In Part 1 of this article, we saw how to configure Apache Cassandra across multiple Datacenters (DCs) as well as the clients for Cassandra solution availability. This ensures that if sufficient nodes in one DC were unavailable (or the entire DC went down), clients would seamlessly failover to the other DC. When the failed DC came back …
We frequently come across situations where we get a data source in JSON that we need to load into Snowflake. While Snowflake supports JSON data sources, there are some nuances of how the load process works that can take a while to understand and work around. The result is that we ended up spending more …
I really like the Time Travel feature in Snowflake. It is very handy and absurdly simple. If you have incorrectly updated one of your Snowflake tables and if you know that your table was in the correct state at 9 am on Sun, Oct 13, 2019, then you can simply run the query: SELECT * …
Apache Cassandra is the always-on NoSQL database that is highly scalable and available. That sounds magical and is in fact true – IF you understand how to configure it correctly ! This article describes an issue we ran into when setting up a multi-DC configuration for Cassandra failover and how it was resolved. Cassandra Configuration Single Region, …
If you google the word ‘snowflake‘ for the first time, you will likely get references to the ‘it insult‘ word, Taiwanese dessert, a crystal of snow, etc. Once you find that Snowflake is the hot new data warehouse in the cloud, your subsequent searches are likely to be more productive in terms of digging up documentation. However, complex …
As part of our Analytics practice, we repeatedly encounter use cases where complex calculations over large datasets are required. In this series, we will compare two distributed computing systems – Dask and Spark – that have become very popular in recent times. To evaluate these, we will select a use case that comes up in …
At Data-Aces, we provide managed services running Cassandra for our customers. With more and more attention being given to data security these days, end-to-end encryption of ALL communication is becoming a mandatory requirement. This includes traffic between the Cassandra nodes or from client to the Cassandra cluster. This means, cqlsh with SSL is also a …
TensorFlow supports running computations on a variety of types of devices, including CPU and GPU. Originally used for display functions, GPUs were developed to scale up parallel computations using thousands of cores. This happens to match very well with how we execute the training of Machine Learning algorithms in Deep Learning Models. In python, the …
Setting up GPU support for Tensorflow on Windows 10 Read More »
