GCP - Cloud Firestore and Bigtable
You notice that your Bigtable cluster has hotspots causing slow queries. Which schema design change can help fix this?
You notice that your Bigtable cluster has hotspots causing slow queries. Which schema design change can help fix this?
medium📝 Debug Q14 of 15
Step-by-Step Solution
Solution:
Step 1: Identify cause of hotspots
Sequential row keys cause data to cluster on few nodes, creating hotspots.Step 2: Apply solution to distribute load
Adding a random prefix spreads data across nodes, balancing load and reducing hotspots.Final Answer:
Add a random prefix to the row key -> Option BQuick Check:
Random prefix = balanced load, fewer hotspots [OK]
Quick Trick: Randomize row keys to avoid hotspots [OK]
Common Mistakes:
- Using sequential keys which cause hotspots
- Grouping columns doesn't fix hotspots
- Removing timestamps reduces query flexibility
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