testlatency.js

Author: dwight

replication/test_latency.js

@@ -11,7 +11,10 @@
 */
 
 slave = db;
-assert(!slave.runCommand("ismaster").ismaster);
+if (slave.runCommand("ismaster").ismaster) {
+    print("db from command line should be the slave -- and it isn't -- see comments in this .js file. exiting");
+    quit();
+}
 print("slave ok");
 
 master = new Mongo("localhost").getDB("test");
@@ -43,7 +46,7 @@ function latencytest() {
         slaveobj = t.findOne();
         if (slaveobj && slaveobj.y == obj.y)
             break;
-        sleep(2); // wait 2 ms
+        sleep(1);
     }
 }
 
@@ -55,8 +58,8 @@ function run() {
 }
 
 print();
-print("try running:");
-print(" ptime( function(){T.findOne()} )");
-print(" ptime( function(){t.findOne()} )");
-print(" run()");
+print("try running these:");
+print(" ptime( function(){T.findOne()} ) // should be quick as hits only 1 server");
+print(" ptime( function(){t.findOne()} ) // should be quick");
+print(" run() // takes a little time awaits full replication");
 print();

replication/tl.bat

@@ -0,0 +1,5 @@
+mkdir \data\a
+mkdir \data\b
+start mongod --master --dbpath c:\data\a
+start mongod --slave  --dbpath c:\data\b --port 27000 --source localhost
+mongo --shell localhost:27000 test_latency.js

vs2010/snippets/snippets.sln

@@ -0,0 +1,15 @@
+
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual Studio 2010
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "replication", "replication", "{96D6995D-DBFC-4EBD-92F5-D9812F9C5B09}"
+	ProjectSection(SolutionItems) = preProject
+		..\..\replication\misc.js = ..\..\replication\misc.js
+		..\..\replication\test_latency.js = ..\..\replication\test_latency.js
+		..\..\replication\tl.bat = ..\..\replication\tl.bat
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal