Znodes are the fundamental data units in a ZooKeeper engine. Each znode stores data at a unique path in a hierarchical tree structure, similar to a file system. The ZooKeeper engine uses znodes to coordinate distributed applications, supporting synchronization and configuration management.
Prerequisites
Before you begin, make sure that you have:
Create a znode
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Log on to the MSE console, and select a region in the top navigation bar.
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In the left-side navigation pane, choose Microservices Registry > Instances.
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On the Instances page, click the name of the instance.
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In the left-side navigation pane, choose Data Management > Znodes.
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On the Znodes page, click Create Node.
By default, the ZooKeeper engine contains a znode named zookeeper with three child nodes: agent, config, and quota.
NoteThe Znodes page also displays node paths and znode data created through API operations in your application.
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In the Create Node dialog box, specify the Node Path and Node Data parameters, and then click OK.
After the znode is created, return to the Znodes page to view the znode and its data.
Manage znodes
On the Znodes page, right-click a znode name to open the shortcut menu. The following operations are available:
| Operation | Description |
|---|---|
| Add Same Level | Create a sibling znode at the same level in the hierarchy. |
| Add sub-level | Create a child znode under the selected znode. |
| Delete | Delete the selected znode. |
