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Tales From A Lazy Fat DBA

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Parquet, hadoop, and a quietly dying process : lessons from a migration test using GoldenGate 23ai DAA

I was doing some hands-on testing with Oracle GoldenGate 23ai DAA, trying to move data from an old but reliable Oracle 11g database into Microsoft Azure Fabric. The idea was simple enough. Capture changes from Oracle 11g, push them through GoldenGate 23ai, and land them in Fabric OneLake so they could be used by a Lakehouse or a Mirrored Database. O...


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Lessons from Integrating Oracle 11g with GoldenGate – ORA-06512 ORA-06502

This one took time. More than I’d like to admit.

I was trying to run GoldenGate 21c Integrated Extract from a remote extraction server, sourcing redo from an Oracle 11g (11.2.0.4.201020 (October 2020 PSU)) database. Everything worked fine, I was able to create the extract, login to the database, but got a weird i...


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Cleaning Up MySQL Replication Checks With a Bit of Bash

Checking MySQL replication is one of those things DBAs do on autopilot. Log in, open the MySQL client, run SHOW SLAVE STATUS\G or SHOW REPLICA STATUS\G, scroll, scan for Yes, check lag, repeat. It works, but it is noisy, raw, and easy to misread when you are tired or troubleshooting multiple servers.

In some free...


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When GoldenGate decides to throw OGG-02912 just before New Years Eve.

Happy New Year! Because nothing says “end of the year” like firing up a test lab, breaking a GoldenGate extract, and realizing that Oracle 11g still has unfinished business with you. I spent the last hours of the year chasing an error that politely reminded me: old databases never really retire — they just wait

Nothing fancy. Just a simple...


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When Linux Swaps Away My Sleep – MySQL, RHEL8, and the Curious Case of High Swap Usage

I remember an old instance where I’d got an alert that one of production MySQL servers had suddenly gone sluggish after moved to RHEL 8 from RHEL7. On checking, I found something odd … the system was consuming swap heavily, even though there was plenty of physical memory free.

Someone who did the first time deployment years before, left THP as enabled and with defau...


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