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https://issues.apache.org/jira/browse/CASSANDRA-13067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15876560#comment-15876560
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Matt Wringe commented on CASSANDRA-13067:
-----------------------------------------
I attached a patch to this issue which resolves this issue for me. What is the
best way to contribute to the Cassandra project? Just attach the patch to the
bugzilla? mailing list? PRs for your mirrored github account?
> 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
> 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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