[jira] [Commented] (TS-1869) Multiple cache lines in storage.config are ignored.

["Alan M. Carroll (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TS-1869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13766589#comment-13766589 ] 

Alan M. Carroll commented on TS-1869:
-------------------------------------

The root is that the disk array in Store is really a two dimensional varying width array. Each Span instance in the array is also the head of an internally linked list. The Store initialization groups Span instances for the same physical device in to these lists but the cache initialization logic ignores the list. This works out for physical (raw) devices but for file storage units only one for each device is used. You can in fact have more than one file entry, it is that each entry must be on a different device or (roughly equivalent) under different mount points.

There are other issues that make this a bit tricky to fix. The investigation is ongoing.
                
> Multiple cache lines in storage.config are ignored.
> ---------------------------------------------------
>
>                 Key: TS-1869
>                 URL: https://issues.apache.org/jira/browse/TS-1869
>             Project: Traffic Server
>          Issue Type: Bug
>          Components: Cache
>            Reporter: Leif Hedstrom
>            Assignee: Alan M. Carroll
>              Labels: A
>             Fix For: 5.0.0
>
>
> Using on-filesystem cache entries, and adding more than one line simply has no effect, only the last one seems to be used. It works fine for "raw" devices though.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira