我开发了Storm拓扑，以从Hortonworks上的kafka代理接收JSONArray数据，
我不知道为什么我的kafkaSpout不使用HDP中来自Kafka Brokers的消息，但是成功提交了风暴拓扑，但是当我看到拓扑时:0％的数据已被消耗!
topology visualisation
这是我的Scheme class :
public class ClientInfosSheme implements Scheme{
private static final long serialVersionUID = -2990121166902741545L;
private static final Logger LOG = Logger.getLogger(ClientInfosSheme.class);
public String codeBanque;
public String codeAgence;
public String codeGuichet;
public String devise;
public String numCompte;
public String codeClient;
public String codeOperation;
public String sensOperation;
public String montantOperation;
public String dateValeur;
public String dateComptable;
public String utilisateur;
public static final String CODEBANQUE="codeBanque";
public static final String CODEAGENCE="codeAgence";
public static final String CODEGUICHET="codeGuichet";
public static final String DEVISE="devise";
public static final String NUMCOMPTE="numCompte";
public static final String CODECLIENT="codeClient";
public static final String CODEOPERATION="codeOperation";
public static final String SENSOPERATION="sensOperation";
public static final String MONTANTOPERATION="montantOperation";
public static final String DATEVALEUR="dateValeur";
public static final String DATECOMPTABLE="dateComptable";
public static final String UTILISATEUR="utilisateur";
public List<Object> deserialize(byte[] bytes) {
try{
String clientInfos = new String(bytes, "UTF-8");
JSONArray JSON = new JSONArray(clientInfos);
for(int i=0;i<JSON.length();i++) {
JSONObject object_clientInfos=JSON.getJSONObject(i);
try{
//Récupérations des données
this.codeBanque=object_clientInfos.getString("codeBanque");
this.codeAgence=object_clientInfos.getString("codeAgence");
this.codeGuichet=object_clientInfos.getString("codeGuichet");
this.devise=object_clientInfos.getString("devise");
this.numCompte=object_clientInfos.getString("numCompte");
this.codeClient=object_clientInfos.getString("codeClient");
this.codeOperation=object_clientInfos.getString("codeOperation");
this.sensOperation=object_clientInfos.getString("sensOperation");
this.montantOperation=object_clientInfos.getString("montantOperation");
this.dateValeur=object_clientInfos.getString("dateValeur");
this.dateComptable=object_clientInfos.getString("dateComptable");
this.utilisateur=object_clientInfos.getString("utilisateur");
}
catch(Exception e)
{
e.printStackTrace();
}
}// End For Loop
} catch (JSONException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (UnsupportedEncodingException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
return new Values(codeBanque, codeAgence, codeGuichet, devise, numCompte, codeClient, codeOperation, sensOperation,
montantOperation,dateValeur, dateComptable,utilisateur);
}// End Function deserialize
public Fields getOutputFields() {
return new Fields(CODEBANQUE,CODEAGENCE,CODEGUICHET,DEVISE,NUMCOMPTE,
CODECLIENT,CODEOPERATION, SENSOPERATION,MONTANTOPERATION,DATEVALEUR,DATECOMPTABLE,UTILISATEUR);
}
}
和属性文件:
#Broker host
kafka.zookeeper.host.port=sandbox.hortonworks.com
#Kafka topic to consume.
kafka.topic=INFOCLIENT
#Location in ZK for the Kafka spout to store state.
kafka.zkRoot=/client_infos_sprout
#Kafka Spout Executors.
spout.thread.count=1
当我使用另一个消费者时，存储在Kafka Brokers中的数据如下:
[{"codeBanque":"xx","codeAgence":"yy","codeGuichet":"zz","devise":"tt"..},
{"codeBanque":"xx1","codeAgence":"yy1","codeGuichet":"zz1","devise":"tt1"..},
{"codeBanque":"xx2","codeAgence":"yy2","codeGuichet":"zz2","devise":"tt2"..}]
所以我的问题为什么它不使用来自Kafka Brokers的消息？
请我需要帮助
最佳答案
正如您在日志中发现的那样，您的Spout不会“使用”消息，因为拓扑结构有错误并且不会确认元组-因此，Spout会重播它们。这是按设计工作。
一旦拓扑稳定，您将观察到偏移量正在增加。在此之前，Spout会将消息发送到拓扑中，但是您将无法观察结果。
如果没有看到calculCleRib方法以及如何将其集成到您的拓扑中，我们将无法帮助您调试该方面。