Index refresh interval in Elasticsearch - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the refresh interval to 1 second.

Elasticsearch

PUT /my_index/_settings
{
  "index": {
    "refresh_interval": "[1]"
  }
}

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

A"1s"

B"1000ms"

C"1sec"

D"one_second"

Attempts:

3 left

💡 Hint

Common Mistakes

Using invalid time units like "1sec" or words like "one_second".

Using milliseconds without quotes.

The refresh interval value must be a time string like "1s" for one second.

2fill in blank

medium

Complete the code to disable automatic refresh by setting refresh interval to -1.

Elasticsearch

PUT /my_index/_settings
{
  "index": {
    "refresh_interval": [1]
  }
}

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

A"-1s"

B"-1"

C-1

D"none"

Attempts:

3 left

💡 Hint

Common Mistakes

Using numeric -1 without quotes causes errors.

Using "-1s" which is invalid.

To disable automatic refresh, set refresh_interval to the string "-1".

3fill in blank

hard

Fix the error in the code to correctly set refresh interval to 500 milliseconds.

Elasticsearch

PUT /my_index/_settings
{
  "index": {
    "refresh_interval": [1]
  }
}

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

A"500ms"

B500ms

C"0.5s"

D"500"

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting quotes around the value.

Using just "500" without units.

The refresh interval must be a string with a valid time unit, like "500ms".

4fill in blank

hard

Fill both blanks to set refresh interval to 2 seconds and then verify it with a GET request.

Elasticsearch

PUT /my_index/_settings
{
  "index": {
    "refresh_interval": [1]
  }
}

GET /my_index/_settings
{
  "[2]": {}
}

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

A"2s"

B"refresh_interval"

C"settings"

D"index"

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong keys in GET request like "refresh_interval" instead of "settings".

Not quoting the refresh interval value.

Set refresh_interval to "2s" and use GET /my_index/_settings to check settings.

5fill in blank

hard

Fill all three blanks to set refresh interval to 30 seconds, disable automatic refresh, and then reset it back to 1 second.

Elasticsearch

PUT /my_index/_settings
{
  "index": {
    "refresh_interval": [1]
  }
}

PUT /my_index/_settings
{
  "index": {
    "refresh_interval": [2]
  }
}

PUT /my_index/_settings
{
  "index": {
    "refresh_interval": [3]
  }
}

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

A"30s"

B"-1"

C"1s"

D"0s"

Attempts:

3 left

💡 Hint

Common Mistakes

Using numeric -1 instead of string "-1".

Using invalid time strings like "0s" to disable.

Set refresh interval to "30s", then disable with "-1", then reset to "1s".