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Optimized ClusterStatsIndices to precomute shard stats
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99 changes: 99 additions & 0 deletions
99
server/src/main/java/org/opensearch/action/admin/cluster/stats/NodeIndexShardStats.java
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| @@ -0,0 +1,99 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
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| package org.opensearch.action.admin.cluster.stats; | ||
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| import org.opensearch.action.admin.indices.stats.CommonStats; | ||
| import org.opensearch.action.admin.indices.stats.ShardStats; | ||
| import org.opensearch.action.support.nodes.BaseNodeResponse; | ||
| import org.opensearch.cluster.node.DiscoveryNode; | ||
| import org.opensearch.core.common.io.stream.StreamInput; | ||
| import org.opensearch.core.common.io.stream.StreamOutput; | ||
| import org.opensearch.index.cache.query.QueryCacheStats; | ||
| import org.opensearch.index.engine.SegmentsStats; | ||
| import org.opensearch.index.fielddata.FieldDataStats; | ||
| import org.opensearch.index.shard.DocsStats; | ||
| import org.opensearch.index.store.StoreStats; | ||
| import org.opensearch.search.suggest.completion.CompletionStats; | ||
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| import java.io.IOException; | ||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
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| /** | ||
| * Node level statistics used for ClusterStatsIndices for _cluster/stats call. | ||
| */ | ||
| public class NodeIndexShardStats extends BaseNodeResponse { | ||
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| DocsStats docs; | ||
| StoreStats store; | ||
| FieldDataStats fieldData; | ||
| QueryCacheStats queryCache; | ||
| CompletionStats completion; | ||
| SegmentsStats segments; | ||
| Map<String, ClusterStatsIndices.ShardStats> indexStatsMap; | ||
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| protected NodeIndexShardStats(StreamInput in) throws IOException { | ||
| super(in); | ||
| docs = in.readOptionalWriteable(DocsStats::new); | ||
| store = in.readOptionalWriteable(StoreStats::new); | ||
| fieldData = in.readOptionalWriteable(FieldDataStats::new); | ||
| queryCache = in.readOptionalWriteable(QueryCacheStats::new); | ||
| completion = in.readOptionalWriteable(CompletionStats::new); | ||
| segments = in.readOptionalWriteable(SegmentsStats::new); | ||
| indexStatsMap = in.readMap(StreamInput::readString, ClusterStatsIndices.ShardStats::new); | ||
| } | ||
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| protected NodeIndexShardStats(DiscoveryNode node, ShardStats[] indexShardsStats) { | ||
| super(node); | ||
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| this.docs = new DocsStats(); | ||
| this.store = new StoreStats(); | ||
| this.fieldData = new FieldDataStats(); | ||
| this.queryCache = new QueryCacheStats(); | ||
| this.completion = new CompletionStats(); | ||
| this.segments = new SegmentsStats(); | ||
| this.indexStatsMap = new HashMap<>(); | ||
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| // Index Level Stats | ||
| for (org.opensearch.action.admin.indices.stats.ShardStats shardStats : indexShardsStats) { | ||
| ClusterStatsIndices.ShardStats indexShardStats = this.indexStatsMap.get(shardStats.getShardRouting().getIndexName()); | ||
| if (indexShardStats == null) { | ||
| indexShardStats = new ClusterStatsIndices.ShardStats(); | ||
| this.indexStatsMap.put(shardStats.getShardRouting().getIndexName(), indexShardStats); | ||
| } | ||
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| indexShardStats.total++; | ||
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| CommonStats shardCommonStats = shardStats.getStats(); | ||
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| if (shardStats.getShardRouting().primary()) { | ||
| indexShardStats.primaries++; | ||
| this.docs.add(shardCommonStats.docs); | ||
| } | ||
| this.store.add(shardCommonStats.store); | ||
| this.fieldData.add(shardCommonStats.fieldData); | ||
| this.queryCache.add(shardCommonStats.queryCache); | ||
| this.completion.add(shardCommonStats.completion); | ||
| this.segments.add(shardCommonStats.segments); | ||
| } | ||
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| } | ||
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| @Override | ||
| public void writeTo(StreamOutput out) throws IOException { | ||
| super.writeTo(out); | ||
| out.writeOptionalWriteable(docs); | ||
| out.writeOptionalWriteable(store); | ||
| out.writeOptionalWriteable(fieldData); | ||
| out.writeOptionalWriteable(queryCache); | ||
| out.writeOptionalWriteable(completion); | ||
| out.writeOptionalWriteable(segments); | ||
| out.writeMap(indexStatsMap, StreamOutput::writeString, (stream, stats) -> stats.writeTo(stream)); | ||
| } | ||
| } |
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