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Question 140 - SPLK-2002 discussion

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An indexer cluster is being designed with the following characteristics:

* 10 search peers

* Replication Factor (RF): 4

* Search Factor (SF): 3

* No SmartStore usage

How many search peers can fail before data becomes unsearchable?

A.

Zero peers can fail.

Answers
A.

Zero peers can fail.

B.

One peer can fail.

Answers
B.

One peer can fail.

C.

Three peers can fail.

Answers
C.

Three peers can fail.

D.

Four peers can fail.

Answers
D.

Four peers can fail.

Suggested answer: C

Explanation:

Three peers can fail. This is the maximum number of search peers that can fail before data becomes unsearchable in the indexer cluster with the given characteristics.The searchability of the data depends on the Search Factor, which is the number of searchable copies of each bucket that the cluster maintains across the set of peer nodes1. In this case, the Search Factor is 3, which means that each bucket has three searchable copies distributed among the 10 search peers. If three or fewer search peers fail, the cluster can still serve the data from the remaining searchable copies. However, if four or more search peers fail, the cluster may lose some searchable copies and the data may become unsearchable. The other options are not correct, as they either underestimate or overestimate the number of search peers that can fail before data becomes unsearchable. Therefore, option C is the correct answer, and options A, B, and D are incorrect.

1: Configure the search factor

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asked 13/11/2024
Hoang Son
47 questions
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