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Shuffle in place 

Don't create a copy and save the copy, not necessary any more.
This commit is contained in:
Sean Chittenden 2016-03-28 14:02:27 -07:00
parent a81eb95acc
commit e5b5078415
1 changed files with 1 additions and 5 deletions
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6
consul/server_manager/server_manager.go
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@ -173,15 +173,11 @@ func (sc *serverConfig) removeServerByKey(targetKey *server_details.Key) {
// shuffleServers shuffles the server list in place
func (sc *serverConfig) shuffleServers() {
newServers := make([]*server_details.ServerDetails, len(sc.servers))
copy(newServers, sc.servers)
// Shuffle server list
for i := len(sc.servers) - 1; i > 0; i-- {
j := rand.Int31n(int32(i + 1))
newServers[i], newServers[j] = newServers[j], newServers[i]
sc.servers[i], sc.servers[j] = sc.servers[j], sc.servers[i]
}
sc.servers = newServers
}
// FindServer takes out an internal "read lock" and searches through the list