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debug: add ACK diagnostic logging to tap consumer
Tracks ack_count and no_id_count to determine whether extractMessageId
returns null (no ACK sent) or ACKs are sent but not received by TAP.
Logs first 3 ACK payloads and first 5 no-id messages.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
+13
-1
backend/src/ingest/tap.zig
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-1
backend/src/ingest/tap.zig
···
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allocator: Allocator,
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client: *websocket.Client,
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msg_count: usize = 0,
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ack_count: usize = 0,
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no_id_count: usize = 0,
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ack_buf: [64]u8 = undefined,
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pub fn serverMessage(self: *Handler, data: []const u8) !void {
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self.msg_count += 1;
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if (self.msg_count % 1000 == 0) {
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-
logfire.info("tap: processed {d} messages", .{self.msg_count});
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logfire.info("tap: processed {d} messages, acks sent: {d}, no-id: {d}", .{ self.msg_count, self.ack_count, self.no_id_count });
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}
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// extract message ID for ACK
···
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// send ACK if we have a message ID
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if (msg_id) |id| {
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self.sendAck(id);
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} else {
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self.no_id_count += 1;
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if (self.no_id_count <= 5) {
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logfire.warn("tap: message has no id, first {d} bytes: {s}", .{ @min(data.len, 100), data[0..@min(data.len, 100)] });
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}
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}
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}
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···
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};
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self.client.write(@constCast(ack_json)) catch |err| {
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logfire.err("tap: failed to send ACK: {}", .{err});
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return;
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};
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self.ack_count += 1;
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if (self.ack_count <= 3) {
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logfire.info("tap: ACK sent for id={d}, ack_json={s}", .{ msg_id, ack_json });
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}
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}
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pub fn close(_: *Handler) void {}