Once your panel is enabled, you will notice several types of notifications.
The notification panel is the section that will provide suggestions to optimize your cluster.
How to access it?
- In the Cluster View screen
In the dashboard of the Data View screen
Notifications are organized into 3 groups: INFOS, WARNING, and DANGER.
Each notification comes with a way to address the issue.
By clicking on a notification, you will be able to see the details and a button to address it.
|INFO||LIMITED_TABLE||Display limited tables that should be converted into fact tables to reduce the memory consumption|
|WARNING||OPTIMIZE_TABLE||Display when a table has a percentage of queries using the main index only. You should run the optimizer to create new indexes|
|WARNING / DANGER||INDEX_SIZE|
Display when an index size is approaching index.memory.max_size.mb. Two thresholds, in notifications.json, define the gravity of the notification.
|WARNING / DANGER||TABLE_SIZE||Display when table size is approaching table.memory.max_size.mb. Two thresholds, in notifications.json, define the gravity of the notification.|
|DANGER||INTEGRITY_CHECK||Display tables that are corrupted and can't be restored.|
|WARNING||NEED_COMPACTION||Display tables that need an ALTER TABLE COMPACT because of shadow rows, provoked during multiple DELETE / LOAD operations.|
|INFO||DEPRECATED_PARAMETER||Display parameters in galactica.conf which are deprecated. These parameters will be removed in future versions.|
|INFO||UNUSED_INDEX||Display indexes which aren't been used for 30 days. They could be removed to reduce memory/disk spaces.|
|INFO||EXTERNAL_TABLE_WITHOUT_INDEX||Display external tables without any indexes, meaning that all queries will be delegated to the underlying database.|