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Yandex Data Transfer
  • Getting started
  • Step-by-step instructions
    • All instructions
    • Managing a source endpoint
      • Creating a source endpoint
      • Updating a source endpoint
      • Deleting a source endpoint
    • Managing a target endpoint
      • Creating a target endpoint
      • Updating a target endpoint
      • Deleting a target endpoint
    • Managing the transfer process
      • Creating a transfer
      • Updating a transfer
      • Deleting a transfer
  • Concepts
    • Relationship between service resources
    • What tasks is the service used for?
    • Service specifics
      • Overview
      • MySQL specifics
      • PostgreSQL specifics
    • Monitoring transfers
    • Quotas and limits
  • Access management
  • Pricing policy
  • Questions and answers
  1. Concepts
  2. Monitoring transfers

Monitoring transfers

  • Replication
  • Copy

Data Transfer supports transfer monitoring. To track data copying and replication processes, go to the Monitoring tab and use metrics.

Replication

  • Maximum lag on delivery, [s] is the maximum delay time for applying changes to the target.

    sinker.pusher.time.row_max_lag_sec is the difference in seconds between the time when a change is detected on the source and the time when it's applied on the target. Calculated for each row. For a snapshot, the point when a change is detected on the source is the copy start time.

    The chart shows the maximum value for all rows in the transaction.

  • Tables sync progress, [rows] is the progress of applying changes to the target.

    sinker.table.rows is the number of rows found on the target.

    The chart shows the number of rows found for each table within 15 seconds. The table name is set in the table tag.

Copy

  • Await to copy, [rows] is the number of remaining rows when copying a snapshot.

    task.snapshot.remainder.table is counted for each table. After the copy is complete, all values are reset to zero. The table name is set in the table tag.

In this article:
  • Replication
  • Copy
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