这个问题在这里已经有答案了:
名称解析redis暂时失败(2个答案)
9个月前关门了。
我一直在使用microk8s,redis似乎在flask网页上给出了以下错误:(redis是一个pod,flask网页在另一个pod中)
connecting to redis:6379. Temporary failure in name resolution.
我也经常会遇到以下错误:
grpc._channel._MultiThreadedRendezvous: <_MultiThreadedRendezvous of RPC that terminated with:
status = StatusCode.UNAVAILABLE
details = "DNS resolution failed"
debug_error_string = "{"created":"@1585584578.284600062","description":"Failed to pick subchannel","file":"src/core/ext/filters/client_channel/client_channel.cc","file_line":3941,"referenced_errors":[{"created":"@1585584578.284535859","description":"Resolver transient failure","file":"src/core/ext/filters/client_channel/resolving_lb_policy.cc","file_line":262,"referenced_errors":[{"created":"@1585584578.284532411","description":"DNS resolution failed","file":"src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc","file_line":370,"grpc_status":14,"referenced_errors":[{"created":"@1585584578.284452899","description":"C-ares status is not ARES_SUCCESS: Timeout while contacting DNS servers","file":"src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc","file_line":244,"referenced_errors":[{"created":"@1585584578.284444557","description":"C-ares status is not ARES_SUCCESS: Timeout while contacting DNS servers","file":"src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc","file_line":244}]}]}]}]}"
不确定这是否与dns或grpc有关
python连接:
conn = redis.StrictRedis(host='redis', port=6379)
服务yml:
apiVersion: v1
kind: Service
metadata:
labels:
app: redis
name: redis
spec:
selector:
app: redis
type: NodePort
ports:
- port: 6379
nodePort: 10000
protocol: TCP
部署:
apiVersion: apps/v1
kind: Deployment
metadata:
name: redis-deploy
spec:
selector:
matchLabels:
app: redis
template:
metadata:
labels:
app: redis
spec:
containers:
- name: redis
image: redis:alpine
ports:
- containerPort: 6379
可以使用以下命令连接:
redis-cli -p 10000
1条答案
按热度按时间x759pob21#
根据您的错误日志,这似乎是一个问题与dns服务器本身,而不是与记录
redis
. 我不熟悉micro-k8s,不知道kube系统中是否运行核心dns或kube dns。