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Can't open lucene index (Java heap space)

I want to grab some data from lucene index file. But I can't read it.

I try to use Luke, but it always crashes with java.lang.OutOfMemoryError: J开发者_如何学Goava heap space. Note -Xmx can't help me. I try -Xmx512, -Xmx1024 and even -Xmx2048.

I try to use Solr also, but gets java.lang.OutOfMemoryError: Java heap space too.

Any ideas how I can extract some data from Lucene?

P. S. I use lucene 2.3.0. My index file is 1.8 Gb size.


What size is the data you are trying to fetch? Maybe the result set is too large to handle?


I create my own simple lucene client, based on org.apache.lucene.search.Searcher. And grab data that I want.

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