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Reduce FST block size for BlockTreeTermsWriter #12604

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merged 6 commits into from
Oct 4, 2023
Merged

Reduce FST block size for BlockTreeTermsWriter #12604

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edfd968
reduce fst block size
gf2121 Sep 28, 2023
43e67cc
add CHANGES
gf2121 Sep 28, 2023
521d693
fix
gf2121 Sep 28, 2023
1eb6a99
estimate bit
gf2121 Oct 3, 2023
a4a4964
update changes
gf2121 Oct 3, 2023
21b6858
fix change
gf2121 Oct 4, 2023
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2 changes: 2 additions & 0 deletions lucene/CHANGES.txt
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Expand Up @@ -163,6 +163,8 @@ Optimizations
* GITHUB#12382: Faster top-level conjunctions on term queries when sorting by
descending score. (Adrien Grand)

* GITHUB#12604: Reduce block size of FST BytesStore in BlockTreeTermsWriter. (Guo Feng)
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Could you add some words that the end user could understand -- maybe reducing GC load during indexing or so?


Changes in runtime behavior
---------------------

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1 change: 1 addition & 0 deletions ...re/src/java/org/apache/lucene/codecs/lucene90/blocktree/Lucene90BlockTreeTermsWriter.java
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Expand Up @@ -494,6 +494,7 @@ public void compileIndex(
final FSTCompiler<BytesRef> fstCompiler =
new FSTCompiler.Builder<>(FST.INPUT_TYPE.BYTE1, outputs)
.shouldShareNonSingletonNodes(false)
.bytesPageBits(10)
.build();
// if (DEBUG) {
// System.out.println(" compile index for prefix=" + prefix);
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