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Monitoring dashboard

Last Updated: Jun 02, 2020

In the DAS console, you can customize monitoring dashboards.
If enterprise users want to manage multiple instances, they can customize multi-instance monitoring dashboards to correlate, compare, and view multiple instances and metrics.

Prerequisites

DAS has accessed the database instance and the access status is Accessed. The exception detection feature is only available to MySQL, MongoDB, Redis, and Apsara PolarDB for MySQL databases.

For more information about how to access a database instance, see

Monitoring metrics

The Custom Dashboard tab of DAS displays the following metrics (MySQL databases are used as an example).

You can view the description of each metric by clicking Icon 1 icon.

Metric Description
tps Formula: (Com_commit + Com_rollback)/Uptime
qps Formula: Questions/Uptime
active_session Active sessions
delete_ps The average number of DELETE statements executed per second
insert_ps The average number of INSERT statements executed per second
replace_ps The average number of REPLACE statements executed per second
update_ps The average number of UPDATE statements executed per second
select_ps The average number of SELECT statements executed per second
bytes_received The average number of bytes received from all clients per second
bytes_sent The average number of bytes sent to all clients per second
innodb_bp_hit The read hit rate of InnoDB buffer pool.
Formula: (Innodb_buffer_pool_read_requests - Innodb_buffer_pool_reads)/Innodb_buffer_pool_read_requests × 100%
innodb_bp_dirty_pct The dirty page ratio of InnoDB buffer pool.
Formula: Innodb_buffer_pool_pages_dirty/Innodb_buffer_pool_pages_data × 100%
innodb_bp_usage_pct The usage of InnoDB buffer pool.
Formula: Innodb_buffer_pool_pages_data/(Innodb_buffer_pool_pages_data + innodb_buffer_pool_pages_free) × 100%
innodb_data_written The average number of bytes written by InnoDB per second
innodb_data_read The average number of bytes read by InnoDB per second
innodb_rows_deleted The average number of rows deleted by InnoDB per second
innodb_rows_read The average number of rows read by InnoDB per second
innodb_rows_inserted The average number of rows inserted by InnoDB per second
innodb_rows_updated The average number of rows updated by InnoDB per second

Procedure

  1. Log on to the DAS console.

  2. In the left-side navigation pane, click Monitoring Dashboard.

  3. On the Custom Dashboard page, select a database engine tab.

  4. On the database engine tab, click Add Monitoring Dashboard.

  5. Enter a dashboard name and then click OK.

  6. Click Add Instances and Metrics.

  7. Select the target instances and metrics and then click the Icon 1 icon.Console 1

  8. Click Confirm.

  9. If you want to modify the instances or metrics, click Add Instances and Metrics on the Custom Dashboard page.