cassandra - cassandra 无法创建表 keyerror

Question

我试图创建一个表，但得到这个错误 -

    keyspace = cluster.metadata.keyspaces[ks_name]
KeyError: 'cqlengine'

楷模：

import uuid
from cqlengine import columns
from cqlengine.models import Model
from datetime import datetime
from cqlengine.management import sync_table


class Tickets(Model):
    ticket_id = columns.UUID(primary_key=True, default=uuid.uuid4)
    created_dt = columns.DateTime(default=datetime.now())
    division = columns.Text()
    pg = columns.Text()
    duration = columns.Text()
    error_count = columns.Text()
    outage_caused = columns.Text()
    system_caused = columns.Text()
    addt_notes = columns.Text()
    ticket_num = columns.Text()
    ticket_type = columns.Text()
    row_create_ts = columns.DateTime(default=datetime.now())
    row_end_ts = columns.DateTime(
        default='9999-12-31 00:00:00.00000-00')


#connection.setup(['127.0.0.1'], "cqlengine", protocol_version=3)
# sync_table(Tickets)
from cqlengine import connection
connection.setup(["localhost"], "cqlengine")
sync_table(Tickets)

Answer 1

该错误是因为您尚未创建名为cqlengine. 使用前需要先创建一个keyspace。在这种情况下，需要使用cqlsh创建一个keyspace，名为cqlengine，运行前sync_table。