# Cassandra ## Cassandra Attributes This section defines attributes for Cassandra. | Attribute | Type | Description | Examples | Stability | |---|---|---|---|---| | `cassandra.consistency.level` | string | The consistency level of the query. Based on consistency values from [CQL](https://docs.datastax.com/en/cassandra-oss/3.0/cassandra/dml/dmlConfigConsistency.html). | `all`; `each_quorum`; `quorum` |  | | `cassandra.coordinator.dc` | string | The data center of the coordinating node for a query. | `us-west-2` |  | | `cassandra.coordinator.id` | string | The ID of the coordinating node for a query. | `be13faa2-8574-4d71-926d-27f16cf8a7af` |  | | `cassandra.page.size` | int | The fetch size used for paging, i.e. how many rows will be returned at once. | `5000` |  | | `cassandra.query.idempotent` | boolean | Whether or not the query is idempotent. | |  | | `cassandra.speculative_execution.count` | int | The number of times a query was speculatively executed. Not set or `0` if the query was not executed speculatively. | `0`; `2` |  | --- `cassandra.consistency.level` has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used. | Value | Description | Stability | |---|---|---| | `all` | all |  | | `any` | any |  | | `each_quorum` | each_quorum |  | | `local_one` | local_one |  | | `local_quorum` | local_quorum |  | | `local_serial` | local_serial |  | | `one` | one |  | | `quorum` | quorum |  | | `serial` | serial |  | | `three` | three |  | | `two` | two |  |