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The effects of COVID-19 continue to disrupt "business as usual." However, there are opportunities for strengthening business processes and even growth that were not present previously. Here is XTIVIA's top 10 list of things your DBA could be doing to help make the...
If you're running a 3 member ReplicaSet that uses an Arbiter as its third member, then you will be presented with this warning when you connect to the shell. When a node goes down in a PSA architecture (Primary, Secondary, Arbiter) the wiredTiger storage engine starts...
This article explains how to configure Oracle Golden Gate software to perform a unidirectional replication from a source non-CDB database on Oracle 12c to a target pluggable database on Oracle 19c. One possible use case is if you need to migrate from your non-CDB...
MongoDB-CR is the challenge response authentication mechanism used in MongoDB versions before 4.0. In version 4.0 this mechanism is removed and you must upgrade to the new mechanism SCRAM before you upgrade to 4.0. You will receive this warning if you have launched...
When connection requests to a MySQL database from a given host are interrupted, MySQL keeps track of the number of successive interruptions in the host cache. MySQL will eventually block the host, giving them a message [1129] "Host 'host_name' is blocked because of...
When you're upgrading from previous versions before 3.6 you might notice this warning showing up in the shell when you start the server for the first time. This warning is telling you that you don't have an IP bound to your instance, preventing any connections to the...
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...
When running a MongoDB instance, it's always important and even recommended to disable Transparent Huge Pages. Database workload can be poor when THP is enabled. Service File This service will allow you to disable THP during startup. Create the service file we'll use....
Microsoft states, "Azure Arc for servers allows you to manage machines which are outside of Azure. When a non-Azure machine is connected to Azure, it becomes a Connected Machine and is treated as a resource in Azure. Each Connected Machine has a Resource ID, is...
Snapshots in Amazon when taken manually, are not available for scheduling. In order to accomplish this you could run Amazon CLI but for that you would need to execute from a server based on a cron job or something similar. This solution will allow you to run a...