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fix: add started_at to /stats JSON, add logging to stats cache refresh
The /stats endpoint was missing the started_at field entirely. Also
added diagnostic logging to refreshCachedStats so turso query failures
are visible instead of silently swallowed.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
+18
-5
backend/src/metrics/buffer.zig
+18
-5
backend/src/metrics/buffer.zig
···
159
\\SELECT total_searches, total_errors, service_started_at,
160
\\ COALESCE(cache_hits, 0), COALESCE(cache_misses, 0)
161
\\FROM stats WHERE id = 1
162
-
, &.{}) catch return;
163
defer res.deinit();
164
165
-
const row = res.first() orelse return;
166
-
cached_base_searches.store(row.int(0), .release);
167
-
cached_base_errors.store(row.int(1), .release);
168
-
cached_started_at.store(row.int(2), .release);
169
cached_base_cache_hits.store(row.int(3), .release);
170
cached_base_cache_misses.store(row.int(4), .release);
171
cache_initialized.store(true, .release);
172
}
173
···
159
\\SELECT total_searches, total_errors, service_started_at,
160
\\ COALESCE(cache_hits, 0), COALESCE(cache_misses, 0)
161
\\FROM stats WHERE id = 1
162
+
, &.{}) catch |err| {
163
+
logfire.warn("stats_buffer: refresh query failed: {}", .{err});
164
+
return;
165
+
};
166
defer res.deinit();
167
168
+
const row = res.first() orelse {
169
+
logfire.warn("stats_buffer: stats table has no row with id=1", .{});
170
+
return;
171
+
};
172
+
const searches = row.int(0);
173
+
const errors = row.int(1);
174
+
const started = row.int(2);
175
+
cached_base_searches.store(searches, .release);
176
+
cached_base_errors.store(errors, .release);
177
+
cached_started_at.store(started, .release);
178
cached_base_cache_hits.store(row.int(3), .release);
179
cached_base_cache_misses.store(row.int(4), .release);
180
+
181
+
if (!cache_initialized.load(.acquire)) {
182
+
logfire.info("stats_buffer: cache initialized (searches={d}, started_at={d})", .{ searches, started });
183
+
}
184
cache_initialized.store(true, .release);
185
}
186
+2
backend/src/server.zig
+2
backend/src/server.zig
···
351
try jw.write(db_stats.searches);
352
try jw.objectField("errors");
353
try jw.write(db_stats.errors);
354
+
try jw.objectField("started_at");
355
+
try jw.write(db_stats.started_at);
356
try jw.objectField("cache_hits");
357
try jw.write(db_stats.cache_hits);
358
try jw.objectField("cache_misses");