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User Manual
DistSQL
Syntax
RAL Syntax
EXPORT METADATA

EXPORT METADATA

Description

The EXPORT METADATA syntax is used to export cluster metadata in JSON format.

Syntax

ExportMetaData ::=
  'EXPORT' 'METADATA' ('TO' 'FILE' filePath)?

filePath ::=
  string

Return Value Description

Columns Description
id current compute node id
create_time export time
cluster_info exported metadata (or success message when TO FILE is set)

Supplement

  • When filePath is not specified, the cluster_info column returns Base64-encoded metadata;
  • When filePath is specified, metadata is written to file and cluster_info returns a success message;
  • The parent directory of filePath will be created automatically if needed, and existing file content will be overwritten.

Example

EXPORT METADATA;
EXPORT METADATA TO FILE '/tmp/metadata.json';

Reserved word

EXPORT, METADATA, TO, FILE

Related links

UNLOCK CLUSTERIMPORT METADATA