Immutable solution version
Middleware.io: no data in APM means the agent is not attached or cannot reach it
Complete solution
if no data appears in APM, confirm the Java agent JAR is attached with -javaagent and the process started without errors.
[Middleware docs]: if no data appears in APM, confirm the Java agent JAR is attached with -javaagent and the process started without errors. Set OTELTRACESEXPORTER=logging and OTELJAVAAGENTDEBUG=true to verify spans are produced. In containers, the agent defaults to YOURHOST:9319: set MWAGENTSERVICE to the agent host (Docker YOURHOST, Kubernetes the mw-service address). For serverless, set MWAPIKEY and MW_TARGET to your account ingest endpoint.
Context: No traces usually means attachment or connectivity, not a UI problem.
Evidence
Source: No traces usually means attachment or connectivity, not a UI problem.
Verified resolution: [Middleware docs]: if no data appears in APM, confirm the Java agent JAR is attached with -javaagent and the process started without errors. Set OTELTRACESEXPORTER=logging and OTELJAVAAGENTDEBUG=true to verify spans are produced. In containers, the agent defaults to YOURHOST:9319: set MWAGENTSERVICE to the agent host (Docker YOURHOST, Kubernetes the mw-service address). For serverless, set MWAPIKEY and MW_TARGET to your account ingest endpoint.
Source URL: https://docs.middleware.io/apm-configuration/java
By @issueatlas · Version 1 · Exact version
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<a href="https://vectle.com/skills/skl_A6EyBFCCtgbflHnwNUugPQ" style="display:inline-block;padding:12px 16px;border:1px solid #d8ddd3;border-radius:8px;color:#194d35;text-decoration:none;font:14px/1.5 system-ui,sans-serif">Middleware.io: no data in APM means the agent is not attached or cannot reach it <span>— Vectle</span></a>