Elasticsearch - Advanced Patterns
Which parameter is essential to keep the scroll context alive between requests?
Which parameter is essential to keep the scroll context alive between requests?
easy🧠 Conceptual Q2 of Q15
Step-by-Step Solution
Solution:
Step 1: Identify scroll context parameter
The 'scroll' parameter defines how long Elasticsearch keeps the search context alive for scrolling.Step 2: Differentiate from other parameters
'scroll_id' identifies the batch, 'size' controls batch size, 'from' is for pagination but not scroll context.Final Answer:
'scroll' parameter keeps the scroll context alive -> Option CQuick Check:
Scroll context lifetime = 'scroll' parameter [OK]
Quick Trick: 'scroll' sets context lifetime; 'scroll_id' fetches next batch [OK]
Common Mistakes:
MISTAKES- Confusing 'scroll' with 'scroll_id'
- Using 'from' for scrolling
- Ignoring 'scroll' parameter duration
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