Re: [boost] Persistency library

Subject: Re: [boost] Persistency library
From: Lifshitz, Yair (yair.lifshitz_at_[hidden])
Date: 2011-09-25 16:18:54

From: Edward Diener <eldiener_at_[hidden]>

> On 9/24/2011 10:31 AM, Lifshitz, Yair wrote:
> > Hi,
> >
> > Object-based persistency/serialization libraries often require significant modifications to the code.
> > Would Boost consider adding a process-level checkpointing library to boost?

> Why not explain what you mean by a "process-level checkpointing library" 
> and then others can comment if they might find it useful ?

Process-level checkpointing is an approach where an entire process' memory image is dumped in binary format.
The checkpointing library does not require any understanding of the saved application - it works by traversing
the entire memory image and directly dumping that to disk.

On Linux for example, this can be done by traversing all memory segments described in /proc/self/maps.

This approach is highly robust, and generally considered good for very large applications where
serialization is a challenge.

Some examples can be seen here - http://checkpointing.org/ - though we had little luck with most of them when
starting to work on persistency (~6 years ago).

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