Examining distributed training of Keras Models

Creating deep learning models using Keras is pretty straightforward, which is why Keras is often used for prototyping and creating proof-of-concept products. But when it comes to using it for training bigger models or using very big datasets, we need…

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Exposing MyRocks Internals Via System Variables: Part 7, Use Case Considerations

(In the previous post, Part 6, we covered Replication.) In this final blog post, we conclude our series of exploring MyRocks by taking a look at use case considerations. After all, having knowledge of how an engine works is really…

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Fix: SQL Server to PostgreSQL Linked Server Error – “Requested conversion is not supported.”

Problem: You created a linked server on SQL Server to a PostgreSQL database. You can open and navigate the linked server on SSMS up to listing the tables, but can not perform select to certain tables, returning the below errors:…

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Troubleshooting an enterprise user security database login and sudden ORA-12154

I encountered a new problem last week while trying to log in into LDAP-enabled Oracle Database (Enterprise User Security). I entered my SQL*Plus credentials that usually work fine, but received an error ending with ORA-12154. $ sqlplus aprokopjevs@EBSPROD SQL*Plus: Release…

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Datascape Podcast Episode 33 – Recapping Google Next 2019 with Stéphane Fréchette

Today on the show we welcome Stéphane Fréchette to help us through our 2019 Google Next Special! Stéphane is a Google Cloud Solution Architect. In this episode, he does a great job of pulling out the themes and unpacking some…

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Increase your data visualization/reporting velocity and performance with proper semantic layers

We have all seen it before.  You finally get access to new data sources and want to extract insight from that data. You open your favorite reporting or data visualization tool, connect and start updating the tool’s semantic layer. The…

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Exposing MyRocks internals Via system variables: Part 6, Replication

(In the previous post, Part 5, we covered Data Reads.) In this blog post, we continue our series of exploring MyRocks mechanics by looking at the configurable server variables and column family options. In our last post, I explained at…

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How to restore MySQL data folder using persistent disk snapshots (GCP)

There are already many tools for MySQL to perform backups and consistent restores, but this time I’d like to elaborate on how to take advantage of the kindness the cloud, which gives us Persistent Disk Snapshots (PSD) to restore our…

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Exposing MyRocks internals via system variables: Part 5, Data Reads

(In the previous post, Part 4, we covered Compression and Bloom Filters) In this blog post, we continue on our series of exploring MyRocks mechanics by looking at the configurable server variables and column family options. In our last post,…

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Troubleshooting failed database startup after GRID Out Of Place (OOP) rollback

GRID Out Of Place (OOP) patching completed successfully for 18.6.0.0.0. GRID_HOME=/u01/18.3.0.0/grid_2 ORACLE_HOME=/u01/app/oracle/12.1.0.1/db1 Here is an example of the inventory after patching. Run cluvfy was successful, too. GRID OOP Rollback Patching completed successfully for node1. GRID OOP Rollback Patching completed successfully…

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