query log batching: one transaction per flush interval, not per query

2026-08-20 20:57:11 +02:00
parent 037f209179
commit addf24f92c
18 changed files with 422 additions and 61 deletions
@@ -231,6 +231,10 @@ pub const Logging = struct {
    level: LogLevel = .info,
    retention_days: u16 = 30,
    query_log_buffer_max: u32 = 10000,
+    /// How long the query-log writer gathers entries before it commits them.
+    /// `0` does not wait at all: it flushes the entry that woke the writer plus
+    /// whatever is already queued.
+    query_log_flush_interval_s: u16 = 60,
    hide_domains: bool = false,
    hide_client_ips: bool = false,
    output: LogOutput = .stderr,
@@ -565,6 +569,7 @@ const expected_keys = [_][]const u8{
    "logging.max_size_mb",
    "logging.output",
    "logging.query_log_buffer_max",
+    "logging.query_log_flush_interval_s",
    "logging.retention_days",
    "upstream.attempt_timeout_ms",
    "upstream.read_timeout_ms",
@@ -657,6 +662,7 @@ test "toSettings and fromSettings round-trip a non-default config" {
            .level = .err,
            .retention_days = 41,
            .query_log_buffer_max = 43,
+            .query_log_flush_interval_s = 44,
            .hide_domains = true,
            .hide_client_ips = true,
            .output = .file,