Github user mxm commented on a diff in the pull request:
https://github.com/apache/flink/pull/2618#discussion_r83022623
--- Diff:
flink-tests/src/test/java/org/apache/flink/test/checkpointing/ContinuousFileProcessingCheckpointITCase.java
---
@@ -257,74 +190,158 @@ public void open(Configuration parameters) throws
Exception {
long failurePosMax = (long) (0.7 * LINES_PER_FILE);
elementsToFailure = (new Random().nextLong() %
(failurePosMax - failurePosMin)) + failurePosMin;
-
- if (elementCounter >= NO_OF_FILES * LINES_PER_FILE) {
- finalCollectedContent = new HashMap<>();
- for (Map.Entry<Integer, Set<String>> result:
collectedContent.entrySet()) {
-
finalCollectedContent.put(result.getKey(), new ArrayList<>(result.getValue()));
- }
- throw new SuccessException();
- }
- }
-
- @Override
- public void close() {
- try {
- super.close();
- } catch (Exception e) {
- e.printStackTrace();
- }
}
@Override
public void invoke(String value) throws Exception {
- int fileIdx =
Character.getNumericValue(value.charAt(0));
+ int fileIdx = getFileIdx(value);
- Set<String> content = collectedContent.get(fileIdx);
+ Set<String> content = actualContent.get(fileIdx);
if (content == null) {
content = new HashSet<>();
- collectedContent.put(fileIdx, content);
+ actualContent.put(fileIdx, content);
}
+ // detect duplicate lines.
if (!content.add(value + "\n")) {
fail("Duplicate line: " + value);
System.exit(0);
}
-
elementCounter++;
+
+ // this is termination
if (elementCounter >= NO_OF_FILES * LINES_PER_FILE) {
- finalCollectedContent = new HashMap<>();
- for (Map.Entry<Integer, Set<String>> result:
collectedContent.entrySet()) {
-
finalCollectedContent.put(result.getKey(), new ArrayList<>(result.getValue()));
- }
+ actualCollectedContent = actualContent;
throw new SuccessException();
}
- count++;
- if (!hasFailed) {
+ // add some latency so that we have at least one
checkpoint in
+ if (!hasFailed && successfulCheckpoints == 0) {
Thread.sleep(2);
- if (numSuccessfulCheckpoints >= 1 && count >=
elementsToFailure) {
- hasFailed = true;
- throw new Exception("Task Failure");
- }
+ }
+
+ // simulate a node failure
+ if (!hasFailed && successfulCheckpoints > 0 &&
elementCounter >= elementsToFailure) {
--- End diff --
Is it assured that a checkpoint has been taken place? Or is the exception
simply skipped here?
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