Sarav is the creator and Founding Author of Devops Junction. He has 13+ years of experience in Software Development and Architecture. He has written around 250+ articles on various technologies.
In Ansible, SSH Communication is everything. Let it be connecting to remote servers from your controller laptop/desktop (mac/windows) or to enable connectivity between servers on the host group. Especially this will be a huge task to accomplish when you do not have a DNS where each remote host can easily[...]
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The Objective In this post, we are going to share the WLST jython script we have created to start all the managed servers in the weblogic domain. To be more precise, The Script will start the servers which are not already started or down from the specific weblogic domain. Once[...]
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The Objective The post is about how to do Weblogic Active Grid Link Data source creation using WLST. We are giving WLST script here to accomplish the same. It has some nice features like Duplicate Validation Test Connection Database Credential validation Bulk Datasource creation. We hope you would find it[...]
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The Objective In this post, we will see the easiest way possible to decrypt the WebLogic admin server password. in other words, recovering WebLogic password. You do not need to create a JAR file or copy any security-related files etc. You do not even need your AdminServer to be running. Just[...]
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The Objective If you are a pioneer of Ansible, you might have come across or had this question "How to print a custom message with fail or failed_when" or "How to print a custom error message in case of failure" while running the ansible-playbook. What is so fun in displaying the built-in[...]
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The Objective The purpose of this post is to explain with an example of how ansible initiate the reboot and wait for the reboot to complete There are cases where we want our remote nodes to be rebooted or restarted. For example, Take the Patching as an example. As part[...]
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Introduction to Ansible wait_for module Ansible wait_for module can be used to pause your playbook execution and to wait for many different things or conditions before continuing with the execution. The wait_for module of ansible is to make your playbook or task execution halt or pause for various reasons and for[...]
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In this post, we are going to see how to upgrade the JDBC driver in WebLogic 12c and WebLogic 11g versions. We are going to take mysql as our database for this example, but the same process applies to the Oracle as well. The Context If you are here, I can[...]
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This post is to discuss about a particular Issue we often face in weblogic 12c and how to resolve the same The Issue While trying to create mysql Datasource in weblogic, the following exception occurs and unable Test Connection (or) Test Configuration fails. java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long<br/>com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1058)<br/>com.mysql.jdbc.SQLError.createSQLException(SQLError.java:972)<br/>com.mysql.jdbc.SQLError.createSQLException(SQLError.java:958)<br/>com.mysql.jdbc.SQLError.createSQLException(SQLError.java:903)<br/>com.mysql.jdbc.ConnectionImpl.buildCollationMapping(ConnectionImpl.java:1025)<br/>com.mysql.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:3480)<br/>com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2444)<br/>com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2214)<br/>com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:797)<br/>com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:31)<br/>sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native[...]
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The Objective In this post, we are going to see what are the different types of home directories available in weblogic and the various options or methods to find the ORACLE_HOME, MW_HOME and WL_HOME of your weblogic 12c installation. The commands and the methods are mostly given for the LINUX[...]
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