bk commit into 5.1 tree (tomas:1.2501) BUG#27254

[tomas]

Below is the list of changes that have just been committed into a local
5.1 repository of tomas. When tomas does a push these changes will
be propagated to the main repository and, within 24 hours after the
push, to the public repository.
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see http://dev.mysql.com/doc/mysql/en/installing-source-tree.html

ChangeSet@stripped, 2007-03-23 17:12:06+01:00, tomas@stripped +2 -0
  BUG#27254: Single User Mode.Mysql hangs if it tries delete a ndb table

  sql/ha_ndbcluster.cc@stripped, 2007-03-23 17:12:04+01:00, tomas@stripped +17
-8
    set single user mode on ndb schema table

  storage/ndb/src/ndbapi/NdbDictionaryImpl.cpp@stripped, 2007-03-23 17:12:04+01:00,
tomas@stripped +1 -1
    dbug print

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	tomas
# Host:	whalegate.ndb.mysql.com
# Root:	/home/tomas/mysql-5.1-single-user

--- 1.162/storage/ndb/src/ndbapi/NdbDictionaryImpl.cpp	2007-03-23 14:17:04 +01:00
+++ 1.163/storage/ndb/src/ndbapi/NdbDictionaryImpl.cpp	2007-03-23 17:12:04 +01:00
@@ -51,7 +51,7 @@
 
 #define ERR_RETURN(a,b) \
 {\
-   DBUG_PRINT("exit", ("error %d", (a).code));\
+   DBUG_PRINT("exit", ("error %d  return %d", (a).code, b));\
    DBUG_RETURN(b);\
 }
 

--- 1.419/sql/ha_ndbcluster.cc	2007-03-23 08:20:31 +01:00
+++ 1.420/sql/ha_ndbcluster.cc	2007-03-23 17:12:04 +01:00
@@ -4742,6 +4742,7 @@
   bool create_from_engine= (create_info->table_options &
HA_OPTION_CREATE_FROM_ENGINE);
   bool is_truncate= (thd->lex->sql_command == SQLCOM_TRUNCATE);
   char tablespace[FN_LEN];
+  NdbDictionary::Table::SingleUserMode single_user_mode=
NdbDictionary::Table::SingleUserModeLocked;
 
   DBUG_ENTER("ha_ndbcluster::create");
   DBUG_PRINT("enter", ("name: %s", name));
@@ -4793,19 +4794,23 @@
     schema distribution table is setup
     ( unless it is a creation of the schema dist table itself )
   */
-  if (!ndb_schema_share &&
-      !(strcmp(m_dbname, NDB_REP_DB) == 0 &&
-        strcmp(m_tabname, NDB_SCHEMA_TABLE) == 0))
+  if (!ndb_schema_share)
   {
-    DBUG_PRINT("info", ("Schema distribution table not setup"));
-    DBUG_RETURN(HA_ERR_NO_CONNECTION);
+    if (!(strcmp(m_dbname, NDB_REP_DB) == 0 &&
+          strcmp(m_tabname, NDB_SCHEMA_TABLE) == 0))
+    {
+      DBUG_PRINT("info", ("Schema distribution table not setup"));
+      DBUG_RETURN(HA_ERR_NO_CONNECTION);
+    }
+    single_user_mode = NdbDictionary::Table::SingleUserModeReadWrite;
   }
 #endif /* HAVE_NDB_BINLOG */
 
   DBUG_PRINT("table", ("name: %s", m_tabname));  
   tab.setName(m_tabname);
   tab.setLogging(!(create_info->options & HA_LEX_CREATE_TMP_TABLE));    
-   
+  tab.setSingleUserMode(single_user_mode);
+
   // Save frm data for this table
   if (readfrm(name, &data, &length))
     DBUG_RETURN(1);
@@ -5569,6 +5574,7 @@
     {
       ndb_table_id= h->m_table->getObjectId();
       ndb_table_version= h->m_table->getObjectVersion();
+      DBUG_PRINT("info", ("success 1"));
     }
     else
     {
@@ -5582,6 +5588,7 @@
           break;
       }
       res= ndb_to_mysql_error(&dict->getNdbError());
+      DBUG_PRINT("info", ("error(1) %u", res));
     }
     h->release_metadata(thd, ndb);
   }
@@ -5598,6 +5605,8 @@
         {
           ndb_table_id= ndbtab_g.get_table()->getObjectId();
           ndb_table_version= ndbtab_g.get_table()->getObjectVersion();
+          DBUG_PRINT("info", ("success 2"));
+          break;
         }
         else
         {
@@ -5617,8 +5626,8 @@
           }
         }
       }
-      else
-        res= ndb_to_mysql_error(&dict->getNdbError());
+      res= ndb_to_mysql_error(&dict->getNdbError());
+      DBUG_PRINT("info", ("error(2) %u", res));
       break;
     }
   }