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Posted to issues@flink.apache.org by "Greg Hogan (JIRA)" <ji...@apache.org> on 2015/10/02 15:19:26 UTC

[jira] [Created] (FLINK-2810) Warn user if bc not installed

Greg Hogan created FLINK-2810:
---------------------------------

             Summary: Warn user if bc not installed
                 Key: FLINK-2810
                 URL: https://issues.apache.org/jira/browse/FLINK-2810
             Project: Flink
          Issue Type: Improvement
          Components: Command-line client
    Affects Versions: master
            Reporter: Greg Hogan
            Assignee: Greg Hogan
            Priority: Minor


taskmanager.sh will print the following message when starting the cluster if bc is not installed and off-heap memory is enabled and configured as a ratio. The script should first check that bc is installed and otherwise print a specific message.

{noformat}
[ERROR] Configured TaskManager managed memory fraction is not a valid value. Please set taskmanager.memory.fraction in flink-conf.yaml
{noformat}

An example of a distribution where bc is not installed by default are the Debian images for Google Compute Engine.



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