Document versioning in Elasticsearch - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to specify the version number when indexing a document.

Elasticsearch

POST /my_index/_doc/1?version=[1]
{
  "name": "Alice"
}

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

A2

B0

C1

Dlatest

Attempts:

3 left

💡 Hint

Common Mistakes

Using 0 as the version number causes errors.

Using 'latest' is not a valid version number.

The version number must be set to the current version of the document, which starts at 1.

2fill in blank

medium

Complete the code to update a document only if the version matches.

Elasticsearch

POST /my_index/_doc/1/_update?version=[1]
{
  "doc": {"age": 30}
}

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

A2

B3

C1

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using an outdated version number causes version conflicts.

Using 0 or 1 when the current version is 2 causes errors.

To update safely, specify the current version number, here 2.

3fill in blank

hard

Fix the error in the code to prevent version conflicts when deleting a document.

Elasticsearch

DELETE /my_index/_doc/1?version=[1]

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

A1

B0

Clatest

D2

Attempts:

3 left

💡 Hint

Common Mistakes

Using 0 or 'latest' causes version conflict errors.

Using an outdated version number causes the delete to fail.

The version must match the current document version, here 2, to avoid conflicts.

4fill in blank

hard

Fill both blanks to create a document with version control and refresh immediately.

Elasticsearch

PUT /my_index/_doc/2?version=[1]&refresh=[2]
{
  "title": "New Doc"
}

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

A1

Btrue

Cfalse

D2

Attempts:

3 left

💡 Hint

Common Mistakes

Using version 2 for a new document causes conflicts.

Setting refresh to false delays document availability.

Use version 1 for a new document and set refresh to true to make it searchable immediately.

5fill in blank

hard

Fill all three blanks to update a document with version check, retry on conflict, and refresh.

Elasticsearch

POST /my_index/_doc/3/_update?version=[1]&retry_on_conflict=[2]&refresh=[3]
{
  "doc": {"status": "active"}
}

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

A3

B5

Ctrue

Dfalse

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong version numbers causes conflicts.

Not setting retry_on_conflict may cause update failures.

Setting refresh to false delays search availability.

Use the current version 3, retry 5 times on conflict, and refresh immediately.