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handle possible race condition
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parent
6fb6480a3b
commit
3c245c69d3
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@ -14,6 +14,7 @@ const (
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type ClusterNode struct {
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address pb.ServerAddress
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version string
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counter int
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}
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type Cluster struct {
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@ -32,12 +33,14 @@ func (cluster *Cluster) AddClusterNode(nodeType string, address pb.ServerAddress
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case "filer":
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cluster.filersLock.Lock()
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defer cluster.filersLock.Unlock()
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if _, found := cluster.filers[address]; found {
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if existingNode, found := cluster.filers[address]; found {
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existingNode.counter++
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return
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}
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cluster.filers[address] = &ClusterNode{
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address: address,
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version: version,
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counter: 1,
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}
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case "master":
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}
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@ -48,10 +51,14 @@ func (cluster *Cluster) RemoveClusterNode(nodeType string, address pb.ServerAddr
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case "filer":
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cluster.filersLock.Lock()
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defer cluster.filersLock.Unlock()
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if _, found := cluster.filers[address]; !found {
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if existingNode, found := cluster.filers[address]; !found {
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return
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} else {
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existingNode.counter--
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if existingNode.counter <= 0 {
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delete(cluster.filers, address)
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}
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}
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delete(cluster.filers, address)
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case "master":
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}
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}
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