From b3be7b1d0827f7fae47e60430de17373294f2890 Mon Sep 17 00:00:00 2001
From: Michael Friedrich <michael.friedrich@icinga.com>
Date: Wed, 22 Feb 2017 16:32:17 +0100
Subject: [PATCH] Add more debug build logging to IDO MySQL

refs #4603
---
 lib/db_ido_mysql/idomysqlconnection.cpp | 74 +++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

diff --git a/lib/db_ido_mysql/idomysqlconnection.cpp b/lib/db_ido_mysql/idomysqlconnection.cpp
index 34969c3a0..c3e9cdce3 100644
--- a/lib/db_ido_mysql/idomysqlconnection.cpp
+++ b/lib/db_ido_mysql/idomysqlconnection.cpp
@@ -101,6 +101,11 @@ void IdoMysqlConnection::Pause(void)
 
 	DbConnection::Pause();
 
+#ifdef I2_DEBUG /* I2_DEBUG */
+	Log(LogDebug, "IdoMysqlConnection")
+	    << "Rescheduling disconnect task.";
+#endif /* I2_DEBUG */
+
 	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::Disconnect, this), PriorityHigh);
 	m_QueryQueue.Join();
 }
@@ -144,6 +149,11 @@ void IdoMysqlConnection::TxTimerHandler(void)
 
 void IdoMysqlConnection::NewTransaction(void)
 {
+#ifdef I2_DEBUG /* I2_DEBUG */
+	Log(LogDebug, "IdoMysqlConnection")
+	    << "Scheduling new transaction and finishing async queries.";
+#endif /* I2_DEBUG */
+
 	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::InternalNewTransaction, this), PriorityHigh);
 	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::FinishAsyncQueries, this), PriorityHigh);
 }
@@ -161,6 +171,11 @@ void IdoMysqlConnection::InternalNewTransaction(void)
 
 void IdoMysqlConnection::ReconnectTimerHandler(void)
 {
+#ifdef I2_DEBUG /* I2_DEBUG */
+	Log(LogDebug, "IdoMysqlConnection")
+	    << "Scheduling reconnect task.";
+#endif /* I2_DEBUG */
+
 	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::Reconnect, this), PriorityLow);
 }
 
@@ -414,6 +429,11 @@ void IdoMysqlConnection::Reconnect(void)
 
 	UpdateAllObjects();
 
+#ifdef I2_DEBUG /* I2_DEBUG */
+	Log(LogDebug, "IdoMysqlConnection")
+	    << "Scheduling session table clear and finish connect task.";
+#endif /* I2_DEBUG */
+
 	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::ClearTablesBySession, this), PriorityLow);
 
 	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::FinishConnect, this, startTime), PriorityLow);
@@ -677,6 +697,11 @@ void IdoMysqlConnection::DiscardRows(const IdoMysqlResult& result)
 
 void IdoMysqlConnection::ActivateObject(const DbObject::Ptr& dbobj)
 {
+#ifdef I2_DEBUG /* I2_DEBUG */
+	Log(LogDebug, "IdoMysqlConnection")
+	    << "Scheduling object activation task for '" << dbobj->GetName1() << "!" << dbobj->GetName2() << "'.";
+#endif /* I2_DEBUG */
+
 	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::InternalActivateObject, this, dbobj), PriorityLow);
 }
 
@@ -711,6 +736,11 @@ void IdoMysqlConnection::InternalActivateObject(const DbObject::Ptr& dbobj)
 
 void IdoMysqlConnection::DeactivateObject(const DbObject::Ptr& dbobj)
 {
+#ifdef I2_DEBUG /* I2_DEBUG */
+	Log(LogDebug, "IdoMysqlConnection")
+	    << "Scheduling object deactivation task for '" << dbobj->GetName1() << "!" << dbobj->GetName2() << "'.";
+#endif /* I2_DEBUG */
+
 	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::InternalDeactivateObject, this, dbobj), PriorityLow);
 }
 
@@ -811,6 +841,11 @@ void IdoMysqlConnection::ExecuteQuery(const DbQuery& query)
 {
 	ASSERT(query.Category != DbCatInvalid);
 
+#ifdef I2_DEBUG /* I2_DEBUG */
+	Log(LogDebug, "IdoMysqlConnection")
+	    << "Scheduling execute query task, type " << query.Type << ", table '" << query.Table << "'.";
+#endif /* I2_DEBUG */
+
 	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::InternalExecuteQuery, this, query, -1), query.Priority, true);
 }
 
@@ -819,6 +854,11 @@ void IdoMysqlConnection::ExecuteMultipleQueries(const std::vector<DbQuery>& quer
 	if (queries.empty())
 		return;
 
+#ifdef I2_DEBUG /* I2_DEBUG */
+	Log(LogDebug, "IdoMysqlConnection")
+	    << "Scheduling multiple execute query task, type " << queries[0].Type << ", table '" << queries[0].Table << "'.";
+#endif /* I2_DEBUG */
+
 	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::InternalExecuteMultipleQueries, this, queries), queries[0].Priority, true);
 }
 
@@ -865,6 +905,13 @@ void IdoMysqlConnection::InternalExecuteMultipleQueries(const std::vector<DbQuer
 		ASSERT(query.Type == DbQueryNewTransaction || query.Category != DbCatInvalid);
 
 		if (!CanExecuteQuery(query)) {
+
+#ifdef I2_DEBUG /* I2_DEBUG */
+			Log(LogDebug, "IdoMysqlConnection")
+			    << "Scheduling multiple execute query task again: Cannot execute query now. Type '"
+			    << query.Type << "', table '" << query.Table << "', queue size: '" << GetPendingQueryCount() << "'.";
+#endif /* I2_DEBUG */
+
 			m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::InternalExecuteMultipleQueries, this, queries), query.Priority);
 			return;
 		}
@@ -896,6 +943,13 @@ void IdoMysqlConnection::InternalExecuteQuery(const DbQuery& query, int typeOver
 
 	/* check if there are missing object/insert ids and re-enqueue the query */
 	if (!CanExecuteQuery(query)) {
+
+#ifdef I2_DEBUG /* I2_DEBUG */
+		Log(LogDebug, "IdoMysqlConnection")
+		    << "Scheduling execute query task again: Cannot execute query now. Type '"
+		    << typeOverride << "', table '" << query.Table << "', queue size: '" << GetPendingQueryCount() << "'.";
+#endif /* I2_DEBUG */
+
 		m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::InternalExecuteQuery, this, query, typeOverride), query.Priority);
 		return;
 	}
@@ -912,6 +966,13 @@ void IdoMysqlConnection::InternalExecuteQuery(const DbQuery& query, int typeOver
 
 		for (const Dictionary::Pair& kv : query.WhereCriteria) {
 			if (!FieldToEscapedString(kv.first, kv.second, &value)) {
+
+#ifdef I2_DEBUG /* I2_DEBUG */
+				Log(LogDebug, "IdoMysqlConnection")
+				    << "Scheduling execute query task again: Cannot execute query now. Type '"
+				    << typeOverride << "', table '" << query.Table << "', queue size: '" << GetPendingQueryCount() << "'.";
+#endif /* I2_DEBUG */
+
 				m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::InternalExecuteQuery, this, query, -1), query.Priority);
 				return;
 			}
@@ -984,6 +1045,13 @@ void IdoMysqlConnection::InternalExecuteQuery(const DbQuery& query, int typeOver
 				continue;
 
 			if (!FieldToEscapedString(kv.first, kv.second, &value)) {
+
+#ifdef I2_DEBUG /* I2_DEBUG */
+				Log(LogDebug, "IdoMysqlConnection")
+				    << "Scheduling execute query task again: Cannot extract required INSERT/UPDATE fields, key '"
+				    << kv.first << "', val '" << kv.second << "', type " << typeOverride << ", table '" << query.Table << "'.";
+#endif /* I2_DEBUG */
+
 				m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::InternalExecuteQuery, this, query, -1), query.Priority);
 				return;
 			}
@@ -1039,6 +1107,12 @@ void IdoMysqlConnection::FinishExecuteQuery(const DbQuery& query, int type, bool
 
 void IdoMysqlConnection::CleanUpExecuteQuery(const String& table, const String& time_column, double max_age)
 {
+#ifdef I2_DEBUG /* I2_DEBUG */
+		Log(LogDebug, "IdoMysqlConnection")
+		    << "Rescheduling cleanup query for table '" << table << "' and column '"
+		    << time_column << "'. max_age is set to '" << max_age << "'.";
+#endif /* I2_DEBUG */
+
 	m_QueryQueue.Enqueue(boost::bind(&IdoMysqlConnection::InternalCleanUpExecuteQuery, this, table, time_column, max_age), PriorityLow, true);
 }
 
-- 
2.40.0