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Remove DOC_VALUES_SKIPPER feature flag - #138723

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romseygeek merged 36 commits into
elastic:mainfrom
romseygeek:skippers/remove-feature-flag
Dec 12, 2025
Merged

romseygeek merged 36 commits into
elastic:mainfrom
romseygeek:skippers/remove-feature-flag

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@romseygeek romseygeek commented Nov 27, 2025 •

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Removing this flag will enable skippers automatically on keyword, ip, boolean,
date and numeric fields that have index=false and doc_values=true when the
index.mapping.use_doc_values_skipper setting is true. In addition,
some fields in time_series mode will default to using doc values skippers in place
of points or terms indexes.

romseygeek and others added 17 commits November 24, 2025 17:25
This applies to boolean, date, ip, keyword and number-type fields
excluding scaled_float.  It can be disabled by setting the
`index.mapping.use_doc_value_skipper` field to `false`
…pperTestCase.java

Co-authored-by: Felix Barnsteiner <felixbarny@users.noreply.github.com>
…-false' into skippers/always-on-for-index-false
Removing this flag will enable skippers automatically on keyword, ip, boolean,
date and numeric fields that have index=false.  In addition, some fields in
time_series and logsdb modes will default to using doc values skippers in
place of points or terms indexes.
@romseygeek romseygeek self-assigned this Nov 27, 2025
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romseygeek requested a review from a team as a code owner November 27, 2025 11:14
@elasticsearchmachine elasticsearchmachine added needs:triage Requires assignment of a team area label v9.3.0 labels Nov 27, 2025
@romseygeek romseygeek added >feature release highlight :StorageEngine/Mapping The storage related side of mappings and removed needs:triage Requires assignment of a team area label labels Nov 27, 2025
@romseygeek
romseygeek requested review from kkrik-es and martijnvg and removed request for a team November 27, 2025 11:15
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Pinging @elastic/es-storage-engine (Team:StorageEngine)

Comment thread docs/changelog/138723.yaml Outdated
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I've added an IndexVersion for serverless, with changes to MapperTestCase.

@romseygeek
romseygeek requested a review from felixbarny December 1, 2025 11:00
assertThat(mapperService.fieldType("field").indexType(), equalTo(IndexType.docValuesOnly()));
}

Settings statelessSkipperDefault = Settings.builder().put(DiscoveryNode.STATELESS_ENABLED_SETTING_NAME, true).build();

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Suggested change
Settings statelessSkipperDefault = Settings.builder().put(DiscoveryNode.STATELESS_ENABLED_SETTING_NAME, true).build();
Settings statelessEnabled = Settings.builder().put(DiscoveryNode.STATELESS_ENABLED_SETTING_NAME, true).build();

Comment thread server/src/main/java/org/elasticsearch/index/IndexSettings.java Outdated
IndexVersion iv = SETTING_INDEX_VERSION_CREATED.get(s);
if (MODE.get(s) == IndexMode.TIME_SERIES) {
if (iv.onOrAfter(IndexVersions.SKIPPERS_ENABLED_BY_DEFAULT)) {
if (DiscoveryNode.isStateless(s)) {

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Maybe I forgot something, but host.name was the only field we accidentally enabled skippers for? This would enable skippers also for other fields in serverless?

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This part is for TSDB mode. host.name is handled entirely separately.

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LGTM 🚀

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>feature release highlight :StorageEngine/Mapping The storage related side of mappings Team:StorageEngine test-release Trigger CI checks against release build v9.3.0

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4 participants