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055c770083
This PR changes uses of transient cluster settings to persistent cluster settings. The PR also deprecates the transient settings usage. Relates to #49540
69 lines
2.1 KiB
Text
69 lines
2.1 KiB
Text
==== Request tracing
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You can trace individual requests made on the HTTP and transport layers.
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WARNING: Tracing can generate extremely high log volumes that can destabilize
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your cluster. Do not enable request tracing on busy or important clusters.
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[[http-rest-request-tracer]]
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===== REST request tracer
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The HTTP layer has a dedicated tracer that logs incoming requests and the
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corresponding outgoing responses. Activate the tracer by setting the level of
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the `org.elasticsearch.http.HttpTracer` logger to `TRACE`:
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[source,console]
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--------------------------------------------------
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PUT _cluster/settings
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{
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"persistent" : {
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"logger.org.elasticsearch.http.HttpTracer" : "TRACE"
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}
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}
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--------------------------------------------------
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You can also control which URIs will be traced, using a set of include and
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exclude wildcard patterns. By default every request will be traced.
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[source,console]
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--------------------------------------------------
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PUT _cluster/settings
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{
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"persistent" : {
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"http.tracer.include" : "*",
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"http.tracer.exclude" : ""
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}
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}
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--------------------------------------------------
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[[transport-tracer]]
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===== Transport tracer
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The transport layer has a dedicated tracer that logs incoming and outgoing
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requests and responses. Activate the tracer by setting the level of the
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`org.elasticsearch.transport.TransportService.tracer` logger to `TRACE`:
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[source,console]
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--------------------------------------------------
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PUT _cluster/settings
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{
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"persistent" : {
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"logger.org.elasticsearch.transport.TransportService.tracer" : "TRACE"
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}
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}
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--------------------------------------------------
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You can also control which actions will be traced, using a set of include and
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exclude wildcard patterns. By default every request will be traced except for
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fault detection pings:
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[source,console]
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--------------------------------------------------
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PUT _cluster/settings
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{
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"persistent" : {
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"transport.tracer.include" : "*",
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"transport.tracer.exclude" : "internal:coordination/fault_detection/*"
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}
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}
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--------------------------------------------------
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