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Delta Lake

NOT ON THE CURRENT EDITION
This blip is not on the current edition of the radar. If it was on one of the last few editions it is likely that it is still relevant. If the blip is older it might no longer be relevant and our assessment might be different today. Unfortunately, we simply don't have the bandwidth to continuously review blips from previous editions of the radarUnderstand more
Nov 2019
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Delta Lake是一个由Databricks开发的开源存储层,用于在大数据场景中引入事务处理。我们在使用Apache Spark时经常遇到的一个问题是缺少ACID事务。Delta Lake通过与Spark的API集成,使用事务日志和版本化的Parquet文件解决了这个问题。由于其可序列化的隔离性,它允许读取器和写入器对Parquet文件进行并发的操作。它的另一个广受好评的特性是对写操作和版本控制的模式强制,它允许我们在必要时可以查询和恢复到旧版本的数据。Delta Lake已经在我们的一些项目中得到了应用,并收获了极好的用户评价。