Rollback is implemented and all existing tests pass.(The existing failure test cases work, but more test cases need to be added).

git-svn-id: https://asterixdb.googlecode.com/svn/branches/asterix_lsm_stabilization@979 eaa15691-b419-025a-1212-ee371bd00084
diff --git a/asterix-app/src/test/resources/runtimets/queries/failure/delete.aql b/asterix-app/src/test/resources/runtimets/queries/failure/delete.aql
index cd4a922..3da88f8 100644
--- a/asterix-app/src/test/resources/runtimets/queries/failure/delete.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/failure/delete.aql
@@ -29,7 +29,7 @@
 using "edu.uci.ics.asterix.external.dataset.adapter.NCFileSystemAdapter"
 (("path"="nc1://data/tpch0.001/lineitem.tbl"),("format"="delimited-text"),("delimiter"="|")) pre-sorted;
 
-delete $l from dataset LineItem where $l.l_orderkey>=10 die after 1500;
+delete $l from dataset LineItem where $l.l_orderkey>=10 die after 1000;
 
 write output to nc1:"rttest/failure_delete.adm";      
 for $c in dataset('LineItem')