/*
 * 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.cassandra.transport;

import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.TimeUnit;

import org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor;
import org.apache.cassandra.concurrent.NamedThreadFactory;
import org.apache.cassandra.config.DatabaseDescriptor;

public class RequestThreadPoolExecutor extends DebuggableThreadPoolExecutor
{
    private final static int CORE_THREAD_TIMEOUT_SEC = 30;

    public RequestThreadPoolExecutor()
    {
        super(DatabaseDescriptor.getNativeTransportMinThreads(),
              DatabaseDescriptor.getNativeTransportMaxThreads(),
              CORE_THREAD_TIMEOUT_SEC, TimeUnit.SECONDS,
              new ArrayBlockingQueue(32), // Seems to help smooth latency compared to SynchronousQueue.
              new NamedThreadFactory("Native-Transport-Requests"));
    }
}

/*
 * 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.cassandra.transport;

import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;

import org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor;
import org.apache.cassandra.concurrent.NamedThreadFactory;
import org.apache.cassandra.config.DatabaseDescriptor;

public class RequestThreadPoolExecutor extends DebuggableThreadPoolExecutor
{
    private final static int CORE_THREAD_TIMEOUT_SEC = 30;

    public RequestThreadPoolExecutor()
    {
        super(DatabaseDescriptor.getNativeTransportMinThreads(),
              DatabaseDescriptor.getNativeTransportMaxThreads(),
              CORE_THREAD_TIMEOUT_SEC, TimeUnit.SECONDS,
              new LinkedBlockingQueue<Runnable>(32), // Seems to help smooth latency compared to SynchronousQueue.
              new NamedThreadFactory("Native-Transport-Requests"));
    }
}

Replace ArrayBlockingQuery by LinkedBlockingQueue in binary protocol RequestThreadPoolExecutor