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Core Java
Why is my JVM having access to less memory than specified via -Xmx?
“Hey, can you drop by and take a look at something weird”. This is how I started to look into…
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Software Development
“NoSQL Injection” – What 40000 Unsecured MongoDB Databases Mean for our Industry
The news is all over reddit… Major security alert as 40,000 MongoDB databases left unsecured on the internet Security is…
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Enterprise Java
A JAXB Nuance: String Versus Enum from Enumerated Restricted XSD String
Although Java Architecture for XML Binding (JAXB) is fairly easy to use in nominal cases (especially since Java SE 6),…
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Enterprise Java
How to: Refine Hive ZooKeeper Lock Manager Implementation
Hive has been using ZooKeeper as distributed lock manager to support concurrency in HiveServer2. The ZooKeeper-based lock manager works fine…
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Enterprise Java
How to secure Jersey REST services with Spring Security and Basic authentication
In my previous blog post, Quick way to check if the REST API is alive – GET details from Manifest…
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Software Development
10 SQL Articles Everyone Must Read
We’ve been blogging about Java and SQL for a while now, on the jOOQ blog. Over the years, while researching…
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Enterprise Java
How to Analyze Highly Dynamic Datasets with Apache Drill
Today’s data is dynamic and application-driven. The growth of a new era of business applications driven by industry trends such…
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Groovy
Writing Groovy’s groovy.util.slurpersupport.GPathResult (XmlSlurper) Content as XML
In a previous blog post, I described using XmlNodePrinter to present XML parsed with XmlParser in a nice format to…
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Software Development
Hadoop and the OpenDataPlatform
Pivotal, IBM and Hortonworks announced today the “Open Data Platform” (ODP) – an attempt to standardize Hadoop. This move seems…
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