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https://issues.apache.org/jira/browse/TS-3541?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14587273#comment-14587273
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ASF subversion and git services commented on TS-3541:
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Commit 4a24228cc7bc4823bd28e5e3ef59c9360aed75b1 in trafficserver's branch
refs/heads/master from [~zwoop]
[ https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;h=4a24228 ]
Add TS-3541
> Eliminate interim cache
> -----------------------
>
> Key: TS-3541
> URL: https://issues.apache.org/jira/browse/TS-3541
> Project: Traffic Server
> Issue Type: Improvement
> Components: Cache
> Reporter: Leif Hedstrom
> Assignee: Leif Hedstrom
> Labels: compatibility
> Fix For: 6.0.0
>
>
> This feature is poorly supported, and causes grief for cache development due
> to how it #ifdef’s with the system. There are plans for a new system that
> would make the concept of cache hierarchies generic. In the mean time, the
> suggestion is that if you need this, you use one of
> 1) Assigning content to volumes and disks via our existing configs.
> 2) Use Linux’s bcache feature, which comes with Linux 3.10 or later. I
> suspect e.g. ZFS has something similar.
> 3) Use a third party system to implement the hybrid device (e.g. flash
> cache or EnhanceIO.
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