/
IndexSettings.java
1581 lines (1418 loc) · 62.9 KB
/
IndexSettings.java
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/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.index;
import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.util.Strings;
import org.apache.lucene.index.MergePolicy;
import org.apache.lucene.search.uhighlight.UnifiedHighlighter;
import org.elasticsearch.cluster.metadata.IndexMetadata;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.cluster.routing.IndexRouting;
import org.elasticsearch.common.logging.Loggers;
import org.elasticsearch.common.settings.AbstractScopedSettings;
import org.elasticsearch.common.settings.IndexScopedSettings;
import org.elasticsearch.common.settings.Setting;
import org.elasticsearch.common.settings.Setting.Property;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.time.DateUtils;
import org.elasticsearch.common.unit.ByteSizeUnit;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.core.TimeValue;
import org.elasticsearch.index.translog.Translog;
import org.elasticsearch.ingest.IngestService;
import org.elasticsearch.node.Node;
import java.time.Instant;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;
import java.util.function.Function;
import static org.elasticsearch.cluster.metadata.IndexMetadata.SETTING_INDEX_VERSION_CREATED;
import static org.elasticsearch.cluster.routing.allocation.ExistingShardsAllocator.EXISTING_SHARDS_ALLOCATOR_SETTING;
import static org.elasticsearch.index.mapper.MapperService.INDEX_MAPPING_DEPTH_LIMIT_SETTING;
import static org.elasticsearch.index.mapper.MapperService.INDEX_MAPPING_DIMENSION_FIELDS_LIMIT_SETTING;
import static org.elasticsearch.index.mapper.MapperService.INDEX_MAPPING_FIELD_NAME_LENGTH_LIMIT_SETTING;
import static org.elasticsearch.index.mapper.MapperService.INDEX_MAPPING_IGNORE_DYNAMIC_BEYOND_LIMIT_SETTING;
import static org.elasticsearch.index.mapper.MapperService.INDEX_MAPPING_NESTED_DOCS_LIMIT_SETTING;
import static org.elasticsearch.index.mapper.MapperService.INDEX_MAPPING_NESTED_FIELDS_LIMIT_SETTING;
import static org.elasticsearch.index.mapper.MapperService.INDEX_MAPPING_TOTAL_FIELDS_LIMIT_SETTING;
/**
* This class encapsulates all index level settings and handles settings updates.
* It's created per index and available to all index level classes and allows them to retrieve
* the latest updated settings instance. Classes that need to listen to settings updates can register
* a settings consumer at index creation via {@link IndexModule#addSettingsUpdateConsumer(Setting, Consumer)} that will
* be called for each settings update.
*/
public final class IndexSettings {
public static final Setting<List<String>> DEFAULT_FIELD_SETTING = Setting.stringListSetting(
"index.query.default_field",
Collections.singletonList("*"),
Property.IndexScope,
Property.Dynamic,
Property.ServerlessPublic
);
public static final Setting<Boolean> QUERY_STRING_LENIENT_SETTING = Setting.boolSetting(
"index.query_string.lenient",
false,
Property.IndexScope,
Property.ServerlessPublic
);
public static final Setting<Boolean> QUERY_STRING_ANALYZE_WILDCARD = Setting.boolSetting(
"indices.query.query_string.analyze_wildcard",
false,
Property.NodeScope
);
public static final Setting<Boolean> QUERY_STRING_ALLOW_LEADING_WILDCARD = Setting.boolSetting(
"indices.query.query_string.allowLeadingWildcard",
true,
Property.NodeScope
);
public static final Setting<Boolean> ALLOW_UNMAPPED = Setting.boolSetting(
"index.query.parse.allow_unmapped_fields",
true,
Property.IndexScope
);
public static final Setting<TimeValue> INDEX_TRANSLOG_SYNC_INTERVAL_SETTING = Setting.timeSetting(
"index.translog.sync_interval",
TimeValue.timeValueSeconds(5),
TimeValue.timeValueMillis(100),
Property.Dynamic,
Property.IndexScope
);
public static final Setting<TimeValue> INDEX_SEARCH_IDLE_AFTER = Setting.timeSetting(
"index.search.idle.after",
TimeValue.timeValueSeconds(30),
TimeValue.timeValueMinutes(0),
Property.IndexScope,
Property.Dynamic
);
public static final Setting<Translog.Durability> INDEX_TRANSLOG_DURABILITY_SETTING = Setting.enumSetting(
Translog.Durability.class,
"index.translog.durability",
Translog.Durability.REQUEST,
Property.Dynamic,
Property.IndexScope
);
public static final Setting<Boolean> INDEX_WARMER_ENABLED_SETTING = Setting.boolSetting(
"index.warmer.enabled",
true,
Property.Dynamic,
Property.IndexScope
);
public static final Setting<String> INDEX_CHECK_ON_STARTUP = new Setting<>("index.shard.check_on_startup", "false", (s) -> {
return switch (s) {
case "false", "true", "checksum" -> s;
default -> throw new IllegalArgumentException(
"unknown value for [index.shard.check_on_startup] must be one of " + "[true, false, checksum] but was: " + s
);
};
}, Property.IndexScope);
/**
* Index setting describing the maximum value of from + size on a query.
* The Default maximum value of from + size on a query is 10,000. This was chosen as
* a conservative default as it is sure to not cause trouble. Users can
* certainly profile their cluster and decide to set it to 100,000
* safely. 1,000,000 is probably way to high for any cluster to set
* safely.
*/
public static final Setting<Integer> MAX_RESULT_WINDOW_SETTING = Setting.intSetting(
"index.max_result_window",
10000,
1,
Property.Dynamic,
Property.IndexScope
);
/**
* Index setting describing the maximum value of from + size on an individual inner hit definition or
* top hits aggregation. The default maximum of 100 is defensive for the reason that the number of inner hit responses
* and number of top hits buckets returned is unbounded. Profile your cluster when increasing this setting.
*/
public static final Setting<Integer> MAX_INNER_RESULT_WINDOW_SETTING = Setting.intSetting(
"index.max_inner_result_window",
100,
1,
Property.Dynamic,
Property.IndexScope
);
/**
* Index setting describing the maximum value of allowed `script_fields`that can be retrieved
* per search request. The default maximum of 32 is defensive for the reason that retrieving
* script fields is a costly operation.
*/
public static final Setting<Integer> MAX_SCRIPT_FIELDS_SETTING = Setting.intSetting(
"index.max_script_fields",
32,
0,
Property.Dynamic,
Property.IndexScope
);
/**
* A setting describing the maximum number of tokens that can be
* produced using _analyze API. The default maximum of 10000 is defensive
* to prevent generating too many token objects.
*/
public static final Setting<Integer> MAX_TOKEN_COUNT_SETTING = Setting.intSetting(
"index.analyze.max_token_count",
10000,
1,
Property.Dynamic,
Property.IndexScope
);
/**
* A setting describing the maximum number of characters that will be analyzed for a highlight request.
* This setting is only applicable when highlighting is requested on a text that was indexed without
* offsets or term vectors.
* The default maximum of 1M characters is defensive as for highlighting larger texts,
* indexing with offsets or term vectors is recommended.
*/
public static final Setting<Integer> MAX_ANALYZED_OFFSET_SETTING = Setting.intSetting(
"index.highlight.max_analyzed_offset",
1000000,
1,
Property.Dynamic,
Property.IndexScope
);
/**
* Index setting to enable/disable the {@link UnifiedHighlighter.HighlightFlag#WEIGHT_MATCHES}
* mode of the unified highlighter.
*/
public static final Setting<Boolean> WEIGHT_MATCHES_MODE_ENABLED_SETTING = Setting.boolSetting(
"index.highlight.weight_matches_mode.enabled",
true,
Property.Dynamic,
Property.IndexScope
);
/**
* Index setting describing the maximum number of terms that can be used in Terms Query.
* The default maximum of 65536 terms is defensive, as extra processing and memory is involved
* for each additional term, and a large number of terms degrade the cluster performance.
*/
public static final Setting<Integer> MAX_TERMS_COUNT_SETTING = Setting.intSetting(
"index.max_terms_count",
65536,
1,
Property.Dynamic,
Property.IndexScope
);
/**
* Index setting describing for NGramTokenizer and NGramTokenFilter
* the maximum difference between
* max_gram (maximum length of characters in a gram) and
* min_gram (minimum length of characters in a gram).
* The default value is 1 as this is default difference in NGramTokenizer,
* and is defensive as it prevents generating too many index terms.
*/
public static final Setting<Integer> MAX_NGRAM_DIFF_SETTING = Setting.intSetting(
"index.max_ngram_diff",
1,
0,
Property.Dynamic,
Property.IndexScope
);
/**
* Index setting describing for ShingleTokenFilter
* the maximum difference between
* max_shingle_size and min_shingle_size.
* The default value is 3 is defensive as it prevents generating too many tokens.
*/
public static final Setting<Integer> MAX_SHINGLE_DIFF_SETTING = Setting.intSetting(
"index.max_shingle_diff",
3,
0,
Property.Dynamic,
Property.IndexScope
);
/**
* Index setting describing the maximum value of allowed `docvalue_fields`that can be retrieved
* per search request. The default maximum of 100 is defensive for the reason that retrieving
* doc values might incur a per-field per-document seek.
*/
public static final Setting<Integer> MAX_DOCVALUE_FIELDS_SEARCH_SETTING = Setting.intSetting(
"index.max_docvalue_fields_search",
100,
0,
Property.Dynamic,
Property.IndexScope
);
/**
* Index setting describing the maximum size of the rescore window. Defaults to {@link #MAX_RESULT_WINDOW_SETTING}
* because they both do the same thing: control the size of the heap of hits.
*/
public static final Setting<Integer> MAX_RESCORE_WINDOW_SETTING = Setting.intSetting(
"index.max_rescore_window",
MAX_RESULT_WINDOW_SETTING,
1,
Property.Dynamic,
Property.IndexScope
);
/**
* Only intended for stateless.
*/
public static final Setting<Boolean> INDEX_FAST_REFRESH_SETTING = Setting.boolSetting(
"index.fast_refresh",
false,
Property.Final,
Property.IndexScope
);
public static final TimeValue DEFAULT_REFRESH_INTERVAL = new TimeValue(1, TimeUnit.SECONDS);
public static final Setting<TimeValue> NODE_DEFAULT_REFRESH_INTERVAL_SETTING = Setting.timeSetting(
"node._internal.default_refresh_interval",
DEFAULT_REFRESH_INTERVAL,
TimeValue.MINUS_ONE,
Property.NodeScope
); // TODO: remove setting
public static TimeValue STATELESS_DEFAULT_REFRESH_INTERVAL = TimeValue.timeValueSeconds(15); // TODO: this value is still not final
public static TimeValue STATELESS_MIN_NON_FAST_REFRESH_INTERVAL = TimeValue.timeValueSeconds(5);
public static final Setting<TimeValue> INDEX_REFRESH_INTERVAL_SETTING = Setting.timeSetting("index.refresh_interval", (settings) -> {
if (EXISTING_SHARDS_ALLOCATOR_SETTING.get(settings).equals("stateless") && INDEX_FAST_REFRESH_SETTING.get(settings) == false) {
return STATELESS_DEFAULT_REFRESH_INTERVAL;
}
return DEFAULT_REFRESH_INTERVAL;
}, new RefreshIntervalValidator(), Property.Dynamic, Property.IndexScope, Property.ServerlessPublic);
static class RefreshIntervalValidator implements Setting.Validator<TimeValue> {
@Override
public void validate(TimeValue value) {}
@Override
public void validate(final TimeValue value, final Map<Setting<?>, Object> settings) {
final String existingShardsAllocator = (String) settings.get(EXISTING_SHARDS_ALLOCATOR_SETTING);
final Boolean fastRefresh = (Boolean) settings.get(INDEX_FAST_REFRESH_SETTING);
final IndexVersion indexVersion = (IndexVersion) settings.get(SETTING_INDEX_VERSION_CREATED);
if (existingShardsAllocator.equals("stateless")
&& fastRefresh == false
&& value.compareTo(TimeValue.ZERO) > 0
&& value.compareTo(STATELESS_MIN_NON_FAST_REFRESH_INTERVAL) < 0
&& indexVersion.after(IndexVersions.V_8_10_0)) {
throw new IllegalArgumentException(
"index setting ["
+ IndexSettings.INDEX_REFRESH_INTERVAL_SETTING.getKey()
+ "="
+ value
+ "] should be either "
+ TimeValue.MINUS_ONE
+ " or equal to or greater than "
+ STATELESS_MIN_NON_FAST_REFRESH_INTERVAL
);
}
}
@Override
public Iterator<Setting<?>> settings() {
return REFRESH_INTERVAL_VALIDATOR_SETTINGS_LIST.iterator();
}
}
private static final List<Setting<?>> REFRESH_INTERVAL_VALIDATOR_SETTINGS_LIST = List.of(
EXISTING_SHARDS_ALLOCATOR_SETTING,
INDEX_FAST_REFRESH_SETTING,
SETTING_INDEX_VERSION_CREATED
);
public static final Setting<ByteSizeValue> INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING = Setting.byteSizeSetting(
"index.translog.flush_threshold_size",
/*
* Prevent the translog from growing over 10GB or 20% of the recommended shard size of 50GB. This helps bound the maximum disk usage
* overhead of translogs.
*/
new ByteSizeValue(10, ByteSizeUnit.GB),
/*
* An empty translog occupies 55 bytes on disk. If the flush threshold is below this, the flush thread
* can get stuck in an infinite loop as the shouldPeriodicallyFlush can still be true after flushing.
* However, small thresholds are useful for testing so we do not add a large lower bound here.
*/
ByteSizeValue.ofBytes(Translog.DEFAULT_HEADER_SIZE_IN_BYTES + 1),
ByteSizeValue.ofBytes(Long.MAX_VALUE),
Property.Dynamic,
Property.IndexScope
);
public static final Setting<TimeValue> INDEX_TRANSLOG_FLUSH_THRESHOLD_AGE_SETTING = Setting.timeSetting(
"index.translog.flush_threshold_age",
/*
* Flush at least every minute by default. This gives a first order approximation of the maximum time it takes to replay translogs
* of about one minute as well. In practice, this is not exactly true since replaying translogs is not as concurrent as indexing,
* especially as Elasticsearch bounds the maximum number of concurrent replays of translogs, but it should still be a good enough
* approximation.
*/
new TimeValue(1, TimeUnit.MINUTES),
new TimeValue(1, TimeUnit.SECONDS),
new TimeValue(1, TimeUnit.HOURS),
Property.Dynamic,
Property.IndexScope
);
/**
* The minimum size of a merge that triggers a flush in order to free resources
*/
public static final Setting<ByteSizeValue> INDEX_FLUSH_AFTER_MERGE_THRESHOLD_SIZE_SETTING = Setting.byteSizeSetting(
"index.flush_after_merge",
new ByteSizeValue(512, ByteSizeUnit.MB),
ByteSizeValue.ZERO, // always flush after merge
ByteSizeValue.ofBytes(Long.MAX_VALUE), // never flush after merge
Property.Dynamic,
Property.IndexScope
);
/**
* The maximum size of a translog generation. This is independent of the maximum size of
* translog operations that have not been flushed.
*/
public static final Setting<ByteSizeValue> INDEX_TRANSLOG_GENERATION_THRESHOLD_SIZE_SETTING = Setting.byteSizeSetting(
"index.translog.generation_threshold_size",
new ByteSizeValue(64, ByteSizeUnit.MB),
/*
* An empty translog occupies 55 bytes on disk. If the generation threshold is
* below this, the flush thread can get stuck in an infinite loop repeatedly
* rolling the generation as every new generation will already exceed the
* generation threshold. However, small thresholds are useful for testing so we
* do not add a large lower bound here.
*/
ByteSizeValue.ofBytes(Translog.DEFAULT_HEADER_SIZE_IN_BYTES + 1),
ByteSizeValue.ofBytes(Long.MAX_VALUE),
Property.Dynamic,
Property.IndexScope
);
/**
* Index setting to enable / disable deletes garbage collection.
* This setting is realtime updateable
*/
public static final TimeValue DEFAULT_GC_DELETES = TimeValue.timeValueSeconds(60);
public static final Setting<TimeValue> INDEX_GC_DELETES_SETTING = Setting.timeSetting(
"index.gc_deletes",
DEFAULT_GC_DELETES,
new TimeValue(-1, TimeUnit.MILLISECONDS),
Property.Dynamic,
Property.IndexScope
);
/**
* Specifies if the index should use soft-delete instead of hard-delete for update/delete operations.
* Soft-deletes is enabled by default for 7.0 indices and mandatory for 8.0 indices.
*/
public static final Setting<Boolean> INDEX_SOFT_DELETES_SETTING = Setting.boolSetting(
"index.soft_deletes.enabled",
true,
Property.IndexScope,
Property.Final
);
/**
* Controls how many soft-deleted documents will be kept around before being merged away. Keeping more deleted
* documents increases the chance of operation-based recoveries and allows querying a longer history of documents.
* If soft-deletes is enabled, an engine by default will retain all operations up to the global checkpoint.
**/
public static final Setting<Long> INDEX_SOFT_DELETES_RETENTION_OPERATIONS_SETTING = Setting.longSetting(
"index.soft_deletes.retention.operations",
0,
0,
Property.IndexScope,
Property.Dynamic
);
/**
* Controls how long translog files that are no longer needed for persistence reasons
* will be kept around before being deleted. Keeping more files is useful to increase
* the chance of ops based recoveries for indices with soft-deletes disabled.
* TODO: Remove this setting in 9.0.
**/
public static final Setting<TimeValue> INDEX_TRANSLOG_RETENTION_AGE_SETTING = Setting.timeSetting(
"index.translog.retention.age",
TimeValue.MINUS_ONE,
TimeValue.MINUS_ONE,
Property.Dynamic,
Property.IndexScope
);
/**
* Controls how many translog files that are no longer needed for persistence reasons
* will be kept around before being deleted. Keeping more files is useful to increase
* the chance of ops based recoveries for indices with soft-deletes disabled.
* TODO: Remove this setting in 9.0.
**/
public static final Setting<ByteSizeValue> INDEX_TRANSLOG_RETENTION_SIZE_SETTING = Setting.byteSizeSetting(
"index.translog.retention.size",
settings -> "-1",
Property.Dynamic,
Property.IndexScope
);
/**
* Controls the maximum length of time since a retention lease is created or renewed before it is considered expired.
*/
public static final Setting<TimeValue> INDEX_SOFT_DELETES_RETENTION_LEASE_PERIOD_SETTING = Setting.timeSetting(
"index.soft_deletes.retention_lease.period",
TimeValue.timeValueHours(12),
TimeValue.ZERO,
Property.Dynamic,
Property.IndexScope
);
/**
* The maximum number of refresh listeners allows on this shard.
*/
public static final Setting<Integer> MAX_REFRESH_LISTENERS_PER_SHARD = Setting.intSetting(
"index.max_refresh_listeners",
1000,
0,
Property.Dynamic,
Property.IndexScope
);
/**
* The maximum number of slices allowed in a scroll request
*/
public static final Setting<Integer> MAX_SLICES_PER_SCROLL = Setting.intSetting(
"index.max_slices_per_scroll",
1024,
1,
Property.Dynamic,
Property.IndexScope
);
/**
* The maximum length of regex string allowed in a regexp query.
*/
public static final Setting<Integer> MAX_REGEX_LENGTH_SETTING = Setting.intSetting(
"index.max_regex_length",
1000,
1,
Property.Dynamic,
Property.IndexScope
);
public static final Setting<String> DEFAULT_PIPELINE = new Setting<>(
"index.default_pipeline",
IngestService.NOOP_PIPELINE_NAME,
Function.identity(),
Property.Dynamic,
Property.IndexScope,
Property.ServerlessPublic
);
public static final Setting<String> FINAL_PIPELINE = new Setting<>(
"index.final_pipeline",
IngestService.NOOP_PIPELINE_NAME,
Function.identity(),
Property.Dynamic,
Property.IndexScope,
Property.ServerlessPublic
);
/**
* Marks an index to be searched throttled. This means that never more than one shard of such an index will be searched concurrently
*/
public static final Setting<Boolean> INDEX_SEARCH_THROTTLED = Setting.boolSetting(
"index.search.throttled",
false,
Property.IndexScope,
Property.PrivateIndex,
Property.Dynamic
);
/**
* Determines a balance between file-based and operations-based peer recoveries. The number of operations that will be used in an
* operations-based peer recovery is limited to this proportion of the total number of documents in the shard (including deleted
* documents) on the grounds that a file-based peer recovery may copy all of the documents in the shard over to the new peer, but is
* significantly faster than replaying the missing operations on the peer, so once a peer falls far enough behind the primary it makes
* more sense to copy all the data over again instead of replaying history.
*
* Defaults to retaining history for up to 10% of the documents in the shard. This can only be changed in tests, since this setting is
* intentionally unregistered.
*/
public static final Setting<Double> FILE_BASED_RECOVERY_THRESHOLD_SETTING = Setting.doubleSetting(
"index.recovery.file_based_threshold",
0.1d,
0.0d,
Setting.Property.IndexScope
);
/**
* This index setting is intentionally undocumented and should be used as an escape hatch to disable BloomFilter of the
* _id field of non-data-stream indices, which is enabled by default. This setting doesn't affect data-stream indices.
*/
public static final Setting<Boolean> BLOOM_FILTER_ID_FIELD_ENABLED_SETTING = Setting.boolSetting(
"index.bloom_filter_for_id_field.enabled",
true,
Setting.Property.Dynamic,
Setting.Property.IndexScope,
Property.DeprecatedWarning
);
public static final String LIFECYCLE_ORIGINATION_DATE = "index.lifecycle.origination_date";
public static final Setting<Long> LIFECYCLE_ORIGINATION_DATE_SETTING = Setting.longSetting(
LIFECYCLE_ORIGINATION_DATE,
-1,
-1,
Property.Dynamic,
Property.IndexScope,
Property.ServerlessPublic
);
public static final String LIFECYCLE_PARSE_ORIGINATION_DATE = "index.lifecycle.parse_origination_date";
public static final Setting<Boolean> LIFECYCLE_PARSE_ORIGINATION_DATE_SETTING = Setting.boolSetting(
LIFECYCLE_PARSE_ORIGINATION_DATE,
false,
Property.Dynamic,
Property.IndexScope
);
public static final String PREFER_ILM = "index.lifecycle.prefer_ilm";
public static final Setting<Boolean> PREFER_ILM_SETTING = Setting.boolSetting(PREFER_ILM, true, Property.Dynamic, Property.IndexScope);
/**
* in time series mode, the start time of the index, timestamp must larger than start_time
*/
public static final Setting<Instant> TIME_SERIES_START_TIME = Setting.dateSetting(
"index.time_series.start_time",
Instant.ofEpochMilli(DateUtils.MAX_MILLIS_BEFORE_MINUS_9999),
v -> {},
Property.IndexScope,
Property.Final,
Property.ServerlessPublic
);
/**
* in time series mode, the end time of the index, timestamp must smaller than start_time
*/
public static final Setting<Instant> TIME_SERIES_END_TIME = Setting.dateSetting(
"index.time_series.end_time",
Instant.ofEpochMilli(DateUtils.MAX_MILLIS_BEFORE_9999),
new Setting.Validator<>() {
@Override
public void validate(Instant value) {}
@Override
public void validate(Instant value, Map<Setting<?>, Object> settings) {
@SuppressWarnings("unchecked")
Instant startTime = (Instant) settings.get(TIME_SERIES_START_TIME);
if (startTime.toEpochMilli() > value.toEpochMilli()) {
throw new IllegalArgumentException("index.time_series.end_time must be larger than index.time_series.start_time");
}
}
@Override
public Iterator<Setting<?>> settings() {
List<Setting<?>> settings = List.of(TIME_SERIES_START_TIME);
return settings.iterator();
}
},
Property.IndexScope,
Property.Dynamic,
Property.ServerlessPublic
);
public static final Setting<Boolean> TIME_SERIES_ES87TSDB_CODEC_ENABLED_SETTING = Setting.boolSetting(
"index.time_series.es87tsdb_codec.enabled",
true,
Property.IndexScope,
Property.Final
);
/**
* Returns <code>true</code> if TSDB encoding is enabled. The default is <code>true</code>
*/
public boolean isES87TSDBCodecEnabled() {
return es87TSDBCodecEnabled;
}
/**
* The {@link IndexMode "mode"} of the index.
*/
public static final Setting<IndexMode> MODE = Setting.enumSetting(
IndexMode.class,
"index.mode",
IndexMode.STANDARD,
new Setting.Validator<>() {
@Override
public void validate(IndexMode value) {}
@Override
public void validate(IndexMode value, Map<Setting<?>, Object> settings) {
value.validateWithOtherSettings(settings);
}
@Override
public Iterator<Setting<?>> settings() {
return IndexMode.VALIDATE_WITH_SETTINGS.iterator();
}
},
Property.IndexScope,
Property.Final,
Property.ServerlessPublic
);
/**
* Legacy index setting, kept for 7.x BWC compatibility. This setting has no effect in 8.x. Do not use.
* TODO: Remove in 9.0
*/
@Deprecated
public static final Setting<Integer> MAX_ADJACENCY_MATRIX_FILTERS_SETTING = Setting.intSetting(
"index.max_adjacency_matrix_filters",
100,
2,
Property.Dynamic,
Property.IndexScope,
Property.IndexSettingDeprecatedInV7AndRemovedInV8
);
private final Index index;
private final IndexVersion version;
private final Logger logger;
private final String nodeName;
private final Settings nodeSettings;
private final int numberOfShards;
/**
* The {@link IndexMode "mode"} of the index.
*/
private final IndexMode mode;
/**
* The bounds for {@code @timestamp} on this index or
* {@code null} if there are no bounds.
*/
private volatile TimestampBounds timestampBounds;
// volatile fields are updated via #updateIndexMetadata(IndexMetadata) under lock
private volatile Settings settings;
private volatile IndexMetadata indexMetadata;
private volatile List<String> defaultFields;
private final boolean queryStringLenient;
private final boolean queryStringAnalyzeWildcard;
private final boolean queryStringAllowLeadingWildcard;
private final boolean defaultAllowUnmappedFields;
private volatile Translog.Durability durability;
private volatile TimeValue syncInterval;
private volatile TimeValue refreshInterval;
private final boolean fastRefresh;
private volatile ByteSizeValue flushThresholdSize;
private volatile TimeValue flushThresholdAge;
private volatile ByteSizeValue generationThresholdSize;
private volatile ByteSizeValue flushAfterMergeThresholdSize;
private final MergeSchedulerConfig mergeSchedulerConfig;
private final MergePolicyConfig mergePolicyConfig;
private final IndexSortConfig indexSortConfig;
private final IndexScopedSettings scopedSettings;
private long gcDeletesInMillis = DEFAULT_GC_DELETES.millis();
private final boolean softDeleteEnabled;
private volatile long softDeleteRetentionOperations;
private final boolean es87TSDBCodecEnabled;
private volatile long retentionLeaseMillis;
/**
* The maximum age of a retention lease before it is considered expired.
*
* @return the maximum age
*/
public long getRetentionLeaseMillis() {
return retentionLeaseMillis;
}
private void setRetentionLeaseMillis(final TimeValue retentionLease) {
this.retentionLeaseMillis = retentionLease.millis();
}
private volatile boolean warmerEnabled;
private volatile int maxResultWindow;
private volatile int maxInnerResultWindow;
private volatile int maxRescoreWindow;
private volatile int maxDocvalueFields;
private volatile int maxScriptFields;
private volatile int maxTokenCount;
private volatile int maxNgramDiff;
private volatile int maxShingleDiff;
private volatile TimeValue searchIdleAfter;
private volatile int maxAnalyzedOffset;
private volatile boolean weightMatchesEnabled;
private volatile int maxTermsCount;
private volatile String defaultPipeline;
private volatile String requiredPipeline;
private volatile boolean searchThrottled;
private volatile long mappingNestedFieldsLimit;
private volatile long mappingNestedDocsLimit;
private volatile long mappingTotalFieldsLimit;
private volatile boolean ignoreDynamicFieldsBeyondLimit;
private volatile long mappingDepthLimit;
private volatile long mappingFieldNameLengthLimit;
private volatile long mappingDimensionFieldsLimit;
/**
* The maximum number of refresh listeners allows on this shard.
*/
private volatile int maxRefreshListeners;
/**
* The maximum number of slices allowed in a scroll request.
*/
private volatile int maxSlicesPerScroll;
/**
* The maximum length of regex string allowed in a regexp query.
*/
private volatile int maxRegexLength;
private final IndexRouting indexRouting;
/**
* Returns the default search fields for this index.
*/
public List<String> getDefaultFields() {
return defaultFields;
}
private void setDefaultFields(List<String> defaultFields) {
this.defaultFields = defaultFields;
}
/**
* Returns <code>true</code> if query string parsing should be lenient. The default is <code>false</code>
*/
public boolean isQueryStringLenient() {
return queryStringLenient;
}
/**
* Returns <code>true</code> if the query string should analyze wildcards. The default is <code>false</code>
*/
public boolean isQueryStringAnalyzeWildcard() {
return queryStringAnalyzeWildcard;
}
/**
* Returns <code>true</code> if the query string parser should allow leading wildcards. The default is <code>true</code>
*/
public boolean isQueryStringAllowLeadingWildcard() {
return queryStringAllowLeadingWildcard;
}
/**
* Returns <code>true</code> if queries should be lenient about unmapped fields. The default is <code>true</code>
*/
public boolean isDefaultAllowUnmappedFields() {
return defaultAllowUnmappedFields;
}
/**
* Creates a new {@link IndexSettings} instance. The given node settings will be merged with the settings in the metadata
* while index level settings will overwrite node settings.
*
* @param indexMetadata the index metadata this settings object is associated with
* @param nodeSettings the nodes settings this index is allocated on.
*/
public IndexSettings(final IndexMetadata indexMetadata, final Settings nodeSettings) {
this(indexMetadata, nodeSettings, IndexScopedSettings.DEFAULT_SCOPED_SETTINGS);
}
/**
* Creates a new {@link IndexSettings} instance. The given node settings will be merged with the settings in the metadata
* while index level settings will overwrite node settings.
*
* @param indexMetadata the index metadata this settings object is associated with
* @param nodeSettings the nodes settings this index is allocated on.
*/
public IndexSettings(final IndexMetadata indexMetadata, final Settings nodeSettings, IndexScopedSettings indexScopedSettings) {
scopedSettings = indexScopedSettings.copy(nodeSettings, indexMetadata);
this.nodeSettings = nodeSettings;
this.settings = Settings.builder().put(nodeSettings).put(indexMetadata.getSettings()).build();
this.index = indexMetadata.getIndex();
version = SETTING_INDEX_VERSION_CREATED.get(settings);
logger = Loggers.getLogger(getClass(), index);
nodeName = Node.NODE_NAME_SETTING.get(settings);
this.indexMetadata = indexMetadata;
numberOfShards = settings.getAsInt(IndexMetadata.SETTING_NUMBER_OF_SHARDS, null);
mode = scopedSettings.get(MODE);
this.timestampBounds = mode.getTimestampBound(indexMetadata);
if (timestampBounds != null) {
scopedSettings.addSettingsUpdateConsumer(IndexSettings.TIME_SERIES_END_TIME, endTime -> {
this.timestampBounds = TimestampBounds.updateEndTime(this.timestampBounds, endTime);
});
}
this.searchThrottled = INDEX_SEARCH_THROTTLED.get(settings);
this.queryStringLenient = QUERY_STRING_LENIENT_SETTING.get(settings);
this.queryStringAnalyzeWildcard = QUERY_STRING_ANALYZE_WILDCARD.get(nodeSettings);
this.queryStringAllowLeadingWildcard = QUERY_STRING_ALLOW_LEADING_WILDCARD.get(nodeSettings);
this.defaultAllowUnmappedFields = scopedSettings.get(ALLOW_UNMAPPED);
this.durability = scopedSettings.get(INDEX_TRANSLOG_DURABILITY_SETTING);
defaultFields = scopedSettings.get(DEFAULT_FIELD_SETTING);
syncInterval = INDEX_TRANSLOG_SYNC_INTERVAL_SETTING.get(settings);
refreshInterval = scopedSettings.get(INDEX_REFRESH_INTERVAL_SETTING);
fastRefresh = scopedSettings.get(INDEX_FAST_REFRESH_SETTING);
if (fastRefresh) {
if (DiscoveryNode.isStateless(nodeSettings) == false) {
throw new IllegalArgumentException(INDEX_FAST_REFRESH_SETTING.getKey() + " is allowed only in stateless");
}
if (indexMetadata.isSystem() == false) {
throw new IllegalArgumentException(INDEX_FAST_REFRESH_SETTING.getKey() + " is allowed only for system indices");
}
}
flushThresholdSize = scopedSettings.get(INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING);
flushThresholdAge = scopedSettings.get(INDEX_TRANSLOG_FLUSH_THRESHOLD_AGE_SETTING);
generationThresholdSize = scopedSettings.get(INDEX_TRANSLOG_GENERATION_THRESHOLD_SIZE_SETTING);
flushAfterMergeThresholdSize = scopedSettings.get(INDEX_FLUSH_AFTER_MERGE_THRESHOLD_SIZE_SETTING);
mergeSchedulerConfig = new MergeSchedulerConfig(this);
gcDeletesInMillis = scopedSettings.get(INDEX_GC_DELETES_SETTING).getMillis();
softDeleteEnabled = scopedSettings.get(INDEX_SOFT_DELETES_SETTING);
assert softDeleteEnabled || version.before(IndexVersions.V_8_0_0) : "soft deletes must be enabled in version " + version;
softDeleteRetentionOperations = scopedSettings.get(INDEX_SOFT_DELETES_RETENTION_OPERATIONS_SETTING);
retentionLeaseMillis = scopedSettings.get(INDEX_SOFT_DELETES_RETENTION_LEASE_PERIOD_SETTING).millis();
warmerEnabled = scopedSettings.get(INDEX_WARMER_ENABLED_SETTING);
maxResultWindow = scopedSettings.get(MAX_RESULT_WINDOW_SETTING);
maxInnerResultWindow = scopedSettings.get(MAX_INNER_RESULT_WINDOW_SETTING);
maxRescoreWindow = scopedSettings.get(MAX_RESCORE_WINDOW_SETTING);
maxDocvalueFields = scopedSettings.get(MAX_DOCVALUE_FIELDS_SEARCH_SETTING);
maxScriptFields = scopedSettings.get(MAX_SCRIPT_FIELDS_SETTING);
maxTokenCount = scopedSettings.get(MAX_TOKEN_COUNT_SETTING);
maxNgramDiff = scopedSettings.get(MAX_NGRAM_DIFF_SETTING);
maxShingleDiff = scopedSettings.get(MAX_SHINGLE_DIFF_SETTING);
maxRefreshListeners = scopedSettings.get(MAX_REFRESH_LISTENERS_PER_SHARD);
maxSlicesPerScroll = scopedSettings.get(MAX_SLICES_PER_SCROLL);
maxAnalyzedOffset = scopedSettings.get(MAX_ANALYZED_OFFSET_SETTING);
weightMatchesEnabled = scopedSettings.get(WEIGHT_MATCHES_MODE_ENABLED_SETTING);
maxTermsCount = scopedSettings.get(MAX_TERMS_COUNT_SETTING);
maxRegexLength = scopedSettings.get(MAX_REGEX_LENGTH_SETTING);
this.mergePolicyConfig = new MergePolicyConfig(logger, this);
this.indexSortConfig = new IndexSortConfig(this);
searchIdleAfter = scopedSettings.get(INDEX_SEARCH_IDLE_AFTER);
defaultPipeline = scopedSettings.get(DEFAULT_PIPELINE);
mappingNestedFieldsLimit = scopedSettings.get(INDEX_MAPPING_NESTED_FIELDS_LIMIT_SETTING);
mappingNestedDocsLimit = scopedSettings.get(INDEX_MAPPING_NESTED_DOCS_LIMIT_SETTING);
mappingTotalFieldsLimit = scopedSettings.get(INDEX_MAPPING_TOTAL_FIELDS_LIMIT_SETTING);
ignoreDynamicFieldsBeyondLimit = scopedSettings.get(INDEX_MAPPING_IGNORE_DYNAMIC_BEYOND_LIMIT_SETTING);
mappingDepthLimit = scopedSettings.get(INDEX_MAPPING_DEPTH_LIMIT_SETTING);
mappingFieldNameLengthLimit = scopedSettings.get(INDEX_MAPPING_FIELD_NAME_LENGTH_LIMIT_SETTING);
mappingDimensionFieldsLimit = scopedSettings.get(INDEX_MAPPING_DIMENSION_FIELDS_LIMIT_SETTING);
indexRouting = IndexRouting.fromIndexMetadata(indexMetadata);
es87TSDBCodecEnabled = scopedSettings.get(TIME_SERIES_ES87TSDB_CODEC_ENABLED_SETTING);
scopedSettings.addSettingsUpdateConsumer(
MergePolicyConfig.INDEX_COMPOUND_FORMAT_SETTING,
mergePolicyConfig::setCompoundFormatThreshold
);
scopedSettings.addSettingsUpdateConsumer(MergePolicyConfig.INDEX_MERGE_POLICY_TYPE_SETTING, mergePolicyConfig::setMergePolicyType);
scopedSettings.addSettingsUpdateConsumer(
MergePolicyConfig.INDEX_MERGE_POLICY_DELETES_PCT_ALLOWED_SETTING,
mergePolicyConfig::setDeletesPctAllowed
);
scopedSettings.addSettingsUpdateConsumer(
MergePolicyConfig.INDEX_MERGE_POLICY_EXPUNGE_DELETES_ALLOWED_SETTING,
mergePolicyConfig::setExpungeDeletesAllowed
);
scopedSettings.addSettingsUpdateConsumer(
MergePolicyConfig.INDEX_MERGE_POLICY_FLOOR_SEGMENT_SETTING,
mergePolicyConfig::setFloorSegmentSetting
);
scopedSettings.addSettingsUpdateConsumer(
MergePolicyConfig.INDEX_MERGE_POLICY_MAX_MERGE_AT_ONCE_SETTING,
mergePolicyConfig::setMaxMergesAtOnce
);
scopedSettings.addSettingsUpdateConsumer(MergePolicyConfig.INDEX_MERGE_POLICY_MAX_MERGE_AT_ONCE_EXPLICIT_SETTING, ignored -> {});
scopedSettings.addSettingsUpdateConsumer(
MergePolicyConfig.INDEX_MERGE_POLICY_MAX_MERGED_SEGMENT_SETTING,
mergePolicyConfig::setMaxMergedSegment
);
scopedSettings.addSettingsUpdateConsumer(
MergePolicyConfig.INDEX_MERGE_POLICY_SEGMENTS_PER_TIER_SETTING,
mergePolicyConfig::setSegmentsPerTier
);
scopedSettings.addSettingsUpdateConsumer(
MergePolicyConfig.INDEX_MERGE_POLICY_MERGE_FACTOR_SETTING,
mergePolicyConfig::setMergeFactor
);
scopedSettings.addSettingsUpdateConsumer(
MergeSchedulerConfig.MAX_THREAD_COUNT_SETTING,
MergeSchedulerConfig.MAX_MERGE_COUNT_SETTING,
mergeSchedulerConfig::setMaxThreadAndMergeCount
);
scopedSettings.addSettingsUpdateConsumer(MergeSchedulerConfig.AUTO_THROTTLE_SETTING, mergeSchedulerConfig::setAutoThrottle);
scopedSettings.addSettingsUpdateConsumer(INDEX_TRANSLOG_DURABILITY_SETTING, this::setTranslogDurability);
scopedSettings.addSettingsUpdateConsumer(INDEX_TRANSLOG_SYNC_INTERVAL_SETTING, this::setTranslogSyncInterval);
scopedSettings.addSettingsUpdateConsumer(MAX_RESULT_WINDOW_SETTING, this::setMaxResultWindow);
scopedSettings.addSettingsUpdateConsumer(MAX_INNER_RESULT_WINDOW_SETTING, this::setMaxInnerResultWindow);
scopedSettings.addSettingsUpdateConsumer(MAX_RESCORE_WINDOW_SETTING, this::setMaxRescoreWindow);
scopedSettings.addSettingsUpdateConsumer(MAX_DOCVALUE_FIELDS_SEARCH_SETTING, this::setMaxDocvalueFields);
scopedSettings.addSettingsUpdateConsumer(MAX_SCRIPT_FIELDS_SETTING, this::setMaxScriptFields);
scopedSettings.addSettingsUpdateConsumer(MAX_TOKEN_COUNT_SETTING, this::setMaxTokenCount);
scopedSettings.addSettingsUpdateConsumer(MAX_NGRAM_DIFF_SETTING, this::setMaxNgramDiff);
scopedSettings.addSettingsUpdateConsumer(MAX_SHINGLE_DIFF_SETTING, this::setMaxShingleDiff);
scopedSettings.addSettingsUpdateConsumer(INDEX_WARMER_ENABLED_SETTING, this::setEnableWarmer);
scopedSettings.addSettingsUpdateConsumer(INDEX_GC_DELETES_SETTING, this::setGCDeletes);
scopedSettings.addSettingsUpdateConsumer(INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING, this::setTranslogFlushThresholdSize);
scopedSettings.addSettingsUpdateConsumer(INDEX_TRANSLOG_FLUSH_THRESHOLD_AGE_SETTING, this::setTranslogFlushThresholdAge);
scopedSettings.addSettingsUpdateConsumer(INDEX_FLUSH_AFTER_MERGE_THRESHOLD_SIZE_SETTING, this::setFlushAfterMergeThresholdSize);
scopedSettings.addSettingsUpdateConsumer(INDEX_TRANSLOG_GENERATION_THRESHOLD_SIZE_SETTING, this::setGenerationThresholdSize);
scopedSettings.addSettingsUpdateConsumer(INDEX_REFRESH_INTERVAL_SETTING, this::setRefreshInterval);
scopedSettings.addSettingsUpdateConsumer(MAX_REFRESH_LISTENERS_PER_SHARD, this::setMaxRefreshListeners);
scopedSettings.addSettingsUpdateConsumer(MAX_ANALYZED_OFFSET_SETTING, this::setHighlightMaxAnalyzedOffset);
scopedSettings.addSettingsUpdateConsumer(WEIGHT_MATCHES_MODE_ENABLED_SETTING, this::setWeightMatchesEnabled);
scopedSettings.addSettingsUpdateConsumer(MAX_TERMS_COUNT_SETTING, this::setMaxTermsCount);
scopedSettings.addSettingsUpdateConsumer(MAX_SLICES_PER_SCROLL, this::setMaxSlicesPerScroll);
scopedSettings.addSettingsUpdateConsumer(DEFAULT_FIELD_SETTING, this::setDefaultFields);
scopedSettings.addSettingsUpdateConsumer(INDEX_SEARCH_IDLE_AFTER, this::setSearchIdleAfter);
scopedSettings.addSettingsUpdateConsumer(MAX_REGEX_LENGTH_SETTING, this::setMaxRegexLength);
scopedSettings.addSettingsUpdateConsumer(DEFAULT_PIPELINE, this::setDefaultPipeline);
scopedSettings.addSettingsUpdateConsumer(FINAL_PIPELINE, this::setRequiredPipeline);
scopedSettings.addSettingsUpdateConsumer(INDEX_SOFT_DELETES_RETENTION_OPERATIONS_SETTING, this::setSoftDeleteRetentionOperations);
scopedSettings.addSettingsUpdateConsumer(INDEX_SEARCH_THROTTLED, this::setSearchThrottled);
scopedSettings.addSettingsUpdateConsumer(INDEX_SOFT_DELETES_RETENTION_LEASE_PERIOD_SETTING, this::setRetentionLeaseMillis);
scopedSettings.addSettingsUpdateConsumer(INDEX_MAPPING_NESTED_FIELDS_LIMIT_SETTING, this::setMappingNestedFieldsLimit);
scopedSettings.addSettingsUpdateConsumer(INDEX_MAPPING_NESTED_DOCS_LIMIT_SETTING, this::setMappingNestedDocsLimit);
scopedSettings.addSettingsUpdateConsumer(
INDEX_MAPPING_IGNORE_DYNAMIC_BEYOND_LIMIT_SETTING,
this::setIgnoreDynamicFieldsBeyondLimit
);
scopedSettings.addSettingsUpdateConsumer(INDEX_MAPPING_TOTAL_FIELDS_LIMIT_SETTING, this::setMappingTotalFieldsLimit);
scopedSettings.addSettingsUpdateConsumer(INDEX_MAPPING_DEPTH_LIMIT_SETTING, this::setMappingDepthLimit);
scopedSettings.addSettingsUpdateConsumer(INDEX_MAPPING_FIELD_NAME_LENGTH_LIMIT_SETTING, this::setMappingFieldNameLengthLimit);
scopedSettings.addSettingsUpdateConsumer(INDEX_MAPPING_DIMENSION_FIELDS_LIMIT_SETTING, this::setMappingDimensionFieldsLimit);
}
private void setSearchIdleAfter(TimeValue searchIdleAfter) {
this.searchIdleAfter = searchIdleAfter;
}
private void setTranslogFlushThresholdSize(ByteSizeValue byteSizeValue) {
this.flushThresholdSize = byteSizeValue;
}
private void setTranslogFlushThresholdAge(TimeValue timeValue) {