KSnow: SNOWSQL - II

In our previous blog SNOWSQL – I, we introduced you to SnowSQL – a new modern command-line tool. Today we are going to talk about how SnowSQL helps to query data interactively.

SnowSQL Customization

SnowSQL works well after its installation, we can make customizations to get full advantage of SnowSQL.

For example, by defining connections in the config file, we can preset my environment (account, warehouse, database, etc…) and don’t have to worry about connection strings or exposed passwords.

To keep track of which environment we are in, we can customize the prompt to show only the information we need.

#big data and fast data #snowflake #big data #cloud data warehouse #snowflake #snowsql

What is GEEK

Buddha Community

KSnow: SNOWSQL - II

In our previous blog SNOWSQL – I, we introduced you to SnowSQL – a new modern command-line tool. Today we are going to talk about how SnowSQL helps to query data interactively.

SnowSQL Customization

SnowSQL works well after its installation, we can make customizations to get full advantage of SnowSQL.

For example, by defining connections in the config file, we can preset my environment (account, warehouse, database, etc…) and don’t have to worry about connection strings or exposed passwords.

To keep track of which environment we are in, we can customize the prompt to show only the information we need.

#big data and fast data #snowflake #big data #cloud data warehouse #snowflake #snowsql

PostgreSQL Connection Pooling: Part 4 – PgBouncer vs. Pgpool-II

In our previous posts in this series, we spoke at length about using PgBouncer  and Pgpool-II , the connection pool architecture and pros and cons of leveraging one for your PostgreSQL deployment. In our final post, we will put them head-to-head in a detailed feature comparison and compare the results of PgBouncer vs. Pgpool-II performance for your PostgreSQL hosting !

The bottom line – Pgpool-II is a great tool if you need load-balancing and high availability. Connection pooling is almost a bonus you get alongside. PgBouncer does only one thing, but does it really well. If the objective is to limit the number of connections and reduce resource consumption, PgBouncer wins hands down.

It is also perfectly fine to use both PgBouncer and Pgpool-II in a chain – you can have a PgBouncer to provide connection pooling, which talks to a Pgpool-II instance that provides high availability and load balancing. This gives you the best of both worlds!

PostgreSQL Connection Pooling: Part 4 – PgBouncer vs. Pgpool-II

CLICK TO TWEET

Performance Testing

While PgBouncer may seem to be the better option in theory, theory can often be misleading. So, we pitted the two connection poolers head-to-head, using the standard pgbench tool, to see which one provides better transactions per second throughput through a benchmark test. For good measure, we ran the same tests without a connection pooler too.

Testing Conditions

All of the PostgreSQL benchmark tests were run under the following conditions:

1. Initialized pgbench using a scale factor of 100.
2. Disabled auto-vacuuming on the PostgreSQL instance to prevent interference.
3. No other workload was working at the time.
4. Used the default pgbench script to run the tests.
5. Used default settings for both PgBouncer and Pgpool-II, except max_children*. All PostgreSQL limits were also set to their defaults.
6. All tests ran as a single thread, on a single-CPU, 2-core machine, for a duration of 5 minutes.
7. Forced pgbench to create a new connection for each transaction using the -C option. This emulates modern web application workloads and is the whole reason to use a pooler!

We ran each iteration for 5 minutes to ensure any noise averaged out. Here is how the middleware was installed:

• For PgBouncer, we installed it on the same box as the PostgreSQL server(s). This is the configuration we use in our managed PostgreSQL clusters. Since PgBouncer is a very light-weight process, installing it on the box has no impact on overall performance.
• For Pgpool-II, we tested both when the Pgpool-II instance was installed on the same machine as PostgreSQL (on box column), and when it was installed on a different machine (off box column). As expected, the performance is much better when Pgpool-II is off the box as it doesn’t have to compete with the PostgreSQL server for resources.

Throughput Benchmark

Here are the transactions per second (TPS) results for each scenario across a range of number of clients:

#database #developer #performance #postgresql #connection control #connection pooler #connection pooler performance #connection queue #high availability #load balancing #number of connections #performance testing #pgbench #pgbouncer #pgbouncer and pgpool-ii #pgbouncer vs pgpool #pgpool-ii #pooling modes #postgresql connection pooling #postgresql limits #resource consumption #throughput benchmark #transactions per second #without pooling

Setting Up IIS on Windows

IIS is a well-known software to deliver websites on the Microsoft Windows platform. You can use it to deliver static contents, ASP .NET Web applications, or ASP .NET Core web applications. It has many other features, e.g., it can limit the exposed public surface area of the apps that it hosts. Also, it can provide an additional layer of configuration and defense and might integrate better with existing infrastructure.

Based on your OS, you might need to enable the IIS feature, and in this post, I will show you how to quickly setup IIS on your Windows machine.

#web dev #iis #setting up

Install IIS Server on Windows System

Install IIS server on windows system | Shortcut to open IIS, control panel | Web server installation

Install IIS server on windows system

#IIS #IISInstallation #windows #webserver #defaultwebsite
#controlpane #windowsfeatures #dotnet

#iis #iisinstallation #windows #webserver #dotnet

Configure Iis For Wildcard Extensions In Asp.net

I get asked this question a lot as I go around demonstrating the benefits of using URL Rewriting in ASP.NET, how can I process wildcard extensions and just dire

#iis #asp.net #programming