Cassandra架构,
use testscheduler;
create columnfamily TaskSchedule
with column_type = 'Standard'
and comparator = 'CompositeType(DateType,UTF8Type,UTF8Type)'
and default_validation_class = 'UTF8Type'
and key_validation_class = 'CompositeType(Int32Type,UTF8Type)'
and read_repair_chance = 0.2
and dclocal_read_repair_chance = 0.0
and populate_io_cache_on_flush = false
and gc_grace = 43200
and min_compaction_threshold = 4
and max_compaction_threshold = 32
and replicate_on_write = true
and compaction_strategy = 'org.apache.cassandra.db.compaction.LeveledCompactionStrategy'
and caching = 'KEYS_ONLY'
and compression_options = null;
我试过" Keyspace schema import and export in Cassandra"这个例子,我的currunt cassandra版本不支持" cassandra-cli"命令。如何将上面提到的模式导入到cassandra-3.11.0。感谢。
答案 0 :(得分:0)
cassandra-cli
,而是使用cqlsh
(您的代码段也是CQL(cassandra查询语言),需要cqlsh)。您可以在尝试创建表之前创建键空间。
CREATE KEYSPACE testscheduler WITH replication = {'class':'SimpleStrategy',
'replication_factor' : 1};
有一些很好的教程,例如https://www.tutorialspoint.com/cassandra/和https://academy.datastax.com/。
答案 1 :(得分:0)
您应该使用 create table 而不是以适当的格式创建columnfamily
请参阅datastax文档 http://docs.datastax.com/en/cql/3.3/cql/cql_reference/cqlCreateTable.html#cqlCreateTable