I have recently started working with jMeter. And I was doing database stress testing for that. I have added the required drivers in the lib folder. And my jMeter is connected to database. And it works fine.
But the problem now I am facing is how to interpret those results. I just tested only one SQL which is doing SELECT on one table. Below is the screenshot of my various tabs in JMeter.
This below screenshot shows how many threads (10) I am running and Ramp up time.
This below screenshot shows me JDBC Connection Configuration settings, which I am not able to understand as well. It will be great if anyone can throw some thoughts on this what does it mean corresponding to number of threads I am running in my above picture.
This Below screenshot shows the result in a Summary report which I am again not able to interpret. What's the best way to interpret these results? Any thoughts on this will be of great help.
This Below screenshot shows the result which I am again not able to interpret. What's the best way to interpret these results? I was looking for how much time it is taking to execute that one single Select SQL. And this tab shows me lot of information but not sure how to interpret those. Any thoughts on this will be of great help.
Can anyone help me understanding these results? Thanks for the help.
You should use one of these:
Response Time Graph
Aggregate Graph
Look also at jmeter-plugins project:
http://code.google.com/p/jmeter-plugins/
Related
Two years ago a SQL expert opened a SSMS and showed all queries as they were happening in real time. That way he saw which SQL statements were running fast and which took some time to be ran. I remember the queries to be displayed in a "CMD" look alike window. I can't remember if new queries were displayed at the top or were they shown at the bottom of the window.
For the past month I have been trying to figure out how he got this working. I looked everywhere in monitor, but I can't find anything similar to what he showed me than.
The results were similar to the "claymore eth miner window" ...
Can someone point me in the direction of getting this?
You can use sp_whoisactive to get the current running queries. It is very useful to see if currently there is blocking, locking, long running statements.
In order to get better picture of what was going on in the past, you can enable the Query Store. There are some predefined reports:
and various statistics and it is user friendly:
I have created a PowerBI. The source of the data is a SQL database. The amount of data I am working with is over 4M rows but unfortunately, PowerBI is not able to load the data. When I look at the TaskManager (see image), I see multiple subprocesses that seem to be running in the background. The file does not give me an error, but it just runs the entire night and still does not load the 4-5M rows.
Is this something y'all have seen before? None of my colleagues have seen this. Would love any inputs.
Thank you,
Kruthika
I am not able to add data to the database even though the database is up.
I have checked it using
vespa-get-cluster-state
The error message that I got is in the image below.
Please let me know what to do to resolve this issue.
You need to ensure that all your nodes agree on the current time, by running NTP.
You'll probably be better off deploying on https://cloud.vespa.ai so you don't need to deal with this yourself.
I am trying to generate SF300 and SF1000 TPCH data on Databricks. However, my scripts have been running for over 24hrs now and I am guessing I did something wrong.
I followed the instructions the instructions on: https://github.com/databricks/spark-sql-perf. Then I used the notebook(tpcds_datagen.scala) in their repository to generate data. Of course, I modified the parameters to change TPC-DS to TPC-H. But it's extremely slow.
Could someone suggest a quicker way and help me out? Thanks in advance.
This is a very simple question, and maybe the man himself can provide insight on this :)
Does anyone know the pseudocode behind how Fog Creek does database schema management?
I'm running into an issue and I'm trying to figure out if I'm handling it right... I have a module that runs each time someone spins up their site and examines their database to make sure that they have the right changes in place. if they are missing changes, then the script makes the required changes.
My issue is that I was trying to tie it to the session_start portion of the Global.asax, but it seems to be rather flaky at times, and I'm trying to come up with a better scenario.
For reference, I'm trying to run 1 x web application that can respond to any number of hosts, where the host maps via a metabase to find out what database it belongs to and then makes the necessary connections.
You might have more luck asking this on http://fogbugz.stackexchange.com/