Unleash the power of your data with Pythian at DBTA Data Summit 2019

Pythian is the Diamond Research and Keynote Sponsor at Data Summit 2019 in Boston on May 21 to 22. See you there! The theme of this year’s DBTA Data Summit is “unleashing the power of your data” – exactly what…

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Exposing MyRocks Internals via system variables: Part 2, Initial Data Flushing

(In the previous post, Part 1, we covered Data Writing.) In this blog post, we continue on our series of exploring MyRocks mechanics by looking at configurable server variables and column family options. In our last post, I explained at…

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How to fix SQL backup to URL failure – operating system error 50

Problem: You run an SQL backup to URL and get the following error: Msg 3201, Level 16, State 1, Line 1 Cannot open backup device ‘https://<mystorageaccountname>.blob.core.windows.net/<mycontainername>/AdventureWorks_full_20190420.bak’. Operating system error 50(The request is not supported.). Msg 3013, Level 16, State 1,…

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How to fix the status of of the Oracle GI CRS after a failed upgrade

A couple of weeks ago I was working on a two-node Oracle Grid Infrastructure upgrade from 12.1 to 18.5. Everything was going great as both rootupgrade.sh scripts ran correctly, so the only thing pending to run was the gridSetup.sh -executeConfigTools …

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3 key data analytics announcements from Google NEXT 2019

Google NEXT 2019 was a momentous event for the Pythian team. We celebrated winning the Google Cloud Global Data Analytics Partner of the Year award, had a chance to meet with customers and Googlers, and had many conversations about the…

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How to troubleshoot a failure to mount DBFS

Stop a CRS error with [Stop of ‘ora.crsd’ on ‘host02’ failed.].  I will demonstrate my attempts to troubleshoot and identify the cause for failure. # crsctl stop crs DBFS is registered and managed by CRS: $ $GRID_HOME/bin/crsctl stat res -w…

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How to fix SSIS deployment error “please create a master key”

Problem: You are deploying a SQL Server Integration Services Package to the SSIS Catalog and keeps on failing with the following error: The error is succinct and direct to the point: “Please create a master key in the database or…

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Exposing MyRocks internals via system variables: Part 1, Data Writing

Series Introduction Back in 2016 I decided to write a blog series on InnoDB in hopes that it would help give a good description of the high level mechanics of the storage engine. The main motivating factor at that time…

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Troubleshooting a failure when upgrading to Oracle 18c

WhenI was upgrading Grid to 18c, the final step was to run gridSetup.sh -executeConfigTools, which failed. Unfortunately, the error provided was not very descriptive or useful. In this post, I will demonstrate how I went about troubleshooting the failure. To…

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Running new Oracle DBSAT version 2.1.0 against Autonomous Database

Recently Oracle released the newest version of the “Database Security Assessment Tool” (DBSAT 2.1.0). This version is certified to run against Oracle Cloud DBCS (PaaS) and Autonomous Databases. Also, the Discoverer option can now find sensitive and personal data in…

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