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ASF GitHub Bot commented on SAMZA-1075: --------------------------------------- Github user asfgit closed the pull request at: https://github.com/apache/samza/pull/57 > Refactor SystemAdmin Interface to expose a common method to create streams. > --------------------------------------------------------------------------- > > Key: SAMZA-1075 > URL: https://issues.apache.org/jira/browse/SAMZA-1075 > Project: Samza > Issue Type: Bug > Reporter: Jake Maes > Assignee: Jake Maes > > With samza-1041, we plan to automatically create intermediate streams for a > given graph. To do this, we need a generic way to create streams on all > supported systems. > We currently auto-create streams for checkpoints, coordinatorStream, and > changelogs, we do so using a fragmented set of interfaces and methods. e.g. > to create a checkpoint topic, the KafkaCheckpointMnager.start() creates the > topic using KafkaUtil directly, whereas for the coordinatorStream, we call > the SystemAdmin.createCoordinatorStream() method. The former is specific to a > particular System, but the latter is theoretically (but not actually) > implemented for every System. > Instead of using custom methods in differing levels of abstraction, we should > just expose one simple createStream() method in the SystemAdmin interface and > deprecate the old methods. The new createStream method will receive a > complete, system-specific blueprint/specification for the stream and use that > to create the actual stream. -- This message was sent by Atlassian JIRA (v6.3.15#6346)