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Fix cluster pipeline tests.

This commit is contained in:
Vladimir Mihailenco 2016-12-16 16:26:48 +02:00
parent a3eed908aa
commit cd7431c40a
2 changed files with 61 additions and 40 deletions
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25
cluster.go
View File

@ -95,18 +95,22 @@ func newClusterNode(clOpt *ClusterOptions, addr string) *clusterNode {
}
if clOpt.RouteByLatency {
const probes = 10
for i := 0; i < probes; i++ {
t1 := time.Now()
node.Client.Ping()
node.Latency += time.Since(t1)
}
node.Latency = node.Latency / probes
node.updateLatency()
}
return &node
}
func (n *clusterNode) updateLatency() {
const probes = 10
for i := 0; i < probes; i++ {
start := time.Now()
n.Client.Ping()
n.Latency += time.Since(start)
}
n.Latency = n.Latency / probes
}
func (n *clusterNode) Loading() bool {
return !n.loading.IsZero() && time.Since(n.loading) < time.Minute
}
@ -290,6 +294,8 @@ func (c *clusterState) slotSlaveNode(slot int) (*clusterNode, error) {
}
func (c *clusterState) slotClosestNode(slot int) (*clusterNode, error) {
const threshold = time.Millisecond
nodes := c.slotNodes(slot)
if len(nodes) == 0 {
return c.nodes.Random()
@ -297,7 +303,10 @@ func (c *clusterState) slotClosestNode(slot int) (*clusterNode, error) {
var node *clusterNode
for _, n := range nodes {
if node == nil || n.Latency < node.Latency {
if n.Loading() {
continue
}
if node == nil || node.Latency-n.Latency > threshold {
node = n
}
}

76
cluster_test.go
View File

@ -6,15 +6,14 @@ import (
"strconv"
"strings"
"sync"
"testing"
"time"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"gopkg.in/redis.v5"
"gopkg.in/redis.v5/internal/hashtag"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
type clusterScenario struct {
@ -24,10 +23,6 @@ type clusterScenario struct {
clients map[string]*redis.Client
}
func (s *clusterScenario) primary() *redis.Client {
return s.clients[s.ports[0]]
}
func (s *clusterScenario) masters() []*redis.Client {
result := make([]*redis.Client, 3)
for pos, port := range s.ports[:3] {
@ -157,6 +152,9 @@ func slotEqual(s1, s2 redis.ClusterSlot) bool {
if s1.End != s2.End {
return false
}
if len(s1.Nodes) != len(s2.Nodes) {
return false
}
for i, n1 := range s1.Nodes {
if n1.Addr != s2.Nodes[i].Addr {
return false
@ -182,9 +180,10 @@ func stopCluster(scenario *clusterScenario) error {
//------------------------------------------------------------------------------
var _ = Describe("ClusterClient", func() {
var opt *redis.ClusterOptions
var client *redis.ClusterClient
describeClusterClient := func() {
assertClusterClient := func() {
It("should CLUSTER SLOTS", func() {
res, err := client.ClusterSlots().Result()
Expect(err).NotTo(HaveOccurred())
@ -377,11 +376,13 @@ var _ = Describe("ClusterClient", func() {
var pipe *redis.Pipeline
assertPipeline := func() {
It("follows redirects", func() {
slot := hashtag.Slot("A")
Expect(client.SwapSlotNodes(slot)).To(Equal([]string{"127.0.0.1:8224", "127.0.0.1:8221"}))
keys := []string{"A", "B", "C", "D", "E", "F", "G"}
keys := []string{"A", "B", "C", "D", "E", "F", "G"}
It("follows redirects", func() {
for _, key := range keys {
slot := hashtag.Slot(key)
client.SwapSlotNodes(slot)
}
for i, key := range keys {
pipe.Set(key, key+"_value", 0)
@ -391,6 +392,15 @@ var _ = Describe("ClusterClient", func() {
Expect(err).NotTo(HaveOccurred())
Expect(cmds).To(HaveLen(14))
if opt.RouteByLatency {
return
}
for _, key := range keys {
slot := hashtag.Slot(key)
client.SwapSlotNodes(slot)
}
for _, key := range keys {
pipe.Get(key)
pipe.TTL(key)
@ -398,25 +408,26 @@ var _ = Describe("ClusterClient", func() {
cmds, err = pipe.Exec()
Expect(err).NotTo(HaveOccurred())
Expect(cmds).To(HaveLen(14))
Expect(cmds[0].(*redis.StringCmd).Val()).To(Equal("A_value"))
Expect(cmds[1].(*redis.DurationCmd).Val()).To(BeNumerically("~", 1*time.Hour, time.Second))
Expect(cmds[6].(*redis.StringCmd).Val()).To(Equal("D_value"))
Expect(cmds[7].(*redis.DurationCmd).Val()).To(BeNumerically("~", 4*time.Hour, time.Second))
Expect(cmds[12].(*redis.StringCmd).Val()).To(Equal("G_value"))
Expect(cmds[13].(*redis.DurationCmd).Val()).To(BeNumerically("~", 7*time.Hour, time.Second))
for i, key := range keys {
get := cmds[i*2].(*redis.StringCmd)
Expect(get.Val()).To(Equal(key + "_value"))
ttl := cmds[(i*2)+1].(*redis.DurationCmd)
Expect(ttl.Val()).To(BeNumerically("~", time.Duration(i+1)*time.Hour, time.Second))
}
})
It("works with missing keys", func() {
Expect(client.Set("A", "A_value", 0).Err()).NotTo(HaveOccurred())
Expect(client.Set("C", "C_value", 0).Err()).NotTo(HaveOccurred())
pipe.Set("A", "A_value", 0)
pipe.Set("C", "C_value", 0)
_, err := pipe.Exec()
Expect(err).NotTo(HaveOccurred())
var a, b, c *redis.StringCmd
cmds, err := client.Pipelined(func(pipe *redis.Pipeline) error {
a = pipe.Get("A")
b = pipe.Get("B")
c = pipe.Get("C")
return nil
})
a := pipe.Get("A")
b := pipe.Get("B")
c := pipe.Get("C")
cmds, err := pipe.Exec()
Expect(err).To(Equal(redis.Nil))
Expect(cmds).To(HaveLen(3))
@ -476,7 +487,8 @@ var _ = Describe("ClusterClient", func() {
Describe("default ClusterClient", func() {
BeforeEach(func() {
client = cluster.clusterClient(redisClusterOptions())
opt = redisClusterOptions()
client = cluster.clusterClient(opt)
_ = client.ForEachMaster(func(master *redis.Client) error {
return master.FlushDb().Err()
@ -487,12 +499,12 @@ var _ = Describe("ClusterClient", func() {
Expect(client.Close()).NotTo(HaveOccurred())
})
describeClusterClient()
assertClusterClient()
})
Describe("ClusterClient with RouteByLatency", func() {
BeforeEach(func() {
opt := redisClusterOptions()
opt = redisClusterOptions()
opt.RouteByLatency = true
client = cluster.clusterClient(opt)
@ -506,7 +518,7 @@ var _ = Describe("ClusterClient", func() {
Expect(client.Close()).NotTo(HaveOccurred())
})
describeClusterClient()
assertClusterClient()
})
})