1371"
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metalmatze
commented on June 8, 2024
Can you somehow exec into the container and check if thanos-store.thanos.svc.cluster.local is available from there? I think this is a configuration problem not a problem with thanos or kube-thanos.
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squat
commented on June 8, 2024
Hi @hareeshrao4839 I think the issue here is that the manifests under examples/manifests/all assume that a memcached server is running. This is maybe kind of a weird default inside of kube-thanos because it means that you can't deploy those manifests without deploying an additional, external component.
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kevinniu666
commented on June 8, 2024
Hi @hareeshrao4839 as squat mentioned above, you need to create memcached service manually,please refer to below yaml for reference:
apiVersion: v1
kind: Service
metadata:
name: memcached-service
spec:
selector:
app: memcached
ports:
- protocol: TCP
port: 11211
targetPort: 11211
name: client
type: ClusterIPsuppose memcached service is running in thanos namespace.the config arg should be confiured as below:
"addresses":
- "dnssrv+_client._tcp.memcached-service.thanos.svc.cluster.local"from kube-thanos.
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