Cheryl Lei Bryll

Senior Oracle DBA

Cheryl is a Senior Oracle DBA at XTIVIA. She has been working with Oracle technology for over 20 years. Having started her professional career in accounting she moved into IT as an Oracle developer for an ERP Software company in Clearwater FL. Where she then progressed as an Oracle developer for the Oracle EBS application. In her spare time, she taught the Oracle Developer OCP courses at an accredited college as an adjunct part time instructor for many years. Her career further progressed into the more technical side of Oracle as an Oracle EBS DBA and Core DBA. She has worked on Database platform migrations, High Availability implementations and upgrades of Databases and Oracle EBS R11 and R12 on various operating systems. As well as new implementations for R12.2 with RAC. Her skill set includes project planning, Oracle DR and High Availability Solutions, Patching and upgrade solutions, as well as daily DBA tasks to ensure optimal performance of the Oracle databases. When Cheryl isn’t working with Oracle technology projects she can be found on a trail or mountain somewhere training for another Ultramarathon running event.

keepalived daemon: The Secret Sauce to a HAProxy Dual Set Up

If you need a High Availability (HA) setup to balance connections to your MariaDB cluster nodes, you should consider using HAProxy. HAProxy set up in a dual configuration (primary and secondary) will further contribute to your redundant HA topology. This blog is... read more

MariaDB Galera Cluster WSREP_SST_METHOD Explained

This blog article will explain what the SST method choices are and what you need to consider when choosing one over another. To start with, the wsrep_sst_method is a configuration parameter used with Galera Clustering. This parameter tells the database server which... read more

How to Clone a MySQL Instance on the Same Server

In this tutorial, I will go over the steps to clone your MySQL instance on the same server. This tutorial will only cover the steps to accomplish a clone on a Linux server. To ensure you do not cause corruption to the existing MySQL instance you will need to ensure... read more

Common TNS Errors and How to Troubleshoot

In this blog, I will cover some typical TNS errors that we run across as an Oracle DBA and how to go about troubleshooting the errors. First of all, when you encounter a TNS error you need to understand that it relates to the network communication between a client... read more

Oracle Create a Wallet to Store Secure User Credentials for RMAN Connection

In this blog, I’ll be giving a tutorial on an Oracle hidden gem using an Oracle tool to securely allow you to run RMAN without passing the password in cleartext. The Oracle Database Secure External Password Store feature, which does not require any additional... read more

Oracle 11g AUD$ Table Maintenance after ORA-01653: unable to extend table SYS.AUD$

Problem: ORA-01653: unable to extend table SYS.AUD$ by 1024 in tablespace SYSTEM This error generally results when the aud$ table has a next_extent value that is greater than the available contiguous space in the SYSTEM tablespace. The aud$ table records logins to the... read more