[Zope] Zope Scalability

Jens Vagelpohl jens at dataflake.org
Wed Oct 5 16:01:53 EDT 2005


On 5 Oct 2005, at 20:57, Tim Peters wrote:

> [Jens Vagelpohl]
>
>> Well, the question was actually "What is the maximum size of this
>> file and/or maximum object ID? => just how many objects can the zodb
>> hold?". There is only a theoretical limit that has to do with the
>> largest index key for the ZODB index I believe, and that is some
>> ludicrously high number that no one has ever reached.
>>
>
> If you're using FileStorage, a technical detail in the implementation
> of the FileStorage index limits the maximum file offset that can be
> used to 2**48-1, or about 281 terabytes.  Object IDs are effectively
> 64-bit integers (masquerading as 8-byte strings).

If that's not falling in the "ludicrous" category, I don't know what  
is ;)  I suppose we'll all be safe for a while.

jens



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