Re: [Help-gnunet] WARNING: server could not perform insertion

[Christian Grothoff]

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On Saturday 17 August 2002 11:11 am, David Hansen wrote:
> Hi,
>
> any ideas what the problem could be?

Yes. Every node has a (compile-time) limit on how much data can be shared 
(theoretically, we could grow this limit dynamically, but that would be a 
fairly costly operation). The limit is specified in src/include/config.h 
under CACHE_HASH_TABLE_SIZE. It specifies the size of the hashtable.
If you change this value, you must run "gnunet-check -a" which will probably 
take a *long, long time* at that point...

The hashtable implementation can handle collisions, but only up to a certain 
point. When the implementation can no longer handle the collisions (which 
means that the table is close to full [yes, I know the birthday paradox, but 
as I said, there is some collision handling]), then the server tells the 
insertion process that it could not store the additional data. 

How many GB have you inserted? 

Christian

> [...]
> 610362368 of 629690368 bytes inserted
> 610363392 of 629690368 bytes inserted
> 610364416 of 629690368 bytes inserted
> 610365440 of 629690368 bytes inserted
> WARNING: server could not perform insertion
> 610366464 of 629690368 bytes inserted
> 610367488 of 629690368 bytes inserted
> 610368512 of 629690368 bytes inserted
> 610369536 of 629690368 bytes inserted
> [...]
>
> David
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