FluentBitFields

FluentBitFields is a data structure used in the Fluent Bit logging and metrics processor, designed to efficiently store and manage metadata associated with log records. It is implemented as a bit field, where each bit represents a specific attribute or flag. This approach allows for compact and fast storage, as multiple attributes can be stored in a single integer value.

The FluentBitFields structure is particularly useful in high-performance logging systems where minimizing memory usage and maximizing processing speed are critical. By using bit fields, Fluent Bit can quickly check and set various flags without the overhead of more complex data structures.

The structure typically includes fields for common log attributes such as the log level, whether the log record is a retry, or if it has been processed. Each field is assigned a specific bit position within the integer, allowing for efficient bitwise operations to manipulate the data.

FluentBitFields is integrated into the core of Fluent Bit, enabling it to handle large volumes of log data with minimal resource consumption. Its design aligns with the overall goals of Fluent Bit to provide a lightweight, efficient, and scalable logging solution.