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1function m(e){let{components:t,...r}=e;return(0,n.kt)(u,(0,a.Z)({},c,r,{components:t,mdxType:"MDXLayout"}),(0,n.kt)("p",null,"Trace Sampling lets you select which traces to index and monitor within your account, helping you focus on real-time events in your systems and services. Applying Drop Filters also optimizes quota usage by indexing only critical and actionable spans or full traces."),(0,n.kt)("h2",{id:"trace-sampling-overview"},"Trace Sampling overview"),(0,n.kt)("p",null,"The Sampling Rules screen includes the following:"),(0,n.kt)("ul",null,(0,n.kt)("li",{parentName:"ul"},(0,n.kt)("p",{parentName:"li"},(0,n.kt)("strong",{parentName:"p"},"Account Selection")," - Choose the Tracing accounts where you'd like to create and apply Drop Filters. Each account requires a separate set of rules.")),(0,n.kt)("li",{parentName:"ul"},(0,n.kt)("p",{parentName:"li"},(0,n.kt)("strong",{parentName:"p"},"Main Table")," - Displays your sampling rules, including descriptions and the services they apply to. If no services are listed, the rule applies to all spans."))),(0,n.kt)("p",null,(0,n.kt)("img",{parentName:"p",src:"https://dytvr9ot2sszz.cloudfront.net/logz-docs/distributed-tracing/sampling-rules/sampling-rules.png",alt:"Sampling rules overview"})),(0,n.kt)("h2",{id:"create-custom-trace-sampling-rules"},"Create Custom Trace Sampling Rules"),(0,n.kt)("admonition",{type:"tip"},(0,n.kt)("p",{parentName:"admonition"},"Creating individual rules for each tracing account allows for more precise span volume control.")),(0,n.kt)("p",null,"To create a rule, click ",(0,n.kt)("strong",{parentName:"p"},"New Rule")," at the top right. Then, select the services where this rule will apply. To manually add services, check ",(0,n.kt)("strong",{parentName:"p"},"These Services")," and choose from the dropdown menu."),(0,n.kt)("h3",{id:"sampling-actions"},"Sampling actions"),(0,n.kt)("p",null,"Each rule can have one of the following actions:"),(0,n.kt)("ul",null,(0,n.kt)("li",{parentName:"ul"},"Keep a percentage of traces (choose a value from 1-100)."),(0,n.kt)("li",{parentName:"ul"},"Keep traces slower than a specified duration (must exceed 1 ms)."),(0,n.kt)("li",{parentName:"ul"},"Keep all traces with span errors to focus on identifying issues.")),(0,n.kt)("p",null,(0,n.kt)("img",{parentName:"p",src:"https://dytvr9ot2sszz.cloudfront.net/logz-docs/distributed-tracing/sampling-rules/create-a-rule.png",alt:"Create a sampling rule"})),(0,n.kt)("p",null,"While each rule can have only one action, you can create multiple rules for the same services. For example:"),(0,n.kt)("ul",null,(0,n.kt)("li",{parentName:"ul"},"Sample all traces with spans containing errors."),(0,n.kt)("li",{parentName:"ul"},"Sample traces slower than 2000 ms."),(0,n.kt)("li",{parentName:"ul"},"Sample 50% of traces."),(0,n.kt)("li",{parentName:"ul"},"Sample all traces from a critical service.")),(0,n.kt)("admonition",{title:"Important",type:"caution"},(0,n.kt)("p",{parentName:"admonition"},"To ",(0,n.kt)("strong",{parentName:"p"},"activate the new set of rules"),", navigate to the ",(0,n.kt)("a",{parentName:"p",href:"https://app.logz.io/#/dashboard/settings/tracing-yaml-configuration/"},"YAML Configuration Generator")," and follow the instructions.\n",(0,n.kt)("img",{parentName:"p",src:"https://dytvr9ot2sszz.cloudfront.net/logz-docs/distributed-tracing/sampling-rules/click-on-yaml.png",alt:"Yaml configuration"}))),(0,n.kt)("h2",{id:"configure-and-apply-trace-sampling-rules"},"Configure and apply Trace Sampling rules"),(0,n.kt)("p",null,"Start by creating your sampling rules for the chosen account."),(0,n.kt)("p",null,"Configure them using the OTEL Configuration Generator, which creates a YAML file for your collector to run the rules."),(0,n.kt)("p",null,"Access the generator by clicking the button at the top right or navigating to ",(0,n.kt)("strong",{parentName:"p"},(0,n.kt)("a",{parentName:"strong",href:"https://app.logz.io/#/dashboard/settings/tracing-yaml-configuration/"},"Tracing > OTEL configuration")),". "),(0,n.kt)("p",null,"Select your configuration method based on your OTEL deployment strategy (currently supports Localhost; Docker and Kubernetes support is coming soon)."),(0,n.kt)("p",null,"After selecting the Tracing account, follow the instructions to apply your rules to the collector."),(0,n.kt)("p",null,(0,n.kt)("img",{parentName:"p",src:"https://dytvr9ot2sszz.cloudfront.net/logz-docs/distributed-tracing/sampling-rules/otel-configuration-screen.png",alt:"Create a sampling rule"})))}m.isMDXComponent=!0}}]);
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