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https://issues.apache.org/jira/browse/BROOKLYN-376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15622073#comment-15622073
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Geoff Macartney commented on BROOKLYN-376:
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An easy way to check for available entropy is by looking at
“/proc/sys/kernel/random/entropy_avail”
> Make Brooklyn complain if ulimits etc. are not as required
> ----------------------------------------------------------
>
> Key: BROOKLYN-376
> URL: https://issues.apache.org/jira/browse/BROOKLYN-376
> Project: Brooklyn
> Issue Type: Improvement
> Reporter: Geoff Macartney
> Priority: Minor
>
> The Brooklyn docs contain recommended settings for limits, entropy and other
> metrics it depends on, but it would be even better if Brooklyn itself checked
> the values on startup and complained loudly if they were not sufficient.
> At least a message in the logs would be valuable, or maybe even Brooklyn
> could refuse to start without some flag acknowledging the user's acceptance
> of the low limits.
> Additional possibilities would include:
> * Expose the limits and whether they are sufficient through API
> * Display this in the GUI
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