3.12. Monitoring Cloud Databases

Monitoring is available for Cloud Databases to allow users to get more information about their database instances via the monitoring checks that are available. The monitoring capability now applies to all instances, not just those that were created after the v1.0.27 release on July 29, 2013.

There is a 1:1 mapping of Cloud Databases to monitoring entities. The monitoring entity has a field called agent_id that is the same as the Cloud Database instance id

A user can list the monitoring checks available on the monitoring entity by calling the monitoring API List Checks call as described at http://docs.rackspace.com/cm/api/v1.0/cm-devguide/content/service-checks.html#service-checks-list.

The following monitoring checks are available to users:

  • Load Average

  • CPU

  • Memory

  • Storage (Disk)

  • Network

  • Database

    The following data points are supported on the Database checks:

    • core.aborted_clients

    • core.queries

    • core.connections

    • core.uptime

    • threads.created

    • threads.running

    • threads.connected

    • qcache.queries_in_cache

    • qcache.lowmem_prunes

    • qcache.free_memory

    • qcache.total_blocks

    • qcache.inserts

    • qcache.hits

    • qcache.not_cached

    • qcache.free_blocks

    • innodb.buffer_pool_pages_total

    • innodb.buffer_pool_pages_flushed

    • innodb.row_lock_time_avg

    • innodb.rows_inserted

    • innodb.row_lock_time_max

    • innodb.rows_updated

    • innodb.buffer_pool_pages_free

    • innodb.buffer_pool_pages_dirty

    • innodb.row_lock_time

    • innodb.rows_deleted

    • innodb.rows_read

A user can exercise these checks by calling the monitoring API Test Existing Check call as described at http://docs.rackspace.com/cm/api/v1.0/cm-devguide/content/service-checks.html#service-checks-test-existing.

Monitoring alarms available to users include:

  • Storage alarm sent via email to the default admin notification list

    • label = Low Disk Space

    • WARNING > 90% used

      message emits = Less than 10% free space left.

    • CRITICAL > 95% used

      message emits = Less than 5% free space left.


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