fix fault-tolerance and error reporting to handle disk failures
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankReal2/part-0 b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal2/part-0
new file mode 100755
index 0000000..d135b86
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal2/part-0
@@ -0,0 +1,10 @@
+0 0.008290140026154316
+2 0.14646839195826472
+4 0.03976979906329426
+6 0.015736276824953852
+8 0.010628239626209894
+10 0.008290140026154316
+12 0.14646839195826472
+14 0.03976979906329426
+16 0.015736276824953852
+18 0.010628239626209894