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From "Ivan Veselovsky (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-2812) IGFS: Some operations on DUAL file system could be passed directly to secondary file system.
Date Mon, 14 Mar 2016 08:48:33 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-2812?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ivan Veselovsky updated IGNITE-2812:
------------------------------------
    Summary: IGFS: Some operations on DUAL file system could be passed directly to secondary
file system.  (was: IGFS: Some operations on DUAL file system could be passed directly to
secondary fiel system.)

> IGFS: Some operations on DUAL file system could be passed directly to secondary file
system.
> --------------------------------------------------------------------------------------------
>
>                 Key: IGNITE-2812
>                 URL: https://issues.apache.org/jira/browse/IGNITE-2812
>             Project: Ignite
>          Issue Type: Task
>          Components: IGFS
>    Affects Versions: 1.5.0.final
>            Reporter: Vladimir Ozerov
>             Fix For: 1.7
>
>
> *Problem*
> When working in DUAL mode, some operations delegate to secondary file system even if
all necessary information is already in IGFS. Example: "list paths" operation. It has to consult
to secondary file system because we are not sure that all existing entries exists in meta
cache. As such, we always delegate to secondary file system.
> *Proposed solution*
> Probably we can route such operations directly to seconday FS without involving IGFS.
This will save us several network trips.



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