Cassandra CQL client.

CQL Cassandra driver supporting native protocol versions 3 and 4.

This library uses the cql library which implements Cassandra's CQL protocol and complements it with the neccessary I/O operations. The feature-set includes:

• Node discovery. The driver discovers nodes automatically from a small set of bootstrap nodes.

• Customisable load-balancing policies. In addition to pre-built LB policies such as round-robin, users of this library can provide their own policies if desired.

• Support for connection streams. Requests can be multiplexed over a few connections.

• Customisable retry settings. Support for default retry settings as well as local overrides per query.

• Prepared queries. Prepared queries are an optimisation which parse and prepare a query only once on Cassandra nodes but execute it many times with different concrete values.

• TLS support. Client to node communication can optionally use transport layer security (using HsOpenSSL).

CQL Cassandra driver

This library uses the cql library which implements Cassandra's CQL protocol and complements it with the neccessary I/O operations. The feature-set includes:

Node discovery

The driver discovers nodes automatically from a small set of bootstrap nodes.

Customisable load-balancing policies

In addition to pre-built LB policies such as round-robin, users of this library can provide their own policies if desired.

Support for connection streams

Requests can be multiplexed over a few connections.

Customisable retry settings

Support for default retry settings as well as local overrides per query.

Prepared queries

Prepared queries are an optimisation which parse and prepare a query only once on Cassandra nodes but execute it many times with different concrete values.

TLS support

Client to node communication can optionally use transport layer security (using HsOpenSSL).

License

See LICENSE.

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Copyright © 2018 Apache Software Foundation

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at https://www.apache.org/licenses/LICENSE-2.0. Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.