Flushes one or more data streams or indices

POST /{index}/_flush

Path parameters

  • index string | array[string] Required

    Comma-separated list of data streams, indices, and aliases to flush. Supports wildcards (*). To flush all data streams and indices, omit this parameter or use * or _all.

Query parameters

  • allow_no_indices boolean

    If false, the request returns an error if any wildcard expression, index alias, or _all value targets only missing or closed indices. This behavior applies even if the request targets other open indices.

  • expand_wildcards string | array[string]

    Type of index that wildcard patterns can match. If the request can target data streams, this argument determines whether wildcard expressions match hidden data streams. Supports comma-separated values, such as open,hidden. Valid values are: all, open, closed, hidden, none.

  • force boolean

    If true, the request forces a flush even if there are no changes to commit to the index.

  • ignore_unavailable boolean

    If false, the request returns an error if it targets a missing or closed index.

  • wait_if_ongoing boolean

    If true, the flush operation blocks until execution when another flush operation is running. If false, Elasticsearch returns an error if you request a flush when another flush operation is running.

Responses

  • 200 application/json
    Hide response attribute Show response attribute object
    • _shards object

      Additional properties are allowed.

      Hide _shards attributes Show _shards attributes object
      • failed number Required
      • successful number Required
      • total number Required
      • failures array[object]
        Hide failures attributes Show failures attributes object
        • index string
        • node string
        • reason object Required

          Additional properties are allowed.

          Hide reason attributes Show reason attributes object
          • type string Required

            The type of error

          • reason string

            A human-readable explanation of the error, in english

          • stack_trace string

            The server stack trace. Present only if the error_trace=true parameter was sent with the request.

          • caused_by object

            Additional properties are allowed.

          • root_cause array[object]

            Additional properties are allowed.

          • suppressed array[object]

            Additional properties are allowed.

        • shard number Required
        • status string
      • skipped number
POST /{index}/_flush 
curl \
 -X POST http://api.example.com/{index}/_flush
Response examples (200) 
{
  "_shards": {
    "failed": 42.0,
    "successful": 42.0,
    "total": 42.0,
    "failures": [
      {
        "index": "string",
        "node": "string",
        "reason": {
          "type": "string",
          "reason": "string",
          "stack_trace": "string",
          "caused_by": {},
          "root_cause": [
            {}
          ],
          "suppressed": [
            {}
          ]
        },
        "shard": 42.0,
        "status": "string"
      }
    ],
    "skipped": 42.0
  }
}