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This page lists the metrics that you can use to observe the progress of a MOLT Fetch command execution.

Metrics

By default, MOLT Fetch exports Prometheus metrics at 127.0.0.1:3030/metrics. You can configure this endpoint with the flag. Cockroach Labs recommends monitoring the following metrics:
Metric NameDescription
molt_fetch_num_tablesNumber of tables that will be moved from the source.
molt_fetch_num_task_errorsNumber of errors encountered by the fetch task.
molt_fetch_overall_durationDuration (in seconds) of the fetch task.
molt_fetch_rows_exportedNumber of rows that have been exported from a table. For example:
molt_fetch_rows_exported{table="public.users"}
molt_fetch_rows_importedNumber of rows that have been imported from a table. For example:
molt_fetch_rows_imported{table="public.users"}
molt_fetch_table_export_duration_msDuration (in milliseconds) of a table’s export. For example:
molt_fetch_table_export_duration_ms{table="public.users"}
molt_fetch_table_import_duration_msDuration (in milliseconds) of a table’s import. For example:
molt_fetch_table_import_duration_ms{table="public.users"}
To visualize the preceding metrics, use the Grafana dashboard . The bundled dashboard matches your binary version. Alternatively, you can download the latest dashboard.

See also