cannot use serializations that do not clone into object, or serializations
without no arg constructors with reduce driver
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Key: MRUNIT-77
URL: https://issues.apache.org/jira/browse/MRUNIT-77
Project: MRUnit
Issue Type: Bug
Affects Versions: 0.8.1
Reporter: Jim Donofrio
Assignee: Jim Donofrio
Fix For: 1.0.0
@Test
public void testJavaSerialization() {
ReduceDriver<Integer, Integer, Integer, Integer> driver =
ReduceDriver.newReduceDriver(new IdentityReducer<Integer, Integer>());
Configuration conf = new Configuration();
conf.set("io.serializations",
"org.apache.hadoop.io.serializer.JavaSerialization");
driver.setConfiguration(conf);
driver.withInputKey(1)
.withInputValue(2)
.withInputValue(3)
.withInputValue(4)
.withOutput(1, 2)
.withOutput(1, 3)
.withOutput(1, 4)
.runTest();
}
The above test fails because the result of copy(next, value, conf) needs to be
reassigned to value for serializations such as java serialization that dont
change the copy argument. This also fails because of the lack of a no arg
constructor which breaks the call to ReflectionUtils.newInstance(klass, conf)
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