Fix for avoiding gettin Invalid schema object version when doing local changes

2 files changed, 43 insertions, 15 deletions

diff --git a/sql/ha_ndbcluster.cc b/sql/ha_ndbcluster.cc
index 8c12cccf5ee..0d6bfcb9d0d 100644
--- a/sql/ha_ndbcluster.cc
+++ b/sql/ha_ndbcluster.cc
@@ -331,11 +331,14 @@ void ha_ndbcluster::no_uncommitted_rows_reset(THD *thd)
     #   The mapped error code
 */
 
-void ha_ndbcluster::invalidateDictionaryCache()
+void ha_ndbcluster::invalidate_dictionary_cache(bool global)
 {
   NDBDICT *dict= get_ndb()->getDictionary();
   DBUG_PRINT("info", ("invalidating %s", m_tabname));
-  dict->invalidateTable(m_tabname);
+  if (global)
+    dict->invalidateTable(m_tabname);
+  else
+    dict->removeCachedTable(m_tabname);
   table->version=0L;			/* Free when thread is ready */
   /* Invalidate indexes */
   for (uint i= 0; i < table->keys; i++)
@@ -347,12 +350,21 @@ void ha_ndbcluster::invalidateDictionaryCache()
     switch(idx_type) {
     case(PRIMARY_KEY_ORDERED_INDEX):
     case(ORDERED_INDEX):
-      dict->invalidateIndex(index->getName(), m_tabname);
+      if (global)
+        dict->invalidateIndex(index->getName(), m_tabname);
+      else
+        dict->removeCachedIndex(index->getName(), m_tabname);
       break;      
     case(UNIQUE_ORDERED_INDEX):
-      dict->invalidateIndex(index->getName(), m_tabname);
+      if (global)
+        dict->invalidateIndex(index->getName(), m_tabname);
+      else
+        dict->removeCachedIndex(index->getName(), m_tabname);
     case(UNIQUE_INDEX):
-      dict->invalidateIndex(unique_index->getName(), m_tabname);
+      if (global)
+        dict->invalidateIndex(unique_index->getName(), m_tabname);
+      else
+        dict->removeCachedIndex(unique_index->getName(), m_tabname);
       break;
     case(PRIMARY_KEY_INDEX):
     case(UNDEFINED_INDEX):
@@ -371,7 +383,7 @@ int ha_ndbcluster::ndb_err(NdbConnection *trans)
   switch (err.classification) {
   case NdbError::SchemaError:
   {
-    invalidateDictionaryCache();
+    invalidate_dictionary_cache(TRUE);
 
     if (err.code==284)
     {
@@ -767,7 +779,13 @@ int ha_ndbcluster::get_metadata(const char *path)
 
     if (!(tab= dict->getTable(m_tabname)))
       ERR_RETURN(dict->getNdbError());
-    DBUG_PRINT("info", ("Table schema version: %d", tab->getObjectVersion()));
+    if (tab->getObjectStatus() == NdbDictionary::Object::Invalid)
+    {
+      invalidate_dictionary_cache(FALSE);
+      if (!(tab= dict->getTable(m_tabname)))
+         ERR_RETURN(dict->getNdbError());
+      DBUG_PRINT("info", ("Table schema version: %d", tab->getObjectVersion()));
+    }
     /*
       Compare FrmData in NDB with frm file from disk.
     */
@@ -786,7 +804,7 @@ int ha_ndbcluster::get_metadata(const char *path)
       if (!invalidating_ndb_table)
       {
 	DBUG_PRINT("info", ("Invalidating table"));
-        invalidateDictionaryCache();
+        invalidate_dictionary_cache(TRUE);
 	invalidating_ndb_table= TRUE;
       }
       else
@@ -812,7 +830,7 @@ int ha_ndbcluster::get_metadata(const char *path)
   if (error)
     DBUG_RETURN(error);
   
-  m_tableVersion= tab->getObjectVersion();
+  m_table_version= tab->getObjectVersion();
   m_table= (void *)tab; 
   m_table_info= NULL; // Set in external lock
   
@@ -3226,15 +3244,25 @@ int ha_ndbcluster::external_lock(THD *thd, int lock_type)
       void *tab_info;
       if (!(tab= dict->getTable(m_tabname, &tab_info)))
 	ERR_RETURN(dict->getNdbError());
-      DBUG_PRINT("info", ("Table schema version: %d", tab->getObjectVersion()));
-      if (m_table != (void *)tab || m_tableVersion != tab->getObjectVersion())
+      DBUG_PRINT("info", ("Table schema version: %d", 
+                          tab->getObjectVersion()));
+      // Check if thread has stale local cache
+      if (tab->getObjectStatus() == NdbDictionary::Object::Invalid)
+      {
+        invalidate_dictionary_cache(FALSE);
+        if (!(tab= dict->getTable(m_tabname)))
+          ERR_RETURN(dict->getNdbError());
+        DBUG_PRINT("info", ("Table schema version: %d", 
+                            tab->getObjectVersion()));
+      }
+      if (m_table != (void *)tab || m_table_version < tab->getObjectVersion())
       {
         /*
           The table has been altered, refresh the index list
         */
         build_index_list(ndb, table, ILBP_OPEN);  
         m_table= (void *)tab;
-        m_tableVersion = tab->getObjectVersion();
+        m_table_version = tab->getObjectVersion();
       }
       m_table_info= tab_info;
     }
@@ -4006,7 +4034,7 @@ ha_ndbcluster::ha_ndbcluster(TABLE *table_arg):
   m_active_trans(NULL),
   m_active_cursor(NULL),
   m_table(NULL),
-  m_tableVersion(-1),
+  m_table_version(-1),
   m_table_info(NULL),
   m_table_flags(HA_REC_NOT_IN_SEQ |
 		HA_NULL_IN_KEY |
diff --git a/sql/ha_ndbcluster.h b/sql/ha_ndbcluster.h
index ac2d27b9ec7..7de5dd503e7 100644
--- a/sql/ha_ndbcluster.h
+++ b/sql/ha_ndbcluster.h
@@ -203,7 +203,7 @@ class ha_ndbcluster: public handler
   void print_results();
 
   longlong get_auto_increment();
-  void invalidateDictionaryCache();
+  void invalidate_dictionary_cache(bool global);
   int ndb_err(NdbConnection*);
   bool uses_blob_value(bool all_fields);
 
@@ -215,7 +215,7 @@ class ha_ndbcluster: public handler
   NdbConnection *m_active_trans;
   NdbResultSet *m_active_cursor;
   void *m_table;
-  int m_tableVersion;
+  int m_table_version;
   void *m_table_info;
   char m_dbname[FN_HEADLEN];
   //char m_schemaname[FN_HEADLEN];