diff --git a/ndb/include/kernel/signaldata/TupFrag.hpp b/ndb/include/kernel/signaldata/TupFrag.hpp
index fc88dacd48f..c0ce22651aa 100644
--- a/ndb/include/kernel/signaldata/TupFrag.hpp
+++ b/ndb/include/kernel/signaldata/TupFrag.hpp
@@ -105,8 +105,6 @@ public:
   enum ErrorCode {
     NoError = 0,
     InvalidRequest = 800,
-    NoFreeFragmentOper = 830,
-    NoFreeIndexFragment = 852,
     NoFreeFragment = 604,
     NoFreeAttributes = 827
   };
diff --git a/ndb/src/kernel/blocks/dbtux/DbtuxMeta.cpp b/ndb/src/kernel/blocks/dbtux/DbtuxMeta.cpp
index b30b555ccad..9495c487847 100644
--- a/ndb/src/kernel/blocks/dbtux/DbtuxMeta.cpp
+++ b/ndb/src/kernel/blocks/dbtux/DbtuxMeta.cpp
@@ -53,11 +53,7 @@ Dbtux::execTUXFRAGREQ(Signal* signal)
     }
     // get new operation record
     c_fragOpPool.seize(fragOpPtr);
-    if (fragOpPtr.i == RNIL) {
-      jam();
-      errorCode = TuxFragRef::NoFreeFragmentOper;
-      break;
-    }
+    ndbrequire(fragOpPtr.i != RNIL);
     new (fragOpPtr.p) FragOp();
     fragOpPtr.p->m_userPtr = req->userPtr;
     fragOpPtr.p->m_userRef = req->userRef;
@@ -66,11 +62,7 @@ Dbtux::execTUXFRAGREQ(Signal* signal)
     fragOpPtr.p->m_fragNo = indexPtr.p->m_numFrags;
     fragOpPtr.p->m_numAttrsRecvd = 0;
     // check if index has place for more fragments
-    if (indexPtr.p->m_numFrags == MaxIndexFragments) {
-      jam();
-      errorCode = TuxFragRef::NoFreeIndexFragment;
-      break;
-    }
+    ndbrequire(indexPtr.p->m_numFrags < MaxIndexFragments);
     // seize new fragment record
     FragPtr fragPtr;
     c_fragPool.seize(fragPtr);