WL#2779 ndb_size.pl

Add display of minimum requirements for various cluster parameters
e.g. DataMemory, IndexMemory, MaxNoOfTables, MaxNoOfAttributes etc

and the memory usage because of them.


ndb/tools/ndb_size.pl:
  Computer minimum parameter settings (MaxNoOfTables, Attributes, Indexes, Triggers) and the memory usage because of these settings.
ndb/tools/ndb_size.tmpl:
  display parameters

ndb/tools/ndb_size.pl

@@ -64,6 +64,14 @@ my $tables  = $dbh->selectall_arrayref("show tables");
 
 my @table_size;
 
+my @dbDataMemory;
+my @dbIndexMemory;
+my @NoOfAttributes;
+my @NoOfIndexes;
+my @NoOfTables;
+$NoOfTables[$_]{val} = @{$tables} foreach 0..$#releases;
+
+
 sub align {
     my($to,@unaligned) = @_;
     my @aligned;
@@ -147,7 +155,10 @@ foreach(@{$tables})
 	elsif($type =~ /binary/ || $type =~ /char/)
 	{@realsize=($size,$size,$size)}
 	elsif($type =~ /text/ || $type =~ /blob/)
-	{@realsize=(256,256,1)} # FIXME check if 5.1 is correct
+	{
+	    @realsize=(256,256,1);
+	    $NoOfTables[$_]{val} += 1 foreach 0..$#releases; # blob uses table
+	} # FIXME check if 5.1 is correct
 
 	@realsize= align(4,@realsize);
 
@@ -265,7 +276,51 @@ foreach(@{$tables})
 	IndexMemory=>\@IndexMemory,
 	
     };
+
+    $dbDataMemory[$_]{val} += $DataMemory[$_]{val} foreach 0..$#releases;
+    $dbIndexMemory[$_]{val} += $IndexMemory[$_]{val} foreach 0..$#releases;
+    $NoOfAttributes[$_]{val} += @columns foreach 0..$#releases;
+    $NoOfIndexes[$_]{val} += @indexes foreach 0..$#releases;
+}
+
+my @NoOfTriggers;
+# for unique hash indexes
+$NoOfTriggers[$_]{val} += $NoOfIndexes[$_]{val}*3 foreach 0..$#releases;
+# for ordered index
+$NoOfTriggers[$_]{val} += $NoOfIndexes[$_]{val} foreach 0..$#releases;
+
+my @ParamMemory;
+foreach (0..$#releases) {
+    $ParamMemory[0]{releases}[$_]{val}= POSIX::ceil(200*$NoOfAttributes[$_]{val}/1024);
+    $ParamMemory[0]{name}= 'Attributes';
+
+    $ParamMemory[1]{releases}[$_]{val}= 20*$NoOfTables[$_]{val};
+    $ParamMemory[1]{name}= 'Tables';
+
+    $ParamMemory[2]{releases}[$_]{val}= 10*$NoOfIndexes[$_]{val};
+    $ParamMemory[2]{name}= 'OrderedIndexes';
+
+    $ParamMemory[3]{releases}[$_]{val}= 15*$NoOfIndexes[$_]{val};
+    $ParamMemory[3]{name}= 'UniqueHashIndexes';    
 }
 
 $template->param(tables => \@table_size);
+$template->param(Parameters => [{name=>'DataMemory (kb)',
+				 releases=>\@dbDataMemory},
+				{name=>'IndexMemory (kb)',
+				 releases=>\@dbIndexMemory},
+				{name=>'MaxNoOfTables',
+				 releases=>\@NoOfTables},
+				{name=>'MaxNoOfAttributes',
+				 releases=>\@NoOfAttributes},
+				{name=>'MaxNoOfOrderedIndexes',
+				 releases=>\@NoOfIndexes},
+				{name=>'MaxNoOfUniqueHashIndexes',
+				 releases=>\@NoOfIndexes},
+				{name=>'MaxNoOfTriggers',
+				 releases=>\@NoOfTriggers}
+				]
+		 );
+$template->param(ParamMemory => \@ParamMemory);
+
 print $template->output;

ndb/tools/ndb_size.tmpl

@@ -15,6 +15,46 @@ td,th { border: 1px solid black }
 
 <p>This information should be valid for MySQL 4.1 and 5.0. Since 5.1 is not a final release yet, the numbers should be used as a guide only.</p>
 
+<h2>Parameter Settings</h2>
+<p><b>NOTE</b> the configuration parameters below do not take into account system tables and other requirements.</p>
+<table>
+  <tr>
+    <th>Parameter</th>
+    <TMPL_LOOP NAME=releases>
+      <th><TMPL_VAR NAME=rel></th>
+    </TMPL_LOOP>
+  </tr>
+<TMPL_LOOP NAME=Parameters>
+  <tr>
+    <td><TMPL_VAR NAME=name></td>
+    <TMPL_LOOP NAME=releases>
+      <td><TMPL_VAR NAME=val></td>
+    </TMPL_LOOP>
+  </tr>
+</TMPL_LOOP>
+</table>
+
+<h2>Memory usage because of parameters</h2>
+
+<p>Usage is in kilobytes. Actual usage will vary as you should set the parameters larger than those listed in the table above.</p>
+<table>
+  <tr>
+    <th>Parameter</th>
+    <TMPL_LOOP NAME=releases>
+      <th><TMPL_VAR NAME=rel></th>
+    </TMPL_LOOP>
+  </tr>
+<TMPL_LOOP NAME=ParamMemory>
+  <tr>
+    <td><TMPL_VAR NAME=name></td>
+    <TMPL_LOOP NAME=releases>
+      <td><TMPL_VAR NAME=val></td>
+    </TMPL_LOOP>
+  </tr>
+</TMPL_LOOP>
+</table>
+
+<h2>Table List</h2>
 <ul>
 <TMPL_LOOP NAME="tables">
 <li><a href="#<TMPL_VAR NAME="table">"><TMPL_VAR NAME="table"></a></li>