From ae3c9b141dbd769e6a4647b45d121d517586335a Mon Sep 17 00:00:00 2001 From: Prabhat <20185657+CaptainDredge@users.noreply.github.com> Date: Wed, 20 Mar 2024 06:23:15 -0700 Subject: [PATCH] Added static setting for checkPendingFlushUpdate functionality of lucene writer (#12710) (#12786) Signed-off-by: Prabhat Sharma Co-authored-by: Prabhat Sharma (cherry picked from commit c369ec44e381ddb85db647d89389842952a1c06a) (cherry picked from commit 29bcc484974c9eb1cbec938dd379ffe3e1de695d) Signed-off-by: Prabhat Sharma --- CHANGELOG.md | 1 + .../opensearch.release-notes-2.13.0.md | 1 + .../common/settings/IndexScopedSettings.java | 1 + .../org/opensearch/index/IndexSettings.java | 20 ++++++++++++++++++- .../index/engine/InternalEngine.java | 1 + 5 files changed, 23 insertions(+), 1 deletion(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 1f9936e9a321c..8f45908bf6f25 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -30,6 +30,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), - Built-in secure transports support ([#12435](https://github.com/opensearch-project/OpenSearch/pull/12435)) - Lightweight Transport action to verify local term before fetching cluster-state from remote ([#12252](https://github.com/opensearch-project/OpenSearch/pull/12252/)) - Integrate with admission controller for cluster-manager Read API. ([#12496](https://github.com/opensearch-project/OpenSearch/pull/12496)) +- Introduce a new setting `index.check_pending_flush.enabled` to expose the ability to disable the check for pending flushes by write threads ([#12710](https://github.com/opensearch-project/OpenSearch/pull/12710)) ### Dependencies - Bump `com.squareup.okio:okio` from 3.7.0 to 3.8.0 ([#12290](https://github.com/opensearch-project/OpenSearch/pull/12290)) diff --git a/release-notes/opensearch.release-notes-2.13.0.md b/release-notes/opensearch.release-notes-2.13.0.md index e55c22d6b851d..e3b4fb3ad5db3 100644 --- a/release-notes/opensearch.release-notes-2.13.0.md +++ b/release-notes/opensearch.release-notes-2.13.0.md @@ -27,6 +27,7 @@ - Built-in secure transports support ([#12435](https://github.com/opensearch-project/OpenSearch/pull/12435)) - Lightweight Transport action to verify local term before fetching cluster-state from remote ([#12252](https://github.com/opensearch-project/OpenSearch/pull/12252/)) - Integrate with admission controller for cluster-manager Read API. ([#12496](https://github.com/opensearch-project/OpenSearch/pull/12496)) +- Introduce a new setting `index.check_pending_flush.enabled` to expose the ability to disable the check for pending flushes by write threads ([#12710](https://github.com/opensearch-project/OpenSearch/pull/12710)) ### Dependencies - Bump `com.squareup.okio:okio` from 3.7.0 to 3.8.0 ([#12290](https://github.com/opensearch-project/OpenSearch/pull/12290)) diff --git a/server/src/main/java/org/opensearch/common/settings/IndexScopedSettings.java b/server/src/main/java/org/opensearch/common/settings/IndexScopedSettings.java index 49bb3abf1decd..c6c312d6b6eea 100644 --- a/server/src/main/java/org/opensearch/common/settings/IndexScopedSettings.java +++ b/server/src/main/java/org/opensearch/common/settings/IndexScopedSettings.java @@ -207,6 +207,7 @@ public final class IndexScopedSettings extends AbstractScopedSettings { IndexSettings.INDEX_MERGE_ON_FLUSH_MAX_FULL_FLUSH_MERGE_WAIT_TIME, IndexSettings.INDEX_MERGE_ON_FLUSH_POLICY, IndexSettings.INDEX_MERGE_POLICY, + IndexSettings.INDEX_CHECK_PENDING_FLUSH_ENABLED, LogByteSizeMergePolicyProvider.INDEX_LBS_MERGE_POLICY_MERGE_FACTOR_SETTING, LogByteSizeMergePolicyProvider.INDEX_LBS_MERGE_POLICY_MIN_MERGE_SETTING, LogByteSizeMergePolicyProvider.INDEX_LBS_MAX_MERGE_SEGMENT_SETTING, diff --git a/server/src/main/java/org/opensearch/index/IndexSettings.java b/server/src/main/java/org/opensearch/index/IndexSettings.java index b39f5116e2d6d..e1eda9b1de72e 100644 --- a/server/src/main/java/org/opensearch/index/IndexSettings.java +++ b/server/src/main/java/org/opensearch/index/IndexSettings.java @@ -625,6 +625,16 @@ public static IndexMergePolicy fromString(String text) { Property.IndexScope ); + /** + * Expert: Makes indexing threads check for pending flushes on update in order to help out + * flushing indexing buffers to disk. This is an experimental Apache Lucene feature. + */ + public static final Setting INDEX_CHECK_PENDING_FLUSH_ENABLED = Setting.boolSetting( + "index.check_pending_flush.enabled", + true, + Property.IndexScope + ); + public static final Setting TIME_SERIES_INDEX_MERGE_POLICY = Setting.simpleString( "indices.time_series_index.default_index_merge_policy", DEFAULT_POLICY, @@ -816,7 +826,10 @@ private void setRetentionLeaseMillis(final TimeValue retentionLease) { * Specialized merge-on-flush policy if provided */ private volatile UnaryOperator mergeOnFlushPolicy; - + /** + * Is flush check by write threads enabled or not + */ + private final boolean checkPendingFlushEnabled; /** * Is fuzzy set enabled for doc id */ @@ -958,6 +971,7 @@ public IndexSettings(final IndexMetadata indexMetadata, final Settings nodeSetti maxFullFlushMergeWaitTime = scopedSettings.get(INDEX_MERGE_ON_FLUSH_MAX_FULL_FLUSH_MERGE_WAIT_TIME); mergeOnFlushEnabled = scopedSettings.get(INDEX_MERGE_ON_FLUSH_ENABLED); setMergeOnFlushPolicy(scopedSettings.get(INDEX_MERGE_ON_FLUSH_POLICY)); + checkPendingFlushEnabled = scopedSettings.get(INDEX_CHECK_PENDING_FLUSH_ENABLED); defaultSearchPipeline = scopedSettings.get(DEFAULT_SEARCH_PIPELINE); /* There was unintentional breaking change got introduced with [OpenSearch-6424](https://github.com/opensearch-project/OpenSearch/pull/6424) (version 2.7). * For indices created prior version (prior to 2.7) which has IndexSort type, they used to type cast the SortField.Type @@ -1844,6 +1858,10 @@ private void setMergeOnFlushPolicy(String policy) { } } + public boolean isCheckPendingFlushEnabled() { + return checkPendingFlushEnabled; + } + public Optional> getMergeOnFlushPolicy() { return Optional.ofNullable(mergeOnFlushPolicy); } diff --git a/server/src/main/java/org/opensearch/index/engine/InternalEngine.java b/server/src/main/java/org/opensearch/index/engine/InternalEngine.java index afdf40f5339c6..e9be55fcb6233 100644 --- a/server/src/main/java/org/opensearch/index/engine/InternalEngine.java +++ b/server/src/main/java/org/opensearch/index/engine/InternalEngine.java @@ -2473,6 +2473,7 @@ private IndexWriterConfig getIndexWriterConfig() { iwc.setMaxFullFlushMergeWaitMillis(0); } + iwc.setCheckPendingFlushUpdate(config().getIndexSettings().isCheckPendingFlushEnabled()); iwc.setMergePolicy(new OpenSearchMergePolicy(mergePolicy)); iwc.setSimilarity(engineConfig.getSimilarity()); iwc.setRAMBufferSizeMB(engineConfig.getIndexingBufferSize().getMbFrac());