redis普通的資料庫遷移，只能整個redis save，或者利用主從，當然也可以安裝一個redis-dump，不過比較麻煩，這裡提供一種php的指令碼，實現指定庫號的遷移，其實也就是遍曆根據儲存類型，讀出來，插入新庫；效果是這樣：
| 代碼如下 |
複製代碼 |
[root@localhost ~]# php 1.php
1/407
101/407
201/407
301/407
401/407 |
上代碼：
| 代碼如下 |
複製代碼 |
<?php
$from = '10.0.2.52:6379/7';
$to = '127.0.0.1:6379/7';
$from_redis = redis_init($from);
$to_redis = redis_init($to);
$keys = $from_redis->keys('*');
$count = 0;
$total = count($keys);
foreach($keys as $key){
if(++$count % 100 == 1){
echo "$count/$total＼n";
}
$type = $from_redis->type($key);
switch($type){
case Redis::REDIS_STRING:
$val = $from_redis->get($key);
$to_redis->set($key, $val);
break;
case Redis::REDIS_LIST:
$list = $from_redis->lRange($key, 0, -1);
foreach($list as $val){
$to_redis->rPush($key, $val);
}
break;
case Redis::REDIS_HASH:
$hash = $from_redis->hGetAll($key);
$to_redis->hMSet($key, $hash);
break;
case Redis::REDIS_ZSET:
$zset = $from_redis->zRange($key, 0, -1, true);
foreach($zset as $val=>$score){
$to_redis->zAdd($key, $score, $val);
}
break;
}
} function redis_init($conf){
$redis = new Redis();
preg_match('/^([^:]+)(:[0-9]+)?＼＼/(.+)?/', $conf, $ms);
$host = $ms[1];
$port = trim($ms[2], ':');
$db = $ms[3];
$redis->connect($host, $port);
$redis->select($db);
return $redis;
}
|
