You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
89 lines
1.5 KiB
89 lines
1.5 KiB
package internal
|
|
|
|
import (
|
|
"io"
|
|
"net"
|
|
"strings"
|
|
|
|
"github.com/go-redis/redis/internal/proto"
|
|
)
|
|
|
|
func IsRetryableError(err error, retryTimeout bool) bool {
|
|
if err == nil {
|
|
return false
|
|
}
|
|
if err == io.EOF {
|
|
return true
|
|
}
|
|
if netErr, ok := err.(net.Error); ok {
|
|
if netErr.Timeout() {
|
|
return retryTimeout
|
|
}
|
|
return true
|
|
}
|
|
s := err.Error()
|
|
if s == "ERR max number of clients reached" {
|
|
return true
|
|
}
|
|
if strings.HasPrefix(s, "LOADING ") {
|
|
return true
|
|
}
|
|
if strings.HasPrefix(s, "READONLY ") {
|
|
return true
|
|
}
|
|
if strings.HasPrefix(s, "CLUSTERDOWN ") {
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
func IsRedisError(err error) bool {
|
|
_, ok := err.(proto.RedisError)
|
|
return ok
|
|
}
|
|
|
|
func IsBadConn(err error, allowTimeout bool) bool {
|
|
if err == nil {
|
|
return false
|
|
}
|
|
if IsRedisError(err) {
|
|
// #790
|
|
return IsReadOnlyError(err)
|
|
}
|
|
if allowTimeout {
|
|
if netErr, ok := err.(net.Error); ok && netErr.Timeout() {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
func IsMovedError(err error) (moved bool, ask bool, addr string) {
|
|
if !IsRedisError(err) {
|
|
return
|
|
}
|
|
|
|
s := err.Error()
|
|
if strings.HasPrefix(s, "MOVED ") {
|
|
moved = true
|
|
} else if strings.HasPrefix(s, "ASK ") {
|
|
ask = true
|
|
} else {
|
|
return
|
|
}
|
|
|
|
ind := strings.LastIndex(s, " ")
|
|
if ind == -1 {
|
|
return false, false, ""
|
|
}
|
|
addr = s[ind+1:]
|
|
return
|
|
}
|
|
|
|
func IsLoadingError(err error) bool {
|
|
return strings.HasPrefix(err.Error(), "LOADING ")
|
|
}
|
|
|
|
func IsReadOnlyError(err error) bool {
|
|
return strings.HasPrefix(err.Error(), "READONLY ")
|
|
}
|