Merge pull request #3385 from hashicorp/issue-3376

Switches to using a read lock for the agent's RPC dispatcher.
This commit is contained in:
James Phillips 2017-08-09 18:53:06 -07:00 committed by GitHub
commit 191ff2cbf0
2 changed files with 4 additions and 2 deletions

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@ -5,6 +5,8 @@ FEATURES:
IMPROVEMENTS: IMPROVEMENTS:
* agent: Switched to using a read lock for the agent's RPC dispatcher, which prevents RPC calls from getting serialized. [GH-3376]
BUG FIXES: BUG FIXES:
## 0.9.2 (August 9, 2017) ## 0.9.2 (August 9, 2017)

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@ -956,7 +956,7 @@ func (a *Agent) registerEndpoint(name string, handler interface{}) error {
// RPC is used to make an RPC call to the Consul servers // RPC is used to make an RPC call to the Consul servers
// This allows the agent to implement the Consul.Interface // This allows the agent to implement the Consul.Interface
func (a *Agent) RPC(method string, args interface{}, reply interface{}) error { func (a *Agent) RPC(method string, args interface{}, reply interface{}) error {
a.endpointsLock.Lock() a.endpointsLock.RLock()
// fast path: only translate if there are overrides // fast path: only translate if there are overrides
if len(a.endpoints) > 0 { if len(a.endpoints) > 0 {
p := strings.SplitN(method, ".", 2) p := strings.SplitN(method, ".", 2)
@ -964,7 +964,7 @@ func (a *Agent) RPC(method string, args interface{}, reply interface{}) error {
method = e + "." + p[1] method = e + "." + p[1]
} }
} }
a.endpointsLock.Unlock() a.endpointsLock.RUnlock()
return a.delegate.RPC(method, args, reply) return a.delegate.RPC(method, args, reply)
} }