Java Magic. Part 4: sun.misc.Unsafe
Java is a safe programming language and prevents programmer from doing a lot of stupid mistakes, most of which based on memory management. But, there is a way to do such mistakes intentionally, using Unsafe class. This article is a quick overview of sun.misc.Unsafe public API and few interesting cases of its usage. Unsafe instantiation Before usage, we need to create instance of Unsafe object. The
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Three Fast Data Application Patterns - High Scalability -
This is guest post by John Piekos, VP Engineering at VoltDB. I understand this is a little PRish, but I think the ideas are solid. The focus of many developers and architects in the past few years has been on Big Data, specifically mining historical intelligence from the Data Lake (usually a Hadoop stack containing terabytes to petabytes of data). Now, product architects are asking how they can us
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Why do Spark jobs fail with org.apache.spark.shuffle.MetadataFetchFailedException: Missing an output location for shuffle 0 in speculation mode?
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