How to Find ETCD Leader and Check ETCD Health
Problem
How to find ETCD Leader and check ETCD Health in a Platform9 Managed Kubernetes Cluster?
Environment
- Platform9 Managed Kubernetes - All Versions
- ETCD
- Docker and Containerd
Procedure
- SSH into any one of the Master nodes and become a root user.
- For docker based container runtime: Run the following command to copy the etcdctl binary from the etcd container running on the node and update the PATH variable.
x
docker cp etcd:/usr/local/bin/etcdctl /opt/pf9/pf9-kube/bin export PATH=$PATH:/opt/pf9/pf9-kube/bin- Run the etcdctl command to find out the ETCD Leader and look for IS LEADER column
# /opt/pf9/pf9-kube/bin/etcdctl endpoint status -w=table+----------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+| ENDPOINT | ID | VERSION | DB SIZE | IS LEADER | IS LEARNER | RAFT TERM | RAFT INDEX | RAFT APPLIED INDEX | ERRORS |+----------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+| 127.0.0.1:2379 | 5ad09a7031a6a983 | 3.4.14 | 13 MB | false | false | 83 | 6676368 | 6676368 | |+----------------+------------------+---------+---------+-----------+------------+-----------+------------+--------------------+--------+- Run the etcdctl command to check ETCD Health of Member/Endpoints.
# /opt/pf9/pf9-kube/bin/etcdctl endpoint health --cluster -w=table --endpoints=http://127.0.0.1:2379 --cacert="/etc/pf9/kube.d/certs/etcdctl/etcd/ca.crt" --cert="/etc/pf9/kube.d/certs/etcdctl/etcd/request.crt" --key="/etc/pf9/kube.d/certs/etcdctl/etcd/request.key"+-----------------------------+--------+-------------+-------+| ENDPOINT | HEALTH | TOOK | ERROR |+-----------------------------+--------+-------------+-------+| https://10.128.146.244:4001 | true | 18.427771ms | || https://10.128.147.235:4001 | true | 18.958459ms | || https://10.128.146.71:4001 | true | 20.086052ms | |+-----------------------------+--------+-------------+-------+Additional Information
Was this page helpful?