@Override public Long call() { return metrics.getRollingMaxConcurrentExecutions(); }
private String getCommandJson(final HystrixCommandMetrics commandMetrics) throws IOException { HystrixCommandKey key = commandMetrics.getCommandKey(); HystrixCircuitBreaker circuitBreaker = HystrixCircuitBreaker.Factory.getInstance(key); StringWriter jsonString = new StringWriter(); JsonGenerator json = jsonFactory.createGenerator(jsonString); json.writeStartObject(); json.writeStringField("type", "HystrixCommand"); json.writeStringField("name", key.name()); json.writeStringField("group", commandMetrics.getCommandGroup().name()); json.writeNumberField("currentTime", System.currentTimeMillis()); // circuit breaker if (circuitBreaker == null) { // circuit breaker is disabled and thus never open json.writeBooleanField("isCircuitBreakerOpen", false); } else { json.writeBooleanField("isCircuitBreakerOpen", circuitBreaker.isOpen()); } HealthCounts healthCounts = commandMetrics.getHealthCounts(); json.writeNumberField("errorPercentage", healthCounts.getErrorPercentage()); json.writeNumberField("errorCount", healthCounts.getErrorCount()); json.writeNumberField("requestCount", healthCounts.getTotalRequests()); // rolling counters safelyWriteNumberField( json, "rollingCountBadRequests", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.BAD_REQUEST); } }); safelyWriteNumberField( json, "rollingCountCollapsedRequests", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.COLLAPSED); } }); safelyWriteNumberField( json, "rollingCountEmit", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.EMIT); } }); safelyWriteNumberField( json, "rollingCountExceptionsThrown", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.EXCEPTION_THROWN); } }); safelyWriteNumberField( json, "rollingCountFailure", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.FAILURE); } }); safelyWriteNumberField( json, "rollingCountFallbackEmit", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.FALLBACK_EMIT); } }); safelyWriteNumberField( json, "rollingCountFallbackFailure", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.FALLBACK_FAILURE); } }); safelyWriteNumberField( json, "rollingCountFallbackMissing", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.FALLBACK_MISSING); } }); safelyWriteNumberField( json, "rollingCountFallbackRejection", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.FALLBACK_REJECTION); } }); safelyWriteNumberField( json, "rollingCountFallbackSuccess", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.FALLBACK_SUCCESS); } }); safelyWriteNumberField( json, "rollingCountResponsesFromCache", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.RESPONSE_FROM_CACHE); } }); safelyWriteNumberField( json, "rollingCountSemaphoreRejected", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.SEMAPHORE_REJECTED); } }); safelyWriteNumberField( json, "rollingCountShortCircuited", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.SHORT_CIRCUITED); } }); safelyWriteNumberField( json, "rollingCountSuccess", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.SUCCESS); } }); safelyWriteNumberField( json, "rollingCountThreadPoolRejected", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.THREAD_POOL_REJECTED); } }); safelyWriteNumberField( json, "rollingCountTimeout", new Func0<Long>() { @Override public Long call() { return commandMetrics.getRollingCount(HystrixEventType.TIMEOUT); } }); json.writeNumberField( "currentConcurrentExecutionCount", commandMetrics.getCurrentConcurrentExecutionCount()); json.writeNumberField( "rollingMaxConcurrentExecutionCount", commandMetrics.getRollingMaxConcurrentExecutions()); // latency percentiles json.writeNumberField("latencyExecute_mean", commandMetrics.getExecutionTimeMean()); json.writeObjectFieldStart("latencyExecute"); json.writeNumberField("0", commandMetrics.getExecutionTimePercentile(0)); json.writeNumberField("25", commandMetrics.getExecutionTimePercentile(25)); json.writeNumberField("50", commandMetrics.getExecutionTimePercentile(50)); json.writeNumberField("75", commandMetrics.getExecutionTimePercentile(75)); json.writeNumberField("90", commandMetrics.getExecutionTimePercentile(90)); json.writeNumberField("95", commandMetrics.getExecutionTimePercentile(95)); json.writeNumberField("99", commandMetrics.getExecutionTimePercentile(99)); json.writeNumberField("99.5", commandMetrics.getExecutionTimePercentile(99.5)); json.writeNumberField("100", commandMetrics.getExecutionTimePercentile(100)); json.writeEndObject(); // json.writeNumberField("latencyTotal_mean", commandMetrics.getTotalTimeMean()); json.writeObjectFieldStart("latencyTotal"); json.writeNumberField("0", commandMetrics.getTotalTimePercentile(0)); json.writeNumberField("25", commandMetrics.getTotalTimePercentile(25)); json.writeNumberField("50", commandMetrics.getTotalTimePercentile(50)); json.writeNumberField("75", commandMetrics.getTotalTimePercentile(75)); json.writeNumberField("90", commandMetrics.getTotalTimePercentile(90)); json.writeNumberField("95", commandMetrics.getTotalTimePercentile(95)); json.writeNumberField("99", commandMetrics.getTotalTimePercentile(99)); json.writeNumberField("99.5", commandMetrics.getTotalTimePercentile(99.5)); json.writeNumberField("100", commandMetrics.getTotalTimePercentile(100)); json.writeEndObject(); // property values for reporting what is actually seen by the command rather than what was set // somewhere HystrixCommandProperties commandProperties = commandMetrics.getProperties(); json.writeNumberField( "propertyValue_circuitBreakerRequestVolumeThreshold", commandProperties.circuitBreakerRequestVolumeThreshold().get()); json.writeNumberField( "propertyValue_circuitBreakerSleepWindowInMilliseconds", commandProperties.circuitBreakerSleepWindowInMilliseconds().get()); json.writeNumberField( "propertyValue_circuitBreakerErrorThresholdPercentage", commandProperties.circuitBreakerErrorThresholdPercentage().get()); json.writeBooleanField( "propertyValue_circuitBreakerForceOpen", commandProperties.circuitBreakerForceOpen().get()); json.writeBooleanField( "propertyValue_circuitBreakerForceClosed", commandProperties.circuitBreakerForceClosed().get()); json.writeBooleanField( "propertyValue_circuitBreakerEnabled", commandProperties.circuitBreakerEnabled().get()); json.writeStringField( "propertyValue_executionIsolationStrategy", commandProperties.executionIsolationStrategy().get().name()); json.writeNumberField( "propertyValue_executionIsolationThreadTimeoutInMilliseconds", commandProperties.executionTimeoutInMilliseconds().get()); json.writeNumberField( "propertyValue_executionTimeoutInMilliseconds", commandProperties.executionTimeoutInMilliseconds().get()); json.writeBooleanField( "propertyValue_executionIsolationThreadInterruptOnTimeout", commandProperties.executionIsolationThreadInterruptOnTimeout().get()); json.writeStringField( "propertyValue_executionIsolationThreadPoolKeyOverride", commandProperties.executionIsolationThreadPoolKeyOverride().get()); json.writeNumberField( "propertyValue_executionIsolationSemaphoreMaxConcurrentRequests", commandProperties.executionIsolationSemaphoreMaxConcurrentRequests().get()); json.writeNumberField( "propertyValue_fallbackIsolationSemaphoreMaxConcurrentRequests", commandProperties.fallbackIsolationSemaphoreMaxConcurrentRequests().get()); /* * The following are commented out as these rarely change and are verbose for streaming for something people don't change. * We could perhaps allow a property or request argument to include these. */ // json.put("propertyValue_metricsRollingPercentileEnabled", // commandProperties.metricsRollingPercentileEnabled().get()); // json.put("propertyValue_metricsRollingPercentileBucketSize", // commandProperties.metricsRollingPercentileBucketSize().get()); // json.put("propertyValue_metricsRollingPercentileWindow", // commandProperties.metricsRollingPercentileWindowInMilliseconds().get()); // json.put("propertyValue_metricsRollingPercentileWindowBuckets", // commandProperties.metricsRollingPercentileWindowBuckets().get()); // json.put("propertyValue_metricsRollingStatisticalWindowBuckets", // commandProperties.metricsRollingStatisticalWindowBuckets().get()); json.writeNumberField( "propertyValue_metricsRollingStatisticalWindowInMilliseconds", commandProperties.metricsRollingStatisticalWindowInMilliseconds().get()); json.writeBooleanField( "propertyValue_requestCacheEnabled", commandProperties.requestCacheEnabled().get()); json.writeBooleanField( "propertyValue_requestLogEnabled", commandProperties.requestLogEnabled().get()); json.writeNumberField( "reportingHosts", 1); // this will get summed across all instances in a cluster json.writeStringField("threadPool", commandMetrics.getThreadPoolKey().name()); json.writeEndObject(); json.close(); return jsonString.getBuffer().toString(); }