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From "Greg Hogan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2810) Warn user if bc not installed
Date Fri, 02 Oct 2015 14:09:26 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2810?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14941172#comment-14941172

Greg Hogan commented on FLINK-2810:

Bash arithmetic evaluation is limited to integers.

> 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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