Apache Cassandra Advanced Properties
Following tables list the advanced properties that you can add to the store.xml file for Apache Cassandra. The table lists the property key names which are unique for each property and data type. You can provide the UI display name and default value as you want in store.xml, for example:
<property name="query.opt.consistency.level" displayName="Query Consistency Level" type="String" default="LOCAL_ONE" mandatory="false" />
Connection Properties
| Property Name | Type | Description |
|---|---|---|
| clusterName | String | An optional name for the created cluster. If not provided, a default name is created. It isused for JMX reporting of metrics. |
| compressionProtocol | String |
Configures the compression protocol to use for the transport. The values are:
|
| reconnectionPolicy | String |
Configures the reconnection policy to use for the new cluster. The values are:
|
| constantDelayMs | Integer | The constant delay in milliseconds used by the Constant reconnection policy. |
| baseDelayMs | Integer | The base delay in milliseconds for the Exponential reconnection policy. |
| maxDelayMs | Integer | The maximum delay in milliseconds between reconnection
attempts for the Exponential reconnection policy. |
| retryPolicy | String |
Configures the retry policy to use for the new cluster. The values are:
|
| loggingRetryPolicy | Boolean |
Provides option to enable a retry policy that wraps another policy and logs the decision made by the wrapped policy. This policy only logs
RETRY and IGNORE decisions. |
| enableMetrics | Boolean | Provides option to enable or disable the metrics collection for the created cluster. |
| useJMX | Boolean | Provides option to enable or disable JMX reporting of the metrics. |
QueryOptions
The following properties provide configurations related to defaults for individual queries.
| Property Name | Type | Description |
|---|---|---|
| query.opt.consistency. level |
String | Configures the consistency level of the query. |
| query.opt.idempotence | Boolean | Provides option to make a query idempotent. |
| query.opt.fetchSize | Integer | Fetch size for query |
| query.opt.maxPending RefreshNodeListRequests |
Integer | Maximum number of the node list refresh requests that the control connection can accumulate before executing them. |
| query.opt.maxPending RefreshNodeRequests |
Integer | The maximum number of node refresh requests that the control connection can accumulate before executing them |
| query.opt.maxPending RefreshSchemaRequests |
Integer | The maximum number of schema refresh requests that the control connection can accumulate before executing them. |
| query.opt.prepareOnAll Hosts |
Boolean | Provides option to enable the driver to prepare statements on all hosts in the cluster. |
| query.opt.refreshNode IntervalMillis |
Integer | The default window size in milliseconds used to debounce node refresh requests |
| query.opt.refreshNode ListIntervalMillis |
Integer | The default window size in milliseconds used to debounce node list refresh requests |
| query.opt.refreshSchema IntervalMillis |
Integer | The default window size in milliseconds used to debounce schema refresh requests. |
| query.opt.rePrepareOnUp | Boolean | Provides option to enable the driver to re-prepare all cached prepared statements on a host when it marks it to be backed up. |
| query.opt.serial consistency.level |
String | Configures the serial consistency level for the query. |
Pooling Options
The following properties provides configurations related to connection pooling.
| Property Name | Type | Description |
|---|---|---|
| pooling.opt.heartbeat Interval |
Integer | The heart beat interval after which a message is sent on an idle connection to make sure it's still alive. |
| pooling.opt.idleTimeout | Integer | The timeout before an idle connection is removed. |
| pooling.opt.poolTimeout | Integer | The timeout when trying to acquire a connection from a host's pool. |
| pooling.opt.remote.core Connections |
Integer | The core number of connections for remote host. |
| pooling.opt.remote.max Connections |
Integer | The maximum number of connections for remote host. |
| pooling.opt.remote.max RequestsPerConnection |
Integer | The maximum number of requests per connection for remote host. |
| pooling.opt.remote.new ConnectionThreshold |
Integer | The threshold that triggers the creation of a new connection to a remote host. |
| pooling.opt.local.core Connections |
Integer | The core number of connections for remote host. |
| pooling.opt.local.max Connections |
Integer | The maximum number of connections for remote host. |
| pooling.opt.local.max RequestsPerConnection |
Integer | The maximum number of requests per connection for local host. |
| pooling.opt.local.new ConnectionThreshold |
Integer | The threshold that triggers the creation of a new connection to a local host. |