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Configuring YML Parameters

Updated on 2024-12-02 GMT+08:00

You can modify the elasticsearch.yml file.

Modifying Parameter Configurations

  1. Log in to the CSS management console.
  2. Choose Clusters in the navigation pane. On the Clusters page, click the name of the target cluster. The cluster information page is displayed.
  3. Click Parameter Configurations and click Edit to modify module parameters as required.
    Table 1 Module parameters

    Module Name

    Parameter

    Description

    Cross-domain Access

    http.cors.allow-credentials

    Whether to return the Access-Control-Allow-Credentials of the header during cross-domain access

    Value: true or false

    Default value: false

    http.cors.allow-origin

    Origin IP address allowed for cross-domain access, for example, 122.122.122.122:9200

    http.cors.max-age

    Cache duration of the browser. The cache is automatically cleared after the time range you specify.

    Unit: s

    Default value: 1,728,000

    http.cors.allow-headers

    Headers allowed for cross-domain access, including X-Requested-With, Content-Type, and Content-Length. Use commas (,) and spaces to separate headers.

    http.cors.enabled

    Whether to allow cross-domain access

    Value: true or false

    Default value: false

    http.cors.allow-methods

    Methods allowed for cross-domain access, including OPTIONS, HEAD, GET, POST, PUT, and DELETE. Use commas (,) and spaces to separate methods.

    Reindexing

    reindex.remote.whitelist

    Configured for migrating data from the current cluster to the target cluster through the reindex API. The example value is 122.122.122.122:9200.

    Custom Cache

    indices.queries.cache.size

    Cache size in the query phase

    Value range: 1 to 100

    Unit: %

    Default value: 10%

    Queue Size in a Thread Pool

    thread_pool.bulk.queue_size

    Queue size in the bulk thread pool. The value is an integer. You need to customize this parameter.

    Default value: 200

    thread_pool.write.queue_size

    Queue size in the write thread pool. The value is an integer. You need to customize this parameter.

    Default value: 200

    thread_pool.force_merge.size

    Queue size in the force merge thread pool. The value is an integer.

    Default value: 1

    Customize

    You can add parameters based on your needs.

    Customized parameters

    NOTE:
    • Enter multiple values in the format as [value1, value2, value3...].
    • Separate values by commas (,) and spaces.
    • Colons (:) are not allowed.
  4. After the modification is complete, click Submit.In the displayed Submit Configuration dialog box, select the box indicating "I understand that the modification will take effect after the cluster is restarted." and click Yes.

    If the Status is Succeeded in the parameter modification list, the modification has been saved. Up to 20 modification records can be displayed.

  5. Return to the cluster list and choose More > Restart in the Operation column to restart the cluster and make the modification take effect.
    • You need to restart the cluster after modification, or Configuration unupdated will be displayed in the Task Status column on the Clusters page.
    • If you restart the cluster after the modification, and Task Status displays Configuration error, the parameter configuration file fails to be modified.

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