Examples with DegradeRule com.alibaba.csp.sentinel.slots.block.degrade.DegradeRule used on opensource projects

Example 1 with DegradeRule

use of com.alibaba.csp.sentinel.slots.block.degrade.DegradeRule in project Sentinel by alibaba.

the class AppLifecycleBean method onStart.

void onStart(@Observes StartupEvent ev) {
    LOGGER.info("The application is starting...");
    // Only for test here. Actually it's recommended to configure rules via data-source.
    FlowRule rule1 = new FlowRule().setCount(1).setGrade(RuleConstant.FLOW_GRADE_QPS).setResource("GET:/hello/txt").setLimitApp("default").as(FlowRule.class);
    FlowRule rule2 = new FlowRule("greeting2").setCount(1).setGrade(RuleConstant.FLOW_GRADE_QPS).as(FlowRule.class);
    FlowRuleManager.loadRules(Arrays.asList(rule1, rule2));
    DegradeRule degradeRule1 = new DegradeRule("greeting1").setCount(1).setGrade(CircuitBreakerStrategy.ERROR_COUNT.getType()).setTimeWindow(5).setStatIntervalMs(10000).setMinRequestAmount(1);
    DegradeRuleManager.loadRules(Arrays.asList(degradeRule1));
}

Example 2 with DegradeRule

use of com.alibaba.csp.sentinel.slots.block.degrade.DegradeRule in project Sentinel by alibaba.

the class FooConsumerExceptionDegradeBootstrap method initExceptionFallback.

public static void initExceptionFallback(int timewindow) {
    DegradeRule degradeRule = new DegradeRule(INTERFACE_RES_KEY).setCount(0.5).setGrade(RuleConstant.DEGRADE_GRADE_EXCEPTION_RATIO).setTimeWindow(timewindow).setMinRequestAmount(1);
    DegradeRuleManager.loadRules(Collections.singletonList(degradeRule));
}

Example 3 with DegradeRule

use of com.alibaba.csp.sentinel.slots.block.degrade.DegradeRule in project Sentinel by alibaba.

the class ExceptionRatioCircuitBreakerDemo method initDegradeRule.

private static void initDegradeRule() {
    List<DegradeRule> rules = new ArrayList<>();
    DegradeRule rule = new DegradeRule(KEY).setGrade(CircuitBreakerStrategy.ERROR_RATIO.getType()).setCount(0.5d).setStatIntervalMs(30000).setMinRequestAmount(50).setTimeWindow(10);
    rules.add(rule);
    DegradeRuleManager.loadRules(rules);
    System.out.println("Degrade rule loaded: " + rules);
}

Example 4 with DegradeRule

use of com.alibaba.csp.sentinel.slots.block.degrade.DegradeRule in project Sentinel by alibaba.

the class ResponseTimeCircuitBreakerTest method testMaxSlowRatioThreshold.

@Test
public void testMaxSlowRatioThreshold() {
    String resource = "testMaxSlowRatioThreshold";
    DegradeRule rule = new DegradeRule("resource").setCount(10).setGrade(RuleConstant.DEGRADE_GRADE_RT).setMinRequestAmount(3).setSlowRatioThreshold(1).setStatIntervalMs(5000).setTimeWindow(5);
    rule.setResource(resource);
    DegradeRuleManager.loadRules(Collections.singletonList(rule));
    assertTrue(entryAndSleepFor(resource, 20));
    assertTrue(entryAndSleepFor(resource, 20));
    assertTrue(entryAndSleepFor(resource, 20));
    // should be blocked, cause 3/3 requests' rt is bigger than max rt.
    assertFalse(entryAndSleepFor(resource, 20));
    sleep(1000);
    assertFalse(entryAndSleepFor(resource, 20));
    sleep(4000);
    assertTrue(entryAndSleepFor(resource, 20));
}

Example 5 with DegradeRule

use of com.alibaba.csp.sentinel.slots.block.degrade.DegradeRule in project Sentinel by alibaba.

the class DegradeRuleEntity method toRule.

@Override
public DegradeRule toRule() {
    DegradeRule rule = new DegradeRule();
    rule.setResource(resource);
    rule.setLimitApp(limitApp);
    rule.setCount(count);
    rule.setTimeWindow(timeWindow);
    rule.setGrade(grade);
    if (minRequestAmount != null) {
        rule.setMinRequestAmount(minRequestAmount);
    }
    if (slowRatioThreshold != null) {
        rule.setSlowRatioThreshold(slowRatioThreshold);
    }
    if (statIntervalMs != null) {
        rule.setStatIntervalMs(statIntervalMs);
    }
    return rule;
}