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596c06ca98
Author | SHA1 | Date |
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Oleglacto | 596c06ca98 | |
dependabot[bot] | e63669e170 | |
LINKIWI | fc32d0a01d | |
Justin | f1ffb55c9a |
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@ -8,7 +8,7 @@ jobs:
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- name: Checkout
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uses: actions/checkout@v4
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- name: Check Spelling
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uses: rojopolis/spellcheck-github-actions@0.40.0
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uses: rojopolis/spellcheck-github-actions@0.45.0
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with:
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config_path: .github/spellcheck-settings.yml
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task_name: Markdown
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@ -167,6 +167,8 @@ func (cmd *baseCmd) stringArg(pos int) string {
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switch v := arg.(type) {
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case string:
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return v
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case []byte:
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return string(v)
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default:
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// TODO: consider using appendArg
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return fmt.Sprint(v)
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@ -21,6 +21,10 @@ import (
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"github.com/redis/go-redis/v9/internal/rand"
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)
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const (
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minLatencyMeasurementInterval = 10 * time.Second
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)
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var errClusterNoNodes = fmt.Errorf("redis: cluster has no nodes")
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// ClusterOptions are used to configure a cluster client and should be
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@ -316,6 +320,10 @@ type clusterNode struct {
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latency uint32 // atomic
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generation uint32 // atomic
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failing uint32 // atomic
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// last time the latency measurement was performed for the node, stored in nanoseconds
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// from epoch
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lastLatencyMeasurement int64 // atomic
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}
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func newClusterNode(clOpt *ClusterOptions, addr string) *clusterNode {
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@ -368,6 +376,7 @@ func (n *clusterNode) updateLatency() {
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latency = float64(dur) / float64(successes)
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}
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atomic.StoreUint32(&n.latency, uint32(latency+0.5))
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n.SetLastLatencyMeasurement(time.Now())
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}
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func (n *clusterNode) Latency() time.Duration {
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@ -397,6 +406,10 @@ func (n *clusterNode) Generation() uint32 {
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return atomic.LoadUint32(&n.generation)
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}
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func (n *clusterNode) LastLatencyMeasurement() int64 {
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return atomic.LoadInt64(&n.lastLatencyMeasurement)
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}
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func (n *clusterNode) SetGeneration(gen uint32) {
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for {
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v := atomic.LoadUint32(&n.generation)
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@ -406,6 +419,15 @@ func (n *clusterNode) SetGeneration(gen uint32) {
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}
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}
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func (n *clusterNode) SetLastLatencyMeasurement(t time.Time) {
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for {
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v := atomic.LoadInt64(&n.lastLatencyMeasurement)
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if t.UnixNano() < v || atomic.CompareAndSwapInt64(&n.lastLatencyMeasurement, v, t.UnixNano()) {
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break
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}
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}
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}
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//------------------------------------------------------------------------------
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type clusterNodes struct {
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@ -493,10 +515,11 @@ func (c *clusterNodes) GC(generation uint32) {
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c.mu.Lock()
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c.activeAddrs = c.activeAddrs[:0]
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now := time.Now()
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for addr, node := range c.nodes {
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if node.Generation() >= generation {
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c.activeAddrs = append(c.activeAddrs, addr)
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if c.opt.RouteByLatency {
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if c.opt.RouteByLatency && node.LastLatencyMeasurement() < now.Add(-minLatencyMeasurementInterval).UnixNano() {
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go node.updateLatency()
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}
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continue
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@ -653,6 +653,32 @@ var _ = Describe("ClusterClient", func() {
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Expect(client.Close()).NotTo(HaveOccurred())
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})
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It("determines hash slots correctly for generic commands", func() {
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opt := redisClusterOptions()
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opt.MaxRedirects = -1
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client := cluster.newClusterClient(ctx, opt)
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err := client.Do(ctx, "GET", "A").Err()
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Expect(err).To(Equal(redis.Nil))
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err = client.Do(ctx, []byte("GET"), []byte("A")).Err()
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Expect(err).To(Equal(redis.Nil))
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Eventually(func() error {
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return client.SwapNodes(ctx, "A")
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}, 30*time.Second).ShouldNot(HaveOccurred())
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err = client.Do(ctx, "GET", "A").Err()
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Expect(err).To(HaveOccurred())
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Expect(err.Error()).To(ContainSubstring("MOVED"))
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err = client.Do(ctx, []byte("GET"), []byte("A")).Err()
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Expect(err).To(HaveOccurred())
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Expect(err.Error()).To(ContainSubstring("MOVED"))
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Expect(client.Close()).NotTo(HaveOccurred())
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})
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It("follows node redirection immediately", func() {
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// Configure retry backoffs far in excess of the expected duration of redirection
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opt := redisClusterOptions()
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