| /* |
| * |
| * 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.crail.storage.rdma; |
| |
| import java.io.IOException; |
| |
| import org.apache.crail.CrailBufferCache; |
| import org.apache.crail.CrailStatistics; |
| import org.apache.crail.conf.CrailConfiguration; |
| import org.apache.crail.metadata.DataNodeInfo; |
| import org.apache.crail.storage.StorageClient; |
| import org.apache.crail.storage.StorageEndpoint; |
| import org.apache.crail.storage.rdma.client.RdmaStorageActiveEndpointFactory; |
| import org.apache.crail.storage.rdma.client.RdmaStorageActiveGroup; |
| import org.apache.crail.storage.rdma.client.RdmaStoragePassiveEndpointFactory; |
| import org.apache.crail.storage.rdma.client.RdmaStoragePassiveGroup; |
| import org.apache.crail.utils.CrailUtils; |
| import org.slf4j.Logger; |
| |
| public class RdmaStorageClient implements StorageClient { |
| private static final Logger LOG = CrailUtils.getLogger(); |
| |
| private MrCache clientMrCache = null; |
| private RdmaStorageGroup clientGroup = null; |
| |
| public RdmaStorageClient(){ |
| this.clientGroup = null; |
| this.clientMrCache = null; |
| } |
| |
| public void init(CrailStatistics statistics, CrailBufferCache bufferCache, CrailConfiguration conf, String[] args) |
| throws IOException { |
| RdmaConstants.init(conf, args); |
| } |
| |
| public void printConf(Logger logger){ |
| RdmaConstants.printConf(logger); |
| } |
| |
| @Override |
| public StorageEndpoint createEndpoint(DataNodeInfo info) throws IOException { |
| if (clientMrCache == null){ |
| synchronized(this){ |
| if (clientMrCache == null){ |
| this.clientMrCache = new MrCache(); |
| } |
| } |
| } |
| if (clientGroup == null){ |
| synchronized(this){ |
| if (clientGroup == null){ |
| if (RdmaConstants.STORAGE_RDMA_TYPE.equalsIgnoreCase("passive")){ |
| LOG.info("passive data client "); |
| RdmaStoragePassiveGroup _endpointGroup = new RdmaStoragePassiveGroup(100, RdmaConstants.STORAGE_RDMA_QUEUESIZE, 4, RdmaConstants.STORAGE_RDMA_QUEUESIZE*2, clientMrCache); |
| _endpointGroup.init(new RdmaStoragePassiveEndpointFactory(_endpointGroup)); |
| this.clientGroup = _endpointGroup; |
| } else { |
| LOG.info("active data client "); |
| RdmaStorageActiveGroup _endpointGroup = new RdmaStorageActiveGroup(100, false, RdmaConstants.STORAGE_RDMA_QUEUESIZE, 4, RdmaConstants.STORAGE_RDMA_QUEUESIZE*2, clientMrCache); |
| _endpointGroup.init(new RdmaStorageActiveEndpointFactory(_endpointGroup)); |
| this.clientGroup = _endpointGroup; |
| } |
| } |
| } |
| } |
| |
| return clientGroup.createEndpoint(info); |
| } |
| |
| |
| public void close() throws Exception { |
| if (clientGroup != null){ |
| this.clientGroup.close(); |
| } |
| } |
| } |