[jira] [Commented] (TS-745) Support ssd

["Leif Hedstrom (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TS-745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13662299#comment-13662299 ] 

Leif Hedstrom commented on TS-745:
----------------------------------

One more question: This feature, if I understand it, changes the cache and directory structure fairly substantially. Presumably this invalidates the cache at a minimum, and potentially (long term) limits how people use the cache (e.g. max volume sizes etc.). 

Would it be possible / reasonable to make it such that unless there is a "tiered" cache layout/setup, the cache (and dirents) stay compatible with what we have now? This would make transition, and refinements, of this feature much less intrusive. Someone who doesn't enable it, won't notice anything, and the cache would just continue to work as it was (without losing any data).

Thoughts?

                
> Support ssd
> -----------
>
>                 Key: TS-745
>                 URL: https://issues.apache.org/jira/browse/TS-745
>             Project: Traffic Server
>          Issue Type: New Feature
>          Components: Cache
>            Reporter: mohan_zl
>            Assignee: weijin
>             Fix For: 3.3.5
>
>         Attachments: 0001-TS-745-support-interim-caching-in-storage.patch, ts-745.diff, TS-ssd-2.patch, TS-ssd.patch
>
>
> A patch for supporting, not work well for a long time with --enable-debug

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