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clientv3: add debugging lines to 'retry' paths

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Helpful for debugging client balancer.

Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>
This commit is contained in:
Gyu-Ho Lee
2017-10-06 09:50:36 -07:00
parent d2b3e578e7
commit 1c6fbcd3d0
2 changed files with 9 additions and 2 deletions
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3
clientv3/balancer.go
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@@ -303,6 +303,9 @@ func (b *simpleBalancer) up(addr grpc.Address) (func(error), bool) {
return func(err error) {}, false
}
if b.pinAddr != "" {
if logger.V(4) {
logger.Infof("clientv3/balancer: %s is up but not pinned (already pinned %s)", addr.Addr, b.pinAddr)
}
return func(err error) {}, false
}
// notify waiting Get()s and pin first connected address

8
clientv3/retry.go
View File

@@ -62,6 +62,9 @@ func (c *Client) newRetryWrapper(isStop retryStopErrFunc) retryRpcFunc {
if err == nil {
return nil
}
if logger.V(4) {
logger.Infof("clientv3/retry: retry for error %v", err)
}
notify := c.balancer.ConnectNotify()
if s, ok := status.FromError(err); ok && s.Code() == codes.Unavailable {
c.balancer.next()
@@ -87,7 +90,9 @@ func (c *Client) newAuthRetryWrapper() retryRpcFunc {
if err == nil {
return nil
}
if logger.V(4) {
logger.Infof("clientv3/auth-retry: retry for error %v", err)
}
// always stop retry on etcd errors other than invalid auth token
if rpctypes.Error(err) == rpctypes.ErrInvalidAuthToken {
gterr := c.getToken(rpcCtx)
@@ -96,7 +101,6 @@ func (c *Client) newAuthRetryWrapper() retryRpcFunc {
}
continue
}
return err
}
}