if (current == State.HALF_OPEN) {
            int successes = halfOpenSuccesses.incrementAndGet();
            if (successes >= successThreshold) {
                if (state.compareAndSet(State.HALF_OPEN, State.CLOSED)) {
                    stateChangeTime.set(System.currentTimeMillis());
                    log.info("Circuit breaker {} closed after {} successful attempts", name, successes);
                }
            }
        }

        if (currentState == State.HALF_OPEN) {
            int successes = successCount.incrementAndGet();
            log.debug("[{}] Success in HALF_OPEN state ({}/{})", name, successes, successThreshold);

            if (successes >= successThreshold) {
                log.info("[{}] Circuit breaker closing after {} successful attempts", name, successes);
                transitionTo(State.CLOSED);
            }

        assertEquals(State.HALF_OPEN, circuitBreaker.getState(), "Should be in HALF_OPEN after first success");

        // Need successThreshold (2) consecutive successes to close the circuit
        // Second success should close the circuit (threshold is 2)
        result = circuitBreaker.executeWithCircuitBreaker(() -> "success 1");

                            breaker.call(() -> {
                                throw new RuntimeException("Test");
                            });
                        } else {
                            // Some successes
                            breaker.call(() -> "success");
                            successCount.incrementAndGet();
                        }
                    } catch (Exception e) {

		switch metric.Description.Name {
		case tierRequestsSuccess:
			succ += metric.Value
		case tierRequestsFailure:
			fail += metric.Value
		}
	}
	if int(succ) != expSuccess {
		t.Fatalf("Expected %d successes but got %f", expSuccess, succ)
	}
	if int(fail) != expFailure {
		t.Fatalf("Expected %d failures but got %f", expFailure, fail)
	}

			if ok1 != ok2 {
				t.Errorf("Expected %s, got %s", test.expectedErr, err)
			}
			if test.succmodTimes != nil {
				if !test.expectedSuccModTime.Equal(fi.SuccessorModTime) {
					t.Errorf("Expected successor mod time to be %v but got %v", test.expectedSuccModTime, fi.SuccessorModTime)
				}
				if test.expectedIsLatest != fi.IsLatest {
					t.Errorf("Expected IsLatest to be %v but got %v", test.expectedIsLatest, fi.IsLatest)

	replicationDecision string // internal representation of replication decision for use by DeleteObject handler
	// The total count of all versions of this object
	NumVersions int
	//  The modtime of the successor object version if any
	SuccessorModTime time.Time

	// Checksums added on upload.
	// Encoded, maybe encrypted.
	Checksum []byte

	// Inlined
	Inlined bool

	DataBlocks   int

	}

	// objProps represents properties that go beyond a single version
	type objProps struct {
		succModTime time.Time
		numVersions int
	}
	// Find the successor mod time and numVersions in quorum, otherwise leave the
	// candidate as found
	otherPropsMap := make(counterMap[objProps])
	var candidate FileInfo
	var found bool
	for i, hash := range metaHashes {

Then APIStar stopped to exist as a server and Starlette was created, and was a new better foundation for such a system. That was the final inspiration to build **FastAPI**.

I consider **FastAPI** a "spiritual successor" to APIStar, while improving and increasing the features, typing system, and other parts, based on the learnings from all these previous tools.

///

## Used by **FastAPI** { #used-by-fastapi }

- Added `started_user_namespaced_pods_total` and `started_user_namespaced_pods_errors_total` for tracking the successes and failures in creating pods if a user namespace was requested. ([#132902](https://github.com/kubernetes/kubernetes/pull/132902), [@haircommander](https://github.com/haircommander)) [SIG Node and Testing]