nwangtw opened a new issue #3334: Add config file support URL: https://github.com/apache/incubator-heron/issues/3334 Currently, all the configs are hard-coded. A Config object is created and then used to submit the topology. A big problem is that when there is any config change, such as increase ram size for container or a specific component, the whole application needs to be rebuilt. Ideally config should be decoupled from logic. To do it, Config object should be constructible from a config file so that topology writer can separate the work of implementing the logic and configuring the topology. Furthermore, config changes are managed totally separately. Any other thoughts are welcome.
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