Created
September 12, 2025 19:32
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Redis Scan
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| #!/usr/bin/env python3 | |
| """ | |
| Script to connect to production Redis cluster using GlideClusterClient. | |
| """ | |
| import asyncio | |
| from glide import GlideClusterClient, GlideClusterClientConfiguration, NodeAddress | |
| async def main(): | |
| print("Connecting to NEWSFEED_RANKING_REDIS cluster...") | |
| addresses = [ | |
| NodeAddress( | |
| "us1-nextdoor-com-newsfeed-cache.auq6u7.clustercfg.usw2.cache.amazonaws.com", 6379 | |
| ) | |
| ] | |
| config = GlideClusterClientConfiguration( | |
| addresses=addresses, | |
| use_tls=False, | |
| request_timeout=5000 # 5 second timeout | |
| ) | |
| client = None | |
| try: | |
| print("Creating Glide cluster client...") | |
| client = await GlideClusterClient.create(config) | |
| # Basic connectivity check | |
| pong = await client.ping() | |
| print(f"Connected successfully. Ping response: {pong}") | |
| # Sample keys and their types | |
| N = 50 | |
| print(f"\nFirst {N} keys with types (sample):") | |
| # Get some keys using SCAN | |
| cursor = "0" | |
| keys_found = 0 | |
| while keys_found < N: | |
| # Use SCAN to get keys (non-blocking) | |
| scan_result = await client.scan(cursor, count=100) | |
| cursor = scan_result[0] # Next cursor | |
| keys = scan_result[1] # Keys batch | |
| for key in keys: | |
| if keys_found >= N: | |
| break | |
| try: | |
| key_type = await client.type(key) | |
| print(f"{key_type:8} {key}") | |
| except Exception as e: | |
| print(f"error {key} (error: {e})") | |
| keys_found += 1 | |
| # If cursor is "0", we've scanned all keys | |
| if cursor == "0": | |
| break | |
| print(f"\nScanned {keys_found} keys") | |
| except Exception as e: | |
| print(f"Connection failed: {e}") | |
| return | |
| finally: | |
| if client: | |
| await client.close() | |
| if __name__ == "__main__": | |
| asyncio.run(main()) |
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