Kevin A. Burton wrote:
Is this setting incompatible with older indexes burned with the lower value?

Prior to 1.4, yes. After 1.4, no.

What happens after 1.4? Can I take indexes burned with 256 (a greater value) in 1.3 and open them up correctly with 1.4?

Not without hacking things. If your 1.3 indexes were generated with 256 then you can modify your version of Lucene 1.4+ to use 256 instead of 128 when reading a Lucene 1.3 format index (SegmentTermEnum.java:54 today).


Prior to 1.4 this was a constant, hardwired into the index format. In 1.4 and later each index segment stores this value as a parameter. So once 1.4 has re-written your index you'll no longer need a modified version.

Doug

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