forked from mirror/redis
823 lines
19 KiB
Go
823 lines
19 KiB
Go
package redis_test
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import (
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"bytes"
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"fmt"
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"net"
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"strconv"
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"strings"
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"sync"
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"testing"
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"time"
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"github.com/go-redis/redis"
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"github.com/go-redis/redis/internal/hashtag"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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)
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type clusterScenario struct {
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ports []string
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nodeIds []string
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processes map[string]*redisProcess
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clients map[string]*redis.Client
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}
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func (s *clusterScenario) masters() []*redis.Client {
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result := make([]*redis.Client, 3)
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for pos, port := range s.ports[:3] {
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result[pos] = s.clients[port]
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}
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return result
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}
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func (s *clusterScenario) slaves() []*redis.Client {
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result := make([]*redis.Client, 3)
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for pos, port := range s.ports[3:] {
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result[pos] = s.clients[port]
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}
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return result
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}
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func (s *clusterScenario) addrs() []string {
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addrs := make([]string, len(s.ports))
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for i, port := range s.ports {
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addrs[i] = net.JoinHostPort("127.0.0.1", port)
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}
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return addrs
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}
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func (s *clusterScenario) clusterClient(opt *redis.ClusterOptions) *redis.ClusterClient {
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opt.Addrs = s.addrs()
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return redis.NewClusterClient(opt)
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}
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func startCluster(scenario *clusterScenario) error {
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// Start processes and collect node ids
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for pos, port := range scenario.ports {
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process, err := startRedis(port, "--cluster-enabled", "yes")
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if err != nil {
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return err
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}
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client := redis.NewClient(&redis.Options{
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Addr: ":" + port,
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})
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info, err := client.ClusterNodes().Result()
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if err != nil {
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return err
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}
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scenario.processes[port] = process
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scenario.clients[port] = client
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scenario.nodeIds[pos] = info[:40]
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}
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// Meet cluster nodes.
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for _, client := range scenario.clients {
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err := client.ClusterMeet("127.0.0.1", scenario.ports[0]).Err()
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if err != nil {
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return err
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}
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}
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// Bootstrap masters.
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slots := []int{0, 5000, 10000, 16384}
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for pos, master := range scenario.masters() {
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err := master.ClusterAddSlotsRange(slots[pos], slots[pos+1]-1).Err()
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if err != nil {
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return err
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}
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}
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// Bootstrap slaves.
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for idx, slave := range scenario.slaves() {
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masterId := scenario.nodeIds[idx]
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// Wait until master is available
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err := eventually(func() error {
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s := slave.ClusterNodes().Val()
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wanted := masterId
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if !strings.Contains(s, wanted) {
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return fmt.Errorf("%q does not contain %q", s, wanted)
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}
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return nil
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}, 10*time.Second)
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if err != nil {
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return err
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}
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err = slave.ClusterReplicate(masterId).Err()
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if err != nil {
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return err
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}
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}
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// Wait until all nodes have consistent info.
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for _, client := range scenario.clients {
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err := eventually(func() error {
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res, err := client.ClusterSlots().Result()
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if err != nil {
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return err
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}
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wanted := []redis.ClusterSlot{
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{0, 4999, []redis.ClusterNode{{"", "127.0.0.1:8220"}, {"", "127.0.0.1:8223"}}},
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{5000, 9999, []redis.ClusterNode{{"", "127.0.0.1:8221"}, {"", "127.0.0.1:8224"}}},
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{10000, 16383, []redis.ClusterNode{{"", "127.0.0.1:8222"}, {"", "127.0.0.1:8225"}}},
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}
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return assertSlotsEqual(res, wanted)
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}, 30*time.Second)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func assertSlotsEqual(slots, wanted []redis.ClusterSlot) error {
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outer_loop:
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for _, s2 := range wanted {
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for _, s1 := range slots {
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if slotEqual(s1, s2) {
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continue outer_loop
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}
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}
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return fmt.Errorf("%v not found in %v", s2, slots)
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}
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return nil
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}
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func slotEqual(s1, s2 redis.ClusterSlot) bool {
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if s1.Start != s2.Start {
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return false
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}
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if s1.End != s2.End {
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return false
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}
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if len(s1.Nodes) != len(s2.Nodes) {
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return false
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}
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for i, n1 := range s1.Nodes {
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if n1.Addr != s2.Nodes[i].Addr {
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return false
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}
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}
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return true
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}
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func stopCluster(scenario *clusterScenario) error {
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for _, client := range scenario.clients {
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if err := client.Close(); err != nil {
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return err
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}
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}
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for _, process := range scenario.processes {
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if err := process.Close(); err != nil {
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return err
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}
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}
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return nil
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}
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//------------------------------------------------------------------------------
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var _ = Describe("ClusterClient", func() {
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var opt *redis.ClusterOptions
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var client *redis.ClusterClient
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assertClusterClient := func() {
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It("should GET/SET/DEL", func() {
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err := client.Get("A").Err()
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Expect(err).To(Equal(redis.Nil))
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err = client.Set("A", "VALUE", 0).Err()
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Expect(err).NotTo(HaveOccurred())
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Eventually(func() string {
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return client.Get("A").Val()
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}, 30*time.Second).Should(Equal("VALUE"))
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cnt, err := client.Del("A").Result()
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Expect(err).NotTo(HaveOccurred())
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Expect(cnt).To(Equal(int64(1)))
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})
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It("follows redirects", func() {
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Expect(client.Set("A", "VALUE", 0).Err()).NotTo(HaveOccurred())
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slot := hashtag.Slot("A")
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client.SwapSlotNodes(slot)
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Eventually(func() string {
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return client.Get("A").Val()
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}, 30*time.Second).Should(Equal("VALUE"))
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})
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It("distributes keys", func() {
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for i := 0; i < 100; i++ {
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err := client.Set(fmt.Sprintf("key%d", i), "value", 0).Err()
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Expect(err).NotTo(HaveOccurred())
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}
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for _, master := range cluster.masters() {
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Eventually(func() string {
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return master.Info("keyspace").Val()
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}, 30*time.Second).Should(Or(
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ContainSubstring("keys=31"),
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ContainSubstring("keys=29"),
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ContainSubstring("keys=40"),
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))
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}
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})
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It("distributes keys when using EVAL", func() {
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script := redis.NewScript(`
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local r = redis.call('SET', KEYS[1], ARGV[1])
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return r
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`)
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var key string
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for i := 0; i < 100; i++ {
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key = fmt.Sprintf("key%d", i)
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err := script.Run(client, []string{key}, "value").Err()
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Expect(err).NotTo(HaveOccurred())
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}
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for _, master := range cluster.masters() {
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Eventually(func() string {
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return master.Info("keyspace").Val()
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}, 30*time.Second).Should(Or(
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ContainSubstring("keys=31"),
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ContainSubstring("keys=29"),
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ContainSubstring("keys=40"),
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))
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}
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})
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It("supports Watch", func() {
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var incr func(string) error
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// Transactionally increments key using GET and SET commands.
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incr = func(key string) error {
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err := client.Watch(func(tx *redis.Tx) error {
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n, err := tx.Get(key).Int64()
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if err != nil && err != redis.Nil {
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return err
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}
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_, err = tx.Pipelined(func(pipe redis.Pipeliner) error {
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pipe.Set(key, strconv.FormatInt(n+1, 10), 0)
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return nil
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})
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return err
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}, key)
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if err == redis.TxFailedErr {
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return incr(key)
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}
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return err
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}
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var wg sync.WaitGroup
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for i := 0; i < 100; i++ {
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wg.Add(1)
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go func() {
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defer GinkgoRecover()
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defer wg.Done()
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err := incr("key")
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Expect(err).NotTo(HaveOccurred())
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}()
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}
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wg.Wait()
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Eventually(func() string {
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return client.Get("key").Val()
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}, 30*time.Second).Should(Equal("100"))
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})
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Describe("pipelining", func() {
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var pipe *redis.Pipeline
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assertPipeline := func() {
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keys := []string{"A", "B", "C", "D", "E", "F", "G"}
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It("follows redirects", func() {
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for _, key := range keys {
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slot := hashtag.Slot(key)
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client.SwapSlotNodes(slot)
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}
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for i, key := range keys {
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pipe.Set(key, key+"_value", 0)
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pipe.Expire(key, time.Duration(i+1)*time.Hour)
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}
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cmds, err := pipe.Exec()
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Expect(err).NotTo(HaveOccurred())
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Expect(cmds).To(HaveLen(14))
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_ = client.ForEachNode(func(node *redis.Client) error {
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defer GinkgoRecover()
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Eventually(func() int64 {
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return node.DBSize().Val()
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}, 30*time.Second).ShouldNot(BeZero())
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return nil
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})
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for _, key := range keys {
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slot := hashtag.Slot(key)
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client.SwapSlotNodes(slot)
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}
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for _, key := range keys {
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pipe.Get(key)
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pipe.TTL(key)
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}
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cmds, err = pipe.Exec()
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Expect(err).NotTo(HaveOccurred())
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Expect(cmds).To(HaveLen(14))
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for i, key := range keys {
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get := cmds[i*2].(*redis.StringCmd)
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Expect(get.Val()).To(Equal(key + "_value"))
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ttl := cmds[(i*2)+1].(*redis.DurationCmd)
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dur := time.Duration(i+1) * time.Hour
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Expect(ttl.Val()).To(BeNumerically("~", dur, 5*time.Second))
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}
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})
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It("works with missing keys", func() {
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pipe.Set("A", "A_value", 0)
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pipe.Set("C", "C_value", 0)
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_, err := pipe.Exec()
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Expect(err).NotTo(HaveOccurred())
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a := pipe.Get("A")
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b := pipe.Get("B")
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c := pipe.Get("C")
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cmds, err := pipe.Exec()
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Expect(err).To(Equal(redis.Nil))
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Expect(cmds).To(HaveLen(3))
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Expect(a.Err()).NotTo(HaveOccurred())
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Expect(a.Val()).To(Equal("A_value"))
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Expect(b.Err()).To(Equal(redis.Nil))
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Expect(b.Val()).To(Equal(""))
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Expect(c.Err()).NotTo(HaveOccurred())
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Expect(c.Val()).To(Equal("C_value"))
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})
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}
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Describe("with Pipeline", func() {
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BeforeEach(func() {
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pipe = client.Pipeline().(*redis.Pipeline)
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})
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AfterEach(func() {
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Expect(pipe.Close()).NotTo(HaveOccurred())
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})
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assertPipeline()
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})
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Describe("with TxPipeline", func() {
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BeforeEach(func() {
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pipe = client.TxPipeline().(*redis.Pipeline)
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})
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AfterEach(func() {
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Expect(pipe.Close()).NotTo(HaveOccurred())
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})
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assertPipeline()
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})
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})
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It("supports PubSub", func() {
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pubsub := client.Subscribe("mychannel")
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defer pubsub.Close()
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Eventually(func() error {
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_, err := client.Publish("mychannel", "hello").Result()
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if err != nil {
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return err
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}
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msg, err := pubsub.ReceiveTimeout(time.Second)
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if err != nil {
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return err
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}
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_, ok := msg.(*redis.Message)
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if !ok {
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return fmt.Errorf("got %T, wanted *redis.Message", msg)
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}
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return nil
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}, 30*time.Second).ShouldNot(HaveOccurred())
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})
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}
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Describe("ClusterClient", func() {
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BeforeEach(func() {
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opt = redisClusterOptions()
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client = cluster.clusterClient(opt)
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_ = client.ForEachMaster(func(master *redis.Client) error {
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return master.FlushDB().Err()
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})
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})
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AfterEach(func() {
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_ = client.ForEachMaster(func(master *redis.Client) error {
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return master.FlushDB().Err()
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})
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Expect(client.Close()).NotTo(HaveOccurred())
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})
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It("returns pool stats", func() {
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Expect(client.PoolStats()).To(BeAssignableToTypeOf(&redis.PoolStats{}))
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})
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It("removes idle connections", func() {
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stats := client.PoolStats()
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Expect(stats.TotalConns).NotTo(BeZero())
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Expect(stats.FreeConns).NotTo(BeZero())
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time.Sleep(2 * time.Second)
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stats = client.PoolStats()
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Expect(stats.TotalConns).To(BeZero())
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Expect(stats.FreeConns).To(BeZero())
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})
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It("returns an error when there are no attempts left", func() {
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opt := redisClusterOptions()
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opt.MaxRedirects = -1
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client := cluster.clusterClient(opt)
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slot := hashtag.Slot("A")
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client.SwapSlotNodes(slot)
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err := client.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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Expect(client.Close()).NotTo(HaveOccurred())
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})
|
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|
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It("calls fn for every master node", func() {
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for i := 0; i < 10; i++ {
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Expect(client.Set(strconv.Itoa(i), "", 0).Err()).NotTo(HaveOccurred())
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}
|
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|
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err := client.ForEachMaster(func(master *redis.Client) error {
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return master.FlushDB().Err()
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})
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Expect(err).NotTo(HaveOccurred())
|
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|
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size, err := client.DBSize().Result()
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Expect(err).NotTo(HaveOccurred())
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Expect(size).To(Equal(int64(0)))
|
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})
|
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|
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It("should CLUSTER SLOTS", func() {
|
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res, err := client.ClusterSlots().Result()
|
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Expect(err).NotTo(HaveOccurred())
|
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Expect(res).To(HaveLen(3))
|
|
|
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wanted := []redis.ClusterSlot{
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{0, 4999, []redis.ClusterNode{{"", "127.0.0.1:8220"}, {"", "127.0.0.1:8223"}}},
|
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{5000, 9999, []redis.ClusterNode{{"", "127.0.0.1:8221"}, {"", "127.0.0.1:8224"}}},
|
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{10000, 16383, []redis.ClusterNode{{"", "127.0.0.1:8222"}, {"", "127.0.0.1:8225"}}},
|
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}
|
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Expect(assertSlotsEqual(res, wanted)).NotTo(HaveOccurred())
|
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})
|
|
|
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It("should CLUSTER NODES", func() {
|
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res, err := client.ClusterNodes().Result()
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Expect(err).NotTo(HaveOccurred())
|
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Expect(len(res)).To(BeNumerically(">", 400))
|
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})
|
|
|
|
It("should CLUSTER INFO", func() {
|
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res, err := client.ClusterInfo().Result()
|
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Expect(err).NotTo(HaveOccurred())
|
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Expect(res).To(ContainSubstring("cluster_known_nodes:6"))
|
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})
|
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|
|
It("should CLUSTER KEYSLOT", func() {
|
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hashSlot, err := client.ClusterKeySlot("somekey").Result()
|
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Expect(err).NotTo(HaveOccurred())
|
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Expect(hashSlot).To(Equal(int64(hashtag.Slot("somekey"))))
|
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})
|
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|
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It("should CLUSTER COUNT-FAILURE-REPORTS", func() {
|
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n, err := client.ClusterCountFailureReports(cluster.nodeIds[0]).Result()
|
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Expect(err).NotTo(HaveOccurred())
|
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Expect(n).To(Equal(int64(0)))
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})
|
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|
|
It("should CLUSTER COUNTKEYSINSLOT", func() {
|
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n, err := client.ClusterCountKeysInSlot(10).Result()
|
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Expect(err).NotTo(HaveOccurred())
|
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Expect(n).To(Equal(int64(0)))
|
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})
|
|
|
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It("should CLUSTER SAVECONFIG", func() {
|
|
res, err := client.ClusterSaveConfig().Result()
|
|
Expect(err).NotTo(HaveOccurred())
|
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Expect(res).To(Equal("OK"))
|
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})
|
|
|
|
It("should CLUSTER SLAVES", func() {
|
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nodesList, err := client.ClusterSlaves(cluster.nodeIds[0]).Result()
|
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Expect(err).NotTo(HaveOccurred())
|
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Expect(nodesList).Should(ContainElement(ContainSubstring("slave")))
|
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Expect(nodesList).Should(HaveLen(1))
|
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})
|
|
|
|
It("should RANDOMKEY", func() {
|
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const nkeys = 100
|
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|
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for i := 0; i < nkeys; i++ {
|
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err := client.Set(fmt.Sprintf("key%d", i), "value", 0).Err()
|
|
Expect(err).NotTo(HaveOccurred())
|
|
}
|
|
|
|
var keys []string
|
|
addKey := func(key string) {
|
|
for _, k := range keys {
|
|
if k == key {
|
|
return
|
|
}
|
|
}
|
|
keys = append(keys, key)
|
|
}
|
|
|
|
for i := 0; i < nkeys*10; i++ {
|
|
key := client.RandomKey().Val()
|
|
addKey(key)
|
|
}
|
|
|
|
Expect(len(keys)).To(BeNumerically("~", nkeys, nkeys/10))
|
|
})
|
|
|
|
assertClusterClient()
|
|
})
|
|
|
|
Describe("ClusterClient failover", func() {
|
|
BeforeEach(func() {
|
|
opt = redisClusterOptions()
|
|
client = cluster.clusterClient(opt)
|
|
|
|
_ = client.ForEachSlave(func(slave *redis.Client) error {
|
|
defer GinkgoRecover()
|
|
|
|
_ = client.ForEachMaster(func(master *redis.Client) error {
|
|
return master.FlushDB().Err()
|
|
})
|
|
|
|
Eventually(func() int64 {
|
|
return slave.DBSize().Val()
|
|
}, 30*time.Second).Should(Equal(int64(0)))
|
|
return slave.ClusterFailover().Err()
|
|
})
|
|
})
|
|
|
|
AfterEach(func() {
|
|
_ = client.ForEachMaster(func(master *redis.Client) error {
|
|
return master.FlushDB().Err()
|
|
})
|
|
Expect(client.Close()).NotTo(HaveOccurred())
|
|
})
|
|
|
|
assertClusterClient()
|
|
})
|
|
|
|
Describe("ClusterClient with RouteByLatency", func() {
|
|
BeforeEach(func() {
|
|
opt = redisClusterOptions()
|
|
opt.RouteByLatency = true
|
|
client = cluster.clusterClient(opt)
|
|
|
|
_ = client.ForEachMaster(func(master *redis.Client) error {
|
|
return master.FlushDB().Err()
|
|
})
|
|
|
|
_ = client.ForEachSlave(func(slave *redis.Client) error {
|
|
Eventually(func() int64 {
|
|
return client.DBSize().Val()
|
|
}, 30*time.Second).Should(Equal(int64(0)))
|
|
return nil
|
|
})
|
|
})
|
|
|
|
AfterEach(func() {
|
|
_ = client.ForEachMaster(func(master *redis.Client) error {
|
|
return master.FlushDB().Err()
|
|
})
|
|
Expect(client.Close()).NotTo(HaveOccurred())
|
|
})
|
|
|
|
assertClusterClient()
|
|
})
|
|
})
|
|
|
|
var _ = Describe("ClusterClient without nodes", func() {
|
|
var client *redis.ClusterClient
|
|
|
|
BeforeEach(func() {
|
|
client = redis.NewClusterClient(&redis.ClusterOptions{})
|
|
})
|
|
|
|
AfterEach(func() {
|
|
Expect(client.Close()).NotTo(HaveOccurred())
|
|
})
|
|
|
|
It("Ping returns an error", func() {
|
|
err := client.Ping().Err()
|
|
Expect(err).To(MatchError("redis: cluster has no nodes"))
|
|
})
|
|
|
|
It("pipeline returns an error", func() {
|
|
_, err := client.Pipelined(func(pipe redis.Pipeliner) error {
|
|
pipe.Ping()
|
|
return nil
|
|
})
|
|
Expect(err).To(MatchError("redis: cluster has no nodes"))
|
|
})
|
|
})
|
|
|
|
var _ = Describe("ClusterClient without valid nodes", func() {
|
|
var client *redis.ClusterClient
|
|
|
|
BeforeEach(func() {
|
|
client = redis.NewClusterClient(&redis.ClusterOptions{
|
|
Addrs: []string{redisAddr},
|
|
})
|
|
})
|
|
|
|
AfterEach(func() {
|
|
Expect(client.Close()).NotTo(HaveOccurred())
|
|
})
|
|
|
|
It("returns an error", func() {
|
|
err := client.Ping().Err()
|
|
Expect(err).To(MatchError("ERR This instance has cluster support disabled"))
|
|
})
|
|
|
|
It("pipeline returns an error", func() {
|
|
_, err := client.Pipelined(func(pipe redis.Pipeliner) error {
|
|
pipe.Ping()
|
|
return nil
|
|
})
|
|
Expect(err).To(MatchError("ERR This instance has cluster support disabled"))
|
|
})
|
|
})
|
|
|
|
var _ = Describe("ClusterClient timeout", func() {
|
|
var client *redis.ClusterClient
|
|
|
|
AfterEach(func() {
|
|
_ = client.Close()
|
|
})
|
|
|
|
testTimeout := func() {
|
|
It("Ping timeouts", func() {
|
|
err := client.Ping().Err()
|
|
Expect(err).To(HaveOccurred())
|
|
Expect(err.(net.Error).Timeout()).To(BeTrue())
|
|
})
|
|
|
|
It("Pipeline timeouts", func() {
|
|
_, err := client.Pipelined(func(pipe redis.Pipeliner) error {
|
|
pipe.Ping()
|
|
return nil
|
|
})
|
|
Expect(err).To(HaveOccurred())
|
|
Expect(err.(net.Error).Timeout()).To(BeTrue())
|
|
})
|
|
|
|
It("Tx timeouts", func() {
|
|
err := client.Watch(func(tx *redis.Tx) error {
|
|
return tx.Ping().Err()
|
|
}, "foo")
|
|
Expect(err).To(HaveOccurred())
|
|
Expect(err.(net.Error).Timeout()).To(BeTrue())
|
|
})
|
|
|
|
It("Tx Pipeline timeouts", func() {
|
|
err := client.Watch(func(tx *redis.Tx) error {
|
|
_, err := tx.Pipelined(func(pipe redis.Pipeliner) error {
|
|
pipe.Ping()
|
|
return nil
|
|
})
|
|
return err
|
|
}, "foo")
|
|
Expect(err).To(HaveOccurred())
|
|
Expect(err.(net.Error).Timeout()).To(BeTrue())
|
|
})
|
|
}
|
|
|
|
const pause = 2 * time.Second
|
|
|
|
Context("read/write timeout", func() {
|
|
BeforeEach(func() {
|
|
opt := redisClusterOptions()
|
|
opt.ReadTimeout = 100 * time.Millisecond
|
|
opt.WriteTimeout = 100 * time.Millisecond
|
|
opt.MaxRedirects = 1
|
|
client = cluster.clusterClient(opt)
|
|
|
|
err := client.ForEachNode(func(client *redis.Client) error {
|
|
return client.ClientPause(pause).Err()
|
|
})
|
|
Expect(err).NotTo(HaveOccurred())
|
|
})
|
|
|
|
AfterEach(func() {
|
|
_ = client.ForEachNode(func(client *redis.Client) error {
|
|
defer GinkgoRecover()
|
|
Eventually(func() error {
|
|
return client.Ping().Err()
|
|
}, 2*pause).ShouldNot(HaveOccurred())
|
|
return nil
|
|
})
|
|
})
|
|
|
|
testTimeout()
|
|
})
|
|
})
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
func BenchmarkRedisClusterPing(b *testing.B) {
|
|
if testing.Short() {
|
|
b.Skip("skipping in short mode")
|
|
}
|
|
|
|
cluster := &clusterScenario{
|
|
ports: []string{"8220", "8221", "8222", "8223", "8224", "8225"},
|
|
nodeIds: make([]string, 6),
|
|
processes: make(map[string]*redisProcess, 6),
|
|
clients: make(map[string]*redis.Client, 6),
|
|
}
|
|
|
|
if err := startCluster(cluster); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
defer stopCluster(cluster)
|
|
|
|
client := cluster.clusterClient(redisClusterOptions())
|
|
defer client.Close()
|
|
|
|
b.ResetTimer()
|
|
|
|
b.RunParallel(func(pb *testing.PB) {
|
|
for pb.Next() {
|
|
if err := client.Ping().Err(); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
func BenchmarkRedisClusterSetString(b *testing.B) {
|
|
if testing.Short() {
|
|
b.Skip("skipping in short mode")
|
|
}
|
|
|
|
cluster := &clusterScenario{
|
|
ports: []string{"8220", "8221", "8222", "8223", "8224", "8225"},
|
|
nodeIds: make([]string, 6),
|
|
processes: make(map[string]*redisProcess, 6),
|
|
clients: make(map[string]*redis.Client, 6),
|
|
}
|
|
|
|
if err := startCluster(cluster); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
defer stopCluster(cluster)
|
|
|
|
client := cluster.clusterClient(redisClusterOptions())
|
|
defer client.Close()
|
|
|
|
value := string(bytes.Repeat([]byte{'1'}, 10000))
|
|
|
|
b.ResetTimer()
|
|
|
|
b.RunParallel(func(pb *testing.PB) {
|
|
for pb.Next() {
|
|
if err := client.Set("key", value, 0).Err(); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
})
|
|
}
|