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Merge pull request #40084 from xenolinux/3096
OSDOCS3092: Add an overview page for logging
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logging/cluster-logging.adoc

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For information, see xref:../logging/cluster-logging-deploying.adoc#cluster-logging-deploying[Configuring the log collector].
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include::modules/cluster-logging-json-logging-about.adoc[leveloffset=+2]
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For information, see xref:../logging/cluster-logging.adoc#cluster-logging-json-logging-about_cluster-logging[About JSON Logging].
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include::modules/cluster-logging-collecting-storing-kubernetes-events.adoc[leveloffset=+2]
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For information, see xref:../logging/cluster-logging-eventrouter.adoc#cluster-logging-eventrouter[About collecting and storing Kubernetes events].
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include::modules/cluster-logging-update-logging.adoc[leveloffset=+2]
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For information, see xref:../logging/cluster-logging-upgrading.html#cluster-logging-upgrading[About updating {product-title} Logging].
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include::modules/cluster-logging-view-cluster-dashboards.adoc[leveloffset=+2]
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For information, see xref:../logging/cluster-logging-dashboards.adoc#cluster-logging-dashboards[About viewing the cluster dashboard].
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include::modules/cluster-logging-troubleshoot-logging.adoc[leveloffset=+2]
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include::modules/cluster-logging-Uninstall-logging.adoc[leveloffset=+2]
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For information, see xref:../logging/cluster-logging-uninstall.adoc#cluster-logging-uninstall[About uninstalling {product-title} Logging].
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include::modules/cluster-logging-export-fields.adoc[leveloffset=+2]
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For information, see xref:../logging/cluster-logging-exported-fields.adoc#cluster-logging-exported-fields[About exporting fields].
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include::modules/cluster-logging-about-components.adoc[leveloffset=+2]
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include::modules/cluster-logging-about-collector.adoc[leveloffset=+2]
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// Module included in the following assemblies:
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//
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// * logging/cluster-logging.adoc
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[id="cluster-logging-uninstall-logging-about_{context}"]
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= About uninstalling {product-title} Logging
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You can stop log aggregation by deleting the ClusterLogging custom resource (CR). After deleting the CR, there are other cluster logging components that remain, which you can optionally remove.
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// Module included in the following assemblies:
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//
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// * logging/cluster-logging.adoc
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[id="cluster-logging-collecting-storing-kubernetes-events-about_{context}"]
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= About collecting and storing Kubernetes events
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The {product-title} Event Router is a pod that watches Kubernetes events and logs them for collection by {product-title} Logging. You must manually deploy the Event Router.
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// Module included in the following assemblies:
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//
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// * logging/cluster-logging.adoc
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[id="cluster-logging-export-fields-about_{context}"]
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= About exporting fields
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The logging system exports fields. Exported fields are present in the log records and are available for searching from Elasticsearch and Kibana.
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// Module included in the following assemblies:
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//
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// * logging/cluster-logging.adoc
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[id="cluster-logging-json-logging-about_{context}"]
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= About JSON {product-title} Logging
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You can use JSON logging to configure the Log Forwarding API to parse JSON strings into a structured object. You can perform the following tasks:
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* Parse JSON logs
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* Configure JSON log data for Elasticsearch
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* Forward JSON logs to the Elasticsearch log store
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// Module included in the following assemblies:
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//
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// * logging/cluster-logging.adoc
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[id="cluster-logging-troubleshoot-logging-about_{context}"]
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= About troubleshooting {product-title} Logging
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You can troubleshoot the logging issues by performing the following tasks:
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* Viewing logging status
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* Viewing the status of the log store
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* Understanding logging alerts
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* Collecting logging data for Red Hat Support
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* Troubleshooting for critical alerts
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// Module included in the following assemblies:
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//
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// * logging/cluster-logging.adoc
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[id="cluster-logging-update-logging-about_{context}"]
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= About updating {product-title} Logging
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{product-title} allows you to update {product-title} logging. You must update the following operators while updating {product-title} Logging:
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* Elasticsearch Operator
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* Cluster Logging Operator
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// Module included in the following assemblies:
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//
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// * logging/cluster-logging.adoc
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[id="cluster-logging-view-cluster-dashboards-about_{context}"]
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= About viewing the cluster dashboard
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The {product-title} Logging dashboard contains charts that show details about your Elasticsearch instance at the cluster level. These charts help you diagnose and anticipate problems.

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