int vs long and document ids on 64bit machines.

Thu, 11 Mar 2004 02:53:46 -0800

A discussion I had a while back had someone note (Doug?) that the decision to go with 32bit ints for document IDs was that on 32 bit machines that 64bits weren't threadsafe.

Does anyone know how JDK 1.4.2 works on Itanium, Opteron (AMD64)?

How hard would it be to build a lucene64 that used 64bit document handles (longs) for 64bit procesors?! Is it just a recompile? Will the file format break and need updating?!

Also ... what are the symptoms of a Lucene build using 64bit ints on 32bit processors. Right now we're personally stuck on 32bit machines but I would like to see us migrate to 64 bit boxes over the next 6 months...

Anyway... thinking out loud.

Kevin

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