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The EMT, also known as Tomcat, service shows that it is running, but port 8543 is not listening for connections. This causes issues with functions such as: Proxy deployment manager Snapshot manager RabbitMQ DTLT Topology manager Connection manager Restarting Tomcat, as shown below, does not resolve the behavior. emwebapp . sh --stop emwebapp . sh --start Using the curl command shows that port 8543 is not listening and reports "connection refused": admin@ave:/home/admin/>: curl -v localhost:8543 * About to connect() to localhost port 8543 (#0) * Trying ::1... Connection refused * Trying 127.0.0.1... Connection refused * couldn't connect to host * Closing connection #0 curl: (7) couldn't connect to host The mcserver.log files ( /usr/local/avamar/var/mc/server_log/mcserver.log.0* report Connection refused" to port 8543: WARNING: Failed (https : //localhost : 8543/deploymanager/auth/logout)(attempt 2 of 3): Connect to localhost:8543 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused (Connection refused) 11/04-20:11:37.00805 [RMI TCP Connection(1204)-10.80.209.10#9026] com.avamar.mc.pdm.ProxyDeploymentManagerService.submitJsonWithRetry In this instance, the catalina.out log showed the following: 2022-11-08 20:41:13.866 ERROR 21323 --- [ost-startStop-1] o.s.boot.SpringApplication : Application run failedjava.io.FileNotFoundException: /home/admin/.keystore (Permission denied) The catalina.out log ( /usr/local/avamar-tomcat/logs/catalina.out ) contains everything that is written to Tomcat's system.out and system.err. The catalina.out file comes from the catalina . sh script that is conventionally used to launch Tomcat. Whenever Tomcat does not launch properly, or something is wrong with the Java implementation of Tomcat, catalina.out should be reviewed.
The cause in this instance was an Incorrect keystore ownership - the /home/admin/.keystore ownership was root:root, whereas from Avamar 19.4, it must be admin:admin .
To correct the onwership: 1. Log in to the Avamar Utility Node as admin. 2. Elevate to root privilege. 3. Update the tomcat keystore ownership to admin:admin chown admin:admin /home/admin/.keystore 4. Restart tomcat: emwebapp . sh --restart 5. Verify that port 8543 is listening: netstat -anp | grep 8543
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