之前講了 cat-client 進行cat埋點上報,那麼上報給誰呢?以及後續故事如何?讓我們來看看 cat-consumer 是如何接收處理的?
由cat-client發送資料,cat-consumer進行接收請求處理,開始了處理問題之旅!
首先,讓我們來回顧一下 TcpSocketSender 是如何發送資料的:
// TcpSocketSender 往channel中寫入資料,此處有興趣的同學可以延伸下 netty 的源碼!
private void sendInternal(MessageTree tree) {
ChannelFuture future = m_manager.channel();
ByteBuf buf = PooledByteBufAllocator.DEFAULT.buffer(10 * 1024); // 10K
m_codec.encode(tree, buf);
int size = buf.readableBytes();
Channel channel = future.channel();
// 以 ByteBuf 形式發送資料
channel.writeAndFlush(buf);
// 更新統計資料
if (m_statistics != null) {
m_statistics.onBytes(size);
}
}
// TcpSocketReceiver, 接收發送過來的資料,預設端口 2280, 注冊服務,線上為分布式部署,即為接口調用式。
public void init() {
try {
startServer(m_port);
} catch (Throwable e) {
m_logger.error(e.getMessage(), e);
}
}
public synchronized void startServer(int port) throws InterruptedException {
boolean linux = getOSMatches("Linux") || getOSMatches("LINUX");
int threads = 24;
ServerBootstrap bootstrap = new ServerBootstrap();
m_bossGroup = linux ? new EpollEventLoopGroup(threads) : new NioEventLoopGroup(threads);
m_workerGroup = linux ? new EpollEventLoopGroup(threads) : new NioEventLoopGroup(threads);
bootstrap.group(m_bossGroup, m_workerGroup);
bootstrap.channel(linux ? EpollServerSocketChannel.class : NioServerSocketChannel.class);
// 添加處理handler, 進行請求邏輯處理
bootstrap.childHandler(new ChannelInitializer<SocketChannel>() {
@Override
protected void initChannel(SocketChannel ch) throws Exception {
ChannelPipeline pipeline = ch.pipeline();
// 此處僅為一個解碼器,實際功能在該解碼器中完成
pipeline.addLast("decode", new MessageDecoder());
}
});
bootstrap.childOption(ChannelOption.SO_REUSEADDR, true);
bootstrap.childOption(ChannelOption.TCP_NODELAY, true);
bootstrap.childOption(ChannelOption.SO_KEEPALIVE, true);
bootstrap.childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
try {
m_future = bootstrap.bind(port).sync();
m_logger.info("start netty server!");
} catch (Exception e) {
m_logger.error("Started Netty Server Failed:" + port, e);
}
}
// 消息解碼器,并處理具體業務邏輯,先确認資料已上傳完成,再進行邏輯處理
public class MessageDecoder extends ByteToMessageDecoder {
@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> out) throws Exception {
if (buffer.readableBytes() < 4) {
return;
}
buffer.markReaderIndex();
int length = buffer.readInt();
buffer.resetReaderIndex();
if (buffer.readableBytes() < length + 4) {
return;
}
try {
if (length > 0) {
ByteBuf readBytes = buffer.readBytes(length + 4);
readBytes.markReaderIndex();
readBytes.readInt();
// 消息解碼,擷取頭資訊,消息體
DefaultMessageTree tree = (DefaultMessageTree) m_codec.decode(readBytes);
readBytes.resetReaderIndex();
tree.setBuffer(readBytes);
// 交由handler處理實際邏輯
m_handler.handle(tree);
m_processCount++;
long flag = m_processCount % CatConstants.SUCCESS_COUNT;
if (flag == 0) {
m_serverStateManager.addMessageTotal(CatConstants.SUCCESS_COUNT);
}
} else {
// client message is error
buffer.readBytes(length);
}
} catch (Exception e) {
m_serverStateManager.addMessageTotalLoss(1);
m_logger.error(e.getMessage(), e);
}
}
}
// 消息解碼,為後續處理提供基礎設施
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsIiZpdmLrN2bsJEZlR3YhJHdu92Qvw1cy9GdhNWak5WSn5WaulGb0V3TvwVbvNmLzd2bsJmbj5ycldWYtl2Lc9CX6MHc0RHaiojIsJye.gif)
//PlainTextMessageCodec.decode() 消息解碼
@Override
public MessageTree decode(ByteBuf buf) {
MessageTree tree = new DefaultMessageTree();
// 使用一個預設消息樹,用于接收消息
decode(buf, tree);
return tree;
}
@Override
public void decode(ByteBuf buf, MessageTree tree) {
Context ctx = m_ctx.get().setBuffer(buf);
// 解析頭資訊
decodeHeader(ctx, tree);
// 解析消息體
if (buf.readableBytes() > 0) {
decodeMessage(ctx, tree);
}
}
// 解析頭資訊,以tab='\t' 和 lf='\n', 進行分割
protected void decodeHeader(Context ctx, MessageTree tree) {
BufferHelper helper = m_bufferHelper;
String id = helper.read(ctx, TAB);
String domain = helper.read(ctx, TAB);
String hostName = helper.read(ctx, TAB);
String ipAddress = helper.read(ctx, TAB);
String threadGroupName = helper.read(ctx, TAB);
String threadId = helper.read(ctx, TAB);
String threadName = helper.read(ctx, TAB);
String messageId = helper.read(ctx, TAB);
String parentMessageId = helper.read(ctx, TAB);
String rootMessageId = helper.read(ctx, TAB);
String sessionToken = helper.read(ctx, LF);
if (VERSION.equals(id)) {
tree.setDomain(domain);
tree.setHostName(hostName);
tree.setIpAddress(ipAddress);
tree.setThreadGroupName(threadGroupName);
tree.setThreadId(threadId);
tree.setThreadName(threadName);
tree.setMessageId(messageId);
tree.setParentMessageId(parentMessageId);
tree.setRootMessageId(rootMessageId);
tree.setSessionToken(sessionToken);
} else {
throw new RuntimeException(String.format("Unrecognized id(%s) for plain text message codec!", id));
}
}
// 解析消息體
protected void decodeMessage(Context ctx, MessageTree tree) {
Stack<DefaultTransaction> stack = new Stack<DefaultTransaction>();
Message parent = decodeLine(ctx, null, stack);
tree.setMessage(parent);
// 循環讀取消息體,直到讀取完成
while (ctx.getBuffer().readableBytes() > 0) {
Message message = decodeLine(ctx, (DefaultTransaction) parent, stack);
if (message instanceof DefaultTransaction) {
parent = message;
} else {
break;
}
}
}
// 解析内容棧出來
protected Message decodeLine(Context ctx, DefaultTransaction parent, Stack<DefaultTransaction> stack) {
BufferHelper helper = m_bufferHelper;
byte identifier = ctx.getBuffer().readByte();
String timestamp = helper.read(ctx, TAB);
String type = helper.read(ctx, TAB);
String name = helper.read(ctx, TAB);
switch (identifier) {
// t: transaction 類型消息, T: pop結束, E:Event, M: Metrics, L: Trace, H: heartbeat 消息
case 't':
DefaultTransaction transaction = new DefaultTransaction(type, name, null);
helper.read(ctx, LF); // get rid of line feed
transaction.setTimestamp(m_dateHelper.parse(timestamp));
if (parent != null) {
parent.addChild(transaction);
}
stack.push(parent);
return transaction;
case 'A':
DefaultTransaction tran = new DefaultTransaction(type, name, null);
String status = helper.read(ctx, TAB);
String duration = helper.read(ctx, TAB);
String data = helper.read(ctx, TAB);
helper.read(ctx, LF); // get rid of line feed
tran.setTimestamp(m_dateHelper.parse(timestamp));
tran.setStatus(status);
tran.addData(data);
long d = Long.parseLong(duration.substring(0, duration.length() - 2));
tran.setDurationInMicros(d);
if (parent != null) {
parent.addChild(tran);
return parent;
} else {
return tran;
}
case 'T':
String transactionStatus = helper.read(ctx, TAB);
String transactionDuration = helper.read(ctx, TAB);
String transactionData = helper.read(ctx, TAB);
helper.read(ctx, LF); // get rid of line feed
parent.setStatus(transactionStatus);
parent.addData(transactionData);
long transactionD = Long.parseLong(transactionDuration.substring(0, transactionDuration.length() - 2));
parent.setDurationInMicros(transactionD);
return stack.pop();
case 'E':
DefaultEvent event = new DefaultEvent(type, name);
String eventStatus = helper.read(ctx, TAB);
String eventData = helper.read(ctx, TAB);
helper.read(ctx, LF); // get rid of line feed
event.setTimestamp(m_dateHelper.parse(timestamp));
event.setStatus(eventStatus);
event.addData(eventData);
if (parent != null) {
parent.addChild(event);
return parent;
} else {
return event;
}
case 'M':
DefaultMetric metric = new DefaultMetric(type, name);
String metricStatus = helper.read(ctx, TAB);
String metricData = helper.read(ctx, TAB);
helper.read(ctx, LF); // get rid of line feed
metric.setTimestamp(m_dateHelper.parse(timestamp));
metric.setStatus(metricStatus);
metric.addData(metricData);
if (parent != null) {
parent.addChild(metric);
return parent;
} else {
return metric;
}
case 'L':
DefaultTrace trace = new DefaultTrace(type, name);
String traceStatus = helper.read(ctx, TAB);
String traceData = helper.read(ctx, TAB);
helper.read(ctx, LF); // get rid of line feed
trace.setTimestamp(m_dateHelper.parse(timestamp));
trace.setStatus(traceStatus);
trace.addData(traceData);
if (parent != null) {
parent.addChild(trace);
return parent;
} else {
return trace;
}
case 'H':
DefaultHeartbeat heartbeat = new DefaultHeartbeat(type, name);
String heartbeatStatus = helper.read(ctx, TAB);
String heartbeatData = helper.read(ctx, TAB);
helper.read(ctx, LF); // get rid of line feed
heartbeat.setTimestamp(m_dateHelper.parse(timestamp));
heartbeat.setStatus(heartbeatStatus);
heartbeat.addData(heartbeatData);
if (parent != null) {
parent.addChild(heartbeat);
return parent;
} else {
return heartbeat;
}
default:
m_logger.warn("Unknown identifier(" + (char) identifier + ") of message: "
+ ctx.getBuffer().toString(Charset.forName("utf-8")));
throw new RuntimeException("Unknown identifier int name");
}
}
View Code
// handler 處理流程,由DefaultMessageHandler接手,安排後續工作。
// DefaultMessageHandler, 接過處理器的第一棒, 交由另一實際的consumer(RealtimeConsumer) handler處理
@Override
public void handle(MessageTree tree) {
if (m_consumer == null) {
m_consumer = lookup(MessageConsumer.class);
}
try {
m_consumer.consume(tree);
} catch (Throwable e) {
m_logger.error("Error when consuming message in " + m_consumer + "! tree: " + tree, e);
}
}
// RealtimeConsumer, 進行消費資料
@Override
public void consume(MessageTree tree) {
String domain = tree.getDomain();
String ip = tree.getIpAddress();
// 進行權限檢測,ip,domain
if (!m_blackListManager.isBlack(domain, ip)) {
long timestamp = tree.getMessage().getTimestamp();
Period period = m_periodManager.findPeriod(timestamp);
// 找到period, 再将消息配置設定過去,否則算作網絡異常
if (period != null) {
period.distribute(tree);
} else {
m_serverStateManager.addNetworkTimeError(1);
}
} else {
m_black++;
if (m_black % CatConstants.SUCCESS_COUNT == 0) {
Cat.logEvent("Discard", domain);
}
}
}
// Period.distribute, 将消息依次取出,進行分發到隊列
public void distribute(MessageTree tree) {
// 統計進行數進行加1
m_serverStateManager.addMessageTotal(tree.getDomain(), 1);
boolean success = true;
String domain = tree.getDomain();
// 将各種類型的監控資料分别取出進行處理
for (Entry<String, List<PeriodTask>> entry : m_tasks.entrySet()) {
List<PeriodTask> tasks = entry.getValue();
int length = tasks.size();
int index = 0;
boolean manyTasks = length > 1;
if (manyTasks) {
index = Math.abs(domain.hashCode()) % length;
}
PeriodTask task = tasks.get(index);
// 如果有金條消息,将task重新入隊
boolean enqueue = task.enqueue(tree);
if (enqueue == false) {
if (manyTasks) {
task = tasks.get((index + 1) % length);
enqueue = task.enqueue(tree);
if (enqueue == false) {
success = false;
}
} else {
success = false;
}
}
}
if (!success) {
m_serverStateManager.addMessageTotalLoss(tree.getDomain(), 1);
}
}
// PeriodTask.enqueue, 重新入隊消息,讓消費線程自行消費 LinkedBlockingQueue.offer(..)
public boolean enqueue(MessageTree tree) {
boolean result = m_queue.offer(tree);
if (!result) { // trace queue overflow, 記錄入隊失敗日志
m_queueOverflow++;
if (m_queueOverflow % (10 * CatConstants.ERROR_COUNT) == 0) {
m_logger.warn(m_analyzer.getClass().getSimpleName() + " queue overflow number " + m_queueOverflow);
}
}
return result;
}
到此,一條消費線路就完成了。
// PeriodTask 線程,作為第二個消費線路
@Override
public void run() {
try {
// 分析各消息資料,做背景消費處理
m_analyzer.analyze(m_queue);
} catch (Exception e) {
Cat.logError(e);
}
}
// 調用統一的抽象類的模闆方法,由各類進行具體的 process 處理
@Override
public void analyze(MessageQueue queue) {
while (!isTimeout() && isActive()) {
MessageTree tree = queue.poll();
if (tree != null) {
try {
// 調用具體類的process
process(tree);
} catch (Throwable e) {
m_errors++;
if (m_errors == 1 || m_errors % 10000 == 0) {
Cat.logError(e);
}
}
}
}
// 如果出現逾時或者停止動作,則把剩餘隊列處理完成再退出線程
while (true) {
MessageTree tree = queue.poll();
if (tree != null) {
try {
process(tree);
} catch (Throwable e) {
m_errors++;
if (m_errors == 1 || m_errors % 10000 == 0) {
Cat.logError(e);
}
}
} else {
break;
}
}
}
// 逾時規則,目前時間 > 開始時間+1小時+設定額外逾時時間
protected boolean isTimeout() {
long currentTime = System.currentTimeMillis();
long endTime = m_startTime + m_duration + m_extraTime;
return currentTime > endTime;
}
// 具體的 Anlalyzer示例: DumpAnlalyzer.process
// 具體的 Anlalyzer示例: DumpAnlalyzer.process
@Override
public void process(MessageTree tree) {
String domain = tree.getDomain();
if ("PhoenixAgent".equals(domain)) {
return;
} else {
MessageId messageId = MessageId.parse(tree.getMessageId());
if (messageId.getVersion() == 2) {
// 計算出目前時間範圍,
long time = tree.getMessage().getTimestamp();
long fixedTime = time - time % (TimeHelper.ONE_HOUR);
long idTime = messageId.getTimestamp();
long duration = fixedTime - idTime;
if (duration == 0 || duration == ONE_HOUR || duration == -ONE_HOUR) {
m_bucketManager.storeMessage(tree, messageId);
} else {
m_serverStateManager.addPigeonTimeError(1);
}
}
}
}
// 存儲log消息到本地檔案,并後續上傳到hdfs
@Override
public void storeMessage(final MessageTree tree, final MessageId id) {
boolean errorFlag = true;
int hash = Math.abs((id.getDomain() + '-' + id.getIpAddress()).hashCode());
int index = (int) (hash % m_gzipThreads);
MessageItem item = new MessageItem(tree, id);
LinkedBlockingQueue<MessageItem> queue = m_messageQueues.get(index % (m_gzipThreads - 1));
boolean result = queue.offer(item);
if (result) {
errorFlag = false;
} else {
if (m_last.offer(item)) {
errorFlag = false;
}
}
if (errorFlag) {
m_serverStateManager.addMessageDumpLoss(1);
}
logStorageState(tree);
}
// 每1000個消息添加一個messageDump=1000
protected void logStorageState(final MessageTree tree) {
String domain = tree.getDomain();
int size = ((DefaultMessageTree) tree).getBuffer().readableBytes();
m_serverStateManager.addMessageSize(domain, size);
if ((++m_total) % CatConstants.SUCCESS_COUNT == 0) {
m_serverStateManager.addMessageDump(CatConstants.SUCCESS_COUNT);
}
}
// EventAnalyzer.process 處理event消息
@Override
public void process(MessageTree tree) {
String domain = tree.getDomain();
if (m_serverFilterConfigManager.validateDomain(domain)) {
EventReport report = m_reportManager.getHourlyReport(getStartTime(), domain, true);
Message message = tree.getMessage();
String ip = tree.getIpAddress();
if (message instanceof Transaction) {
processTransaction(report, tree, (Transaction) message, ip);
} else if (message instanceof Event) {
processEvent(report, tree, (Event) message, ip);
}
}
}
// 循環處理多個transation
private void processTransaction(EventReport report, MessageTree tree, Transaction t, String ip) {
List<Message> children = t.getChildren();
for (Message child : children) {
if (child instanceof Transaction) {
processTransaction(report, tree, (Transaction) child, ip);
} else if (child instanceof Event) {
processEvent(report, tree, (Event) child, ip);
}
}
}
// StateAnalyzer.process 對cat的機器作展示
@Override
protected void process(MessageTree tree) {
String domain = tree.getDomain();
if (m_serverFilterConfigManager.validateDomain(domain)) {
StateReport report = m_reportManager.getHourlyReport(getStartTime(), Constants.CAT, true);
String ip = tree.getIpAddress();
Machine machine = report.findOrCreateMachine(NetworkInterfaceManager.INSTANCE.getLocalHostAddress());
machine.findOrCreateProcessDomain(domain).addIp(ip);
}
}
// 所有分析線程,由 Period 進行初始化啟動所有的Analyzer備用
public void start() {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
m_logger.info(String.format("Starting %s tasks in period [%s, %s]", m_tasks.size(),
df.format(new Date(m_startTime)), df.format(new Date(m_endTime - 1))));
for (Entry<String, List<PeriodTask>> tasks : m_tasks.entrySet()) {
List<PeriodTask> taskList = tasks.getValue();
for (int i = 0; i < taskList.size(); i++) {
PeriodTask task = taskList.get(i);
task.setIndex(i);
Threads.forGroup("Cat-RealtimeConsumer").start(task);
}
}
}
// 為保證高可用,使用 ChannelManager, 專門檢查channel通道是否仍然存活,如果出問題,則發起重連。
@Override
public void run() {
while (m_active) {
// make save message id index asyc
m_idfactory.saveMark();
checkServerChanged();
ChannelFuture activeFuture = m_activeChannelHolder.getActiveFuture();
List<InetSocketAddress> serverAddresses = m_activeChannelHolder.getServerAddresses();
doubleCheckActiveServer(activeFuture);
reconnectDefaultServer(activeFuture, serverAddresses);
try {
Thread.sleep(10 * 1000L); // check every 10 seconds
} catch (InterruptedException e) {
// ignore
}
}
}
// 最後一個關鍵點也是很重要的一個點,PeriodManager, 用于滾動式處理每小時的監控資料,儲存資料到磁盤
// PeriodManager, 用于滾動式處理每小時的監控資料
public class PeriodManager implements Task {
private PeriodStrategy m_strategy;
private List<Period> m_periods = new ArrayList<Period>();
private boolean m_active;
@Inject
private MessageAnalyzerManager m_analyzerManager;
@Inject
private ServerStatisticManager m_serverStateManager;
@Inject
private Logger m_logger;
public static long EXTRATIME = 3 * 60 * 1000L;
public PeriodManager(long duration, MessageAnalyzerManager analyzerManager,
ServerStatisticManager serverStateManager, Logger logger) {
m_strategy = new PeriodStrategy(duration, EXTRATIME, EXTRATIME);
m_active = true;
m_analyzerManager = analyzerManager;
m_serverStateManager = serverStateManager;
m_logger = logger;
}
private void endPeriod(long startTime) {
int len = m_periods.size();
for (int i = 0; i < len; i++) {
Period period = m_periods.get(i);
if (period.isIn(startTime)) {
period.finish();
m_periods.remove(i);
break;
}
}
}
public void init() {
long startTime = m_strategy.next(System.currentTimeMillis());
startPeriod(startTime);
}
@Override
public void run() {
while (m_active) {
try {
long now = System.currentTimeMillis();
long value = m_strategy.next(now);
if (value > 0) {
startPeriod(value);
} else if (value < 0) {
// 上個運作周期,即1小時已完成後,啟用一個結束線程進行規劃原來的資料
Threads.forGroup("cat").start(new EndTaskThread(-value));
}
} catch (Throwable e) {
Cat.logError(e);
}
try {
Thread.sleep(1000L);
} catch (InterruptedException e) {
break;
}
}
}
private void startPeriod(long startTime) {
long endTime = startTime + m_strategy.getDuration();
Period period = new Period(startTime, endTime, m_analyzerManager, m_serverStateManager, m_logger);
m_periods.add(period);
period.start();
}
private class EndTaskThread implements Task {
private long m_startTime;
public EndTaskThread(long startTime) {
m_startTime = startTime;
}
@Override
public void run() {
// 調用外部類的結束方法
endPeriod(m_startTime);
}
}
}
// Period.finish(), 結束
public void finish() {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date startDate = new Date(m_startTime);
Date endDate = new Date(m_endTime - 1);
m_logger.info(String.format("Finishing %s tasks in period [%s, %s]", m_tasks.size(), df.format(startDate),
df.format(endDate)));
try {
for (Entry<String, List<PeriodTask>> tasks : m_tasks.entrySet()) {
for (PeriodTask task : tasks.getValue()) {
task.finish();
}
}
} catch (Throwable e) {
Cat.logError(e);
} finally {
m_logger.info(String.format("Finished %s tasks in period [%s, %s]", m_tasks.size(), df.format(startDate),
df.format(endDate)));
}
}
// PeriodTask.finish(), 真正處理上一周期資料
public void finish() {
try {
// 調用各自分析器的 doCheckpoint 檢查,後續處理
m_analyzer.doCheckpoint(true);
// 銷毀分析器, help gc
m_analyzer.destroy();
} catch (Exception e) {
Cat.logError(e);
}
}
// 舉例 EventAnalyzer.doCheckpoint, 需加鎖處理
@Override
public synchronized void doCheckpoint(boolean atEnd) {
if (atEnd && !isLocalMode()) {
m_reportManager.storeHourlyReports(getStartTime(), StoragePolicy.FILE_AND_DB, m_index);
} else {
m_reportManager.storeHourlyReports(getStartTime(), StoragePolicy.FILE, m_index);
}
}
// DefaultReportManager.storeHourlyReports, 存儲logview, 存在統計資料到db
@Override
public void storeHourlyReports(long startTime, StoragePolicy policy, int index) {
Transaction t = Cat.newTransaction("Checkpoint", m_name);
Map<String, T> reports = m_reports.get(startTime);
ReportBucket bucket = null;
try {
t.addData("reports", reports == null ? 0 : reports.size());
if (reports != null) {
Set<String> errorDomains = new HashSet<String>();
for (String domain : reports.keySet()) {
if (!m_validator.validate(domain)) {
errorDomains.add(domain);
}
}
for (String domain : errorDomains) {
reports.remove(domain);
}
if (!errorDomains.isEmpty()) {
m_logger.info("error domain:" + errorDomains);
}
m_reportDelegate.beforeSave(reports);
if (policy.forFile()) {
bucket = m_bucketManager.getReportBucket(startTime, m_name, index);
try {
storeFile(reports, bucket);
} finally {
m_bucketManager.closeBucket(bucket);
}
}
if (policy.forDatabase()) {
storeDatabase(startTime, reports);
}
}
t.setStatus(Message.SUCCESS);
} catch (Throwable e) {
Cat.logError(e);
t.setStatus(e);
m_logger.error(String.format("Error when storing %s reports of %s!", m_name, new Date(startTime)), e);
} finally {
cleanup(startTime);
t.complete();
if (bucket != null) {
m_bucketManager.closeBucket(bucket);
}
}
}
// DefaultReportManager.storeDatabase, 存儲 db
private void storeDatabase(long startTime, Map<String, T> reports) {
Date period = new Date(startTime);
String ip = NetworkInterfaceManager.INSTANCE.getLocalHostAddress();
for (T report : reports.values()) {
try {
String domain = m_reportDelegate.getDomain(report);
HourlyReport r = m_reportDao.createLocal();
r.setName(m_name);
r.setDomain(domain);
r.setPeriod(period);
r.setIp(ip);
r.setType(1);
m_reportDao.insert(r);
int id = r.getId();
byte[] binaryContent = m_reportDelegate.buildBinary(report);
HourlyReportContent content = m_reportContentDao.createLocal();
content.setReportId(id);
content.setContent(binaryContent);
m_reportContentDao.insert(content);
m_reportDelegate.createHourlyTask(report);
} catch (Throwable e) {
Cat.getProducer().logError(e);
}
}
}
// DefaultReportManager.storeFile, 存在file, xml
private void storeFile(Map<String, T> reports, ReportBucket bucket) {
for (T report : reports.values()) {
try {
String domain = m_reportDelegate.getDomain(report);
String xml = m_reportDelegate.buildXml(report);
bucket.storeById(domain, xml);
} catch (Exception e) {
Cat.logError(e);
}
}
}
總結起來就幾個東西:
1. 使用netty開啟高性能的接收服務;
2. 使用隊列進行儲存消息;
3. 使用單獨線程檢測channel有效性,保證高可用;
4. 所有單小時的資料,儲存在記憶體中,速度特别快;
5. 多線程技術發揮得很好;
6. 模闆模式的應用,阻塞隊列的應用;
7. hdfs的應用,優雅停機的應用;
等等,來個圖展示下:
task 運作過程:
周期報告,彙總:
不要害怕今日的苦,你要相信明天,更苦!