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https://issues.apache.org/jira/browse/CASSANDRA-3710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13194343#comment-13194343
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Christian Spriegel commented on CASSANDRA-3710:
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Update on my testsuite: I was just able to get jna running in my junits,
therefore truncate is finally working, which is good.
Unfortunetaly the performance of my testsuite is not good any more. It now took
25 minutes instead of 3 minutes to run all my tests. The hard disk was busy all
the time (top showed ~10% io wait).
I checked for snapshots in the cassandra directory: There were about 2300
folders within the snapshots directory. Within these were ~30k files in all
those directories. I assume that the performance decrease is due to the 30k
symlinks being created.
> Add a configuration option to disable snapshots
> -----------------------------------------------
>
> Key: CASSANDRA-3710
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3710
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Brandon Williams
> Fix For: 1.0.8
>
>
> Let me first say, I hate this idea. It gives cassandra the ability to
> permanently delete data at a large scale without any means of recovery.
> However, I've seen this requested multiple times, and it is in fact useful in
> some scenarios, such as when your application is using an embedded cassandra
> instance for testing and need to truncate, which without JNA will timeout
> more often than not.
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