How to use

start

method

in

org.apache.rocketmq.store.CommitLog

/**
 * @throws Exception
 */
public void start() throws Exception {
  lock = lockFile.getChannel().tryLock(0, 1, false);
  if (lock == null || lock.isShared() || !lock.isValid()) {
    throw new RuntimeException("Lock failed,MQ already started");
  }
  lockFile.getChannel().write(ByteBuffer.wrap("lock".getBytes()));
  lockFile.getChannel().force(true);
  this.flushConsumeQueueService.start();
  this.commitLog.start();
  this.storeStatsService.start();
  if (this.scheduleMessageService != null && SLAVE != messageStoreConfig.getBrokerRole()) {
    this.scheduleMessageService.start();
  }
  if (this.getMessageStoreConfig().isDuplicationEnable()) {
    this.reputMessageService.setReputFromOffset(this.commitLog.getConfirmOffset());
  } else {
    this.reputMessageService.setReputFromOffset(this.commitLog.getMaxOffset());
  }
  this.reputMessageService.start();
  this.haService.start();
  this.createTempFile();
  this.addScheduleTask();
  this.shutdown = false;
}

/**
 * @throws Exception
 */
public void start() throws Exception {
  lock = lockFile.getChannel().tryLock(0, 1, false);
  if (lock == null || lock.isShared() || !lock.isValid()) {
    throw new RuntimeException("Lock failed,MQ already started");
  }
  lockFile.getChannel().write(ByteBuffer.wrap("lock".getBytes()));
  lockFile.getChannel().force(true);
  this.flushConsumeQueueService.start();
  this.commitLog.start();
  this.storeStatsService.start();
  if (this.scheduleMessageService != null && BrokerRole.SLAVE != messageStoreConfig.getBrokerRole()) {
    this.scheduleMessageService.start();
  }
  if (this.getMessageStoreConfig().isDuplicationEnable()) {
    this.reputMessageService.setReputFromOffset(this.commitLog.getConfirmOffset());
  } else {
    this.reputMessageService.setReputFromOffset(this.commitLog.getMaxOffset());
  }
  this.reputMessageService.start();
  this.haService.start();
  this.createTempFile();
  this.addScheduleTask();
  if (BrokerRole.SLAVE != messageStoreConfig.getBrokerRole()) {
    this.haService.initInSyncOffset(getMaxPhyOffset());
  }
  this.shutdown = false;
}

/**
 * @throws Exception
 */
public void start() throws Exception {
  lock = lockFile.getChannel().tryLock(0, 1, false);
  if (lock == null || lock.isShared() || !lock.isValid()) {
    throw new RuntimeException("Lock failed,MQ already started");
  }
  lockFile.getChannel().write(ByteBuffer.wrap("lock".getBytes()));
  lockFile.getChannel().force(true);
  this.flushConsumeQueueService.start();
  this.commitLog.start();
  this.storeStatsService.start();
  if (this.scheduleMessageService != null && SLAVE != messageStoreConfig.getBrokerRole()) {
    this.scheduleMessageService.start();
  }
  if (this.getMessageStoreConfig().isDuplicationEnable()) {
    this.reputMessageService.setReputFromOffset(this.commitLog.getConfirmOffset());
  } else {
    this.reputMessageService.setReputFromOffset(this.commitLog.getMaxOffset());
  }
  this.reputMessageService.start();
  this.haService.start();
  this.createTempFile();
  this.addScheduleTask();
  this.shutdown = false;
}