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* Add Clear Cache API Signed-off-by: Naveen Tatikonda <[email protected]> * Add Unit and Integration tests Signed-off-by: Naveen Tatikonda <[email protected]> * Add BWC Tests Signed-off-by: Naveen Tatikonda <[email protected]> * Add CHANGELOG Signed-off-by: Naveen Tatikonda <[email protected]> * Address Review Comments Signed-off-by: Naveen Tatikonda <[email protected]> --------- Signed-off-by: Naveen Tatikonda <[email protected]>
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49 changes: 49 additions & 0 deletions
49
qa/restart-upgrade/src/test/java/org/opensearch/knn/bwc/ClearCacheIT.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| /* | ||
| * Copyright OpenSearch Contributors | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
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| package org.opensearch.knn.bwc; | ||
|
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| import java.util.Collections; | ||
| import static org.opensearch.knn.TestUtils.NODES_BWC_CLUSTER; | ||
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| public class ClearCacheIT extends AbstractRestartUpgradeTestCase { | ||
| private static final String TEST_FIELD = "test-field"; | ||
| private static final int DIMENSIONS = 5; | ||
| private static int docId = 0; | ||
| private static final int NUM_DOCS = 10; | ||
| private static int queryCnt = 0; | ||
| private static final int K = 5; | ||
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| // Restart Upgrade BWC Tests to validate Clear Cache API | ||
| public void testClearCache() throws Exception { | ||
| waitForClusterHealthGreen(NODES_BWC_CLUSTER); | ||
| if (isRunningAgainstOldCluster()) { | ||
| createKnnIndex(testIndex, getKNNDefaultIndexSettings(), createKnnIndexMapping(TEST_FIELD, DIMENSIONS)); | ||
| addKNNDocs(testIndex, TEST_FIELD, DIMENSIONS, docId, NUM_DOCS); | ||
| } else { | ||
| queryCnt = NUM_DOCS; | ||
| validateClearCacheOnUpgrade(queryCnt); | ||
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| docId = NUM_DOCS; | ||
| addKNNDocs(testIndex, TEST_FIELD, DIMENSIONS, docId, NUM_DOCS); | ||
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| queryCnt = queryCnt + NUM_DOCS; | ||
| validateClearCacheOnUpgrade(queryCnt); | ||
| deleteKNNIndex(testIndex); | ||
| } | ||
| } | ||
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| // validation steps for Clear Cache API after upgrading node to new version | ||
| private void validateClearCacheOnUpgrade(int queryCount) throws Exception { | ||
| int graphCount = getTotalGraphsInCache(); | ||
| knnWarmup(Collections.singletonList(testIndex)); | ||
| assertTrue(getTotalGraphsInCache() > graphCount); | ||
| validateKNNSearch(testIndex, TEST_FIELD, DIMENSIONS, queryCount, K); | ||
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| clearCache(Collections.singletonList(testIndex)); | ||
| assertEquals(0, getTotalGraphsInCache()); | ||
| validateKNNSearch(testIndex, TEST_FIELD, DIMENSIONS, queryCount, K); | ||
| } | ||
| } |
55 changes: 55 additions & 0 deletions
55
qa/rolling-upgrade/src/test/java/org/opensearch/knn/bwc/ClearCacheIT.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| /* | ||
| * Copyright OpenSearch Contributors | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
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| package org.opensearch.knn.bwc; | ||
|
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| import java.util.Collections; | ||
|
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| import static org.opensearch.knn.TestUtils.NODES_BWC_CLUSTER; | ||
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| public class ClearCacheIT extends AbstractRollingUpgradeTestCase { | ||
| private static final String TEST_FIELD = "test-field"; | ||
| private static final int DIMENSIONS = 5; | ||
| private static int docId = 0; | ||
| private static final int K = 5; | ||
| private static final int NUM_DOCS = 10; | ||
| private static int queryCnt = 0; | ||
|
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| // Rolling Upgrade BWC Tests to validate Clear Cache API | ||
| public void testClearCache() throws Exception { | ||
| waitForClusterHealthGreen(NODES_BWC_CLUSTER); | ||
| switch (getClusterType()) { | ||
| case OLD: | ||
| createKnnIndex(testIndex, getKNNDefaultIndexSettings(), createKnnIndexMapping(TEST_FIELD, DIMENSIONS)); | ||
| int docIdOld = 0; | ||
| addKNNDocs(testIndex, TEST_FIELD, DIMENSIONS, docIdOld, NUM_DOCS); | ||
| break; | ||
| case UPGRADED: | ||
| queryCnt = NUM_DOCS; | ||
| validateClearCacheOnUpgrade(queryCnt); | ||
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| docId = NUM_DOCS; | ||
| addKNNDocs(testIndex, TEST_FIELD, DIMENSIONS, docId, NUM_DOCS); | ||
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| queryCnt = queryCnt + NUM_DOCS; | ||
| validateClearCacheOnUpgrade(queryCnt); | ||
| deleteKNNIndex(testIndex); | ||
| } | ||
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| } | ||
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| // validation steps for Clear Cache API after upgrading all nodes from old version to new version | ||
| public void validateClearCacheOnUpgrade(int queryCount) throws Exception { | ||
| int graphCount = getTotalGraphsInCache(); | ||
| knnWarmup(Collections.singletonList(testIndex)); | ||
| assertTrue(getTotalGraphsInCache() > graphCount); | ||
| validateKNNSearch(testIndex, TEST_FIELD, DIMENSIONS, queryCount, K); | ||
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| clearCache(Collections.singletonList(testIndex)); | ||
| assertEquals(0, getTotalGraphsInCache()); | ||
| validateKNNSearch(testIndex, TEST_FIELD, DIMENSIONS, queryCount, K); | ||
| } | ||
|
|
||
| } |
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98 changes: 98 additions & 0 deletions
98
src/main/java/org/opensearch/knn/plugin/rest/RestClearCacheHandler.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| /* | ||
| * Copyright OpenSearch Contributors | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
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| package org.opensearch.knn.plugin.rest; | ||
|
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| import com.google.common.collect.ImmutableList; | ||
| import lombok.AllArgsConstructor; | ||
| import lombok.extern.log4j.Log4j2; | ||
| import org.opensearch.client.node.NodeClient; | ||
| import org.opensearch.cluster.metadata.IndexNameExpressionResolver; | ||
| import org.opensearch.cluster.service.ClusterService; | ||
| import org.opensearch.core.common.Strings; | ||
| import org.opensearch.core.index.Index; | ||
| import org.opensearch.knn.common.exception.KNNInvalidIndicesException; | ||
| import org.opensearch.knn.plugin.KNNPlugin; | ||
| import org.opensearch.knn.plugin.transport.ClearCacheAction; | ||
| import org.opensearch.knn.plugin.transport.ClearCacheRequest; | ||
| import org.opensearch.rest.BaseRestHandler; | ||
| import org.opensearch.rest.RestRequest; | ||
| import org.opensearch.rest.action.RestToXContentListener; | ||
|
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| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.Locale; | ||
| import java.util.stream.Collectors; | ||
|
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| import static org.opensearch.action.support.IndicesOptions.strictExpandOpen; | ||
| import static org.opensearch.knn.common.KNNConstants.CLEAR_CACHE; | ||
| import static org.opensearch.knn.index.KNNSettings.KNN_INDEX; | ||
|
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| /** | ||
| * RestHandler for k-NN Clear Cache API. API provides the ability for a user to evict those indices from Cache. | ||
| */ | ||
| @AllArgsConstructor | ||
| @Log4j2 | ||
| public class RestClearCacheHandler extends BaseRestHandler { | ||
| private static final String INDEX = "index"; | ||
| public static String NAME = "knn_clear_cache_action"; | ||
| private final ClusterService clusterService; | ||
| private final IndexNameExpressionResolver indexNameExpressionResolver; | ||
|
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| /** | ||
| * @return name of Clear Cache API action | ||
| */ | ||
| @Override | ||
| public String getName() { | ||
| return NAME; | ||
| } | ||
|
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| /** | ||
| * @return Immutable List of Clear Cache API endpoint | ||
| */ | ||
| @Override | ||
| public List<Route> routes() { | ||
| return ImmutableList.of( | ||
| new Route(RestRequest.Method.POST, String.format(Locale.ROOT, "%s/%s/{%s}", KNNPlugin.KNN_BASE_URI, CLEAR_CACHE, INDEX)) | ||
| ); | ||
| } | ||
|
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| /** | ||
| * @param request RestRequest | ||
| * @param client NodeClient | ||
| * @return RestChannelConsumer | ||
| */ | ||
| @Override | ||
| protected RestChannelConsumer prepareRequest(RestRequest request, NodeClient client) { | ||
| ClearCacheRequest clearCacheRequest = createClearCacheRequest(request); | ||
| log.info("[KNN] ClearCache started for the following indices: [{}]", String.join(",", clearCacheRequest.indices())); | ||
| return channel -> client.execute(ClearCacheAction.INSTANCE, clearCacheRequest, new RestToXContentListener<>(channel)); | ||
| } | ||
|
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| // Create a clear cache request by processing the rest request and validating the indices | ||
| private ClearCacheRequest createClearCacheRequest(RestRequest request) { | ||
| String[] indexNames = Strings.splitStringByCommaToArray(request.param("index")); | ||
| Index[] indices = indexNameExpressionResolver.concreteIndices(clusterService.state(), strictExpandOpen(), indexNames); | ||
| validateIndices(indices); | ||
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| return new ClearCacheRequest(indexNames); | ||
| } | ||
|
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| // Validate if the given indices are k-NN indices or not. If there are any invalid indices, | ||
| // the request is rejected and an exception is thrown. | ||
| private void validateIndices(Index[] indices) { | ||
| List<String> invalidIndexNames = Arrays.stream(indices) | ||
| .filter(index -> !"true".equals(clusterService.state().metadata().getIndexSafe(index).getSettings().get(KNN_INDEX))) | ||
| .map(Index::getName) | ||
| .collect(Collectors.toList()); | ||
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| if (!invalidIndexNames.isEmpty()) { | ||
| throw new KNNInvalidIndicesException( | ||
| invalidIndexNames, | ||
| "ClearCache request rejected. One or more indices have 'index.knn' set to false." | ||
| ); | ||
| } | ||
| } | ||
| } |
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