mirror of
https://github.com/d0zingcat/redis-keys-statistics.git
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115 lines
4.6 KiB
Python
115 lines
4.6 KiB
Python
import argparse
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import redis
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import rediscluster
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from datetime import datetime
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from .redis_utils import get_redis_keys, get_redis_cluster_keys
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def main():
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parser = argparse.ArgumentParser(
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description='Analyze Redis Instance Key Statistics.')
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parser.add_argument('--host', required=True, help='Redis host')
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parser.add_argument('--port', required=True, help='Redis port')
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parser.add_argument('--username', default=None, help='Redis username')
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parser.add_argument('--password', default=None, help='Redis password')
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parser.add_argument('--samples', default=5,
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help='Redis memory usage samples')
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parser.add_argument('--cluster', action='store_true',
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help='Enable cluster mode')
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parser.add_argument('--batch_size', type=int, default=1000,
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help='Batch size for SCAN command')
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parser.add_argument('--replica_only', action='store_true',
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help='Execute only on replica instances')
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parser.add_argument('--pretty_format', action='store_true',
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help='Display output in a human-readable format')
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args = parser.parse_args()
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CONNECTION_TIMEOUT = 10
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if args.cluster:
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try:
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rc = rediscluster.RedisCluster(startup_nodes=[{"host": args.host, "port": int(args.port)}],
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skip_full_coverage_check=True,
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password=args.password,
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username=args.username,
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socket_timeout=CONNECTION_TIMEOUT)
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redis_info = rc.info()
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if list(redis_info.values())[0].get('cluster_enabled') != 1:
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print(
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"Error: Specified Redis instance is not running in cluster mode but --cluster flag was provided.")
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return
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process_start_time = datetime.now()
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if get_redis_cluster_keys(rc, args.batch_size, args.replica_only, args.pretty_format) == -1:
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print(
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f"Aborted the operation on non-readonly redis at host: {args.host}")
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return
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rc.close()
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process_end_time = datetime.now()
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process_taken_time = str(
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process_end_time - process_start_time).split(".")[0]
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print(f'Process completed in {process_taken_time} (HH:MM:SS)')
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except rediscluster.exceptions.RedisClusterError as e:
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print(
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f"Error connecting to Redis cluster: {args.host}. Error message: {str(e)}")
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return
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except rediscluster.exceptions.RedisClusterException as e:
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if "ERROR sending 'cluster slots' command to redis server" in str(e):
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print(
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"Error: Specified Redis instance is not running in cluster mode but --cluster flag was provided.")
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return
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else:
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print(
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f"Failed to connect to Redis cluster: {args.host}. Error message: {str(e)}")
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return
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else:
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try:
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r = redis.Redis(host=args.host, port=int(args.port),
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password=args.password,
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username=args.username,
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socket_timeout=CONNECTION_TIMEOUT)
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redis_info = r.info()
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if redis_info.get('cluster_enabled') != 0:
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print(
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"Error: Specified Redis instance is running in cluster mode but --cluster flag was not provided.")
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return
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if redis_info.get('role') != 'slave' and args.replica_only:
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print(
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f"Aborted the operation on non-readonly redis at host: {args.host}")
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return
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process_start_time = datetime.now()
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for db in redis_info.keys():
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if db.startswith('db'):
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db_num = int(db[2:])
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get_redis_keys(r, args.batch_size,
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db_num, args.pretty_format, args.samples)
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r.close()
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process_end_time = datetime.now()
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process_taken_time = str(
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process_end_time - process_start_time).split(".")[0]
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print(f'Process completed in {process_taken_time} (HH:MM:SS)')
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except redis.exceptions.TimeoutError as e:
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print(
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f"Timeout connecting to Redis: {args.host}. Error message: {str(e)}")
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except redis.exceptions.ConnectionError as e:
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print(
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f"Failed to connect to Redis: {args.host}. Error message: {str(e)}")
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if __name__ == "__main__":
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main()
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