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BigData / Apache StreamPark Interview questions

What alert channels does StreamPark support?

StreamPark's alert configuration currently supports four channels, and any combination of them can be enabled at once:

  • E-mail — standard mail notification.
  • DingTalk — via a DingTalk custom group robot.
  • WeChat (Enterprise WeChat / WeCom) — via a custom group robot.
  • Lark (Feishu) — via a custom group robot.

Each channel is configured under Setting > Alert Setting, where you name the alert config, choose its type, and supply the channel-specific details (an email address, or a robot token/webhook). SMS and generic webhook callbacks are on the project's roadmap but aren't built-in channels today.

Which of these is a built-in StreamPark alert channel?
Can multiple alert channels be enabled together for one alert?

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What is Apache StreamPark? What are the two core components of Apache StreamPark? What is StreamPark Core? What is StreamPark Console? What stream processing engines does StreamPark support? What is the origin of the name StreamPark? What deployment modes does StreamPark support for Flink jobs? What is Project Management in StreamPark? What alert channels does StreamPark support? What is Team Management in StreamPark? What is Variable Management in StreamPark? How do you create a Flink SQL job in StreamPark Console? What is the purpose of Yarn Queue Management in StreamPark? What technologies power StreamPark Console under the hood? What is a savepoint, and how does StreamPark use it? What database does StreamPark use to store its own metadata? What is the difference between StreamPark Core and StreamPark Console? What is the difference between YARN Application mode and YARN Session mode in StreamPark? What is the difference between Kubernetes Application mode and Kubernetes Session mode? Why does StreamPark recommend Application mode over Session mode for production jobs? How does StreamPark's Project Management integrate with CI/CD pipelines? How do you configure a DingTalk alert in StreamPark? When should you use StreamPark's Remote (Standalone) deployment mode? How does StreamPark support running multiple Flink versions side by side? What is the difference between Upload Jar and Flink SQL job development in StreamPark? Why isn't the MySQL JDBC driver bundled with StreamPark by default? How does the Team concept enable multi-tenancy in StreamPark? What is the difference between the ADMIN and USER roles in StreamPark? How do you troubleshoot a Flink job that fails to start from StreamPark Console? What role do flame graphs play in StreamPark's job monitoring? How does Yarn Queue Management prevent queue submission errors? When would you choose StreamPark over writing raw Flink CLI submission scripts? How does StreamPark integrate with Apache Paimon for streaming warehouses? Why does StreamPark offer both Scala and Java interfaces for development? What is the difference between StreamPark's HOCON config support and Flink's default flink-conf.yaml? How does StreamPark's LDAP login support work alongside its built-in user accounts? Explain the execution flow of submitting a Flink job through StreamPark Console? Explain the internal working of StreamPark's multi-version Flink support through custom classloading? How can you optimize resource utilization when running many Flink jobs on a shared YARN cluster through StreamPark? Explain the lifecycle of a StreamPark Application from creation to termination? How do you troubleshoot alert delivery throttling when many jobs fail simultaneously? What is the difference between StreamPark's DataStream extensions and the plain Flink DataStream API? Explain the internal working of StreamPark Core's RuntimeContext abstraction? How does StreamPark recover a Flink job from a savepoint after a Console restart? Why hasn't StreamPark standardized a built-in SMS alert channel? Explain the execution flow of a Kubernetes Application mode submission from StreamPark? How would you design team and queue isolation for a multi-department YARN cluster on StreamPark? Explain the difference between StreamPark's convention-over-configuration approach and manually configuring a Flink project? How does StreamPark's permission model prevent one team from accessing another team's alert configurations? Explain the execution flow of a Flink SQL job submitted through StreamPark's SQL editor?
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