@Test
public void useOldVSpecInducesExpectedFailure() throws Exception {
VolumeSpecification volumeSpec;
final Configuration configuration = _persistit.getConfiguration();
_persistit.close();
int remainingJournalFiles = 0;
configuration.setUseOldVSpec(true);
for (int i = 5; --i >= 0; ) {
final Persistit db = new Persistit(_config);
try {
volumeSpec =
new VolumeSpecification(
DATA_PATH + "/hwdemo" + i, null, 16384, 1, 1000, 1, true, false, false);
db.loadVolume(volumeSpec);
final Exchange dbex = db.getExchange("hwdemo" + i, "greetings", true);
dbex.getKey().append("Hello");
dbex.getValue().put("World");
dbex.store();
dbex.getKey().to(Key.BEFORE);
db.releaseExchange(dbex);
} finally {
if (i == 0) {
db.copyBackPages();
}
remainingJournalFiles = db.getJournalManager().getJournalFileCount();
db.close();
}
}
assertTrue("Should be only one remaining journal file", remainingJournalFiles > 1);
}
@Override
public JournalInfo getJournalInfo() {
final JournalInfo info = new JournalInfo();
_persistit.getJournalManager().populateJournalInfo(info);
return info;
}
/**
* Controls whether Persistit copies page from the journal back to their volumes as fast as
* possible. Copying consumes disk I/O operations, so normally the copier thread pauses between
* copy operations to avoid saturating the disk. Once all pages have been copied, the fast copying
* flag is automatically turned off.
*
* @param fast <code>true</code> to copy pages at maximum speed.
* @throws RemoteException
*/
@Override
public void setJournalCopyingFast(final boolean fast) throws RemoteException {
_persistit.getJournalManager().setCopyingFast(fast);
}
/**
* Controls whether Persistit will suspend the thread that copies pages from the journal back to
* their respective Volumes. This flag is used by tools that provide on-line backup.
*
* @param suspended <code>true</code> to specify that Persistit will suspend journal copying;
* otherwise <code>false</code>.
*/
@Override
public void setAppendOnly(final boolean suspended) {
_persistit.getJournalManager().setAppendOnly(suspended);
}