Bug #25275 SINGLE USER MODE prevents ALTER on non-ndb tables for other mysqld nodes

(part 1)
- add signal data
- add ref in dict on create/drop table/index

ndb/include/kernel/signaldata/AlterTable.hpp

@@ -130,7 +130,8 @@ public:
     NullablePrimaryKey = 740,
     UnsupportedChange = 741,
     BackupInProgress = 762,
-    IncompatibleVersions = 763
+    IncompatibleVersions = 763,
+    SingleUser = 299
   };
 
 private:

ndb/include/kernel/signaldata/CreateIndx.hpp

@@ -206,7 +206,8 @@ public:
     NotUnique = 4251,
     AllocationError = 4252,
     CreateIndexTableFailed = 4253,
-    DuplicateAttributes = 4258
+    DuplicateAttributes = 4258,
+    SingleUser = 299
   };
 
   CreateIndxConf m_conf;

ndb/include/kernel/signaldata/CreateTable.hpp

@@ -91,7 +91,8 @@ public:
     RecordTooBig = 738,
     InvalidPrimaryKeySize  = 739,
     NullablePrimaryKey = 740,
-    InvalidCharset = 743
+    InvalidCharset = 743,
+    SingleUser = 299
   };
 
 private:

ndb/include/kernel/signaldata/DropIndx.hpp

@@ -172,7 +172,8 @@ public:
     IndexNotFound = 4243,
     BadRequestType = 4247,
     InvalidName = 4248,
-    NotAnIndex = 4254
+    NotAnIndex = 4254,
+    SingleUser = 299
   };
   STATIC_CONST( SignalLength = DropIndxConf::SignalLength + 3 );
 

ndb/include/kernel/signaldata/DropTable.hpp

@@ -58,7 +58,8 @@ public:
     InvalidTableVersion = 241,
     DropInProgress      = 283,
     NoDropTableRecordAvailable = 1229,
-    BackupInProgress = 761
+    BackupInProgress = 761,
+    SingleUser = 299
   };
 };
 

ndb/src/kernel/blocks/dbdict/Dbdict.cpp

@@ -2910,6 +2910,15 @@ Dbdict::execCREATE_TABLE_REQ(Signal* signal){
       break;
     }
 
+    if(getNodeState().getSingleUserMode() &&
+       (refToNode(signal->getSendersBlockRef()) !=
+        getNodeState().getSingleUserApi()))
+    {
+      jam();
+      parseRecord.errorCode = CreateTableRef::SingleUser;
+      break;
+    }
+
     CreateTableRecordPtr createTabPtr;
     c_opCreateTable.seize(createTabPtr);
     
@@ -3072,6 +3081,15 @@ Dbdict::execALTER_TABLE_REQ(Signal* signal)
     return;
   }
   
+  if(getNodeState().getSingleUserMode() &&
+     (refToNode(signal->getSendersBlockRef()) !=
+      getNodeState().getSingleUserApi()))
+  {
+    jam();
+    alterTableRef(signal, req, AlterTableRef::SingleUser);
+    return;
+  }
+
   const TableRecord::TabState tabState = tablePtr.p->tabState;
   bool ok = false;
   switch(tabState){
@@ -5401,6 +5419,15 @@ Dbdict::execDROP_TABLE_REQ(Signal* signal){
     return;
   }
   
+  if(getNodeState().getSingleUserMode() &&
+     (refToNode(signal->getSendersBlockRef()) !=
+      getNodeState().getSingleUserApi()))
+  {
+    jam();
+    dropTableRef(signal, req, DropTableRef::SingleUser);
+    return;
+  }
+
   const TableRecord::TabState tabState = tablePtr.p->tabState;
   bool ok = false;
   switch(tabState){
@@ -6531,6 +6558,13 @@ Dbdict::execCREATE_INDX_REQ(Signal* signal)
         jam();
         tmperr = CreateIndxRef::Busy;
       }
+      else if(getNodeState().getSingleUserMode() &&
+              (refToNode(senderRef) !=
+               getNodeState().getSingleUserApi()))
+      {
+        jam();
+        tmperr = CreateIndxRef::SingleUser;
+      }
       if (tmperr != CreateIndxRef::NoError) {
 	releaseSections(signal);
 	OpCreateIndex opBusy;
@@ -7101,6 +7135,13 @@ Dbdict::execDROP_INDX_REQ(Signal* signal)
         jam();
         tmperr = DropIndxRef::Busy;
       }
+      else if(getNodeState().getSingleUserMode() &&
+              (refToNode(senderRef) !=
+               getNodeState().getSingleUserApi()))
+      {
+        jam();
+        tmperr = DropIndxRef::SingleUser;
+      }
       if (tmperr != DropIndxRef::NoError) {
 	err = tmperr;
 	goto error;

ndb/src/ndbapi/ndberror.c

@@ -264,6 +264,7 @@ ErrorBundle ErrorCodes[] = {
   /**
    * Application error
    */
+  { 299,  AE, "Operation not allowed or aborted due to single user mode" },
   { 763,  AE, "Alter table requires cluster nodes to have exact same version" },
   { 823,  AE, "Too much attrinfo from application in tuple manager" },
   { 831,  AE, "Too many nullable/bitfields in table definition" },