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Merged
lpabon merged 1 commit into from
Jan 24, 2018
Merged

More reliable connections #29

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19 changes: 18 additions & 1 deletion utils/grpcutil.go
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Original file line number Diff line number Diff line change
Expand Up @@ -17,11 +17,14 @@ limitations under the License.
package utils

import (
"context"
"fmt"
"net"
"net/url"
"time"

"google.golang.org/grpc"
"google.golang.org/grpc/connectivity"
)

// Connect address by grpc
Expand All @@ -38,5 +41,19 @@ func Connect(address string) (*grpc.ClientConn, error) {
}))
}

return grpc.Dial(address, dialOptions...)
conn, err := grpc.Dial(address, dialOptions...)
if err != nil {
return nil, err
}

ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
defer cancel()
for {
if !conn.WaitForStateChange(ctx, conn.GetState()) {
return conn, fmt.Errorf("Connection timed out")
}
if conn.GetState() == connectivity.Ready {
return conn, nil
}
}
}