在Flink SQL中使用SQL客户端时,我们如何使用查询配置?

时间:2019-09-17 08:55:45

标签: apache-flink flink-streaming flink-sql retention

在Flink SQL中使用SQL客户端时,我们如何使用查询配置?

与下面的链接中提到的方式相同 https://ci.apache.org/projects/flink/flink-docs-release-1.9/dev/table/streaming/query_configuration.html

要使用空闲状态保留时间。

1 个答案:

答案 0 :(得分:1)

Flink的SQL客户端在启动时可以读取YAML配置文件,并且该文件可以包含空闲状态保留规范。例如,您可以通过

启动客户端

sql-client.sh embedded -e sql-client-config.yaml

配置文件所在的位置

execution:
  planner: old                      # optional: either 'old' (default) or 'blink'
  type: streaming                   # required: execution mode either 'batch' or 'streaming'
  result-mode: table                # required: either 'table' or 'changelog'
  max-table-result-rows: 1000000    # optional: maximum number of maintained rows in
                                    #   'table' mode (1000000 by default, smaller 1 means unlimited)
  time-characteristic: event-time   # optional: 'processing-time' or 'event-time' (default)
  parallelism: 1                    # optional: Flink's parallelism (1 by default)
  periodic-watermarks-interval: 200 # optional: interval for periodic watermarks (200 ms by default)
  min-idle-state-retention: 0       # optional: table program's minimum idle state time
  max-idle-state-retention: 0       # optional: table program's maximum idle state time

有关更多详细信息,请参见the docs