Bug#36180807 Autotest: testDict -n Bug13416603 I2 fails

Patch for 7.6 Only

Problem:
Test has two main purposes:
- Handle node failure during index stat update.
- Perform an Index stat update when not all nodes are up.

Fail is the second case, test inject error 18026 to all nodes and
then forces an index stat update to crash a node during handing of
SUB_TABLE_DATA in TRIX. Problem is that, as error is inserted in
all nodes, any automatic index stat update running on a different
node will crash it unintentionally.

Solution:
To prevent other than target node to crash due to error 18026 make
them clear the error when NODEFAIL_REP of target node is received.

Change-Id: Icff20dc67a1febddec1d6eb04b9a4ba548ff9111

Author: vinc13e

storage/ndb/src/kernel/blocks/dbdih/DbdihMain.cpp

@@ -9520,6 +9520,9 @@ void Dbdih::execNODE_FAILREP(Signal* signal)
   sendSignal(DBUTIL_REF, GSN_NODE_FAILREP, signal,
              NodeFailRep::SignalLength, JBB);
 
+  sendSignal(TRIX_REF, GSN_NODE_FAILREP, signal,
+             NodeFailRep::SignalLength, JBB);
+
   sendSignal(DBTUP_REF, GSN_NODE_FAILREP, signal,
              NodeFailRep::SignalLength, JBB);
 

storage/ndb/src/kernel/blocks/trix/Trix.cpp

@@ -81,6 +81,7 @@ Trix::Trix(Block_context &ctx)
   addRecSignal(GSN_STTOR,  &Trix::execSTTOR);
   addRecSignal(GSN_DUMP_STATE_ORD, &Trix::execDUMP_STATE_ORD);
   addRecSignal(GSN_DBINFO_SCANREQ, &Trix::execDBINFO_SCANREQ);
+  addRecSignal(GSN_NODE_FAILREP, &Trix::execNODE_FAILREP);
 
   // Index build
   addRecSignal(GSN_BUILD_INDX_IMPL_REQ, &Trix::execBUILD_INDX_IMPL_REQ);
@@ -187,6 +188,19 @@ void Trix::execSTTOR(Signal* signal)
   return;
 }//Trix::execSTTOR()
 
+void Trix::execNODE_FAILREP(Signal *signal) {
+  jamEntry();
+
+  if (signal->getNoOfSections() >= 1) {
+    SectionHandle handle(this, signal);
+    releaseSections(handle);
+  }
+
+  if (ERROR_INSERTED(18026)) {
+    CLEAR_ERROR_INSERT_VALUE;
+  }
+}
+
 // Debugging
 void
 Trix::execDUMP_STATE_ORD(Signal* signal)

storage/ndb/src/kernel/blocks/trix/Trix.hpp

@@ -267,6 +267,9 @@ class Trix : public SimulatedBlock
   void execREAD_CONFIG_REQ(Signal* signal);
   void execSTTOR(Signal* signal);
 
+  // Node management
+  void execNODE_FAILREP(Signal *signal);
+
   // Debugging
   void execDUMP_STATE_ORD(Signal* signal);