forked from mirror/redis
84 lines
1.7 KiB
Go
84 lines
1.7 KiB
Go
package redis
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import (
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"context"
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"fmt"
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"net"
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"strings"
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"github.com/go-redis/redis/v8/internal/hashtag"
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"github.com/go-redis/redis/v8/internal/pool"
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)
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func (c *baseClient) Pool() pool.Pooler {
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return c.connPool
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}
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func (c *PubSub) SetNetConn(netConn net.Conn) {
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c.cn = pool.NewConn(netConn)
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}
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func (c *ClusterClient) LoadState(ctx context.Context) (*clusterState, error) {
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return c.loadState(ctx)
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}
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func (c *ClusterClient) SlotAddrs(ctx context.Context, slot int) []string {
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state, err := c.state.Get(ctx)
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if err != nil {
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panic(err)
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}
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var addrs []string
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for _, n := range state.slotNodes(slot) {
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addrs = append(addrs, n.Client.getAddr())
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}
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return addrs
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}
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func (c *ClusterClient) Nodes(ctx context.Context, key string) ([]*clusterNode, error) {
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state, err := c.state.Reload(ctx)
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if err != nil {
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return nil, err
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}
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slot := hashtag.Slot(key)
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nodes := state.slotNodes(slot)
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if len(nodes) != 2 {
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return nil, fmt.Errorf("slot=%d does not have enough nodes: %v", slot, nodes)
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}
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return nodes, nil
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}
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func (c *ClusterClient) SwapNodes(ctx context.Context, key string) error {
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nodes, err := c.Nodes(ctx, key)
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if err != nil {
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return err
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}
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nodes[0], nodes[1] = nodes[1], nodes[0]
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return nil
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}
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func (state *clusterState) IsConsistent(ctx context.Context) bool {
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if len(state.Masters) < 3 {
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return false
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}
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for _, master := range state.Masters {
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s := master.Client.Info(ctx, "replication").Val()
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if !strings.Contains(s, "role:master") {
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return false
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}
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}
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if len(state.Slaves) < 3 {
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return false
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}
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for _, slave := range state.Slaves {
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s := slave.Client.Info(ctx, "replication").Val()
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if !strings.Contains(s, "role:slave") {
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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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