[jira] [Created] (QUICKSTEP-8) Long running Foreman thread

["Harshad Deshmukh (JIRA)" <ji...@apache.org>]

Harshad Deshmukh created QUICKSTEP-8:
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             Summary: Long running Foreman thread
                 Key: QUICKSTEP-8
                 URL: https://issues.apache.org/jira/browse/QUICKSTEP-8
             Project: Apache Quickstep
          Issue Type: New Feature
          Components: Query Execution
            Reporter: Harshad Deshmukh
            Assignee: Harshad Deshmukh


Right now the Foreman thread is instantiated for every new query. We would like to have a long running Foreman thread which can accept queries as and when they arrive in the system. To achieve this following changes are necessary:

1. Communication between the main thread and Foreman should happen through TMB.
2. New message types should be defined for the above communication (e.g. query arrival, query completion)
3. Mechanisms for wait-listing queries which can't be admitted to the system immediately.



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