检测到您已登录华为云国际站账号，为了您更好的体验，建议您访问国际站服务网站 https://www.huaweicloud.com/intl/zh-cn
不再显示此消息
检测到您已登录华为云国际站账号，为了您更好的体验，建议您访问国际站服务网站 https://www.huaweicloud.com/intl/zh-cn
不再显示此消息
Manual backup A manual backup is a full backup of a DB instance and can be retained until you manually delete it. Manual backup can be triggered at any time to meet your service requirements. Regularly backing up your database is recommended.
On the Tags page, locate the tag to be deleted and click Delete in the Operation column. In the displayed dialog box, click Yes. View that the tag is no longer displayed on the Tags page. Search by Tag Log in to the Huawei Cloud console.
You can also delete nodes as required. For details, see Manually Deleting Instance Nodes. Currently, a maximum of 60 nodes are supported. To create more nodes, choose Service Tickets > Create Service Ticket in the upper right corner of the console and contact customer service.
Figure 9 Searching for a command On the My Commands page, you can also create, edit, and delete a command or copy it to the command window. Figure 10 Managing a command Clear commands. You can also press F10 to clear the command in the command window.
Data Definition Language (DDL) is used to create, modify, and delete database objects, such as tables, indexes, views, functions, stored procedures, and triggers. When you change the CPU or memory of an instance, the change takes effect on all nodes in sequence.
Rows Mean of limit difference ≥ 0 - N/A GeminiDB Cassandra instance nodes 1 minute cassandra174_tombstone_query_rate Tombstone Query Requests per Second Rate of tombstone query requests ≥ 0 Counts/s N/A GeminiDB Cassandra instance nodes 1 minute cassandra175_single_delete_rate Row Delete
USE db_name Delete a database.
Query and Write Operation Commands find √ - insert √ - update √ - delete √ - findAndModify √ - getMore √ - getLastError √ - parallelCollectionScan x System command Query Plan Cache Commands planCacheListFilters √ - planCacheSetFilter √ - planCacheClearFilters √ - planCacheListQueryShapes
Manual backup A manual backup is a full backup of a DB instance and can be retained until you manually delete it. Manual backup can be triggered at any time to meet your service requirements. Regularly backing up your database is recommended.
On the displayed page, locate the account that you want to delete and click Delete. In the displayed dialog box, click OK. Figure 7 Deleting an account Verify that the deleted account is no longer displayed.
In Read-Only Mode kill query √ √ show queries √ √ Querying, Writing, and Deleting Data Points Table 5 Commands supported by data points Command Supported In Read/Write Mode Supported In Read-Only Mode select √ √ select xxx into √ √ insert into √ × insert √ × limit √ √ offset √ √ delete
The operations can be query, insert, update, delete, or command. ns indicates the target collection. For details, see the db.currentOp() command in the official document. Based on the command output, check whether there are requests that take prolonged periods to process.
Figure 16 Searching for a command On the My Commands page, you can also create, edit, and delete a command or copy it to the command window. Figure 17 Managing a command Clear You can also press F10 to clear the command in the command window.
If you delete an instance running out of storage, it will not be moved to the recycle bin. For details about other development and O&M specifications that can effectively evaluate and improve service system stability, see Database Constraints. Parent Topic: Service Overview
Value options: SELECT DELETE SHOW DROP CREATE ALTER node_id No String Node ID. If this parameter is left blank, all nodes in the instance can be queried.
If you delete an instance running out of storage, it will not be moved to the recycle bin. Parent Topic: Service Overview
Delete any unnecessary indexes and create any necessary indexes before migration. If you choose to migrate a sharded cluster, you must create a set of shards in the destination database and configure sharding. In addition, indexes must be created before migration.
If you delete an instance running out of storage, it will not be moved to the recycle bin. For details about other development and O&M specifications that can effectively evaluate and improve service system stability, see Development and O&M Rules. Parent Topic: Service Overview
Delete data from the cyclist_name table. To ensure data security, the TRUNCATE command is not supported. DELETE FROM cycling.cyclist_name WHERE id = 'fb372533-eb95-4bb4-8685-6ef61e994caa'; No data exists in the table.
-:+=@/ After an instance is created, you can view its tags on the Tags tab and can also add, modify, and delete tags of your instance. For details, see Managing GeminiDB Cassandra Instance Tags.
