Cluster, node, and shard architecture in Elasticsearch - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a cluster name in Elasticsearch configuration.

Elasticsearch

cluster.name: [1]

Drag options to blanks, or click blank then click option'

Anode-1

B"my-cluster"

Cshard-0

Dindex-1

Attempts:

3 left

💡 Hint

Common Mistakes

Using a node name instead of a cluster name

Omitting quotes around the cluster name

The cluster.name setting defines the name of the Elasticsearch cluster.

2fill in blank

medium

Complete the code to set the node name in Elasticsearch configuration.

Elasticsearch

node.name: [1]

Drag options to blanks, or click blank then click option'

A"index-1"

B"cluster-1"

C"node-1"

D"shard-1"

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing node name with cluster name

Using shard or index names as node names

The node.name setting specifies the name of the node within the cluster.

3fill in blank

hard

Fix the error in the shard allocation setting to specify primary shards count.

Elasticsearch

index.number_of_primary_shards: [1]

Drag options to blanks, or click blank then click option'

A"five"

Bfive

C"5"

D5

Attempts:

3 left

💡 Hint

Common Mistakes

Using a string instead of a number

Writing the number as a word

The number of primary shards must be an integer, so 5 without quotes is correct.

4fill in blank

hard

Fill both blanks to create a dictionary mapping node names to shard counts.

Elasticsearch

shard_allocation = {"[1]": [2]

Drag options to blanks, or click blank then click option'

Anode_1

B5

C3

Dnode_2

Attempts:

3 left

💡 Hint

Common Mistakes

Using shard count as key

Using node name as a number

The dictionary key is the node name (a string without quotes here for code), and the value is the number of shards (an integer).

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension for shard sizes greater than 10GB.

Elasticsearch

large_shards = {node: size[1]2 for node, size in shard_sizes.items() if size [2] [3]

Drag options to blanks, or click blank then click option'

A*

B>

C10

D**

Attempts:

3 left

💡 Hint

Common Mistakes

Using multiplication instead of exponentiation

Using less than instead of greater than

Using 10 as a string instead of number

The code squares the size using **, then filters sizes greater than 10.