use of org.apache.ignite.raft.jraft.Iterator in project ignite-3 by apache.
the class FSMCallerTest method testOnCommitted.
@Test
public void testOnCommitted() throws Exception {
final LogEntry log = new LogEntry(EntryType.ENTRY_TYPE_DATA);
log.getId().setIndex(11);
log.getId().setTerm(1);
Mockito.when(this.logManager.getTerm(11)).thenReturn(1L);
Mockito.when(this.logManager.getEntry(11)).thenReturn(log);
final ArgumentCaptor<Iterator> itArg = ArgumentCaptor.forClass(Iterator.class);
assertTrue(this.fsmCaller.onCommitted(11));
this.fsmCaller.flush();
assertEquals(this.fsmCaller.getLastAppliedIndex(), 11);
Mockito.verify(this.fsm).onApply(itArg.capture());
final Iterator it = itArg.getValue();
assertFalse(it.hasNext());
assertEquals(it.getIndex(), 12);
Mockito.verify(this.logManager).setAppliedId(new LogId(11, 1));
assertTrue(this.fsmCaller.getError().getStatus().isOk());
}
use of org.apache.ignite.raft.jraft.Iterator in project ignite-3 by apache.
the class ItNodeTest method testRollbackStateMachineWithReadIndex_Issue317.
/**
* Test rollback stateMachine with readIndex for issue 317: https://github.com/sofastack/sofa-jraft/issues/317
*/
@Test
public void testRollbackStateMachineWithReadIndex_Issue317() throws Exception {
Endpoint addr = new Endpoint(TestUtils.getLocalAddress(), TestUtils.INIT_PORT);
PeerId peer = new PeerId(addr, 0);
NodeOptions nodeOptions = createNodeOptions();
CountDownLatch applyCompleteLatch = new CountDownLatch(1);
CountDownLatch applyLatch = new CountDownLatch(1);
CountDownLatch readIndexLatch = new CountDownLatch(1);
AtomicInteger currentValue = new AtomicInteger(-1);
String errorMsg = testInfo.getDisplayName();
StateMachine fsm = new StateMachineAdapter() {
@Override
public void onApply(Iterator iter) {
// Notify that the #onApply is preparing to go.
readIndexLatch.countDown();
// Wait for submitting a read-index request
try {
applyLatch.await();
} catch (InterruptedException e) {
fail();
}
int i = 0;
while (iter.hasNext()) {
byte[] data = iter.next().array();
int v = Bits.getInt(data, 0);
assertEquals(i++, v);
currentValue.set(v);
}
if (i > 0) {
// rollback
currentValue.set(i - 1);
iter.setErrorAndRollback(1, new Status(-1, errorMsg));
applyCompleteLatch.countDown();
}
}
};
nodeOptions.setFsm(fsm);
nodeOptions.setLogUri(dataPath + File.separator + "log");
nodeOptions.setRaftMetaUri(dataPath + File.separator + "meta");
nodeOptions.setSnapshotUri(dataPath + File.separator + "snapshot");
nodeOptions.setInitialConf(new Configuration(Collections.singletonList(peer)));
RaftGroupService service = createService("unittest", peer, nodeOptions);
Node node = service.start();
assertEquals(1, node.listPeers().size());
assertTrue(node.listPeers().contains(peer));
while (!node.isLeader()) ;
int n = 5;
{
// apply tasks
for (int i = 0; i < n; i++) {
byte[] b = new byte[4];
Bits.putInt(b, 0, i);
node.apply(new Task(ByteBuffer.wrap(b), null));
}
}
AtomicInteger readIndexSuccesses = new AtomicInteger(0);
{
// Submit a read-index, wait for #onApply
readIndexLatch.await();
CountDownLatch latch = new CountDownLatch(1);
node.readIndex(null, new ReadIndexClosure() {
@Override
public void run(Status status, long index, byte[] reqCtx) {
try {
if (status.isOk())
readIndexSuccesses.incrementAndGet();
else {
assertTrue(status.getErrorMsg().contains(errorMsg) || status.getRaftError() == RaftError.ETIMEDOUT || status.getErrorMsg().contains("Invalid state for readIndex: STATE_ERROR"), "Unexpected status: " + status);
}
} finally {
latch.countDown();
}
}
});
// We have already submit a read-index request,
// notify #onApply can go right now
applyLatch.countDown();
// The state machine is in error state, the node should step down.
waitForCondition(() -> !node.isLeader(), 5_000);
latch.await();
applyCompleteLatch.await();
}
// No read-index request succeed.
assertEquals(0, readIndexSuccesses.get());
assertTrue(n - 1 >= currentValue.get());
}
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