# Cassandra
LLMS index: [llms.txt](/llms.txt)
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## Cassandra Attributes
This section defines attributes for Cassandra.
**Attributes:**
| Key | Stability | Value Type | Description | Example Values |
| --- | --- | --- | --- | --- |
| `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` |
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`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 |  |