python 批量刪除 redis 大量數據

#!/usr/bin/env python
# Scan and delete keys in Redis.
# Author: cdfive
from redis import Redis
import time


def RedisScanAndDelete(host, port, password, db, cursor, pattern, count, batch_delete_size):
    start_time = time.time()
    client = Redis(host=host, port=port, password=password, db=db)
    counts, other_cursor_counts = 0, 0
    delete_keys = []
    while True:
        cursor, keys = client.scan(cursor, pattern, count)
        length = len(keys)
        if length > 0:
            index = 0
            for key in keys:
                index += 1
                counts += 1
                print("[%s][%s]%s,cursor=%s" % (
                    int(time.time() - start_time), counts, key.decode("utf-8"), cursor))

                delete_keys.append(key)
                if (len(delete_keys) >= batch_delete_size or index >= length) and len(delete_keys) > 0:
                    client.delete(*delete_keys)
                    delete_keys = []
        else:
            other_cursor_counts += 1
            print("[%s][other_curosr]other_cursor_counts=%s,cursor=%s" % (
                int(time.time() - start_time), other_cursor_counts, cursor))

        if cursor == 0:
            break
    client.close()
    print("[%s]counts=%s,cursor=%s,other_cursor_counts=%s"
          % (int(time.time() - start_time), counts, cursor, other_cursor_counts))


RedisScanAndDelete("localhost", 6379, "123456", 0, 0, "*xxx*", 1000, 100)

參考教程：https://blog.51cto.com/u_56701/6473475