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https://issues.apache.org/jira/browse/LUCENE-5951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14251676#comment-14251676
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Robert Muir commented on LUCENE-5951:
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Then those are bugs in the linux kernel. its not our problem.
the worst that happens, is you get the same behavior as today. People seem to
have difficulty understanding this.
> Detect when index is on SSD and set dynamic defaults
> ----------------------------------------------------
>
> Key: LUCENE-5951
> URL: https://issues.apache.org/jira/browse/LUCENE-5951
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Attachments: LUCENE-5951.patch, LUCENE-5951.patch, LUCENE-5951.patch,
> LUCENE-5951.patch, LUCENE-5951.patch, LUCENE-5951.patch
>
>
> E.g. ConcurrentMergeScheduler should default maxMergeThreads to 3 if it's on
> SSD and 1 if it's on spinning disks.
> I think the new NIO2 APIs can let us figure out which device we are mounted
> on, and from there maybe we can do os-specific stuff e.g. look at
> /sys/block/dev/queue/rotational to see if it's spinning storage or not ...
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