This post demonstrates how to delete documents from an Index in Elasticsearch, that meet you search criteria of a query. You may have situations, that you are reporting to a wrong index. Therefore this post gives you an solution how you can clean up your index.
This post demonstrates how to install elasticsearch or kibana plugins behind a proxy. There are several possibilities to achieve an online or offline installation. Following example installs the delete-by-query plugin for elasticsearch v 2.2. It is a great improvement to the previous buggy and non performant implementation. elastic has remove it from the elasticsearch core.
This post demonstrates how to remove log handlers at runtime in JBoss EAP 6.4.4 or Wildfly.
MobaXterm is also a more convenient ssh client like putty. Session management in the professional version is very handy. Since MobaXterm comes with cygwin, ssh is also available in the local terminal. To eliminate the hassle for entering the password (especially if security compliance requires you to change the password every month), ssh keys are a more secure and convenient method for authentication on servers. This post illustrates how you do it with MobaXterm.
If you deal with Apache Tomcat and legacy applications, you might need to know which current version matches which JSP or Servlet specification.
Sometimes the rpmdb checksum is invalid. To fix that I have created a simple function in bash script that reads the input from stdin. If yes in any kind or y ignore case is entered, the rpmdb will be rebuild and we clean the local yum cache.
This blog post demonstrates a small example how helpful netstat can be. netstat is capable to display all used ports of the user processes.
This post demonstrates you how you can set the defined log levels of log categories (e.g. classname) and of the root logger in the standalone.xml. Same applies to the domain mode. Just add the profile name before the cli command. It was very useful, to correct the verbose output of a running application in production.
As a special daily deal I bought the Kingston SSDNow V300 240 GB for my linux notebook, Lenovo Thinkpad Edge S430. This post is going to illustrate the differences and performance gain due to the upgrade.