YunDa

Although this is defined in the JSON RFC: `The hexadecimal letters A through F can be uppercase or lowercase`, many implementations use the uppercase solution. Would it be better to...

[VL] Use conf to control C2R occupied memory

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## What changes were proposed in this pull request? In the current design, the Column2Row operation is completed in one go, which consumes a lot of memory and causes the...

Fix MemoryPool::capacity_ can be negative

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- Step 1: In some cases, `capacity_` can be smaller than `reservationBytes_`, which will cause `capacity_ - reservationBytes_` to be a negative value. - Step 2:After converting a negative value...

Use computeChainDataLength() instead of length()

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Should use computeChainDataLength() instead of length(), below is comments from `folly/io/IOBuf.h` ``` /** * Get the size of the data for this individual IOBuf in the chain. * * Use...