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1 file changed, 52 insertions
migrate_redis.py(Datei erstellt)
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| 1 | + | #!/usr/bin/env python | |
| 2 | + | import argparse | |
| 3 | + | import redis | |
| 4 | + | ||
| 5 | + | ||
| 6 | + | def connect_redis(conn_dict): | |
| 7 | + | conn = redis.StrictRedis(host=conn_dict['host'], | |
| 8 | + | port=conn_dict['port'], | |
| 9 | + | db=conn_dict['db']) | |
| 10 | + | return conn | |
| 11 | + | ||
| 12 | + | ||
| 13 | + | def conn_string_type(string): | |
| 14 | + | format = '<host>:<port>/<db>' | |
| 15 | + | try: | |
| 16 | + | host, portdb = string.split(':') | |
| 17 | + | port, db = portdb.split('/') | |
| 18 | + | db = int(db) | |
| 19 | + | except ValueError: | |
| 20 | + | raise argparse.ArgumentTypeError('incorrect format, should be: %s' % format) | |
| 21 | + | return {'host': host, | |
| 22 | + | 'port': port, | |
| 23 | + | 'db': db} | |
| 24 | + | ||
| 25 | + | ||
| 26 | + | def migrate_redis(source, destination): | |
| 27 | + | src = connect_redis(source) | |
| 28 | + | dst = connect_redis(destination) | |
| 29 | + | for key in src.keys('*'): | |
| 30 | + | ttl = src.ttl(key) | |
| 31 | + | # we handle TTL command returning -1 (no expire) or -2 (no key) | |
| 32 | + | if ttl < 0: | |
| 33 | + | ttl = 0 | |
| 34 | + | print "Dumping key: %s" % key | |
| 35 | + | value = src.dump(key) | |
| 36 | + | print "Restoring key: %s" % key | |
| 37 | + | try: | |
| 38 | + | dst.restore(key, ttl * 1000, value) | |
| 39 | + | except: | |
| 40 | + | pass | |
| 41 | + | return | |
| 42 | + | ||
| 43 | + | ||
| 44 | + | def run(): | |
| 45 | + | parser = argparse.ArgumentParser() | |
| 46 | + | parser.add_argument('source', type=conn_string_type) | |
| 47 | + | parser.add_argument('destination', type=conn_string_type) | |
| 48 | + | options = parser.parse_args() | |
| 49 | + | migrate_redis(options.source, options.destination) | |
| 50 | + | ||
| 51 | + | if __name__ == '__main__': | |
| 52 | + | run() | |
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