Elasticsearch - Cluster Management
Which command is recommended to disable shard allocation before starting a rolling upgrade?
Which command is recommended to disable shard allocation before starting a rolling upgrade?
easy📝 Syntax Q12 of Q15
Step-by-Step Solution
Solution:
Step 1: Identify correct syntax to disable shard allocation
The correct way is to update cluster settings with PUT and set allocation to "none".Step 2: Check options
Only PUT /_cluster/settings {"persistent": {"cluster.routing.allocation.enable": "none"}} uses the correct HTTP method, endpoint, and JSON body.Final Answer:
PUT /_cluster/settings {"persistent": {"cluster.routing.allocation.enable": "none"}} -> Option AQuick Check:
Disable shard allocation = PUT cluster settings with allocation none [OK]
Quick Trick: Use PUT with cluster settings and allocation none to disable shards [OK]
Common Mistakes:
MISTAKES- Using wrong HTTP method like POST or GET
- Wrong endpoint or missing persistent key
- Trying to delete shards instead of disabling allocation
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