Quick poll: Anyone using ext4? Have you run into any issues?

[Lowell]

I'm planning on migrating Splunk instance to new hardware and will be upgrading the OS at the same time, and I'd like to move to "ext4" due to the extent-based file allocation, online fragmentation capabilities, and so on.

There's been a couple questions about ext4 on this site and per splunk support there is still no official "ext4" support yet as of Splunk 4.2.3, so I figured I'd see if anyone in the community has any experience on this.

If you're using ext4 I'd love to know about it.

Please include the following: (Additional details welcomed)

• Linux distro:
• Kernel version:
• Splunk version:
• Comments: (Works well / has problems / is it notably faster or slower?)

[mdonnelly_splun]

For those who stumble across this query - the list of supported file systems now includes EXT4.

The complete list of supported file systems is found here:

http://docs.splunk.com/Documentation/Splunk/latest/Installation/Systemrequirements

[dwaddle]

Lowell, I run ext4 on my 4.2.1 test instance on Ubuntu lucid. But, being it's strictly used for app development and config shakeouts I can't give any positive or negative comments on performance. In terms of basic functionality, Splunk seems to run just fine.

[timothy_e_rabor]

I'm in the same boat as you and was hoping to see an answer here. I'm moving forward and hope I don't have to downgrade. Maybe I'll have some results to post in the next few days.