I was discussing with one of my friend who is a Developer, as he was working with PostgreSQL 9.5 in Ubuntu 16.04LTS from past few months. But suddenly he couldn’t able to start PostgreSQL service. He tried to reinstall PostgreSQL many times, but no luck. So he gave his laptop to me and asked to fix this issue.(Because of Im a DBA 🙂 ). The very first thing I started to look at the Postgresql logs. Unfortunately, nothing was there. So I checked the syslog file and found something wrong. It was showing the error in Postgrsql Insecure directory in env path.
Hello SQL DBAs, the time has been already arrived to move to the Open Source Community. After a very long time, Microsoft Released the stable version of SQL Server for Linux. Also, Microsoft provides perfect documentation to configure everything. So we(DBAs) needs to work on SQL server in Linux. So this blog post is nothing but will provide some useful information to handling DBA tasks in SQL Server on Linux.
While reading this heading everybody things like, yeah its pretty old topic, we can get many articles by googling. But you know what sometimes well known things never work for us. This time it happened for me, my bad. I have done this many times. But most of us changed the default Data Directory only. Only a few of us thinking about change MySQL default data,binlog, error log directories.
Before start my story, I need to tell this, I’m not an Oracle guy. But as a DBA I had few situation to install Oracle on Amazon Linux. In many blogs, we can get the steps to install in CentOS and RedHat, but my bad I couldn’t find any blogs for Amazon Linux. After read many blogs I got the procedure to install it, and the more important thing is we can use the same step to Amazon Linux, CentOS and RedHat without any changes. But while follow this process some files are not available to edit in Amazon Linux, so please ignore them.
I had a chance to map Linux users to Postgres. Recently I have started to understand the PostgreSQL’s internal processing. One of the topics explained about the pg_ident.conf file. Till that time I never used that file, even I didn’t hear about that. Basically, this file will help you to connect with PostgreSQL from any System users. I have configured everything to connect PostgreSQL from root user, but still, couldn’t able to connect. Because I used psql command to connect.