Can You Patch a Protobuf File? Not Really-and Here's Why | HackerNoon
Briefly

Google Protocol Buffers (Protobuf) excel in high-performance distributed systems due to their compact binary formats and swift parsing capabilities. However, efficiently updating parts of serialized data presents challenges. The inherent variable-length encoding used complicates matters; any changes to a field can shift subsequent data, necessitating a full read-modify-write cycle. Though Protobuf offers intelligent features suggesting patching, the reality is that true data integrity requires thorough reassessment of byte offsets and lengths after any alteration.
In high-performance distributed systems, Google Protocol Buffers (Protobuf) are crucial for efficient data serialization, but direct patching of serialized data is largely impractical.
The challenge in patching arises from the variable-length nature of binary data, where modifying one field necessitates a complete read-modify-write cycle to avoid corruption.
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