Scylla Monitoring Stack Advisor¶

The Advisor section¶

The Advisor section is located on the Overview dashboard and holds the Advisor issues table. Each issue has a category, a link to jump to a relevant dashboard, and a description of the issue.

For example, the Advisor could warn about using large cells. Large cells in the data usually indicate a problem with the data model or a problem with the client code, and can impact system performance.

Each Advisor issue is explained in detail:

• Some queries use ALLOW FILTERING

• Some queries use Consistency Level: ALL

• Some queries use Consistency Level: ANY

• Some queries are not token-aware

• Some SELECT queries are non-paged

• Some queries are non-prepared

• Some operation failed due to unsatisfied consistency level

• I/O Errors can indicate a node with a faulty disk

• Some operations failed on the replica side

• CQL queries are not balanced among shards

• Prepared statements cache eviction