[Solved] Given these aliases and indexes:logs_2023, logs_2024Alias logs_all points to both indexes.Which index will be searched when querying logs_all? | Elasticsearch

Elasticsearch - Index Management

Given these aliases and indexes:
logs_2023, logs_2024
Alias logs_all points to both indexes.
Which index will be searched when querying logs_all?

AOnly <code>logs_2023</code>

BOnly <code>logs_2024</code>

CNo index, alias is invalid

DBoth <code>logs_2023</code> and <code>logs_2024</code>

Step-by-Step Solution

Solution:

Step 1: Understand alias pointing to multiple indexes
An alias can point to many indexes, so searching the alias searches all linked indexes.
Step 2: Apply to given alias logs_all
Since logs_all points to both logs_2023 and logs_2024, queries to it search both indexes.
Final Answer:
Both logs_2023 and logs_2024 -> Option D
Quick Check:
Alias to multiple indexes searches all = C [OK]

Quick Trick: Aliases can point to many indexes, searching all at once [OK]

Common Mistakes:

MISTAKES

Assuming alias searches only one index
Thinking alias must be single index
Believing alias is invalid if multiple indexes linked

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Given these aliases and indexes:

Step 1: Understand alias pointing to multiple indexes

Step 2: Apply to given alias `logs_all`

Final Answer:

Quick Check:

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