Welcome to the DataStax Developer Blog. Here’s where you can find the latest insights and technical articles from top experts and fellow peers on development aspects of DataStax Enterprise and its components, including Apache Cassandra, Apache Hadoop, Apache Solr and DataStax OpsCenter.
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Deletes in Cassandra Cassandra uses a log-structured storage engine. Because of this, deletes do not remove the rows and columns immediately and in-place. Instead, Cassandra writes a special marker, called a tombstone, indicating that a row, column, or range of columns was deleted. These tombstones are…
DataStax Enterprise 3.0.1 is now available for download. This release includes many improvements to DSE Search such as new Solr data type to Cassandra Validator mappings. Please see the release notes for specific information about bug fixes and improvements.
When I joined Datastax, I was immediately cast into Hades to come to terms with it's guardian, Kerberos... I survived and thought I should pass my experience on to new people delving into Kerberos based security for the first time.
In this blog post, we present some helpful hints on what to do when things go wrong. They will help you get your problem resolved by our support team faster than if you just filed a support ticket saying “It doesn’t work!”. Spending a few minutes more and providing us…
Introduced in version 0.7, secondary indexes provide a means to access data in Cassandra using attributes other than the row key. The two index implementations currently in the Cassandra codebase use an auxiliary column family to model an inverted index of values from a “primary” column family. The SecondaryIndex…
This article is one in a series of quick-hit interviews with companies using Apache Cassandra and/or DataStax Enterprise (DSE) for key parts of their business. For this interview, we talked with Shion Deysarkar who is the CEO at Datafiniti, along with Phil Coleman who’s the data team lead and Michael Pellon who runs operations.…
With OpsCenter Enterprise Edition 3.0, we’ve made it easier to store all of OpsCenter’s data in a separate cluster instead of the cluster being monitored. The data that OpsCenter stores includes performance metrics, a log of notable events, and settings such as alert configurations and snapshot schedules. Normally,…
DataStax Community Edition 1.2.3, which includes Apache Cassandra 1.2.3, is now available on our downloads page. All changes can be found in the CHANGES.txt file in the main installation directory.
DataStax OpsCenter 3.0.2, which includes a number of bug fixes, is now available for download. For a full list of changes, see the release notes.
