IGFS Secondary Filesystem Query Cached Blocks

[faizshah <fa...@umd.edu>]

Hi,

Is it possible to query IGFS to see what blocks are in cache? 

Additionally, how does IGFS check whether data in the secondary file system
has changed, for example if data is appended to the final block or a file is
deleted?

Thanks,
Faiz



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Re: IGFS Secondary Filesystem Query Cached Blocks

[Jörn Franke <jo...@gmail.com>]

Since all requests go through IGFS it is noticed. I am not aware of any situation where you can circumvent it , if configured correctly

> On 28 Sep 2016, at 20:53, faizshah <fa...@umd.edu> wrote:
> 
> Hi,
> 
> Is it possible to query IGFS to see what blocks are in cache? 
> 
> Additionally, how does IGFS check whether data in the secondary file system
> has changed, for example if data is appended to the final block or a file is
> deleted?
> 
> Thanks,
> Faiz
> 
> 
> 
> --
> View this message in context: http://apache-ignite-users.70518.x6.nabble.com/IGFS-Secondary-Filesystem-Query-Cached-Blocks-tp7989.html
> Sent from the Apache Ignite Users mailing list archive at Nabble.com.

Re: IGFS Secondary Filesystem Query Cached Blocks

[vkulichenko <va...@gmail.com>]

You should update the secondary file system through IGFS. This way primary
and secondary file systems will be always consistent.

-Val



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