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https://issues.apache.org/jira/browse/CASSANDRA-13067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15946007#comment-15946007
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Jeff Jirsa commented on CASSANDRA-13067:
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I've assigned it to you, since you wrote the patch. Ultimately we need to
review it and run it through unit and distributed tests - I suspect the delay
is that few reviewers/committers have an account with EFS handy to test.
> Integer overflows with file system size reported by Amazon Elastic File
> System (EFS)
> ------------------------------------------------------------------------------------
>
> Key: CASSANDRA-13067
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13067
> Project: Cassandra
> Issue Type: Bug
> Environment: Cassandra in OpenShift running on Amazon EC2 instance
> with EFS mounted for data
> Reporter: Michael Hanselmann
> Assignee: Matt Wringe
> Attachments: 0001-Handle-exabyte-sized-filesystems.patch
>
>
> When not explicitly configured Cassandra uses
> [{{nio.FileStore.getTotalSpace}}|https://docs.oracle.com/javase/7/docs/api/java/nio/file/FileStore.html]
> to determine the total amount of available space in order to [calculate the
> preferred commit log
> size|https://github.com/apache/cassandra/blob/cassandra-3.9/src/java/org/apache/cassandra/config/DatabaseDescriptor.java#L553].
> [Amazon EFS|https://aws.amazon.com/efs/] instances report a filesystem size
> of 8 EiB when empty. [{{getTotalSpace}} causes an integer overflow
> (JDK-8162520)|https://bugs.openjdk.java.net/browse/JDK-8162520] and returns a
> negative number, resulting in a negative preferred size and causing the
> checked integer to throw.
> Overriding {{commitlog_total_space_in_mb}} is not sufficient as
> [{{DataDirectory.getAvailableSpace}}|https://github.com/apache/cassandra/blob/cassandra-3.9/src/java/org/apache/cassandra/db/Directories.java#L550]
> makes use of {{nio.FileStore.getUsableSpace}}.
> [AMQ-6441] is a comparable issue in ActiveMQ.
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