在Cassandra 3.11.0中导入模式

Question

Cassandra模式，

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;

我试过用"Keyspace schema import and export in Cassandra“这个例子，我现在的cassandra版本不支持”cassandra“命令。如何将上面提到的模式导入cassandra-3.11.0。谢谢。

Answer 1

不建议使用cassandra-cli，而是使用cqlsh (您的代码片段也使用CQL (cassandra )，它需要cqlsh)。在尝试创建表之前，可以先创建密钥空间。

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/。