Amir Sanjar created HADOOP-9465:
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Summary: TestJobImpl->testJobNoTasks fails ..
Key: HADOOP-9465
URL: https://issues.apache.org/jira/browse/HADOOP-9465
Project: Hadoop Common
Issue Type: Bug
Components: conf
Affects Versions: 2.0.3-alpha
Environment: Linux + IBM JAVA 6
Reporter: Amir Sanjar
I am not sure if this is a testcase or a design issue. During execution of
TestJobImpl->testJobNoTasks() there is an assertion made based on the order of
key/value pairs stored in adjacency list. However adjacency list was created by
Configuration->getValByRegex() as a HashMap (order is not guaranteed):
Testcase:
JobSubmittedEventHandler jseHandler = new JobSubmittedEventHandler("testId",
"testName", "testNodeName", "\"key2\"=\"value2\" \"key1\"=\"value1\" ");
....
....
try {
Assert.assertTrue(jseHandler.getAssertValue()); <===
Configuration->getValByRegex():
public Map<String,String> getValByRegex(String regex) {
Pattern p = Pattern.compile(regex);
Map<String,String> result = new HashMap<String,String>(); <=======
as we all know, HashMap makes absolutely no guarantees about the iteration
order. It can (and will) even change completely when new elements are added.
Changing HashMap to LinkedHashMap fixes the ordering inconsistency, however
with a small performance side effect.
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