/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.runtime.query.netty;
/**
* Simple statistics for {@link KvStateServer} monitoring.
*/
public interface KvStateRequestStats {
/**
* Reports an active connection.
*/
void reportActiveConnection();
/**
* Reports an inactive connection.
*/
void reportInactiveConnection();
/**
* Reports an incoming request.
*/
void reportRequest();
/**
* Reports a successfully handled request.
*
* @param durationTotalMillis Duration of the request (in milliseconds).
*/
void reportSuccessfulRequest(long durationTotalMillis);
/**
* Reports a failure during a request.
*/
void reportFailedRequest();
}