Take a look at how to marshal and unmarshal your Java objects and XML data with JAXB 2.0, a useful tool for generating XML schemas from Java code and vice-versa.
If you use a vSphere infrastructure, then vCheck can help. The vCheck framework is designed to run checks against your infrastructure to determine operational issues.
The ZipKin distributed tracing system is great for testing latency issues, but by default, it doesn't persist the traces. Fortunately, you can fix that with Cassandra and MySQL.
This code will help you connect your app to MS Exchange using the EWS Java API. In its current form, the snippet fetches emails and appointments and can be broadened.
Query processing is one of the most complex and complicated areas in the database realm. Intersect scans leverage multiple indexes for a query and bring subtle performance characteristics.
It is possible to define variables in DataWeave header, DataWeave body, and flow variables before the DataWeave component in a Mule flow in DataWeave code.
There are times when a MapReduce job exceeds its memory limits. This article presents an overview of how YARN monitors the memory for containers and provides the technique to fix this issue.
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