fix fault-tolerance and error reporting to handle disk failures
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex2/part-0 b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex2/part-0
new file mode 100755
index 0000000..2c975de
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex2/part-0
@@ -0,0 +1,10 @@
+0	0
+2	0
+4	0
+6	0
+8	0
+10	0
+12	0
+14	0
+16	0
+18	0