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    Microservices Engine:Import and export data

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    Microservices Engine:Import and export data

    Last Updated:Mar 01, 2026

    Export snapshot files or transaction logs from a ZooKeeper instance to back up your znode data. Import snapshot files to restore or migrate data between instances.

    Prerequisites

    Before you begin, make sure that you have:

    Limits

    Feature Requirement
    Data import ZooKeeper instance version 3.8.0.1 or later
    Data export Professional Edition

    Exported files are retained for seven days. After a file expires, export it again.

    Export data

    1. Log on to the MSE console, and select a region in the top navigation bar.

    2. In the left-side navigation pane, choose Microservices Registry > Instances.

    3. On the Instances page, click the name of the instance.

    4. In the left-side navigation pane, choose Data Management > Znodes.

    5. On the Znodes page, click Data Export.

    6. In the Data Export dialog box, select a data type and click Export.

      Note

      The export takes about 2 to 5 minutes. After it finishes, the file appears in the Download List section.

      Data type

      Description

      Snapshot

      Exports the latest snapshot file.

      Transaction Log

      Exports up to the three most recent transaction log files.

    Download an exported file

    After you start an export, it appears in the Download List with the following columns:

    Column Description
    File Name Name of the exported file.
    File Type Snapshot or Transaction Log.
    Exported At Time when the export started.
    File Size Size of the exported file.
    Status Current status of the export.
    Status Description Action
    Downloadable The export is complete. Click Download in the Actions column.
    Export Failed The export failed. Follow the error message to resolve the issue, then export again.
    Expired The file has passed its seven-day retention period. Export the file again.

    Import data

    Important

    The existing data in the instance is deleted after you import data. This operation is irreversible. Back up your current data before you proceed.

    1. Log on to the MSE console, and select a region in the top navigation bar.

    2. In the left-side navigation pane, choose Microservices Registry > Instances.

    3. On the Instances page, click the name of the instance.

    4. In the left-side navigation pane, choose Data Management > Znodes.

    5. On the Znodes page, click Import Data.

    6. In the Import Data dialog box, click Upload Local File to upload the snapshot file, and click OK.

      Snapshot file size limits

      The maximum snapshot file size depends on the instance specification. Use at least 3 disaster recovery nodes in production environments.

      Maximum snapshot file size Minimum instance specification
      200 MB 1 vCPU, 2 GiB memory
      400 MB 2 vCPUs, 4 GiB memory
      800 MB 4 vCPUs, 8 GiB memory
      1,600 MB 8 vCPUs, 16 GiB memory
      3,200 MB 16 vCPUs, 32 GiB memory