What Is a Log Parser?
A log parser reads raw log text and pulls out discrete fields such as timestamp, level, and message, producing structured records. It may rely on patterns, regular expressions, or knowledge of a known format like JSON. The structured output lets a logging system index and query fields rather than scanning free text.
Why it matters
Free-text logs are slow and clumsy to search at scale. Parsing them into fields makes queries fast and enables filtering and aggregation that raw lines cannot support.
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