Jagadish created SAMZA-1634:
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Summary: Update javadocs for SystemConsumer implementors
Key: SAMZA-1634
URL: https://issues.apache.org/jira/browse/SAMZA-1634
Project: Samza
Issue Type: Bug
Reporter: Jagadish
Should update javadocs so that we are clear in our message to those who
implement SystemConsumers:
In general, SystemConsumer instances are shared across all tasks and there's
one instance of SystemConsumer created per-"system". While we guarantee that
there will be no concurrent commits for the same task instance, no such
guarantees are made across task instances.
It's expected for SystemConsumer implementations to be thread-safe and safely
handle the following scenarios :
* poll on a task invoked concurrently with a commit on another task
* commits on different tasks invoked concurrently
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