Application support interview questions for freshers

How do you monitor your logs while investigating a high severity problem?

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Have you done any sort of automation in your system monitoring tasks? Yes we have created System as well as Log monitoring scripts to keep track of exceptions. We are also using a tool that will inform the stake holders if an exceptional event occurs with the system.

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What all caching has been used in your application? We are using Akamai as web server cache.


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Have you ever faced any problem due to caching? Yes , sometime we receive issues related to outdated pages being rendered to the user. In those cases we clear the cache and then try to investigate the reason for that. In those cases we reduce the cache refresh interval.

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What if the issue is related to Database server? We involve DBA and try to solve it through them. By the time they are solving it , we keep the stake holders informed regarding the progress. Do you use command aliases while doing your work? What are your responsibilities after the ticket has been closed? We inform the stakeholders regarding the resolution and steps taken for it. RCA is done for the high priority and critical issues and a report is submitted. These are parameters to specify heap size in Java.

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The -Xms defines the size of the heap when JVM starts up and -Xmx is used to specify the maximum heap size for Java application i. You install JRE to run Java application e.


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    7. Applet or Core Java application or Web server like Tomcat. There is some threshold set if a code runs more than the threshold it becomes the candidate of just in time compilation by JIT. There are many ways to take the heap dump of a Java process e.

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    Tomcat, but most common is by using tools available in JDK e. Remember, you also need PID of Java process which you can find by using "ps" and "grep" command as discussed in the first question.

    You can see Java Performance Companion by Charlie Hunt to learn more about taking and analyzing heap dump in Java to find memory leak and other memory related errors. Posted by javin paul Email This BlogThis!


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      7. Anonymous November 7, at PM.