Shanthoosh Venkataraman created SAMZA-2168:
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Summary: Remove redundant SystemAdmin creation in ApplicationMaster
Key: SAMZA-2168
URL: https://issues.apache.org/jira/browse/SAMZA-2168
Project: Samza
Issue Type: Improvement
Reporter: Shanthoosh Venkataraman
Assignee: Shanthoosh Venkataraman
Samza ApplicationMaster is a process responsible for scheduling, orchestrating
and managing the lifecycle of containers of a samza job.
SystemAdmin abstraction is used in samza to validate, create and fetch the
metadata of input and metadata streams of the samza job. Creating a SystemAdmin
instance for a system is an expensive operation which entails creating the
connection with the broker and setting up resources.
Currently, SystemAdmin for a system is created multiple times across the
different components of the samza ApplicationMaster. This duplicate SystemAdmin
creation happens as a part of the startup sequence of ApplicationMaster and
unnecessarily increases the startup time of ApplicationMaster.
Ideally, the SystemAdmin for a system should be created once and shared by all
the components of the ApplicationMaster. This ticket tracks the work involved
in fixing this behavior.
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