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api: Allow reconnection of policy/notification rpc clients. (#3368)

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Since we moved out reconnection logic from net-rpc-client.go
we should do it from the top-layer properly and bring back
the code to reconnect properly in-case the connection is lost.
This commit is contained in:
Harshavardhana
2016-11-29 22:39:32 -08:00
committed by GitHub
parent 834007728c
commit d056f19d07
2 changed files with 46 additions and 7 deletions
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49
cmd/bucket-metadata.go
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@@ -16,7 +16,10 @@
package cmd
import "encoding/json"
import (
"encoding/json"
"net/rpc"
)
// BucketMetaState - Interface to update bucket metadata in-memory
// state.
@@ -104,26 +107,62 @@ type remoteBucketMetaState struct {
// change to remote peer via RPC call.
func (rc *remoteBucketMetaState) UpdateBucketNotification(args *SetBucketNotificationPeerArgs) error {
reply := GenericReply{}
return rc.Call("S3.SetBucketNotificationPeer", args, &reply)
err := rc.Call("S3.SetBucketNotificationPeer", args, &reply)
// Check for network error and retry once.
if err != nil && err == rpc.ErrShutdown {
// Close the underlying connection to attempt once more.
rc.Close()
// Attempt again and proceed.
err = rc.Call("S3.SetBucketNotificationPeer", args, &reply)
}
return err
}
// remoteBucketMetaState.UpdateBucketListener - sends bucket listener change to
// remote peer via RPC call.
func (rc *remoteBucketMetaState) UpdateBucketListener(args *SetBucketListenerPeerArgs) error {
reply := GenericReply{}
return rc.Call("S3.SetBucketListenerPeer", args, &reply)
err := rc.Call("S3.SetBucketListenerPeer", args, &reply)
// Check for network error and retry once.
if err != nil && err == rpc.ErrShutdown {
// Close the underlying connection to attempt once more.
rc.Close()
// Attempt again and proceed.
err = rc.Call("S3.SetBucketListenerPeer", args, &reply)
}
return err
}
// remoteBucketMetaState.UpdateBucketPolicy - sends bucket policy change to remote
// peer via RPC call.
func (rc *remoteBucketMetaState) UpdateBucketPolicy(args *SetBucketPolicyPeerArgs) error {
reply := GenericReply{}
return rc.Call("S3.SetBucketPolicyPeer", args, &reply)
err := rc.Call("S3.SetBucketPolicyPeer", args, &reply)
// Check for network error and retry once.
if err != nil && err == rpc.ErrShutdown {
// Close the underlying connection to attempt once more.
rc.Close()
// Attempt again and proceed.
err = rc.Call("S3.SetBucketPolicyPeer", args, &reply)
}
return err
}
// remoteBucketMetaState.SendEvent - sends event for bucket listener to remote
// peer via RPC call.
func (rc *remoteBucketMetaState) SendEvent(args *EventArgs) error {
reply := GenericReply{}
return rc.Call("S3.Event", args, &reply)
err := rc.Call("S3.Event", args, &reply)
// Check for network error and retry once.
if err != nil && err == rpc.ErrShutdown {
// Close the underlying connection to attempt once more.
rc.Close()
// Attempt again and proceed.
err = rc.Call("S3.Event", args, &reply)
}
return err
}