Index lifecycle management in Elasticsearch - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a policy that deletes an index after 30 days.

Elasticsearch

{
  "policy": {
    "phases": {
      "delete": {
        "min_age": "[1]",
        "actions": {
          "delete": {}
        }
      }
    }
  }
}

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

A30d

B30m

C30s

D30w

Attempts:

3 left

💡 Hint

Common Mistakes

Using minutes or seconds instead of days.

Forgetting to specify the time unit.

The min_age value specifies how long the index should live before the delete action runs. 30d means 30 days.

2fill in blank

medium

Complete the code to add a rollover action when the index reaches 50GB.

Elasticsearch

{
  "policy": {
    "phases": {
      "hot": {
        "actions": {
          "rollover": {
            "max_size": "[1]"
          }
        }
      }
    }
  }
}

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

A50mb

B50tb

C50kb

D50gb

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase 'mb' instead of 'gb'.

Confusing size units like kb or tb.

The max_size in rollover defines the maximum index size before rollover. 50gb means 50 gigabytes.

3fill in blank

hard

Fix the error in the policy that tries to move an index to warm phase after 10 days.

Elasticsearch

{
  "policy": {
    "phases": {
      "warm": {
        "min_age": "[1]",
        "actions": {
          "allocate": {
            "number_of_replicas": 2
          }
        }
      }
    }
  }
}

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

A10d

B10h

C10m

D10s

Attempts:

3 left

💡 Hint

Common Mistakes

Using hours, minutes, or seconds instead of days.

Omitting the time unit.

The min_age must be specified with a time unit. 10d means 10 days, which is correct for moving to warm phase after 10 days.

4fill in blank

hard

Fill both blanks to create a policy that moves an index to cold phase after 20 days and freezes it.

Elasticsearch

{
  "policy": {
    "phases": {
      "cold": {
        "min_age": "[1]",
        "actions": {
          "[2]": {}
        }
      }
    }
  }
}

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

A20d

Bfreeze

Cdelete

Drollover

Attempts:

3 left

💡 Hint

Common Mistakes

Using delete or rollover actions in cold phase incorrectly.

Wrong time unit for min_age.

The min_age is set to 20d to start cold phase after 20 days. The freeze action freezes the index to save resources.

5fill in blank

hard

Fill all three blanks to define a policy with hot phase rollover at 25GB, warm phase after 7 days with 1 replica, and delete phase after 90 days.

Elasticsearch

{
  "policy": {
    "phases": {
      "hot": {
        "actions": {
          "rollover": {
            "max_size": "[1]"
          }
        }
      },
      "warm": {
        "min_age": "[2]",
        "actions": {
          "allocate": {
            "number_of_replicas": [3]
          }
        }
      },
      "delete": {
        "min_age": "90d",
        "actions": {
          "delete": {}
        }
      }
    }
  }
}

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

A25gb

B7d

C1

D90d

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up time units or numbers.

Using wrong values for replicas.

The hot phase rolls over at 25gb. The warm phase starts after 7d with 1 replica. The delete phase removes the index after 90 days.