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Merge pull request #289 from andrewhsu/dl

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[17.11]  cluster: avoid recursive readlock on swarm info
This commit is contained in:
Andrew Hsu
2017-11-06 12:57:40 -08:00
committed by GitHub
parent d7062e5443 84070b5f49
commit 40dc614b99
1 changed files with 12 additions and 4 deletions
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components/engine/daemon/cluster/swarm.go
+12 -4
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@@ -198,9 +198,9 @@ func (c *Cluster) Join(req types.JoinRequest) error {
// Inspect retrieves the configuration properties of a managed swarm cluster.
func (c *Cluster) Inspect() (types.Swarm, error) {
var swarm *swarmapi.Cluster
var swarm types.Swarm
if err := c.lockedManagerAction(func(ctx context.Context, state nodeState) error {
s, err := getSwarm(ctx, state.controlClient)
s, err := c.inspect(ctx, state)
if err != nil {
return err
}
@@ -209,7 +209,15 @@ func (c *Cluster) Inspect() (types.Swarm, error) {
}); err != nil {
return types.Swarm{}, err
}
return convert.SwarmFromGRPC(*swarm), nil
return swarm, nil
}
func (c *Cluster) inspect(ctx context.Context, state nodeState) (types.Swarm, error) {
s, err := getSwarm(ctx, state.controlClient)
if err != nil {
return types.Swarm{}, err
}
return convert.SwarmFromGRPC(*s), nil
}
// Update updates configuration of a managed swarm cluster.
@@ -413,7 +421,7 @@ func (c *Cluster) Info() types.Info {
if state.IsActiveManager() {
info.ControlAvailable = true
swarm, err := c.Inspect()
swarm, err := c.inspect(ctx, state)
if err != nil {
info.Error = err.Error()
}