SERVER-29299 Add currentOp as parallel op during basicPlus.js

3 files changed, 12 insertions, 27 deletions

diff --git a/jstests/core/evalc.js b/jstests/core/evalc.js
deleted file mode 100644
index 0d55790afe3..00000000000
--- a/jstests/core/evalc.js
+++ /dev/null
@@ -1,26 +0,0 @@
-t = db.jstests_evalc;
-t.drop();
-
-t2 = db.evalc_done;
-t2.drop();
-
-for (i = 0; i < 10; ++i) {
-    t.save({i: i});
-}
-
-// SERVER-1610
-
-assert.eq(0, t2.count(), "X1");
-
-s = startParallelShell(
-    "print( 'starting forked:' + Date() ); for ( i=0; i<10*1000; i++ ){ db.currentOp(); } print( 'ending forked:' + Date() ); db.evalc_done.insert( { x : 1 } ); ");
-
-print("starting eval: " + Date());
-assert.soon(function() {
-    db.eval("db.jstests_evalc.count( {i:10} );");
-    return t2.count() > 0;
-}, 'parallel shell failed to update ' + t2.getFullName(), 120000, 10);
-
-print("end eval: " + Date());
-
-s();
diff --git a/jstests/libs/parallelTester.js b/jstests/libs/parallelTester.js
index 672fa4a97b4..db784ab66c1 100644
--- a/jstests/libs/parallelTester.js
+++ b/jstests/libs/parallelTester.js
@@ -72,6 +72,10 @@ if (typeof _threadInject != "undefined") {
         this._add("t.remove( " + tojson(obj) + " )");
     };
 
+    EventGenerator.prototype.addCurrentOp = function() {
+        this._add("db.currentOp()");
+    };
+
     EventGenerator.prototype.addUpdate = function(objOld, objNew) {
         this._add("t.update( " + tojson(objOld) + ", " + tojson(objNew) + " )");
     };
@@ -101,7 +105,11 @@ if (typeof _threadInject != "undefined") {
         var collectionName = args.shift();
         var host = args.shift();
         var m = new Mongo(host);
-        var t = m.getDB("test")[collectionName];
+
+        // We define 'db' and 't' as local variables so that calling eval() on the stringified
+        // JavaScript expression 'args[i][1]' can take advantage of using them.
+        var db = m.getDB("test");
+        var t = db[collectionName];
         for (var i in args) {
             sleep(args[i][0]);
             eval(args[i][1]);
diff --git a/jstests/parallel/basicPlus.js b/jstests/parallel/basicPlus.js
index 2ecb20d6c21..778137ca0d8 100644
--- a/jstests/parallel/basicPlus.js
+++ b/jstests/parallel/basicPlus.js
@@ -21,6 +21,9 @@ for (var i = 4; i < 8; ++i) {
                         expected % 1000 == 0,
                         expected % 500 == 0);
         g.addInsert({_id: j});
+        // Add currentOp commands running in parallel. Historically there have been many race
+        // conditions between various commands and the currentOp command.
+        g.addCurrentOp();
     }
     t.add(EventGenerator.dispatch, g.getEvents());
 }