[erlang-questions] Persistent tree datastructure

chan sisowath <>
Mon Aug 19 14:52:32 CEST 2013


my work was based on the work of Dukes Of Erl,

Dukes of Erl: Tokyocabinet and
*Mnesia*<http://www.google.com.hk/url?sa=t&rct=j&q=tokyo+tyrant+mnesia&source=web&cd=2&ved=0CDcQFjAB&url=%68%74%74%70%3a%2f%2f%64%75%6b%65%73%6f%66%65%72%6c%2e%62%6c%6f%67%73%70%6f%74%2e%63%6f%6d%2f%32%30%30%38%2f%30%36%2f%74%6f%6b%79%6f%63%61%62%69%6e%65%74%2d%61%6e%64%2d%6d%6e%65%73%69%61%2e%68%74%6d%6c&ei=OBISUvalLKSpiAeS3IHwCQ&usg=AFQjCNG25ZZ-0nOnvYMx7qF3MjC6UrP2nQ>

google it, here from china it s hard to provide the link, since his blog is
on blogspot

tree structure in SQL (MySql) is a bad idea to go at large scale,

HDD + VFS is one of the oldest database i know. :).

performance are not bad you should test it for your need.

the PoC is quite easy to do, all the work was done by Dukes Of Erl.

cheers.
Chan





2013/8/19 Janos Hary <>

> This is interesting. Would it be a custom mnesia_access callback module?
> Or what does the ‘custom backend’ exactly mean?****
>
> Can you point me to some documentation or example?****
>
> ** **
>
> Thanks,****
>
> Janos****
>
> ** **
>
> *From:* chan sisowath [mailto:]
> *Sent:* Monday, August 19, 2013 9:25 AM
> *To:* Janos Hary
> *Cc:* erlang-questions
> *Subject:* Re: [erlang-questions] Persistent tree datastructure****
>
> ** **
>
> i face this problem once,****
>
> and i use mnesia with a custom backend to store the tree structure.****
>
> the custom backend is a simple interface to the filesystem.****
>
> ** **
>
> 2013/8/17 Janos Hary <>****
>
> Hi,****
>
>  ****
>
> Is there any Erlang library or method to handle trees persistently with
> ACID properties? ****
>
> I’m looking for something to handle filesystem like data with 1-100million
> records and varying nesting levels.****
>
>  ****
>
> Thanks in advance,****
>
> Janos****
>
>
> _______________________________________________
> erlang-questions mailing list
> 
> http://erlang.org/mailman/listinfo/erlang-questions****
>
> ** **
>
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