Cache management (query, request, field data) in Elasticsearch - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to enable query cache in Elasticsearch.

Elasticsearch

{
  "query": {
    "match_all": {}
  },
  "[1]": true
}

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

Aquery_cache

Brequest_cache

Ccache_enabled

Dfielddata_cache

Attempts:

3 left

💡 Hint

Common Mistakes

Using request_cache instead of query_cache

Using fielddata_cache which is for field data, not queries

Using a non-existent setting like cache_enabled

The query_cache setting enables caching of query results in Elasticsearch.

2fill in blank

medium

Complete the code to enable request cache for a search request.

Elasticsearch

{
  "size": 10,
  "query": {
    "term": { "user": "kimchy" }
  },
  "[1]": true
}

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

Aquery_cache

Bfielddata_cache

Crequest_cache

Dcache_query

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing request_cache with query_cache

Using fielddata_cache which is unrelated to request caching

Using incorrect setting names

The request_cache setting enables caching of the entire search request response.

3fill in blank

hard

Fix the error in the field data cache setting to enable it correctly.

Elasticsearch

{
  "fielddata": {
    "[1]": true
  }
}

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

Aenable

Bfielddata_cache

Ccache

Dfielddata

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'cache' or 'fielddata_cache' which are invalid keys

Using 'fielddata' again inside the fielddata object

The correct setting to enable field data cache is enable inside the fielddata object.

4fill in blank

hard

Fill both blanks to create a query that uses request cache and disables query cache.

Elasticsearch

{
  "query": {
    "match": { "title": "Elasticsearch" }
  },
  "[1]": false,
  "[2]": true
}

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

Aquery_cache

Brequest_cache

Cfielddata_cache

Dcache_enabled

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the cache names

Using invalid cache names

Setting both caches to true or false

Setting query_cache to false disables query caching, while setting request_cache to true enables request caching.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that caches field lengths greater than 5.

Elasticsearch

{
  "field_lengths_cache": {
    "lengths": {word: len(word) for word in words if len(word) [1] [2],
    "[3]": true
  }
}

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

A>

B5

Ccache_enabled

Drequest_cache

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong comparison operators

Using wrong cache keys

Forgetting to enable the cache

The comprehension filters words with length greater than 5 using > and 5. The cache is enabled with cache_enabled.