8a05701cc4
This PR updates some remaining obsolete variables and mentions of ESS/Elasticsearch Service that should now refer to Elastic Cloud Hosted. Note: There are still a few valid references to the Elasticsearch service, not to be mixed with the cloud offering bearing the same name.
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APM settings in Kibana [apm-settings-kb]
These settings allow the APM app to function, and specify the data that it surfaces. Unless you’ve customized your setup, you do not need to configure any settings to use the APM app. It is enabled by default.
:::{note}
If a setting is applicable to {{ech}} environments, its name is followed by this icon: 
:::
APM indices [apm-indices-settings-kb]
The APM app uses data views to query APM indices. To change the default APM indices that the APM app queries, open the APM app and select Settings > Indices. Index settings in the APM app take precedence over those set in kibana.yml.
APM indices are {{kib}} space-aware; changes to APM index settings will only apply to the currently enabled space.
General APM settings [general-apm-settings-kb]
If you’d like to change any of the default values, copy and paste the relevant settings into your kibana.yml configuration file. Changing these settings may disable features of the APM App.
::::{tip} More settings are available in the Observability advanced settings. ::::
xpack.apm.maxSuggestions- Maximum number of suggestions fetched in autocomplete selection boxes. Defaults to
100. xpack.apm.serviceMapFingerprintBucketSize- Maximum number of unique transaction combinations sampled for generating service map focused on a specific service. Defaults to
100. xpack.apm.serviceMapFingerprintGlobalBucketSize- Maximum number of unique transaction combinations sampled for generating the global service map. Defaults to
100. xpack.apm.serviceMapEnabled- Set to
falseto disable service maps. Defaults totrue. xpack.apm.serviceMapTraceIdBucketSize- Maximum number of trace IDs sampled for generating service map focused on a specific service. Defaults to
65. xpack.apm.serviceMapTraceIdGlobalBucketSize- Maximum number of trace IDs sampled for generating the global service map. Defaults to
6. xpack.apm.serviceMapMaxTracesPerRequest- Maximum number of traces per request for generating the global service map. Defaults to
50. xpack.apm.ui.enabled- Set to
falseto hide the APM app from the main menu. Defaults totrue. xpack.apm.ui.maxTraceItems- Maximum number of child items displayed when viewing trace details. Defaults to
5000. xpack.observability.annotations.index- Index name where Observability annotations are stored. Defaults to
observability-annotations. xpack.apm.metricsInterval- Sets a
fixed_intervalfor date histograms in metrics aggregations. Defaults to30. xpack.apm.agent.migrations.enabled- Set to
falseto disable cloud APM migrations. Defaults totrue. xpack.apm.indices.error- Matcher for all error indices. Defaults to
logs-apm*,apm-*,traces-*.otel-*. xpack.apm.indices.onboarding- Matcher for all onboarding indices. Defaults to
apm-*. xpack.apm.indices.span- Matcher for all span indices. Defaults to
traces-apm*,apm-*,traces-*.otel-*. xpack.apm.indices.transaction- Matcher for all transaction indices. Defaults to
traces-apm*,apm-*,traces-*.otel-*. xpack.apm.indices.metric- Matcher for all metrics indices. Defaults to
metrics-apm*,apm-*,metrics-*.otel-*. xpack.apm.indices.sourcemap- Matcher for all source map indices. Defaults to
apm-*. xpack.apm.autoCreateApmDataView- Set to
falseto disable the automatic creation of the APM data view when the APM app is opened. Defaults totrue. xpack.apm.latestAgentVersionsUrl- Specifies the URL of a self hosted file that contains latest agent versions. Defaults to
https://apm-agent-versions.elastic.co/versions.json. Set to''to disable requesting latest agent versions.
Logging settings [logging-settings]
The following APM logging (legacy) settings are a subset of the valid settings:
logging.level- Specifies the minimum log level. One of debug, info, warning, or error. Defaults to info.
logging.selectors- The list of debugging-only selector tags used by different APM Server components. Use * to enable debug output for all components. For example, add publish to display all the debug messages related to event publishing.
logging.metrics.enabled- If enabled, APM Server periodically logs its internal metrics that have changed in the last period. Defaults to true.
logging.metrics.period- The period after which to log the internal metrics. Defaults to 30s.