8 Options for capturing Java Thread Dumps

-

8 Options for capturing Java Thread Dumps

Thread dumps are used to check CPU spikes, deadlocks, memory problems, unresponsive applications, poor responsive times and other system problems.

jstack
Kill -3
JVisualVM
JMC
Windows(Ctrl - Break)
ThreadMXBEan
APM Tool - APP Dynamics
JCMD

For more info, visit https://dzone.com/articles/how-to-take-thread-dumps-7-options

Comments

Post a Comment

Popular posts from this blog

Bash - Execute Pl/Sql script from Shell script

-
Hi, I am Malathi Boggavarapu working at Volvo Group and i live in Gothenburg, Sweden. I have been working on Java since several years and had vast experience and knowledge across various technologies. In this post we see how to build a bash script which executes pl/sql script, retrieve data and send it to graphite server using NetCat. We also go through various basic bash commands such as do/while, nc and also we use bash functions too. NetCat is used to connect to the servers and stream out the data to them. You can visit wiki to get basic understanding about it.  https://en.wikipedia.org/wiki/Netcat To understand what graphite is visit the following link https://graphiteapp.org/ Now let's start with pl/sql script to retrieve data inorder to send it to graphite server. Pl/sql script A table holds the size of each table exists in the database every 24hrs. The query is to get the latest record of each table and it's size and some other columns too.
Read more

How to get client Ip Address using Java HttpServletRequest

-
Hi, I am Malathi Boggavarapu working at Volvo Group and i live in Gothenburg, Sweden. I have been working on Java since several years and had vast experience and knowledge across various technologies. In this post we will see how to get IP address from HttpServletRequest.  For the web application which is not running behind the proxy server, we can directly get from the  HttpServletRequest  request object as below remoteAdr = request.getRemoteAddr(); For suppose if your web application is behind a proxy server, load balancer or Cloudfare then you should get client Ip address using the Http request header  X-Forwarded-For  ( XFF) . See below. private String getIpAddress(HttpServletRequest request) { String remoteAdr = "" ; if (request != null ){ remoteAdr = request.getHeader( "X-FORWADED-FOR" ); if (remoteAdr == null || "" .equals(remoteAdr)) { remoteAdr = request.getRemoteAddr();
Read more

How to install Portable JDK in Windows without Admin rights

-
Hi, I am Malathi Boggavarapu working at Volvo Group and i live in Gothenburg, Sweden. I have been working on Java since several years and had vast experience and knowledge across various technologies. Recently i came across the situation where i want to install JDK in the computer without having administrative privileges. Somehow i sought the problem out and want to share the steps that i have followed to do. Prerequisites - Download 7-Zip. Steps to install portable JDK without Administrative Privileges Step 1   Download latest version of JDK from Oracle website. Step 2   Select the downloaded JDK exe and right click on it. From the right click menu, choose 7-Zip ->     'Open archive' . Step 3   After the JDK archive is opened using 7-Zip, inside the folder .rsrc\1033\JAVA_CAB10\111 you        will find tools.zip file. Step 4   Extract tools.zip to your desired JDK directory. Ex: C:\Java\JDK Step 5  Now open windows command prompt
Read more