chore: added debug logs mysql (#679)

instana · Jan 10, 2023 · 1ce2736 · 1ce2736
1 parent 0dbd0a2
commit 1ce2736
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Showing 2 changed files with 13 additions and 0 deletions.
diff --git a/packages/core/src/tracing/instrumentation/database/mysql.js b/packages/core/src/tracing/instrumentation/database/mysql.js
@@ -7,6 +7,11 @@
 
 const shimmer = require('shimmer');
 
+let logger;
+logger = require('../../../logger').getLogger('tracing/mysql', newLogger => {
+  logger = newLogger;
+});
+
 const requireHook = require('../../../util/requireHook');
 const tracingUtil = require('../../tracingUtil');
 const constants = require('../../constants');
@@ -24,18 +29,21 @@ exports.init = function init() {
 };
 
 function instrumentMysql(mysql) {
+  logger.debug('instrumentMysql');
   instrumentConnection(Object.getPrototypeOf(mysql.createConnection({})), false);
   instrumentPool(Object.getPrototypeOf(mysql.createPool({})));
 }
 
 function instrumentMysql2(mysql) {
+  logger.debug('instrumentMysql2');
   instrumentConnection(mysql.Connection.prototype, true);
   if (mysql.Pool) {
     instrumentPool(mysql.Pool.prototype);
   }
 }
 
 function instrumentMysql2WithPromises(mysql) {
+  logger.debug('instrumentMysql2WithPromises');
   // Currently only pooled connections will be instrumented.
   instrumentPoolWithPromises(mysql);
 }
@@ -73,6 +81,7 @@ function instrumentPoolWithPromises(mysql) {
 
 function shimQuery(original) {
   return function () {
+    logger.debug('shimQuery');
     if (cls.skipExitTracing({ isActive })) {
       return original.apply(this, arguments);
     }
@@ -83,6 +92,7 @@ function shimQuery(original) {
 
 function shimExecute(original) {
   return function () {
+    logger.debug('shimExecute');
     if (cls.skipExitTracing({ isActive })) {
       return original.apply(this, arguments);
     }
@@ -93,6 +103,7 @@ function shimExecute(original) {
 
 function shimPromiseQuery(originalQuery) {
   return function () {
+    logger.debug('shimPromiseQuery');
     if (cls.skipExitTracing({ isActive })) {
       return originalQuery.apply(this, arguments);
     }

diff --git a/packages/core/src/util/requireHook.js b/packages/core/src/util/requireHook.js
@@ -58,6 +58,7 @@ function patchedModuleLoad(moduleName) {
   //       we try to grab the module name to being able to patch the target module
   //       with our instrumentation
   if (path.isAbsolute(moduleName)) {
+    logger.debug('Path is absolute.', moduleName);
     // EDGE CASE for ESM: mysql2/promise.js
     if (moduleName.indexOf('node_modules/mysql2/promise.js') !== -1) {
       moduleName = 'mysql2/promise';
@@ -76,6 +77,7 @@ function patchedModuleLoad(moduleName) {
         }
       }
     }
+    logger.debug('Path was transformed.', moduleName);
   }
 
   // First attempt to always get the module via the original implementation