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Merge pull request #592 from Madhu-1/cherry-pick-liv

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Fix liveness connection opening endless sockets
This commit is contained in:
Madhu Rajanna 2019-09-06 21:47:45 +05:30 committed by GitHub
commit b38496793e
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1 changed files with 10 additions and 9 deletions
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19
pkg/liveness/liveness.go
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@ -25,6 +25,7 @@ import (
connlib "github.com/kubernetes-csi/csi-lib-utils/connection"
"github.com/kubernetes-csi/csi-lib-utils/rpc"
"github.com/prometheus/client_golang/prometheus"
"google.golang.org/grpc"
"k8s.io/klog"
)
@ -36,14 +37,7 @@ var (
})
)
func getLiveness(endpoint string, timeout time.Duration) {
csiConn, err := connlib.Connect(endpoint)
if err != nil {
// connlib should retry forever so a returned error should mean
// the grpc client is misconfigured rather than an error on the network
klog.Fatalf("failed to establish connection to CSI driver: %v", err)
}
func getLiveness(timeout time.Duration, csiConn *grpc.ClientConn) {
ctx, cancel := context.WithTimeout(context.Background(), timeout)
defer cancel()
@ -72,11 +66,18 @@ func recordLiveness(endpoint string, pollTime, timeout time.Duration) {
klog.Fatalln(err)
}
csiConn, err := connlib.Connect(endpoint)
if err != nil {
// connlib should retry forever so a returned error should mean
// the grpc client is misconfigured rather than an error on the network
klog.Fatalf("failed to establish connection to CSI driver: %v", err)
}
// get liveness periodically
ticker := time.NewTicker(pollTime)
defer ticker.Stop()
for range ticker.C {
getLiveness(endpoint, timeout)
getLiveness(timeout, csiConn)
}
}