don't log known slow queries

src/services/cls.js

@@ -48,6 +48,14 @@ function isEntityEventsDisabled() {
     return !!namespace.get('disableEntityEvents');
 }
 
+function disableSlowQueryLogging(disable) {
+    namespace.set('disableSlowQueryLogging', disable);
+}
+
+function isSlowQueryLoggingDisabled() {
+    return !!namespace.get('disableSlowQueryLogging');
+}
+
 function getAndClearEntityChangeIds() {
     const entityChangeIds = namespace.get('entityChangeIds') || [];
 
@@ -93,4 +101,6 @@ module.exports = {
     getAndClearEntityChangeIds,
     putEntityChange,
     ignoreEntityChangeIds,
+    disableSlowQueryLogging,
+    isSlowQueryLoggingDisabled
 };

src/services/content_hash.js

@@ -11,14 +11,17 @@ function getEntityHashes() {
 
     const startTime = new Date();
 
-    const hashRows = sql.getRawRows(`
-        SELECT entityName,
-               entityId,
-               hash,
-               isErased
-        FROM entity_changes 
-        WHERE isSynced = 1
-          AND entityName != 'note_reordering'`);
+    // we know this is slow and the total content hash calculation time is logged
+    const hashRows = sql.disableSlowQueryLogging(
+        () => sql.getRawRows(`
+            SELECT entityName,
+                   entityId,
+                   hash,
+                   isErased
+            FROM entity_changes
+            WHERE isSynced = 1
+              AND entityName != 'note_reordering'`)
+    );
 
     // sorting is faster in memory
     // sorting by entityId is enough, hashes will be segmented by entityName later on anyway

src/services/sql.js

@@ -225,7 +225,7 @@ function wrap(query, func) {
 
     const milliseconds = Date.now() - startTimestamp;
 
-    if (milliseconds >= 20) {
+    if (milliseconds >= 20 && !cls.isSlowQueryLoggingDisabled()) {
         if (query.includes("WITH RECURSIVE")) {
             log.info(`Slow recursive query took ${milliseconds}ms.`);
         }
@@ -295,6 +295,19 @@ async function copyDatabase(targetFilePath) {
     await dbConnection.backup(targetFilePath);
 }
 
+function disableSlowQueryLogging(cb) {
+    const orig = cls.isSlowQueryLoggingDisabled();
+
+    try {
+        cls.disableSlowQueryLogging(true);
+
+        return cb();
+    }
+    finally {
+        cls.disableSlowQueryLogging(orig);
+    }
+}
+
 module.exports = {
     dbConnection,
     insert,
@@ -367,5 +380,6 @@ module.exports = {
     transactional,
     upsert,
     fillParamList,
-    copyDatabase
+    copyDatabase,
+    disableSlowQueryLogging
 };