We have a scheduled Spark maintenance jobs which runs all necessary Spark actions to keep our data lake clean and healthy. Recently we have upgraded iceberg from 1.1.0 to 1.7.0 and enabled deletes ...

Learn about the best practices for concurrency in Java to ensure your multi-threaded applications are efficient, synchronized, and error-free. Concurrency in Java is the ability of multiple threads to ...

hi there, our service is using caffeine as cache, recently some of the service pod met the deadlock. As the jstack log provided bellow, all the other LocalLoadingCache.getAll thread were blocked by ...

Iterators in Java typically expect exclusive access to the data structure they loop through. If another thread tries to modify a collection of objects while an ...

NTT DATA Services, a global digital business and IT services leader, has entered an agreement to acquire Hashmap, adding deep technical expertise with modern data platforms to support analytics, ...

While the Hashtable was part of the initial Java release over two decades ago, the HashMap is the correct key-value store to use today. One key HashMap vs. Hashtable difference is the fact that the ...

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A colleague of mine recently ran into an issue that I have not run into myself, but found to be interesting and, in my opinion, worth blogging about here. During some distributed Java development, my ...