1 files changed, 51 insertions, 0 deletions
diff --git a/jstests/slowNightly/large_chunk.js b/jstests/slowNightly/large_chunk.js
new file mode 100644
index 0000000..6cf40e3
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+++ b/jstests/slowNightly/large_chunk.js
@@ -0,0 +1,51 @@
+// Where we test operations dealing with large chunks
+
+// Starts a new sharding environment limiting the chunksize to 2GB.
+// Note that early splitting will start with a 1/4 of max size currently.  
+s = new ShardingTest( "large_chunk" , 2 , 2 , 1 , { chunksize : 2000 } );
+
+// take the balancer out of the equation
+s.config.settings.update( { _id: "balancer" }, { $set : { stopped: true } } , true );
+s.config.settings.find().forEach( printjson )
+db = s.getDB( "test" );
+
+//
+// Step 1 - Test moving a large chunk
+//
+
+// Turn on sharding on the 'test.foo' collection and generate a large chunk
+s.adminCommand( { enablesharding : "test" } );
+s.adminCommand( { shardcollection : "test.foo" , key : { _id : 1 } } );
+
+bigString = ""
+while ( bigString.length < 10000 )
+    bigString += "asdasdasdasdadasdasdasdasdasdasdasdasda";
+
+inserted = 0;
+num = 0;
+while ( inserted < ( 400 * 1024 * 1024 ) ){
+    db.foo.insert( { _id : num++ , s : bigString } );
+    inserted += bigString.length;
+}
+db.getLastError();
+assert.eq( 1 , s.config.chunks.count() , "step 1 - need one large chunk" );
+
+primary = s.getServer( "test" ).getDB( "test" );
+secondary = s.getOther( primary ).getDB( "test" );
+
+// Make sure that we don't move that chunk if it goes past what we consider the maximum chunk size
+print("Checkpoint 1a")
+max = 200 * 1024 * 1024;
+moveChunkCmd = { movechunk : "test.foo" , find : { _id : 1 } , to : secondary.getMongo().name , maxChunkSizeBytes : max };
+assert.throws( function() { s.adminCommand( moveChunkCmd ); } );
+
+// Move the chunk
+print("checkpoint 1b");
+before = s.config.chunks.find().toArray();
+s.adminCommand( { movechunk : "test.foo" , find : { _id : 1 } , to : secondary.getMongo().name } );
+after = s.config.chunks.find().toArray();
+assert.neq( before[0].shard , after[0].shard , "move chunk did not work" );
+
+s.config.changelog.find().forEach( printjson )
+
+s.stop();
+\ No newline at end of file