Configuring YML Parameters¶
You can modify the elasticsearch.yml file.
Modifying Parameter Configurations¶
Log in to the CSS management console.
Choose Clusters in the navigation pane. On the Clusters page, click the name of the target cluster. The cluster information page is displayed.
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
Indicates 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
Default browser cache duration. The cache is automatically cleared after the time range you specified.
Unit: s
Default value: 1728000
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
Indicates 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
Configure this parameter to migrate 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 of [value1, value2, value3...].
Separate values by commas (,) and spaces.
Colons (:) are not allowed.
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.
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.