[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-08-18。"],[[["\u003cp\u003eDatabase Migration Service provides metrics to monitor the health and progress of data migration jobs.\u003c/p\u003e\n"],["\u003cp\u003eThe Replication Delay metric indicates how many bytes the destination database lags behind the source, crucial for determining when to promote a continuous migration without data loss.\u003c/p\u003e\n"],["\u003cp\u003eStorage Usage metric helps you see the storage consumed by the destination Cloud SQL instance to give you a rough estimate of the migration job progression.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003emigration_job/initial_sync_complete\u003c/code\u003e metric indicates if a database or the entire migration job has finished the full dump phase.\u003c/p\u003e\n"],["\u003cp\u003eThe metrics \u003ccode\u003emigration_job/max_replica_bytes_lag\u003c/code\u003e and \u003ccode\u003emigration_job/max_replica_sec_lag\u003c/code\u003e help in understanding the amount of uncopied log data, and the time the destination is behind the source, for a database or the whole migration job respectively.\u003c/p\u003e\n"]]],[],null,["# Migration job metrics\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n[MySQL](/database-migration/docs/mysql/migration-job-metrics \"View this page for the MySQL version of Database Migration Service.\") \\| PostgreSQL \\| [PostgreSQL to AlloyDB](/database-migration/docs/postgresql-to-alloydb/migration-job-metrics \"View this page for the PostgreSQL to AlloyDB version of Database Migration Service.\")\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nDatabase Migration Service collects and displays migration job metrics that represent the health and progress of your data migration process.\n\nThe following table lists and describes the migration job metrics that you can view on the migration job details page. You can view the following metrics for all databases included in your migration job or only the databases that you selected for migration:\n\nYou can view all [Database Migration Service Cloud Monitoring metrics that relate to migration job performance](/monitoring/api/metrics_gcp_d_h#gcp-datamigration) in the Metrics Explorer. To view each diagram directly in Cloud Monitoring, click more_vert**More chart options \\\u003e View in Metrics Explorer** .\n\n\u003cbr /\u003e\n\nYou can use the following metrics to monitor your migrations:\n\n- The [`migration_job/initial_sync_complete`](/monitoring/api/metrics_gcp_d_h#datamigration/migration_job/initial_sync_complete) metric indicates when the full dump phase is complete for a specific database or the entire migration job. You can view this metric on a migration level or a database level by applying the `database` label. If the database label is present, the metric value is for that particular database. If the label is not populated, the metric value is for the entire migration job.\n- The [`migration_job/max_replica_bytes_lag`](/monitoring/api/metrics_gcp_d_h#datamigration/migration_job/max_replica_bytes_lag) metric shows the size of log data that are not yet replicated to the destination. You can view this metric on a migration level or a database level by applying the `database` label. If the database label is present, the metric value is for that particular database. If the label is not populated, the metric value is for the entire migration job.\n- The [`migration_job/max_replica_sec_lag`](/monitoring/api/metrics_gcp_d_h#datamigration/migration_job/max_replica_sec_lag) metric shows the time (in seconds) that the destination database is behind the source database. You can view this metric only at the migration level.\n\nFor more information about the Metrics Explorer, see [Create charts with Metrics Explorer](/monitoring/charts/metrics-explorer)."]]
