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Posted to dev@samza.apache.org by vjagadish <gi...@git.apache.org> on 2017/01/06 19:31:38 UTC

[GitHub] samza pull request #40: SAMZA-1077: Catch throwables in SamzaContainer

GitHub user vjagadish opened a pull request:

    https://github.com/apache/samza/pull/40

    SAMZA-1077: Catch throwables in SamzaContainer

    Here's the snippet from the startup sequence of the SamzaContainer.
    
    SamzaContainer.scala
    ```
          startProducers
          startTask
          startConsumers
          startSecurityManger
    
          info("Entering run loop.")
          addShutdownHook
          runLoop.run
        } catch {
          case e: Exception =>
            error("Caught exception in process loop.", e)
            throw e
        } finally {
          info("Shutting down.")
    
          shutdownConsumers
          shutdownTask
          shutdownStores
    ```
    In this case, the catch block should catch all Throwables instead of merely catching Exceptions. This will cause errors like `NoSuchMethodErrors` to be masked. Furthermore, the error can get lost completely if the finally block throws an exception during any of the shutdown calls.
    Catching all Throwables will prevent this.


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/vjagadish1989/samza samza-1077

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/samza/pull/40.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #40
    
----
commit 6ad9bd90a74331397c45c91d20583e8a0a8b27cb
Author: vjagadish1989 <jv...@linkedin.com>
Date:   2017-01-06T19:27:26Z

    SAMZA-1077: Catch throwables in SamzaContainer

----


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[GitHub] samza pull request #40: SAMZA-1077: Catch throwables in SamzaContainer

Posted by vjagadish <gi...@git.apache.org>.
Github user vjagadish closed the pull request at:

    https://github.com/apache/samza/pull/40


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