A Filesystem For DMVs

Anthony Nocentino shows how Microsoft is embracing the Linux style by creating a view of DMVs as a filesystem:

Something isn’t right…as DBAs we think of things in rows and columns. So we’re going to count across the top and think the 7th column is going to yield the 7th column and it’s data for each row, right? Well, it will but data processed by awk is whitespace delimited by default and is processed row by row. So the 7th column in the second line isn’t the same as the output in the first line. This can be really frustrating if your row data has spaces in it…like you know…dates.
So let’s fix that…the output from the DMVs via dbfs is tab delimited. We can define our delimiter for awk with -F which will allow for whitespaces in our data. Breaking the data only on the tabs. Let’s hope there isn’t any tabs in our data!

I’m a little surprised that these metrics don’t end up in /proc, but I imagine there’s a reason for that.

Related Posts

Sending SQL Server Notifications To Slack

Alessandro Alpi shows how to integrate SQL Server notifications with Slack: Now, how can we send notifications from SQL Server in an easier way than using custom code or a Slack incoming webhook? Is there any integration or a Slack app?  Yes. And guess what? I think you’ll like it because you don’t need to write […]

Read More

Running SQL Server On Cluster Shared Volumes

Sreekanth Bandarla continues a series on clustered shared volumes: In the previous part of this series, we have seen what a cluster shared volume is and what are the advantages and other considerations to keep in mind when deploying CSVs for SQL Server workloads. In this article, I will walk though actual installation of a failover cluster Instance […]

Read More

Categories

June 2017
MTWTFSS
« May Jul »
 1234
567891011
12131415161718
19202122232425
2627282930