зеркало из https://github.com/Azure/YCSB.git
74 строки
2.6 KiB
Markdown
74 строки
2.6 KiB
Markdown
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Copyright (c) 2015 YCSB contributors. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License"); you
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may not use this file except in compliance with the License. You
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may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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implied. See the License for the specific language governing
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permissions and limitations under the License. See accompanying
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LICENSE file.
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-->
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# Apache Cassandra 2.x CQL binding
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Binding for [Apache Cassandra](http://cassandra.apache.org), using the CQL API
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via the [DataStax
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driver](http://docs.datastax.com/en/developer/java-driver/2.1/java-driver/whatsNew2.html).
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To run against the (deprecated) Cassandra Thrift API, use the `cassandra-10` binding.
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## Creating a table for use with YCSB
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For keyspace `ycsb`, table `usertable`:
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cqlsh> create keyspace ycsb
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WITH REPLICATION = {'class' : 'SimpleStrategy', 'replication_factor': 3 };
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cqlsh> USE ycsb;
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cqlsh> create table usertable (
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y_id varchar primary key,
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field0 varchar,
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field1 varchar,
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field2 varchar,
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field3 varchar,
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field4 varchar,
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field5 varchar,
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field6 varchar,
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field7 varchar,
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field8 varchar,
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field9 varchar);
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**Note that `replication_factor` and consistency levels (below) will affect performance.**
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## Cassandra Configuration Parameters
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- `hosts` (**required**)
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- Cassandra nodes to connect to.
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- No default.
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* `port`
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* CQL port for communicating with Cassandra cluster.
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* Default is `9042`.
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- `cassandra.keyspace`
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Keyspace name - must match the keyspace for the table created (see above).
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See http://docs.datastax.com/en/cql/3.1/cql/cql_reference/create_keyspace_r.html for details.
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- Default value is `ycsb`
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- `cassandra.username`
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- `cassandra.password`
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- Optional user name and password for authentication. See http://docs.datastax.com/en/cassandra/2.0/cassandra/security/security_config_native_authenticate_t.html for details.
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* `cassandra.readconsistencylevel`
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* `cassandra.writeconsistencylevel`
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* Default value is `ONE`
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- Consistency level for reads and writes, respectively. See the [DataStax documentation](http://docs.datastax.com/en/cassandra/2.0/cassandra/dml/dml_config_consistency_c.html) for details.
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* *Note that the default setting does not provide durability in the face of node failure. Changing this setting will affect observed performance.* See also `replication_factor`, above.
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