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Category: Error Handling

Concurrent Index Creation in Postgres

Published 2024-08-13 by Kevin Feasel

Shayon Mukherjee recommends against a particular technique:

As a developer, you might have encountered situations where creating an index in PostgreSQL fails due to lock timeouts. In such scenarios, it’s tempting to use the IF NOT EXISTS as a quick fix and move on. However, this approach can lead to subtle and hard-to-debug issues in production environments.

Click through to learn more about how concurrent index creation works in Postgres and why the use of IF NOT EXISTS might not work the way you want.

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Power BI Report Server “Couldn’t Connect to the Analysis Services Server”

Published 2024-08-02 by Kevin Feasel

Deepthi Goguri grabs a patch:

When you check the Change log for Power BI Report Server, Version: 1.20.8910.25479 (build 15.0.1115.165), Released: May 28, 2024 release notes mentioned about the security change made during this update to add the environment variable and system variable on the Power BI Report Server machine.

Read on to learn more about this and what it takes to correct the issue.

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Filestream and Availability Groups

Published 2024-07-22 by Kevin Feasel

Chad Callihan kicks a hornets’ nest:

Migrating databases to new servers and configuring them for availability groups can be a complex process. It can be more complex depending on what type of sneaky features are in use by the databases being migrated. I encountered an interesting issue migrating a database that had been setup to use FILESTREAM and wanted to show the steps I took to identify and resolve it.

Read on for the issue and what happened. It was a small thing overall, but the kind of small thing that can eat up the better part of a day if you’re not aware of it.

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Target Platform Error Deploying DACPAC to Azure SQL DB

Published 2024-07-19 by Kevin Feasel

Kunal Rathi troubleshoots an issue:

While deploying a DACPAC project to Azure SQL database using Azure DevOps, you may come across ‘A project which specifies SQL Server 2022 as the target platform cannot be published to Azure SQL Database v12.’ error. In this article, we will see how to fix this issue.

There are plenty of errors in Microsoft products that make little to no sense. This is, by contrast, a rather straightforward one, and Kunal shows how to resolve it.

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Fixing an Error in DBCC CloneDatabase

Published 2024-07-18 by Kevin Feasel

Steve Jones runs into an issue:

This was an interesting error, and I was able to duplicate it, so I decided to write a post on how to find the problem and fix it. The error after running DBCC CLONEDATABASE is:

NO_STATISTICS and NO_QUERYSTORE options turned ON as part of VERIFY_CLONE.
Database cloning for 'atest' has started with target as 'aSmallTest'.
Msg 2601, Level 14, State 1, Line 11
Cannot insert duplicate key row in object 'sys.sysschobjs' with unique index 'clst'. The duplicate key value is (885578193).

The final key value (885578193) for you might be different, but the error is the same.

Read on to learn more about the issue, as well as how Steve was able to fix the problem.

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Dealing with Query Store in Error State

Published 2024-07-05 by Kevin Feasel

David Fowler turns it off then back on again, like a true IT professional:

I recently received a complaint that Query Store for a particular database was turned off, which was strange as that particular database has seen quite a few performance issues and I know that I’d ensured Query Store was enabled in the past.

No problem, I flicked the switch and Query Store was enabled again.

Half an hour or so later and I’m being told that Query Store is again disabled. What’s going on?

Read on to learn what to do if you get stuck with this problem.

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Debugging Failed Function Calls in ADF

Published 2024-06-26 by Kevin Feasel

Andy Brownsword troubleshoots a problem:

I recently ran into an issue when trying to call a function from an ADF pipeline. The function returned a generic Internal Server Error with no details exposed. Here we’ll look at how to dig into the logs to identify the true cause of the failure.

In this instance the function was performing PGP encryption but this could apply to any function. Let’s start with the problem.

Click through for the very generic error message and how you can get the real details.

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Power BI Query Memory Limit

Published 2024-06-25 by Kevin Feasel

Chris Webb continues a series:

Continuing my series on Power BI memory errors (see part 1, part 2 and part 3), in this post I’ll look at the query memory limit which controls the amount of memory that an individual query can consume. This is a subject which I’ve talked about in a few blog posts in the past: hitting this limit is one of the reasons you’ll see the “This visual has exceeded the available resources” error which I blogged about here and and here. There’s also some official documentation here which is pretty good.

Read on to learn more about what settings you have available for it and a few more tips.

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