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
diff --git a/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex2/part-1 b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex2/part-1
new file mode 100755
index 0000000..6976bc1
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/ConnectedComponentsRealComplex2/part-1
@@ -0,0 +1,13 @@
+1 0
+3 0
+5 0
+7 0
+9 0
+11 0
+13 0
+15 0
+17 0
+19 0
+21 21
+25 25
+27 27
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
diff --git a/pregelix/pregelix-example/src/test/resources/expected/PageRankReal2/part-1 b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal2/part-1
new file mode 100755
index 0000000..d3badee
--- /dev/null
+++ b/pregelix/pregelix-example/src/test/resources/expected/PageRankReal2/part-1
@@ -0,0 +1,10 @@
+1 0.15351528192471647
+3 0.08125113985998214
+5 0.0225041581462058
+7 0.012542224114863661
+9 0.009294348455354817
+11 0.15351528192471647
+13 0.08125113985998214
+15 0.0225041581462058
+17 0.012542224114863661
+19 0.009294348455354817