| /* |
| * 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.hudi.metrics; |
| |
| import org.apache.hudi.config.HoodieWriteConfig; |
| import org.apache.hudi.exception.HoodieException; |
| |
| import com.codahale.metrics.MetricRegistry; |
| import org.apache.log4j.LogManager; |
| |
| import javax.management.MBeanServer; |
| |
| import java.io.Closeable; |
| import java.lang.management.ManagementFactory; |
| import java.util.Objects; |
| import java.util.stream.IntStream; |
| |
| |
| /** |
| * Implementation of Jmx reporter, which used to report jmx metric. |
| */ |
| public class JmxMetricsReporter extends MetricsReporter { |
| |
| private static final org.apache.log4j.Logger LOG = LogManager.getLogger(JmxMetricsReporter.class); |
| |
| private final MetricRegistry registry; |
| private JmxReporterServer jmxReporterServer; |
| |
| public JmxMetricsReporter(HoodieWriteConfig config, MetricRegistry registry) { |
| try { |
| this.registry = registry; |
| // Check the host and port here |
| String host = config.getJmxHost(); |
| String portsConfig = config.getJmxPort(); |
| if (host == null || portsConfig == null) { |
| throw new HoodieException( |
| String.format("Jmx cannot be initialized with host[%s] and port[%s].", |
| host, portsConfig)); |
| } |
| int[] ports = getPortRangeFromString(portsConfig); |
| boolean successfullyStartedServer = false; |
| for (int port : ports) { |
| jmxReporterServer = createJmxReport(host, port); |
| LOG.info("Started JMX server on port " + port + "."); |
| successfullyStartedServer = true; |
| break; |
| } |
| if (!successfullyStartedServer) { |
| throw new HoodieException( |
| "Could not start JMX server on any configured port. Ports: " + portsConfig); |
| } |
| LOG.info("Configured JMXReporter with {port:" + portsConfig + "}"); |
| } catch (Exception e) { |
| String msg = "Jmx initialize failed: "; |
| LOG.error(msg, e); |
| throw new HoodieException(msg, e); |
| } |
| } |
| |
| @Override |
| public void start() { |
| if (jmxReporterServer != null) { |
| jmxReporterServer.start(); |
| } else { |
| LOG.error("Cannot start as the jmxReporter is null."); |
| } |
| } |
| |
| @Override |
| public void report() { |
| } |
| |
| @Override |
| public Closeable getReporter() { |
| return jmxReporterServer.getReporter(); |
| } |
| |
| @Override |
| public void stop() { |
| Objects.requireNonNull(jmxReporterServer, "jmxReporterServer is not running."); |
| try { |
| jmxReporterServer.stop(); |
| } catch (Exception e) { |
| throw new HoodieException("Stop jmxReporterServer fail", e); |
| } |
| } |
| |
| private JmxReporterServer createJmxReport(String host, int port) { |
| MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer(); |
| return JmxReporterServer.forRegistry(registry) |
| .host(host) |
| .port(port) |
| .registerWith(mBeanServer) |
| .build(); |
| } |
| |
| private int[] getPortRangeFromString(String portsConfig) { |
| String range = portsConfig.trim(); |
| int dashIdx = range.indexOf('-'); |
| final int start; |
| final int end; |
| if (dashIdx == -1) { |
| start = Integer.parseInt(range); |
| end = Integer.parseInt(range); |
| } else { |
| start = Integer.parseInt(range.substring(0, dashIdx)); |
| end = Integer.parseInt(range.substring(dashIdx + 1)); |
| } |
| return IntStream.rangeClosed(start, end) |
| .filter(port -> (0 <= port && port <= 65535)) |
| .toArray(); |
| } |
| } |