Reindexing data in Elasticsearch - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start reindexing from source to destination index.

Elasticsearch

{
  "source": { "index": "[1]" },
  "dest": { "index": "new_index" }
}

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

Aold_index

Bnew_index

Csource_index

Ddest_index

Attempts:

3 left

💡 Hint

Common Mistakes

Using the destination index name as the source index.

Using a non-existent index name.

The source.index must be the name of the existing index you want to copy from.

2fill in blank

medium

Complete the code to add a query filter to reindex only documents where status is 'active'.

Elasticsearch

{
  "source": {
    "index": "old_index",
    "query": { "term": { "status": "[1]" } }
  },
  "dest": { "index": "new_index" }
}

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

Apending

Binactive

Cactive

Ddeleted

Attempts:

3 left

💡 Hint

Common Mistakes

Using a status value that does not exist in documents.

Using a query type other than term for exact match.

The query filters documents with status equal to active to be reindexed.

3fill in blank

hard

Fix the error in the reindex request by completing the missing field for the destination index.

Elasticsearch

{
  "source": { "index": "old_index" },
  "dest": { "[1]": "new_index" }
}

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

Asource

Bindex

Cquery

Dtype

Attempts:

3 left

💡 Hint

Common Mistakes

Using source instead of index in destination.

Omitting the destination index field.

The destination index must be specified with the index field inside dest.

4fill in blank

hard

Fill both blanks to reindex documents from 'old_index' to 'new_index' with a script that sets the field 'status' to 'archived'.

Elasticsearch

{
  "source": { "index": "[1]" },
  "dest": { "index": "[2]" },
  "script": {
    "source": "ctx._source.status = 'archived'"
  }
}

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

Aold_index

Bnew_index

Carchive_index

Dsource_index

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping source and destination index names.

Using an incorrect index name.

The source index is old_index and the destination index is new_index. The script updates the status field to 'archived' during reindexing.

5fill in blank

hard

Fill all three blanks to reindex documents from 'products' to 'products_new' only if 'price' is greater than 100, and add a script to increase 'price' by 10%.

Elasticsearch

{
  "source": {
    "index": "[1]",
    "query": { "range": { "price": { "[2]": 100 } } }
  },
  "dest": { "index": "[3]" },
  "script": {
    "source": "ctx._source.price *= 1.1"
  }
}

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

Aproducts

Bgt

Cproducts_new

Dgte

Attempts:

3 left

💡 Hint

Common Mistakes

Using gte instead of gt.

Mixing up source and destination index names.

The source index is products. The query uses gt to filter prices greater than 100. The destination index is products_new. The script increases the price by 10%.