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Rename clusterAddrs to activeAddrs

This commit is contained in:
Vladimir Mihailenco 2020-07-09 11:35:13 +03:00
parent f108b8bce3
commit d66af70ae8
1 changed files with 30 additions and 26 deletions
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52
cluster.go
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@ -242,9 +242,9 @@ type clusterNodes struct {
opt *ClusterOptions opt *ClusterOptions
mu sync.RWMutex mu sync.RWMutex
allAddrs []string addrs []string
allNodes map[string]*clusterNode nodes map[string]*clusterNode
clusterAddrs []string activeAddrs []string
closed bool closed bool
_generation uint32 // atomic _generation uint32 // atomic
@ -254,8 +254,8 @@ func newClusterNodes(opt *ClusterOptions) *clusterNodes {
return &clusterNodes{ return &clusterNodes{
opt: opt, opt: opt,
allAddrs: opt.Addrs, addrs: opt.Addrs,
allNodes: make(map[string]*clusterNode), nodes: make(map[string]*clusterNode),
} }
} }
@ -269,14 +269,14 @@ func (c *clusterNodes) Close() error {
c.closed = true c.closed = true
var firstErr error var firstErr error
for _, node := range c.allNodes { for _, node := range c.nodes {
if err := node.Client.Close(); err != nil && firstErr == nil { if err := node.Client.Close(); err != nil && firstErr == nil {
firstErr = err firstErr = err
} }
} }
c.allNodes = nil c.nodes = nil
c.clusterAddrs = nil c.activeAddrs = nil
return firstErr return firstErr
} }
@ -286,10 +286,10 @@ func (c *clusterNodes) Addrs() ([]string, error) {
c.mu.RLock() c.mu.RLock()
closed := c.closed closed := c.closed
if !closed { if !closed {
if len(c.clusterAddrs) > 0 { if len(c.activeAddrs) > 0 {
addrs = c.clusterAddrs addrs = c.activeAddrs
} else { } else {
addrs = c.allAddrs addrs = c.addrs
} }
} }
c.mu.RUnlock() c.mu.RUnlock()
@ -311,16 +311,20 @@ func (c *clusterNodes) NextGeneration() uint32 {
func (c *clusterNodes) GC(generation uint32) { func (c *clusterNodes) GC(generation uint32) {
//nolint:prealloc //nolint:prealloc
var collected []*clusterNode var collected []*clusterNode
c.mu.Lock() c.mu.Lock()
for addr, node := range c.allNodes {
c.activeAddrs = c.activeAddrs[:0]
for addr, node := range c.nodes {
if node.Generation() >= generation { if node.Generation() >= generation {
c.activeAddrs = append(c.activeAddrs, addr)
continue continue
} }
c.clusterAddrs = remove(c.clusterAddrs, addr) delete(c.nodes, addr)
delete(c.allNodes, addr)
collected = append(collected, node) collected = append(collected, node)
} }
c.mu.Unlock() c.mu.Unlock()
for _, node := range collected { for _, node := range collected {
@ -344,16 +348,15 @@ func (c *clusterNodes) Get(addr string) (*clusterNode, error) {
return nil, pool.ErrClosed return nil, pool.ErrClosed
} }
node, ok := c.allNodes[addr] node, ok := c.nodes[addr]
if ok { if ok {
return node, err return node, err
} }
node = newClusterNode(c.opt, addr) node = newClusterNode(c.opt, addr)
c.allAddrs = appendIfNotExists(c.allAddrs, addr) c.addrs = appendIfNotExists(c.addrs, addr)
c.clusterAddrs = append(c.clusterAddrs, addr) c.nodes[addr] = node
c.allNodes[addr] = node
return node, err return node, err
} }
@ -365,7 +368,7 @@ func (c *clusterNodes) get(addr string) (*clusterNode, error) {
if c.closed { if c.closed {
err = pool.ErrClosed err = pool.ErrClosed
} else { } else {
node = c.allNodes[addr] node = c.nodes[addr]
} }
c.mu.RUnlock() c.mu.RUnlock()
return node, err return node, err
@ -379,8 +382,8 @@ func (c *clusterNodes) All() ([]*clusterNode, error) {
return nil, pool.ErrClosed return nil, pool.ErrClosed
} }
cp := make([]*clusterNode, 0, len(c.allNodes)) cp := make([]*clusterNode, 0, len(c.nodes))
for _, node := range c.allNodes { for _, node := range c.nodes {
cp = append(cp, node) cp = append(cp, node)
} }
return cp, nil return cp, nil
@ -993,6 +996,7 @@ func (c *ClusterClient) loadState(ctx context.Context) (*clusterState, error) {
} }
var firstErr error var firstErr error
for _, idx := range rand.Perm(len(addrs)) { for _, idx := range rand.Perm(len(addrs)) {
addr := addrs[idx] addr := addrs[idx]
@ -1017,12 +1021,12 @@ func (c *ClusterClient) loadState(ctx context.Context) (*clusterState, error) {
/* /*
* No node is connectable. It's possible that all nodes' IP has changed. * No node is connectable. It's possible that all nodes' IP has changed.
* Clear clusterAddrs to let client be able to re-connect using the initial * Clear activeAddrs to let client be able to re-connect using the initial
* setting of the addresses (e.g. [redsi-cluster-0:6379, redis-cluster-1:6379]), * setting of the addresses (e.g. [redis-cluster-0:6379, redis-cluster-1:6379]),
* which might have chance to resolve domain name and get updated IP address. * which might have chance to resolve domain name and get updated IP address.
*/ */
c.nodes.mu.Lock() c.nodes.mu.Lock()
c.nodes.clusterAddrs = nil c.nodes.activeAddrs = nil
c.nodes.mu.Unlock() c.nodes.mu.Unlock()
return nil, firstErr return nil, firstErr