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https://issues.apache.org/jira/browse/LUCENE-6614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14602835#comment-14602835
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Dawid Weiss commented on LUCENE-6614:
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> We need to get this method out of lucene.
This would be an ideal world. I mentioned it in one of my previous comments on
another issue -- the CMS should be agnostic to hardware and have the ability to
maximize throughput for the current system conditions rather than rely on
detection of spinning/ non-spinning drives, etc. Unfortunately I don't know how
to implement this.
In the mean time there is a problem that's unsolvable - if you have a custom
Directory (or a DirectoryFilter) that eventually reaches to disk then the CMS
will always come with defaults as if the disk was rotational. There are no
solutions to this other than cloning the merging strategy.
> IOUtils.spins doesn't work for drives NVMe drives
> -------------------------------------------------
>
> Key: LUCENE-6614
> URL: https://issues.apache.org/jira/browse/LUCENE-6614
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Michael McCandless
> Assignee: Uwe Schindler
> Priority: Minor
> Fix For: 5.3, Trunk
>
> Attachments: LUCENE-6614.patch
>
>
> NVMe is the faster (than AHCI) protocol for newer SSDs that plug into the
> PCIE bus.
> I just built a new beast box with one of these drives, and the partition is
> named {{/dev/nvme0n1p1}} while the device is {{/dev/nvme0n1}} by Linux - this
> also appears in /sys/block with rotational=0.
> I think [~steve_rowe] also has an NVME drive ...
> [~thetaphi] (who got the box working for me: thank you!!!) has ideas on how
> to fix it!
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