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FS stats for warm nodes based on addressable space #18767
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57 changes: 57 additions & 0 deletions
57
server/src/main/java/org/opensearch/monitor/fs/FsServiceProvider.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
||
| package org.opensearch.monitor.fs; | ||
|
|
||
| import org.opensearch.cluster.node.DiscoveryNode; | ||
| import org.opensearch.common.settings.ClusterSettings; | ||
| import org.opensearch.common.settings.Settings; | ||
| import org.opensearch.env.NodeEnvironment; | ||
| import org.opensearch.index.store.remote.filecache.FileCache; | ||
| import org.opensearch.index.store.remote.filecache.FileCacheSettings; | ||
| import org.opensearch.indices.IndicesService; | ||
|
|
||
| /** | ||
| * Factory for creating appropriate FsService implementations based on node type. | ||
| * | ||
| * @opensearch.internal | ||
| */ | ||
| public class FsServiceProvider { | ||
|
|
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| private final Settings settings; | ||
| private final NodeEnvironment nodeEnvironment; | ||
| private final FileCache fileCache; | ||
| private final FileCacheSettings fileCacheSettings; | ||
| private final IndicesService indicesService; | ||
|
|
||
| public FsServiceProvider( | ||
| Settings settings, | ||
| NodeEnvironment nodeEnvironment, | ||
| FileCache fileCache, | ||
| ClusterSettings clusterSettings, | ||
| IndicesService indicesService | ||
| ) { | ||
| this.settings = settings; | ||
| this.nodeEnvironment = nodeEnvironment; | ||
| this.fileCache = fileCache; | ||
| this.fileCacheSettings = new FileCacheSettings(settings, clusterSettings); | ||
| this.indicesService = indicesService; | ||
| } | ||
|
|
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| /** | ||
| * Creates the appropriate FsService implementation based on node type. | ||
| * | ||
| * @return FsService instance | ||
| */ | ||
| public FsService createFsService() { | ||
| if (DiscoveryNode.isWarmNode(settings)) { | ||
| return new WarmFsService(settings, nodeEnvironment, fileCacheSettings, indicesService, fileCache); | ||
| } | ||
| return new FsService(settings, nodeEnvironment, fileCache); | ||
| } | ||
| } |
92 changes: 92 additions & 0 deletions
92
server/src/main/java/org/opensearch/monitor/fs/WarmFsService.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
||
| package org.opensearch.monitor.fs; | ||
|
|
||
| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
| import org.opensearch.common.settings.Settings; | ||
| import org.opensearch.env.NodeEnvironment; | ||
| import org.opensearch.index.IndexService; | ||
| import org.opensearch.index.shard.IndexShard; | ||
| import org.opensearch.index.store.remote.filecache.FileCache; | ||
| import org.opensearch.index.store.remote.filecache.FileCacheSettings; | ||
| import org.opensearch.indices.IndicesService; | ||
|
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| import static org.opensearch.monitor.fs.FsProbe.adjustForHugeFilesystems; | ||
|
|
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| /** | ||
| * FileSystem service implementation for warm nodes that calculates disk usage | ||
| * based on file cache size and remote data ratio instead of actual physical disk usage. | ||
| * | ||
| * @opensearch.internal | ||
| */ | ||
| public class WarmFsService extends FsService { | ||
|
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| private static final Logger logger = LogManager.getLogger(WarmFsService.class); | ||
|
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| private final FileCacheSettings fileCacheSettings; | ||
| private final IndicesService indicesService; | ||
| private final FileCache fileCache; | ||
|
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| public WarmFsService( | ||
| Settings settings, | ||
| NodeEnvironment nodeEnvironment, | ||
| FileCacheSettings fileCacheSettings, | ||
| IndicesService indicesService, | ||
| FileCache fileCache | ||
| ) { | ||
| super(settings, nodeEnvironment, fileCache); | ||
| this.fileCacheSettings = fileCacheSettings; | ||
| this.indicesService = indicesService; | ||
| this.fileCache = fileCache; | ||
| } | ||
|
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| @Override | ||
| public FsInfo stats() { | ||
| // Calculate total addressable space | ||
| final double dataToFileCacheSizeRatio = fileCacheSettings.getRemoteDataRatio(); | ||
| final long nodeCacheSize = fileCache != null ? fileCache.capacity() : 0; | ||
| final long totalBytes = (long) (dataToFileCacheSizeRatio * nodeCacheSize); | ||
|
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| // Calculate used bytes from primary shards | ||
| long usedBytes = 0; | ||
| if (indicesService != null) { | ||
| for (IndexService indexService : indicesService) { | ||
| for (IndexShard shard : indexService) { | ||
| if (shard.routingEntry() != null && shard.routingEntry().primary() && shard.routingEntry().active()) { | ||
| try { | ||
| usedBytes += shard.store().stats(0).getSizeInBytes(); | ||
| } catch (Exception e) { | ||
| logger.error("Unable to get store size for shard {} with error: {}", shard.shardId(), e.getMessage()); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| long freeBytes = Math.max(0, totalBytes - usedBytes); | ||
|
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| FsInfo.Path warmPath = new FsInfo.Path(); | ||
| warmPath.path = "/warm"; | ||
| warmPath.mount = "warm"; | ||
| warmPath.type = "warm"; | ||
| warmPath.total = adjustForHugeFilesystems(totalBytes); | ||
| warmPath.free = adjustForHugeFilesystems(freeBytes); | ||
| warmPath.available = adjustForHugeFilesystems(freeBytes); | ||
| if (fileCache != null) { | ||
| warmPath.fileCacheReserved = adjustForHugeFilesystems(fileCache.capacity()); | ||
| warmPath.fileCacheUtilized = adjustForHugeFilesystems(fileCache.usage()); | ||
| } | ||
|
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| logger.trace("Warm node disk usage - total: {}, used: {}, free: {}", totalBytes, usedBytes, freeBytes); | ||
|
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| FsInfo nodeFsInfo = super.stats(); | ||
| return new FsInfo(System.currentTimeMillis(), nodeFsInfo.getIoStats(), new FsInfo.Path[] { warmPath }); | ||
| } | ||
| } |
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