Types of Performance Testing

Baseline Testing – Less users than we expect in production. This is like when manual testers perform a user scenario and use a stopwatch to time it. It could also be an automated load test where we are using less than the expected number of users to generate load. This will be normally done to […]

By |March 2nd, 2015|Categories: Software Testing|Tags: , , , |0 Comments

What’s the difference between stateful and stateless?

Stateless put simply means there is no memory of the past. The transaction operates unaware of what went before it, or what comes after it.

Stateful means that there is memory of the past. This is achieved by persisting ‘state’ data to a shared resource (e.g. database or session cookie).

Stateless processes are intended to support business […]

Delete Files Older than x Days on Linux

Objective:
To find the files which are older than X days in Linux Operating system. In this scenario, X is represented in hours. If you wish to delete the files older than 2 days, then X value should be 48.

Process:
Step 1: SSH to the server.
Step 2: Identify the target directory. eg: /u01/wiki/temp/

Step 3: Use following command […]

By |February 24th, 2015|Categories: Operating Systems, UNIX - LINUX|Tags: , , , , , |0 Comments

Analyzing Out-of-Memory Situations

Out Of Memory – Types, Causes, Analysis
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At any time the JVM may run out of memory, which effectively crashes the container and will require a restart to restore functionality. There are many causes for out of memory exceptions. From too small of a heap defined for the applications running in the container, a memory leak, […]

How to Check the Last Reboot Time on a Server?

There are a couple of ways to determine when the server has been last rebooted in Linux Operating System.

Option 1: Using “who” command.

 

Option 2: Using “uptime” command

 

Option 3: Using “last reboot” command

 

By |February 23rd, 2015|Categories: Operating Systems, UNIX - LINUX|Tags: , , , |0 Comments