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title	CURL command & more information

The Reindex operation itself provides a few options for configuration. For large data volumes especially, we employ parameters that increase stability and performance of the operation, such the 'slices' parameter for automatic parallelization of the Reindex.

Code Block

title	CURL commandCommand Reindex Operation
collapse	true

curl -X POST "localhost:9200/_reindex?pretty&slices=20&wait_for_completion=false&refresh" -H 'Content-Type: application/json' -d'
{
  "source": {
    "index": "yuuvis_1"
  },
  "dest": {
    "index": "yuuvis_2"
  },
  "conflicts": "proceed"
}
'

After the reindex has completed, the new Index must be activated by reassigning the 'yuuvis' alias from the old Index to the new.

The new index needs to inherit the 'yuuvis' alias from the original index, meaning that the 'yuuvis' alias must be deleted from the original index beforehand.

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title	CURL command & more information

Code Block

title

CURL command

Code Block

title	CURL Command Reindex Operation
collapse	true

curl -X DELETE "localhost:9200/yuuvis_21/_alias/yuuvis?pretty"

curl -X POST "localhost:9200/_aliases?pretty" -H 'Content-Type: application/json' -d'
{
  "actions": [
    {
      "add": {
        "index": "yuuvis_42",
        "alias": "yuuvis"
      }
    }
  ]
}
'

3. Deleting the original Index

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title	CURL command & more information

https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-delete-index.htmlMake sure to verify the Momentum system still works correctly and contains all expected data before proceeding with the deletion of the original index.

Code Block

title	CURL command
collapse	true

curl -X DELETE "localhost:9200/yuuvis_1"

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Old Version 3

New Version 4

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3. Deleting the original Index