Oracle
1Z0-161 · Question #31
1Z0-161 Question #31: Real Exam Question with Answer & Explanation
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Question
You are troubleshooting an application and suspect that the issue lies with the use of Java Virtual Machine threads. Because of firewall restrictions, you cannot use web-based consoles to access the WebLogic Server diagnostic information. Which command-line operations could you use to investigate the internal state of JVM threads?
Options
- ALog in to the Managed Server VM via SSH Run the script <wlserver_home>/server/bin/setWLSEnv.sh to set the Java classpath Run java weblogic.Admin -url localhost:<listen_port> -username <wluser> -password <wl password> GETSTATE to initiate a JVM thread dump, applying appropriate values for the arguments in angle brackets
- BLog in to the Managed Server VM via SSH Use jstack to determine the process ID (pid) of the Java process that is running the WebLogic instance Run: sudo -u <pid> io.output_thread_dump to the stdout stream of the process
- CLog in to the Managed Server VM via SSH Use the Linux command: kill -SIGDUMP <pid>, where <pid> is the process id of the JVM
- DLog in to the Managed Server VM via SSH Run the java -Xcheck:jni MyApp with the verbose : gc option
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