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new 84f1415 2020-10-28 cass changelog blog post
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Author: MKL <[email protected]>
AuthorDate: Tue Oct 27 13:58:01 2020 -0700
2020-10-28 cass changelog blog post
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+---
+layout: post
+title: "Apache Cassandra Changelog #1 (October 2020)"
+date: 2020-10-28
+author: the Apache Cassandra Community
+categories: blog
+---
+
+
+
+Introducing the first Cassandra Changelog blog! Our monthly roundup of key
activities and knowledge to keep the community informed.
+
+## Release Notes
+
+#### ### Updated
+
+The most current Apache Cassandra releases are 4.0-beta2, 3.11.8, 3.0.22,
2.2.18 and 2.1.22 released on August 31 and are [in the
repositories](https://cassandra.apache.org/download/). The next cut of releases
will be out soon―join the Cassandra [mailing
list](https://cassandra.apache.org/community/) to stay up-to-date.
+
+We continue to make progress toward the 4.0 GA release with the overarching
goal of it being at a state where major users should feel confident running it
in production when it is cut. Over 1,300 Jira tickets have been closed and
[less than 100
remain](https://issues.apache.org/jira/projects/CASSANDRA/versions/12346094) as
of this post. To gain this confidence, there are various ongoing testing
efforts involving correctness, performance, and ease of use.
+
+#### ### Added
+
+With CASSANDRA-15013, the community improved Cassandra's ability to
[handle high throughput
workloads](https://cassandra.apache.org/blog/2020/09/03/improving-resiliency.html),
while having enough safeguards in place to protect itself from potentially
going out of memory.
+
+#### ### Added
+
+The [Harry
project](https://github.com/apache/cassandra-harry/blob/master/README.md) is a
fuzz testing tool that aims to generate reproducible workloads that are as
close to real-life as possible, while being able to efficiently verify the
cluster state against the model without pausing the workload itself.
+
+<blockquote class="twitter-tweet"><p lang="en" dir="ltr">Check out Harry, a
fuzz-testing tool for Apache Cassandra, the best way to test databases or
storage engines you've ever used: <a
href="https://t.co/WjtkIMMrXp";>https://t.co/WjtkIMMrXp</a></p>— αλεx π
(@ifesdjeen) <a
href="https://twitter.com/ifesdjeen/status/1308036563402719234?ref_src=twsrc%5Etfw";>September
21, 2020</a></blockquote> <script async
src="https://platform.twitter.com/widgets.js"; charset="utf-8"></script>
+
+#### ### Added
+
+The community published its first [Apache Cassandra Usage Report
2020](https://cassandra.apache.org/blog/2020/09/17/cassandra-usage-report-2020.html)
detailing findings from a comprehensive global survey of 901 practitioners on
Cassandra usage to provide a baseline understanding of who, how, and why
organizations use Cassandra.
+
+## Community Notes
+
+_Updates on new and active Cassandra Enhancement Proposals (CEPs) and how to
contribute._
+
+#### ### Changed
+
+[CEP-2: Kubernetes
Operator](https://cwiki.apache.org/confluence/display/CASSANDRA/CEP-2+Kubernetes+Operator)
was introduced this year and is an active discussion on creation of a
community-based operator with the goal of making it easy to run Cassandra on
Kubernetes.
+
+#### ### Added
+
+[CEP-7: Storage Attached Index
(SAI)](https://cwiki.apache.org/confluence/display/CASSANDRA/CEP-7%3A+Storage+Attached+Index)
is a new secondary index for Cassandra that builds on the advancements made
with SASI. It is intended to replace the existing built-in secondary index
implementations.
+
+#### ### Added
+
+Cassandra was selected by the ASF Diversity & Inclusion committee to be
[included in a research
project](https://lists.apache.org/thread.html/rfa1673c9f8b42cf286f5fb763eb987eced2bdea1a619358869a49bef%40%3Cdev.cassandra.apache.org%3E)
to evaluate and understand the current state of diversity.
+
+## User Space
+
+**Bigmate**
+
+"In vetting MySQL, MongoDB, and other potential databases for IoT scale,
we found they couldn't match the scalability we could get with open source
Apache Cassandra. Cassandra's built-for-scale architecture enables us to
handle millions of operations or concurrent users each second with ease –
making it ideal for IoT deployments." - [Brett
Orr](https://www.iotcentral.io/blog/how-open-source-apache-cassandra-solved-our-iot-scalability-and-r)
+
+**Bloomberg**
+
+"Our group is working on a multi-year build, creating a new Index
Construction Platform to handle the daily production of the Bloomberg Barclays
fixed income indices. This involves building and productionizing an Apache
Solr-backed search platform to handle thousands of searches per minute, an
Apache Cassandra back-end database to store millions of data points per day,
and a distributed computational engine to handle millions of computations
daily." - [Pinky Dewani](https://www [...]
+
+## In the News
+
+**Solutions Review** - [The Five Best Apache Cassandra Books on Our Reading
List](https://solutionsreview.com/data-management/the-five-best-apache-cassandra-books-on-our-reading-list/)
+
+**ZDNet** - [What Cassandra users think of their NoSQL
DBMS](https://www.zdnet.com/article/what-cassandra-users-think-of-their-nosql-dbms/)
+
+**Datanami** - [Cassandra Adoption Correlates with
Experience](https://www.datanami.com/2020/09/22/cassandra-adoption-correlates-with-experience/)
+
+**Container Journal -** [5 to 1: An Overview of Apache Cassandra Kubernetes
Operators](https://containerjournal.com/topics/container-management/5-to-1-an-overview-of-apache-cassandra-kubernetes-operators/)
+
+**Datanami** - [Cassandra Gets Monitoring, Performance
Upgrades](https://www.datanami.com/2020/07/21/cassandra-gets-monitoring-performance-upgrades/)
+
+**ZDNet** - [Faster than ever, Apache Cassandra 4.0 beta is on its
way](https://www.zdnet.com/article/faster-than-ever-apache-cassandra-4-0-beta-is-on-its-way/)
+
+## Cassandra Tutorials & More
+
+A Cassandra user was in search of a tool to perform schema DDL upgrades.
Another user suggested
[https://github.com/patka/cassandra-migration](https://github.com/patka/cassandra-migration)
to ensure you don't get schema mismatches if running multiple upgrade
statements in one migration. See the [full
email](https://lists.apache.org/thread.html/rdfee145c4c5d920f644c6bcd081c6fb446d52b055c133485217b8143%40%3Cuser.cassandra.apache.org%3E)
on the user mailing list for other recommended tools.
+
+[Start using virtual tables in Apache Cassandra
4.0](https://opensource.com/article/20/10/virtual-tables-apache-cassandra) -
Ben Bromhead, Instaclustr
+
+[Benchmarking Apache Cassandra with
Rust](https://pkolaczk.github.io/benchmarking-cassandra/) - Piotr Kołaczkowski,
DataStax
+
+[Open Source BI Tools and
Cassandra](https://blog.anant.us/open-source-bi-tools-and-cassandra/) - Arpan
Patel, Anant Corporation
+
+[Build Fault Tolerant Applications With Cassandra API for Azure Cosmos
DB](https://dzone.com/articles/build-fault-tolerant-applications-with-cassandra-a)
- Abhishek Gupta, Microsoft
+
+[Understanding Data Modifications in
Cassandra](https://www.red-gate.com/simple-talk/blogs/understanding-data-modifications-in-cassandra/)
- Sameer Shukla, Redgate
+
+##
+
+##
+Cassandra Changelog is curated by the community. Please send submissions to
[[email protected]](mailto:[email protected]).
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