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Update codec version to 9.5 (#747)
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* Update lucene94 package

Signed-off-by: Naveen Tatikonda <[email protected]>

* Add Lucene 9.5 codec and make it new default (#700)

* Add Lucene 9.5 codec and make it new default

Signed-off-by: Martin Gaievski <[email protected]>

* Update tests for backwards codecs (#710)

Updates tests for backwards codecs to prevent backwards codecs from
writing with a read only codec.

Signed-off-by: John Mazanec <[email protected]>

---------

Signed-off-by: Naveen Tatikonda <[email protected]>
Signed-off-by: Martin Gaievski <[email protected]>
Signed-off-by: John Mazanec <[email protected]>
Co-authored-by: Martin Gaievski <[email protected]>
Co-authored-by: John Mazanec <[email protected]>
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3 people authored Feb 3, 2023
1 parent cedd5ec commit 2a40da4
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4 changes: 3 additions & 1 deletion DEVELOPER_GUIDE.md
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Expand Up @@ -286,10 +286,12 @@ Before adding any new tests to Backward Compatibility Tests, we should be aware

Starting from 2.0 release the new versioning for codec has been introduced. Two positions will be used to define the version,
in format 'X.Y', where 'X' corresponds to underlying version of Lucene and 'Y' is the version of the format.
Please note that Lucene version along with corresponding Lucene codec is part of the core OpenSearch. KNN codec should be in sync with Lucene codec version from core OpenSearch.

Codec version is used in following classes and methods:
- org.opensearch.knn.index.codec.KNNXYCodec.KNNXYCodec
- org.opensearch.knn.index.codec.KNNFormatFactory.createKNNXYFormat
- org.opensearch.knn.index.codec.KNNXYCodec.KNNXYPerFieldKnnVectorsFormat
- org.opensearch.knn.index.codec.KNNCodecVersion

These classes and methods are tied directly to Lucene version represented by 'X' part.
Other classes use the delegate pattern so no direct tie to Lucene version are related to format and represented by 'Y'
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Expand Up @@ -5,7 +5,7 @@

package org.opensearch.knn.index.codec.KNN940Codec;

import org.apache.lucene.codecs.lucene94.Lucene94HnswVectorsFormat;
import org.apache.lucene.backward_codecs.lucene94.Lucene94HnswVectorsFormat;
import org.opensearch.index.mapper.MapperService;
import org.opensearch.knn.index.codec.BasePerFieldKnnVectorsFormat;

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@@ -0,0 +1,58 @@
/*
* Copyright OpenSearch Contributors
* SPDX-License-Identifier: Apache-2.0
*/

package org.opensearch.knn.index.codec.KNN950Codec;

import lombok.Builder;
import org.apache.lucene.codecs.Codec;
import org.apache.lucene.codecs.CompoundFormat;
import org.apache.lucene.codecs.DocValuesFormat;
import org.apache.lucene.codecs.FilterCodec;
import org.apache.lucene.codecs.KnnVectorsFormat;
import org.apache.lucene.codecs.perfield.PerFieldKnnVectorsFormat;
import org.opensearch.knn.index.codec.KNNCodecVersion;
import org.opensearch.knn.index.codec.KNNFormatFacade;

public class KNN950Codec extends FilterCodec {
private static final KNNCodecVersion VERSION = KNNCodecVersion.V_9_5_0;
private final KNNFormatFacade knnFormatFacade;
private final PerFieldKnnVectorsFormat perFieldKnnVectorsFormat;

/**
* No arg constructor that uses Lucene95 as the delegate
*/
public KNN950Codec() {
this(VERSION.getDefaultCodecDelegate(), VERSION.getPerFieldKnnVectorsFormat());
}

/**
* Sole constructor. When subclassing this codec, create a no-arg ctor and pass the delegate codec
* and a unique name to this ctor.
*
* @param delegate codec that will perform all operations this codec does not override
* @param knnVectorsFormat per field format for KnnVector
*/
@Builder
protected KNN950Codec(Codec delegate, PerFieldKnnVectorsFormat knnVectorsFormat) {
super(VERSION.getCodecName(), delegate);
knnFormatFacade = VERSION.getKnnFormatFacadeSupplier().apply(delegate);
perFieldKnnVectorsFormat = knnVectorsFormat;
}

@Override
public DocValuesFormat docValuesFormat() {
return knnFormatFacade.docValuesFormat();
}

@Override
public CompoundFormat compoundFormat() {
return knnFormatFacade.compoundFormat();
}

@Override
public KnnVectorsFormat knnVectorsFormat() {
return perFieldKnnVectorsFormat;
}
}
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@@ -0,0 +1,28 @@
/*
* Copyright OpenSearch Contributors
* SPDX-License-Identifier: Apache-2.0
*/

package org.opensearch.knn.index.codec.KNN950Codec;

import org.apache.lucene.codecs.lucene95.Lucene95HnswVectorsFormat;
import org.opensearch.index.mapper.MapperService;
import org.opensearch.knn.index.codec.BasePerFieldKnnVectorsFormat;

import java.util.Optional;

/**
* Class provides per field format implementation for Lucene Knn vector type
*/
public class KNN950PerFieldKnnVectorsFormat extends BasePerFieldKnnVectorsFormat {

public KNN950PerFieldKnnVectorsFormat(final Optional<MapperService> mapperService) {
super(
mapperService,
Lucene95HnswVectorsFormat.DEFAULT_MAX_CONN,
Lucene95HnswVectorsFormat.DEFAULT_BEAM_WIDTH,
() -> new Lucene95HnswVectorsFormat(),
(maxConnm, beamWidth) -> new Lucene95HnswVectorsFormat(maxConnm, beamWidth)
);
}
}
22 changes: 20 additions & 2 deletions src/main/java/org/opensearch/knn/index/codec/KNNCodecVersion.java
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Expand Up @@ -10,7 +10,8 @@
import org.apache.lucene.backward_codecs.lucene91.Lucene91Codec;
import org.apache.lucene.backward_codecs.lucene92.Lucene92Codec;
import org.apache.lucene.codecs.Codec;
import org.apache.lucene.codecs.lucene94.Lucene94Codec;
import org.apache.lucene.backward_codecs.lucene94.Lucene94Codec;
import org.apache.lucene.codecs.lucene95.Lucene95Codec;
import org.apache.lucene.codecs.perfield.PerFieldKnnVectorsFormat;
import org.opensearch.index.mapper.MapperService;
import org.opensearch.knn.index.codec.KNN80Codec.KNN80CompoundFormat;
Expand All @@ -20,6 +21,8 @@
import org.opensearch.knn.index.codec.KNN920Codec.KNN920PerFieldKnnVectorsFormat;
import org.opensearch.knn.index.codec.KNN940Codec.KNN940Codec;
import org.opensearch.knn.index.codec.KNN940Codec.KNN940PerFieldKnnVectorsFormat;
import org.opensearch.knn.index.codec.KNN950Codec.KNN950Codec;
import org.opensearch.knn.index.codec.KNN950Codec.KNN950PerFieldKnnVectorsFormat;

import java.util.Optional;
import java.util.function.BiFunction;
Expand Down Expand Up @@ -74,9 +77,24 @@ public enum KNNCodecVersion {
.knnVectorsFormat(new KNN940PerFieldKnnVectorsFormat(Optional.ofNullable(mapperService)))
.build(),
KNN940Codec::new
),

V_9_5_0(
"KNN950Codec",
new Lucene95Codec(),
new KNN950PerFieldKnnVectorsFormat(Optional.empty()),
(delegate) -> new KNNFormatFacade(
new KNN80DocValuesFormat(delegate.docValuesFormat()),
new KNN80CompoundFormat(delegate.compoundFormat())
),
(userCodec, mapperService) -> KNN950Codec.builder()
.delegate(userCodec)
.knnVectorsFormat(new KNN950PerFieldKnnVectorsFormat(Optional.ofNullable(mapperService)))
.build(),
KNN950Codec::new
);

private static final KNNCodecVersion CURRENT = V_9_4_0;
private static final KNNCodecVersion CURRENT = V_9_5_0;

private final String codecName;
private final Codec defaultCodecDelegate;
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Expand Up @@ -4,4 +4,5 @@ org.opensearch.knn.index.codec.KNN86Codec.KNN86Codec
org.opensearch.knn.index.codec.KNN87Codec.KNN87Codec
org.opensearch.knn.index.codec.KNN910Codec.KNN910Codec
org.opensearch.knn.index.codec.KNN920Codec.KNN920Codec
org.opensearch.knn.index.codec.KNN940Codec.KNN940Codec
org.opensearch.knn.index.codec.KNN940Codec.KNN940Codec
org.opensearch.knn.index.codec.KNN950Codec.KNN950Codec
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Expand Up @@ -6,13 +6,9 @@
package org.opensearch.knn.index.codec.KNN940Codec;

import org.apache.lucene.codecs.Codec;
import org.apache.lucene.codecs.perfield.PerFieldKnnVectorsFormat;
import org.opensearch.index.mapper.MapperService;
import org.opensearch.knn.index.codec.KNNCodecTestCase;
import java.io.IOException;
import java.util.Optional;
import java.util.concurrent.ExecutionException;
import java.util.function.Function;

import static org.opensearch.knn.index.codec.KNNCodecVersion.V_9_4_0;

Expand All @@ -26,15 +22,9 @@ public void testBuildFromModelTemplate() throws InterruptedException, ExecutionE
testBuildFromModelTemplate((KNN940Codec.builder().delegate(V_9_4_0.getDefaultCodecDelegate()).build()));
}

public void testKnnVectorIndex() throws Exception {
Function<MapperService, PerFieldKnnVectorsFormat> perFieldKnnVectorsFormatProvider = (
mapperService) -> new KNN940PerFieldKnnVectorsFormat(Optional.of(mapperService));

Function<PerFieldKnnVectorsFormat, Codec> knnCodecProvider = (knnVectorFormat) -> KNN940Codec.builder()
.delegate(V_9_4_0.getDefaultCodecDelegate())
.knnVectorsFormat(knnVectorFormat)
.build();

testKnnVectorIndex(knnCodecProvider, perFieldKnnVectorsFormatProvider);
// Ensure that the codec is able to return the correct per field knn vectors format for codec
public void testCodecSetsCustomPerFieldKnnVectorsFormat() {
final Codec codec = new KNN940Codec();
assertTrue(codec.knnVectorsFormat() instanceof KNN940PerFieldKnnVectorsFormat);
}
}
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@@ -0,0 +1,51 @@
/*
* Copyright OpenSearch Contributors
* SPDX-License-Identifier: Apache-2.0
*/

package org.opensearch.knn.index.codec.KNN950Codec;

import lombok.SneakyThrows;
import org.apache.lucene.codecs.Codec;
import org.apache.lucene.codecs.perfield.PerFieldKnnVectorsFormat;
import org.opensearch.index.mapper.MapperService;
import org.opensearch.knn.index.codec.KNNCodecTestCase;

import java.util.Optional;
import java.util.function.Function;

import static org.opensearch.knn.index.codec.KNNCodecVersion.V_9_5_0;

public class KNN950CodecTests extends KNNCodecTestCase {

@SneakyThrows
public void testMultiFieldsKnnIndex() {
testMultiFieldsKnnIndex(KNN950Codec.builder().delegate(V_9_5_0.getDefaultCodecDelegate()).build());
}

@SneakyThrows
public void testBuildFromModelTemplate() {
testBuildFromModelTemplate((KNN950Codec.builder().delegate(V_9_5_0.getDefaultCodecDelegate()).build()));
}

// Ensure that the codec is able to return the correct per field knn vectors format for codec
public void testCodecSetsCustomPerFieldKnnVectorsFormat() {
final Codec codec = new KNN950Codec();
assertTrue(codec.knnVectorsFormat() instanceof KNN950PerFieldKnnVectorsFormat);
}

// IMPORTANT: When this Codec is moved to a backwards Codec, this test needs to be removed, because it attempts to
// write with a read only codec, which will fail
@SneakyThrows
public void testKnnVectorIndex() {
Function<MapperService, PerFieldKnnVectorsFormat> perFieldKnnVectorsFormatProvider = (
mapperService) -> new KNN950PerFieldKnnVectorsFormat(Optional.of(mapperService));

Function<PerFieldKnnVectorsFormat, Codec> knnCodecProvider = (knnVectorFormat) -> KNN950Codec.builder()
.delegate(V_9_5_0.getDefaultCodecDelegate())
.knnVectorsFormat(knnVectorFormat)
.build();

testKnnVectorIndex(knnCodecProvider, perFieldKnnVectorsFormatProvider);
}
}
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Expand Up @@ -8,12 +8,14 @@
import org.apache.lucene.backward_codecs.lucene92.Lucene92Codec;
import org.apache.lucene.codecs.Codec;
import org.apache.lucene.backward_codecs.lucene91.Lucene91Codec;
import org.apache.lucene.codecs.lucene94.Lucene94Codec;
import org.apache.lucene.backward_codecs.lucene94.Lucene94Codec;
import org.apache.lucene.codecs.lucene95.Lucene95Codec;
import org.opensearch.knn.KNNTestCase;

import static org.opensearch.knn.index.codec.KNNCodecVersion.V_9_1_0;
import static org.opensearch.knn.index.codec.KNNCodecVersion.V_9_2_0;
import static org.opensearch.knn.index.codec.KNNCodecVersion.V_9_4_0;
import static org.opensearch.knn.index.codec.KNNCodecVersion.V_9_5_0;

public class KNNCodecFactoryTests extends KNNTestCase {

Expand All @@ -35,6 +37,12 @@ public void testKNN940Codec() {
assertNotNull(V_9_4_0.getKnnFormatFacadeSupplier().apply(V_9_4_0.getDefaultCodecDelegate()));
}

public void testKNN950Codec() {
assertDelegateForVersion(V_9_5_0, Lucene95Codec.class);
assertNotNull(V_9_5_0.getPerFieldKnnVectorsFormat());
assertNotNull(V_9_5_0.getKnnFormatFacadeSupplier().apply(V_9_5_0.getDefaultCodecDelegate()));
}

private void assertDelegateForVersion(final KNNCodecVersion codecVersion, final Class expectedCodecClass) {
final Codec defaultDelegate = codecVersion.getDefaultCodecDelegate();
assertNotNull(defaultDelegate);
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