Milvus 2.0 Depolyment Problem: RootCoord Can't start

[orange-jams]

Due to some reaseon, we can't use helm to deploy distributed milvus2.0.So we follow helm's yaml files to deploy each component.When deploying RootCoord error occurs, the error message is "function CompareAndSwap error for compare is false for key: RootCoord".

[xiaofan-luan]

@neza2017 any ideas?

[neza2017]

for milvus 2.0 every component will register itself into etcd with lease, and etcd will remove the registered information automatically after component disconnect with etcd longer than 10s
so this error message means that the someone has registered RootCoord in th etcd, so you failed to deploy the RootCoord
may be you deploy RootCoord more than once, and the second RoocCoord reports this error.

for the default config, the key for RootCoord in etcd is by-dev/meta/session/RootCoord, please check it this key exist in etcd.

[orange-jams]

Thanks for your reply, we check the files in etcd,but not found by-dev/meta/session/RootCoord. Maybe etcd we deployed is false, could you provide etcd's deplyment.yaml which we can't find from milvs-helm.

[jeffoverflow]

@orange-jams
helm generated yamls are good sources of examples. use these command:

git clone https://github.com/milvus-io/milvus-helm.git
# Helm >= v3.x
helm template my-release ./milvus-helm/charts/milvus > ./milvus_generated.yaml
# edit milvus_generated.yaml if necessary

The milvus_generated.yaml contains the etcd's deplyment.yaml

[orange-jams]

As i said in description due to some reaseon, we can't use helm to deploy distributed milvus2.0. So what you suggest, we can't have a try.

[jeffoverflow]

@orange-jams
milvus_generated.yaml.txt