Java 我的Storm拓扑既不工作（不生成输出），也不失败（不生成错误或异常）
我有一个拓扑结构，我试图统计SimulatorSpout（非真实流）生成的单词出现次数，在写入MySQL数据库表之后，表模式非常简单：Java 我的Storm拓扑既不工作（不生成输出），也不失败（不生成错误或异常）,java,apache-storm,Java,Apache Storm,我有一个拓扑结构，我试图统计SimulatorSpout（非真实流）生成的单词出现次数，在写入MySQL数据库表之后，表模式非常简单： Field | Type | ... ID | int(11) | Auto_icr word | varchar(50) | count | int(11) | 但我面临着一个奇怪的问题（正如我前面提到的） 我成功地将拓扑提交到我的Storm群集，该群集由4个监控器组成，我可以在Stor
Field | Type | ...
ID | int(11) | Auto_icr
word | varchar(50) |
count | int(11) |
public class MySQLConnection {
private static Connection conn = null;
private static String dbUrl = "jdbc:mysql://192.168.0.2:3306/test?";
private static String dbClass = "com.mysql.jdbc.Driver";
public static Connection getConnection() throws SQLException, ClassNotFoundException {
Class.forName(dbClass);
conn = DriverManager.getConnection(dbUrl, "root", "qwe123");
return conn;
}
}
public class SentenceSpout extends BaseRichSpout{
private static final long serialVersionUID = 1L;
private boolean _completed = false;
private SpoutOutputCollector _collector;
private String [] sentences = {
"Obama delivered a powerfull speech against USA",
"I like cold beverages",
"RT http://www.turkeyairline.com Turkish Airlines has delayed some flights",
"don't have a cow man...",
"i don't think i like fleas"
};
private int index = 0;
public void open (Map config, TopologyContext context, SpoutOutputCollector collector) {
_collector = collector;
}
public void nextTuple () {
_collector.emit(new Values(sentences[index]));
index++;
if (index >= sentences.length) {
index = 0;
Utils.waitForSeconds(1);
}
}
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("sentence"));
}
public void ack(Object msgId) {
System.out.println("OK: " + msgId);
}
public void close() {}
public void fail(Object msgId) {
System.out.println("FAIL: " + msgId);
}
}
public class SplitSentenceBolt extends BaseRichBolt {
private static final long serialVersionUID = 1L;
private OutputCollector _collector;
public void prepare (Map config, TopologyContext context, OutputCollector collector) {
_collector = collector;
}
public void execute (Tuple tuple) {
String sentence = tuple.getStringByField("sentence");
String httpRegex = "((https?|ftp|telnet|gopher|file)):((//)|(\\\\))+[\\w\\d:#@%/;$()~_?\\+-=\\\\\\.&]*";
sentence = sentence.replaceAll(httpRegex, "").replaceAll("RT", "").replaceAll("[.|,]", "");
String[] words = sentence.split(" ");
for (String word : words) {
if (!word.isEmpty())
_collector.emit(new Values(word.trim()));
}
_collector.ack(tuple);
}
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("word"));
}
}
public class WordCountBolt extends BaseRichBolt {
private static final long serialVersionUID = 1L;
private HashMap<String , Integer> counts = null;
private OutputCollector _collector;
private ResultSet resSet = null;
private Statement stmt = null;
private Connection _conn = null;
private String path = "/home/hduser/logOfStormTops/logger.txt";
String rLine = null;
public void prepare (Map config, TopologyContext context, OutputCollector collector) {
counts = new HashMap<String, Integer>();
_collector = collector;
}
public void execute (Tuple tuple) {
int insertResult = 0;
int updateResult = 0;
String word = tuple.getStringByField("word");
//----------------------------------------------------
if (!counts.containsKey(word)) {
counts.put(word, 1);
try {
insertResult = wordInsertIfNoExist(word);
if (insertResult == 1) {
_collector.ack(tuple);
} else {
_collector.fail(tuple);
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
} else {
//-----------------------------------------------
counts.put(word, counts.get(word) + 1);
try {
// writing to db
updateResult = updateCountOfExistingWord(word);
if (updateResult == 1) {
_collector.ack(tuple);
} else {
_collector.fail(tuple);
}
// Writing to file
BufferedWriter buffer = new BufferedWriter(new FileWriter(path));
buffer.write("[ " + word + " : " + counts.get("word") + " ]");
buffer.newLine();
buffer.flush();
buffer.close();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("{word-" + word + " : count-" + counts.get(word) + "}");
}
}
public void declareOutputFields(OutputFieldsDeclarer declarer) {
}
// *****************************************************
public int wordInsertIfNoExist(String word) throws ClassNotFoundException, SQLException {
String query = "SELECT word FROM wordcount WHERE word=\"" + word + "\"";
String insert = "INSERT INTO wordcount (word, count) VALUES (\"" + word + "\", 1)";
_conn = MySQLConnection.getConnection();
stmt = _conn.createStatement();
resSet = stmt.executeQuery(query);
int res = 0;
if (!resSet.next()) {
res = stmt.executeUpdate(insert);
} else {
System.out.println("Yangi qiymatni kirityotrganda nimadir sodir bo'ldi");
}
resSet.close();
stmt.close();
_conn.close();
return res;
}
public int updateCountOfExistingWord(String word) throws ClassNotFoundException, SQLException {
String update = "UPDATE wordcount SET count=count+1 WHERE word=\"" + word + "\"";
_conn = MySQLConnection.getConnection();
stmt = _conn.createStatement();
int result = stmt.executeUpdate(update);
//System.out.println(word + "'s count has been updated (incremented)");
resSet.close();
stmt.close();
_conn.close();
return result;
}
}
public class WordCountTopology {
private static final String SENTENCE_SPOUT_ID = "sentence-spout";
private static final String SPLIT_BOLT_ID = "split-bolt";
private static final String COUNT_BOLT_ID = "count-bolt";
private static final String TOPOLOGY_NAME = "NewWordCountTopology";
@SuppressWarnings("static-access")
public static void main(String[] args) throws AlreadyAliveException, InvalidTopologyException {
SentenceSpout spout = new SentenceSpout();
SplitSentenceBolt splitBolt = new SplitSentenceBolt();
WordCountBolt countBolt = new WordCountBolt();
TopologyBuilder builder = new TopologyBuilder();
builder.setSpout(SENTENCE_SPOUT_ID, spout, 2);
builder.setBolt(SPLIT_BOLT_ID, splitBolt, 4).shuffleGrouping(SENTENCE_SPOUT_ID);
builder.setBolt(COUNT_BOLT_ID, countBolt, 4).fieldsGrouping(SPLIT_BOLT_ID, new Fields("word"));
Config config = new Config();
config.setMaxSpoutPending(100);
config.setDebug(true);
StormSubmitter submitter = new StormSubmitter();
submitter.submitTopology(TOPOLOGY_NAME, config, builder.createTopology());
}
}
public class SentenceSpout extends BaseRichSpout{
private static final long serialVersionUID = 1L;
private boolean _completed = false;
private SpoutOutputCollector _collector;
private String [] sentences = {
"Obama delivered a powerfull speech against USA",
"I like cold beverages",
"RT http://www.turkeyairline.com Turkish Airlines has delayed some flights",
"don't have a cow man...",
"i don't think i like fleas"
};
private int index = 0;
public void open (Map config, TopologyContext context, SpoutOutputCollector collector) {
_collector = collector;
}
public void nextTuple () {
_collector.emit(new Values(sentences[index]));
index++;
if (index >= sentences.length) {
index = 0;
Utils.waitForSeconds(1);
}
}
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("sentence"));
}
public void ack(Object msgId) {
System.out.println("OK: " + msgId);
}
public void close() {}
public void fail(Object msgId) {
System.out.println("FAIL: " + msgId);
}
}
public class SplitSentenceBolt extends BaseRichBolt {
private static final long serialVersionUID = 1L;
private OutputCollector _collector;
public void prepare (Map config, TopologyContext context, OutputCollector collector) {
_collector = collector;
}
public void execute (Tuple tuple) {
String sentence = tuple.getStringByField("sentence");
String httpRegex = "((https?|ftp|telnet|gopher|file)):((//)|(\\\\))+[\\w\\d:#@%/;$()~_?\\+-=\\\\\\.&]*";
sentence = sentence.replaceAll(httpRegex, "").replaceAll("RT", "").replaceAll("[.|,]", "");
String[] words = sentence.split(" ");
for (String word : words) {
if (!word.isEmpty())
_collector.emit(new Values(word.trim()));
}
_collector.ack(tuple);
}
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("word"));
}
}
public class WordCountBolt extends BaseRichBolt {
private static final long serialVersionUID = 1L;
private HashMap<String , Integer> counts = null;
private OutputCollector _collector;
private ResultSet resSet = null;
private Statement stmt = null;
private Connection _conn = null;
private String path = "/home/hduser/logOfStormTops/logger.txt";
String rLine = null;
public void prepare (Map config, TopologyContext context, OutputCollector collector) {
counts = new HashMap<String, Integer>();
_collector = collector;
}
public void execute (Tuple tuple) {
int insertResult = 0;
int updateResult = 0;
String word = tuple.getStringByField("word");
//----------------------------------------------------
if (!counts.containsKey(word)) {
counts.put(word, 1);
try {
insertResult = wordInsertIfNoExist(word);
if (insertResult == 1) {
_collector.ack(tuple);
} else {
_collector.fail(tuple);
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
} else {
//-----------------------------------------------
counts.put(word, counts.get(word) + 1);
try {
// writing to db
updateResult = updateCountOfExistingWord(word);
if (updateResult == 1) {
_collector.ack(tuple);
} else {
_collector.fail(tuple);
}
// Writing to file
BufferedWriter buffer = new BufferedWriter(new FileWriter(path));
buffer.write("[ " + word + " : " + counts.get("word") + " ]");
buffer.newLine();
buffer.flush();
buffer.close();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("{word-" + word + " : count-" + counts.get(word) + "}");
}
}
public void declareOutputFields(OutputFieldsDeclarer declarer) {
}
// *****************************************************
public int wordInsertIfNoExist(String word) throws ClassNotFoundException, SQLException {
String query = "SELECT word FROM wordcount WHERE word=\"" + word + "\"";
String insert = "INSERT INTO wordcount (word, count) VALUES (\"" + word + "\", 1)";
_conn = MySQLConnection.getConnection();
stmt = _conn.createStatement();
resSet = stmt.executeQuery(query);
int res = 0;
if (!resSet.next()) {
res = stmt.executeUpdate(insert);
} else {
System.out.println("Yangi qiymatni kirityotrganda nimadir sodir bo'ldi");
}
resSet.close();
stmt.close();
_conn.close();
return res;
}
public int updateCountOfExistingWord(String word) throws ClassNotFoundException, SQLException {
String update = "UPDATE wordcount SET count=count+1 WHERE word=\"" + word + "\"";
_conn = MySQLConnection.getConnection();
stmt = _conn.createStatement();
int result = stmt.executeUpdate(update);
//System.out.println(word + "'s count has been updated (incremented)");
resSet.close();
stmt.close();
_conn.close();
return result;
}
}
public class WordCountTopology {
private static final String SENTENCE_SPOUT_ID = "sentence-spout";
private static final String SPLIT_BOLT_ID = "split-bolt";
private static final String COUNT_BOLT_ID = "count-bolt";
private static final String TOPOLOGY_NAME = "NewWordCountTopology";
@SuppressWarnings("static-access")
public static void main(String[] args) throws AlreadyAliveException, InvalidTopologyException {
SentenceSpout spout = new SentenceSpout();
SplitSentenceBolt splitBolt = new SplitSentenceBolt();
WordCountBolt countBolt = new WordCountBolt();
TopologyBuilder builder = new TopologyBuilder();
builder.setSpout(SENTENCE_SPOUT_ID, spout, 2);
builder.setBolt(SPLIT_BOLT_ID, splitBolt, 4).shuffleGrouping(SENTENCE_SPOUT_ID);
builder.setBolt(COUNT_BOLT_ID, countBolt, 4).fieldsGrouping(SPLIT_BOLT_ID, new Fields("word"));
Config config = new Config();
config.setMaxSpoutPending(100);
config.setDebug(true);
StormSubmitter submitter = new StormSubmitter();
submitter.submitTopology(TOPOLOGY_NAME, config, builder.createTopology());
}
}
public class SentenceSpout extends BaseRichSpout{
private static final long serialVersionUID = 1L;
private boolean _completed = false;
private SpoutOutputCollector _collector;
private String [] sentences = {
"Obama delivered a powerfull speech against USA",
"I like cold beverages",
"RT http://www.turkeyairline.com Turkish Airlines has delayed some flights",
"don't have a cow man...",
"i don't think i like fleas"
};
private int index = 0;
public void open (Map config, TopologyContext context, SpoutOutputCollector collector) {
_collector = collector;
}
public void nextTuple () {
_collector.emit(new Values(sentences[index]));
index++;
if (index >= sentences.length) {
index = 0;
Utils.waitForSeconds(1);
}
}
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("sentence"));
}
public void ack(Object msgId) {
System.out.println("OK: " + msgId);
}
public void close() {}
public void fail(Object msgId) {
System.out.println("FAIL: " + msgId);
}
}
public class SplitSentenceBolt extends BaseRichBolt {
private static final long serialVersionUID = 1L;
private OutputCollector _collector;
public void prepare (Map config, TopologyContext context, OutputCollector collector) {
_collector = collector;
}
public void execute (Tuple tuple) {
String sentence = tuple.getStringByField("sentence");
String httpRegex = "((https?|ftp|telnet|gopher|file)):((//)|(\\\\))+[\\w\\d:#@%/;$()~_?\\+-=\\\\\\.&]*";
sentence = sentence.replaceAll(httpRegex, "").replaceAll("RT", "").replaceAll("[.|,]", "");
String[] words = sentence.split(" ");
for (String word : words) {
if (!word.isEmpty())
_collector.emit(new Values(word.trim()));
}
_collector.ack(tuple);
}
public void declareOutputFields(OutputFieldsDeclarer declarer) {
declarer.declare(new Fields("word"));
}
}
public class WordCountBolt extends BaseRichBolt {
private static final long serialVersionUID = 1L;
private HashMap<String , Integer> counts = null;
private OutputCollector _collector;
private ResultSet resSet = null;
private Statement stmt = null;
private Connection _conn = null;
private String path = "/home/hduser/logOfStormTops/logger.txt";
String rLine = null;
public void prepare (Map config, TopologyContext context, OutputCollector collector) {
counts = new HashMap<String, Integer>();
_collector = collector;
}
public void execute (Tuple tuple) {
int insertResult = 0;
int updateResult = 0;
String word = tuple.getStringByField("word");
//----------------------------------------------------
if (!counts.containsKey(word)) {
counts.put(word, 1);
try {
insertResult = wordInsertIfNoExist(word);
if (insertResult == 1) {
_collector.ack(tuple);
} else {
_collector.fail(tuple);
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
} else {
//-----------------------------------------------
counts.put(word, counts.get(word) + 1);
try {
// writing to db
updateResult = updateCountOfExistingWord(word);
if (updateResult == 1) {
_collector.ack(tuple);
} else {
_collector.fail(tuple);
}
// Writing to file
BufferedWriter buffer = new BufferedWriter(new FileWriter(path));
buffer.write("[ " + word + " : " + counts.get("word") + " ]");
buffer.newLine();
buffer.flush();
buffer.close();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("{word-" + word + " : count-" + counts.get(word) + "}");
}
}
public void declareOutputFields(OutputFieldsDeclarer declarer) {
}
// *****************************************************
public int wordInsertIfNoExist(String word) throws ClassNotFoundException, SQLException {
String query = "SELECT word FROM wordcount WHERE word=\"" + word + "\"";
String insert = "INSERT INTO wordcount (word, count) VALUES (\"" + word + "\", 1)";
_conn = MySQLConnection.getConnection();
stmt = _conn.createStatement();
resSet = stmt.executeQuery(query);
int res = 0;
if (!resSet.next()) {
res = stmt.executeUpdate(insert);
} else {
System.out.println("Yangi qiymatni kirityotrganda nimadir sodir bo'ldi");
}
resSet.close();
stmt.close();
_conn.close();
return res;
}
public int updateCountOfExistingWord(String word) throws ClassNotFoundException, SQLException {
String update = "UPDATE wordcount SET count=count+1 WHERE word=\"" + word + "\"";
_conn = MySQLConnection.getConnection();
stmt = _conn.createStatement();
int result = stmt.executeUpdate(update);
//System.out.println(word + "'s count has been updated (incremented)");
resSet.close();
stmt.close();
_conn.close();
return result;
}
}
public class WordCountTopology {
private static final String SENTENCE_SPOUT_ID = "sentence-spout";
private static final String SPLIT_BOLT_ID = "split-bolt";
private static final String COUNT_BOLT_ID = "count-bolt";
private static final String TOPOLOGY_NAME = "NewWordCountTopology";
@SuppressWarnings("static-access")
public static void main(String[] args) throws AlreadyAliveException, InvalidTopologyException {
SentenceSpout spout = new SentenceSpout();
SplitSentenceBolt splitBolt = new SplitSentenceBolt();
WordCountBolt countBolt = new WordCountBolt();
TopologyBuilder builder = new TopologyBuilder();
builder.setSpout(SENTENCE_SPOUT_ID, spout, 2);
builder.setBolt(SPLIT_BOLT_ID, splitBolt, 4).shuffleGrouping(SENTENCE_SPOUT_ID);
builder.setBolt(COUNT_BOLT_ID, countBolt, 4).fieldsGrouping(SPLIT_BOLT_ID, new Fields("word"));
Config config = new Config();
config.setMaxSpoutPending(100);
config.setDebug(true);
StormSubmitter submitter = new StormSubmitter();
submitter.submitTopology(TOPOLOGY_NAME, config, builder.createTopology());
}
}
这是因为在抛出异常时没有调用_collector.ack（tuple）。当有太多待处理的元组时，Spoute将停止发送新元组。尝试抛出RuntimeException而不是printStackTrace。这是因为在抛出异常时没有调用_collector.ack（元组）。当有太多待处理的元组时，Spoute将停止发送新元组。尝试抛出RuntimeException而不是printStackTrace。检查日志以查看是否有抛出的异常。我还用try-catch块将execute（）逻辑包围在bolt中，catch块将消息写入日志。您可以发布storm ui图片吗$暴风雪；然后在您的浏览器上转到localhost:8080，我们已经在几个版本的storm中看到了这种问题，它似乎与内部消息传递有关。netty的最新版本似乎特别有问题，我们将回到zmq。您使用的是哪个版本以及主管设置是什么？@bridriver我使用的是0.9.3版本orry@SQL.injection我无法上载图片，因为我刚刚启动了我的配置文件，它说我至少需要10个声誉：）检查日志以查看是否引发了任何异常。我还用try-catch块将execute（）逻辑包围在bolt中，catch块将消息写入日志。您可以发布storm ui图片吗$暴风雪；然后在您的浏览器上转到localhost:8080，我们已经在几个版本的storm中看到了这种问题，它似乎与内部消息传递有关。netty的最新版本似乎特别有问题，我们将回到zmq。您使用的是哪个版本？主管设置是什么？@bridriver我使用的是0.9.3版本orry@SQL.injection我无法上传图片，因为我刚刚开始我的个人资料，它说我至少需要10个声誉：）