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Posted to commits@datasketches.apache.org by GitBox <gi...@apache.org> on 2021/08/25 13:29:58 UTC
[GitHub] [datasketches-cpp] relistan opened a new issue #232: Java <-> CPP Theta sketch compatibility issue
relistan opened a new issue #232:
URL: https://github.com/apache/datasketches-cpp/issues/232
I am unsure if this is user error or a bug. I have been attempting to exchange serialized Theta sketches between the Java and C++ implementations. I am able to read sketches encoded from C++ in Java without any issue, _but not the other way around_. Is this perhaps an endianness issue? Both libraries are using Theta sketch serial version 3.
If I use the sketches contained in the test suite for the C++ code that say they are from Java, they do work. If I use a sketch that I wrote out from Java (e.g. `sketch.compact().serialize()`) which works just fine from Java, I get a version mismatch error. Error from the C++ version when opening a sketch I wrote from Java:
```
sketch type mismatch: expected 3, actual 2
```
Relevant versions:
* Java: `datasketches-java-2.0.0`
* C++: `datasketches-cpp-3.1.0`
Hardware/OS:
* MacBook Pro
* Intel CPU
* macOS 10.13.6
Any help is appreciated.
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[GitHub] [datasketches-cpp] relistan closed issue #232: Java <-> CPP Theta sketch compatibility issue
Posted by GitBox <gi...@apache.org>.
relistan closed issue #232:
URL: https://github.com/apache/datasketches-cpp/issues/232
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[GitHub] [datasketches-cpp] relistan commented on issue #232: Java <-> CPP Theta sketch compatibility issue
Posted by GitBox <gi...@apache.org>.
relistan commented on issue #232:
URL: https://github.com/apache/datasketches-cpp/issues/232#issuecomment-905611829
Alas, this is 100% on me. Code was not actually calling `compact()` in Java and therefore the Family/type was wrong.
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