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Metrics
By default, MOLT Fetch exports Prometheus metrics at 127.0.0.1:3030/metrics. You can configure this endpoint with the --metrics-listen-addr flag.
Cockroach Labs recommends monitoring the following metrics:
| Metric Name | Description |
|---|---|
molt_fetch_num_tables |
Number of tables that will be moved from the source. |
molt_fetch_num_task_errors |
Number of errors encountered by the fetch task. |
molt_fetch_overall_duration |
Duration (in seconds) of the fetch task. |
molt_fetch_rows_exported |
Number of rows that have been exported from a table. For example:molt_fetch_rows_exported{table="public.users"} |
molt_fetch_rows_imported |
Number of rows that have been imported from a table. For example:molt_fetch_rows_imported{table="public.users"} |
molt_fetch_table_export_duration_ms |
Duration (in milliseconds) of a table's export. For example:molt_fetch_table_export_duration_ms{table="public.users"} |
molt_fetch_table_import_duration_ms |
Duration (in milliseconds) of a table's import. For example:molt_fetch_table_import_duration_ms{table="public.users"} |
You can also use the sample Grafana dashboard to view the preceding metrics.
