cql-io: Cassandra CQL client.

[ database, library, mpl ] [ Propose Tags ]

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).


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Versions [RSS] 0.9.6, 0.9.7, 0.10.1, 0.12.0, 0.12.1, 0.12.2, 0.13.0, 0.13.1, 0.13.2, 0.14.1, 0.14.2, 0.14.3, 0.14.4, 0.14.5, 0.15.2, 0.16.0, 1.0.0, 1.0.1, 1.0.1.1, 1.1.0, 1.1.1
Change log CHANGELOG
Dependencies async (>=2.0), auto-update (>=0.1), base (>=4.9 && <5.0), bytestring (>=0.10), containers (>=0.5), cql (>=4.0), cryptohash (>=0.11), data-default-class, exceptions (>=0.4), hashable (>=1.2), HsOpenSSL (>=0.11), iproute (>=1.3), lens (>=4.4), monad-control (>=0.3), mtl (>=2.1), mwc-random (>=0.13), network (>=2.4), retry (>=0.7), semigroups (>=0.15), stm (>=2.4), text (>=0.11), time (>=1.4), tinylog (>=0.8), transformers (>=0.3), transformers-base (>=0.4), unordered-containers (>=0.2), uuid (>=1.2.6), vector (>=0.10) [details]
License MPL-2.0
Copyright (C) 2014-2016 Toralf Wittner
Author Toralf Wittner
Maintainer Toralf Wittner <tw@dtex.org>, Roman S. Borschel <roman@pkaboo.org>
Category Database
Home page https://gitlab.com/twittner/cql-io/
Bug tracker https://gitlab.com/twittner/cql-io/issues
Source repo head: git clone https://gitlab.com/twittner/cql-io
Uploaded by romanb at 2018-06-25T19:58:24Z
Distributions LTSHaskell:1.1.1, Stackage:1.1.1
Reverse Dependencies 2 direct, 0 indirect [details]
Downloads 15228 total (61 in the last 30 days)
Rating 2.0 (votes: 1) [estimated by Bayesian average]
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Status Docs available [build log]
Last success reported on 2018-06-25 [all 1 reports]

Readme for cql-io-1.0.1

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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).