mirror of https://github.com/apache/druid.git
3db8967dee
* FrameFile: Java 17 compatibility. DataSketches Memory.map is not Java 17 compatible, and from discussions with the team, is challenging to make compatible with 17 while also retaining compatibility with 8 and 11. So, in this patch, we switch away from Memory.map and instead use the builtin JDK mmap functionality. Since it only supports maps up to Integer.MAX_VALUE, we also implement windowing in FrameFile, such that we can still handle large files. Other changes: 1) Add two new "map" functions to FileUtils, which we use in this patch. 2) Add a footer checksum to the FrameFile format. Individual frames already have checksums, but the footer was missing one. * Changes for static analysis. * wip * Fixes. |
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