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https://issues.apache.org/jira/browse/ARTEMIS-872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16370955#comment-16370955
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ASF GitHub Bot commented on ARTEMIS-872:
----------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/activemq-artemis/pull/1878


> On extremely large volumes, Artemis falsely reports "Storage usage is beyond 
> max-disk-usage"
> --------------------------------------------------------------------------------------------
>
>                 Key: ARTEMIS-872
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-872
>             Project: ActiveMQ Artemis
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 1.5.0
>            Reporter: Laurent Gauthier
>            Assignee: Justin Bertram
>            Priority: Major
>
> On Amazon EFS (Elastic File System) Java 8 reports the following for 
> UsableSpace and TotalSpace:
> usable=9,223,372,036,635,623,424
> total=   -9,223,372,036,854,775,808
> As one can see, the totalSpace is negative! We are past the Long.MAX_VALUE. 
> This results in 
> org.apache.activemq.artemis.core.server.files.FileStoreMonitor reporting an 
> error of type "Storage usage is beyond max-disk-usage" since it computes 
> usage (in method calculateUsage(FileStore store)) as:
> 1.0 - (double) store.getUsableSpace() / (double) store.getTotalSpace();
> so that "usage > maxUsage" resolves to True (maxUsage = 0.999 by default).
> This problem was already reported and discussed for ActiveMQ 5.x (see 
> External Issue URL) and a proposed fix was to use the following logic:
> if (totalSpace < 0) {
>       totalSpace = Long.MAX_VALUE;
>       } 
> The other proposal is to support a flag that would disable the usage check 
> altogether.



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