Elasticsearch - Cluster Management
During a rolling upgrade, you want to ensure minimal downtime and data safety. Which sequence of actions is best practice?
During a rolling upgrade, you want to ensure minimal downtime and data safety. Which sequence of actions is best practice?
hard🚀 Application Q15 of Q15
Step-by-Step Solution
Solution:
Step 1: Identify correct upgrade steps
Best practice is to disable shard allocation first to prevent shard moves, then upgrade nodes one by one.Step 2: Finalize upgrade process
After upgrading all nodes, enable shard allocation to rebalance shards and verify cluster health to confirm stability.Final Answer:
Disable shard allocation -> Upgrade nodes one by one -> Enable shard allocation -> Verify cluster health -> Option DQuick Check:
Disable allocation, upgrade nodes, enable allocation, check health [OK]
Quick Trick: Disable allocation first, upgrade nodes, then enable allocation [OK]
Common Mistakes:
MISTAKES- Upgrading all nodes at once causing downtime
- Enabling allocation before upgrade completion
- Restarting cluster unnecessarily
Master "Cluster Management" in Elasticsearch
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Elasticsearch Quizzes