@Test
public void testDoubleOpenWriteFailure() throws Exception {
log.info("testDoubleOpenWriteFailure1");
// what we do here is to make sure that if we're
// unable to roll files, by forcing path in TestTextFileWriter,
// we wont get error from hadoop which would look like
// java.io.FileNotFoundException: ID mismatch. Request id and saved id: 16399 , 16400
// which happens if two writers use same file at a same time
// and file is opened in overwrite mode.
String[] dataArray = new String[] {DATA10};
TestTextFileWriter writer1 = new TestTextFileWriter(getConfiguration(), testDefaultPath, null);
writer1.setMaxOpenAttempts(1);
writer1.setFileNamingStrategy(new RollingFileNamingStrategy());
TestTextFileWriter writer2 = new TestTextFileWriter(getConfiguration(), testDefaultPath, null);
writer2.setFileNamingStrategy(new RollingFileNamingStrategy());
writer2.setMaxOpenAttempts(1);
Exception catched = null;
try {
TestUtils.writeData(writer1, dataArray, false);
TestUtils.writeData(writer2, dataArray, false);
} catch (Exception e) {
catched = e;
}
TestUtils.close(writer1);
TestUtils.close(writer2);
assertThat(catched, instanceOf(StoreException.class));
assertThat(catched.getMessage(), containsString("We've reached"));
}
@Test
public void testDoubleOpenWriteFailureShouldNotHappen() throws Exception {
// mostly similar that testDoubleOpenWriteFailure() but
// we don't force the path so rollover should work
String[] dataArray = new String[] {DATA10};
TextFileWriter writer1 = new TextFileWriter(getConfiguration(), testDefaultPath, null);
writer1.setFileNamingStrategy(new RollingFileNamingStrategy());
TextFileWriter writer2 = new TextFileWriter(getConfiguration(), testDefaultPath, null);
writer2.setFileNamingStrategy(new RollingFileNamingStrategy());
TestUtils.writeData(writer1, dataArray, false);
TestUtils.writeData(writer2, dataArray, false);
TestUtils.close(writer1);
TestUtils.close(writer2);
// we're ok if we don't get exceptions
}