diff --git a/common/dllserver/dllserver.cpp b/common/dllserver/dllserver.cpp
index 46cef2609f4..8ab43058dcc 100644
--- a/common/dllserver/dllserver.cpp
+++ b/common/dllserver/dllserver.cpp
@@ -785,7 +785,10 @@ void initDllServer(const char * localRoot)
 {
     CriticalBlock b(dllServerCrit);
     ::Release(dllServer);
-    dllServer = new DllServer(localRoot);
+    if (isContainerized())
+        dllServer = new SharedVolumeDllServer(localRoot);
+    else
+        dllServer = new DllServer(localRoot);
 }
 
 
diff --git a/dali/base/dadfs.cpp b/dali/base/dadfs.cpp
index 030af8e53ca..5bed33ac926 100644
--- a/dali/base/dadfs.cpp
+++ b/dali/base/dadfs.cpp
@@ -6271,22 +6271,27 @@ class CDistributedSuperFile: public CDistributedFileBase<IDistributedSuperFile>
     virtual IDistributedFile &querySubFile(unsigned idx,bool sub) override
     {
         CriticalBlock block (sect);
-        if (sub) {
-            ForEachItemIn(i,subfiles) {
+        if (sub)
+        {
+            unsigned subfilen = idx;
+            ForEachItemIn(i,subfiles)
+            {
                 IDistributedFile &f=subfiles.item(i);
                 IDistributedSuperFile *super = f.querySuperFile();
-                if (super) {
+                if (super)
+                {
                     unsigned ns = super->numSubFiles(true);
-                    if (ns>idx)
-                        return super->querySubFile(idx,true);
-                    idx -= ns;
+                    if (ns>subfilen)
+                        return super->querySubFile(subfilen,true);
+                    subfilen -= ns;
                 }
-                else if (idx--==0)
+                else if (subfilen--==0)
                     return f;
             }
-            // fall through to error
+            throw makeStringExceptionV(-1,"CDistributedSuperFile::querySubFile(%u) for superfile %s - subfile doesn't exist ", idx, logicalName.get());
         }
-        return subfiles.item(idx);
+        else
+            return subfiles.item(idx);
     }
 
     virtual IDistributedFile *querySubFileNamed(const char *name, bool sub) override
diff --git a/ecl/hqlcpp/hqlres.cpp b/ecl/hqlcpp/hqlres.cpp
index 9f10a2cb6b4..f3445589360 100644
--- a/ecl/hqlcpp/hqlres.cpp
+++ b/ecl/hqlcpp/hqlres.cpp
@@ -648,6 +648,7 @@ bool ResourceManager::flush(StringBuffer &filename, const char *basename, bool f
         }
         fwrite(s.data.get(), 1, s.data.length(), bin);
         fclose(bin);
+        fprintf(f, " .size %s,%u\n", label.str(), (unsigned)s.data.length());
     }
     fclose(f);
 #endif
diff --git a/system/jlib/jstats.cpp b/system/jlib/jstats.cpp
index 0f5b4618932..4dcab0b9ef1 100644
--- a/system/jlib/jstats.cpp
+++ b/system/jlib/jstats.cpp
@@ -2892,7 +2892,7 @@ void CRuntimeStatisticCollection::deserializeMerge(MemoryBuffer& in)
     in.read(hasNested);
     if (hasNested)
     {
-        ensureNested().deserializeMerge(in);
+        ensureNested().deserialize(in);
     }
 }