{"id":20304,"date":"2021-01-10T10:07:13","date_gmt":"2021-01-10T10:07:13","guid":{"rendered":"http:\/\/www.devopsschool.com\/blog\/?p=20304"},"modified":"2023-11-08T07:15:20","modified_gmt":"2023-11-08T07:15:20","slug":"how-to-setup-datadog-apm-for-java-application-running-with-tomcat","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/how-to-setup-datadog-apm-for-java-application-running-with-tomcat\/","title":{"rendered":"How to setup Datadog APM for Java application running with Tomcat"},"content":{"rendered":"\n
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SOURCE FOR APM –<\/strong> https:\/\/docs.datadoghq.com\/tracing\/trace_collection\/?tab=containers<\/a><\/p>\n\n\n\n

This note is applicable for only Host Based APM.<\/p>\n\n\n\n

Step 1 – Install Datadog Agent in Centos<\/a> or Ubuntu<\/a> or Windows<\/a><\/h2>\n\n\n\n

Step 2 – Install Java Application<\/h2>\n\n\n
# Centos<\/span>\n$ yum install java-11<\/span>-openjdk-devel\n\nUbuntu\n$ sudo apt-get install openjdk-11<\/span>-jdk -y<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
Step 3 – Install and Run Apache Tomcat<\/h2>\n\n\n
# UBUNTU<\/span>\n$ sudo apt install wget unzip -y\n\n# Centos<\/span>\n$ sudo yum install wget unzip -y\n\n$ cd \/opt\n$ wget https:\/\/dlcdn.apache.org\/tomcat\/tomcat-9\/v9.0.65\/bin\/apache-tomcat-9.0.65.zip<\/span>\n$ unzip apache-tomcat-9.0<\/span>.65<\/span>.zip\n<\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
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Step 4 – Download dd-java-agent.jar into \/opt\/ and give permission.<\/h2>\n\n\n
$ cd \/opt\n$ wget -O dd-java-agent.jar 'https:\/\/dtdg.co\/latest-java-tracer'<\/span>\n$ chmod 777<\/span> dd-java-agent.jar <\/code><\/span>Code language:<\/span> JavaScript<\/span> (<\/span>javascript<\/span>)<\/span><\/small><\/pre>\n\n\n
Step 5 – Edit catalina.sh and following entry<\/h2>\n\n\n
$ vi \/opt\/apache-tomcat-9.0<\/span>.65<\/span>\/bin\/catalina.sh\n\n# Make sure dd.service and dd.env as per your choice.<\/span>\n\nCATALINA_OPTS=\"$CATALINA_OPTS -javaagent:\/opt\/dd-java-agent.jar -Ddd.profiling.enabled=true -Ddd.logs.injection=true -Ddd.trace.sample.rate=1 -Ddd.service=devopsschool -Ddd.env=prod -Ddd.version=1.1\"<\/span><\/code><\/span>Code language:<\/span> PHP<\/span> (<\/span>php<\/span>)<\/span><\/small><\/pre>\n\n\n
Step 6 – Start Tomcat and Datadog Agent<\/h2>\n\n\n
$ systemctl restart datadog-agent\n$ cd \/opt\/apache-tomcat-9.0.65\/bin\n$ chmod -R 775 .\n$ .\/startup.sh\n$ ps -eaf | grep tomcat | grep dd<\/code><\/span><\/pre>\n\n\n
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Step 7 – Generate Traffic using Jmeter on Multiple URL of Tomcat and Example Apps<\/h2>\n\n\n\n
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Step – 8 – Review the APM Results<\/h2>\n\n\n\n
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