Gemfire 서버를 시작하고 다음 주소로 바인딩합니다. myserver : 10344. (서버와 로케이터는 문제없이 시작됩니다.) 그런 다음 GFSH와 클라이언트 "펄스"에 의한 연결을 확인합니다. 모든 검사가 성공적입니다. 다음 단계에서는 Java 클라이언트를 개발하고 서버에 연결할 수 없습니다.Gemfire JDBC 연결 예외
내 프로젝트는 다음과 같은 종속성 메이븐에 의해 구축:
<dependency>
<groupId>com.pivotal.gemfirexd</groupId>
<artifactId>gemfirexd</artifactId>
<version>1.4.1</version>
</dependency>
<dependency>
<groupId>com.pivotal.gemfirexd</groupId>
<artifactId>gemfirexd-client</artifactId>
<version>1.4.1</version>
</dependency>
(모든 Gemfire 종속성이
http://dist.gemstone.com/maven/release에서 다운로드)
코드 소스 : 나는 다음과 같은 예외가
package com.mycompany.app;
import java.sql.Connection;
import java.sql.DriverManager;
public class App {
private void connect() {
try {
Class.forName("com.pivotal.gemfirexd.jdbc.ClientDriver");
String x = "jdbc:gemfirexd://myserver:10344/";
System.out.println(x);
final Connection conn = DriverManager.getConnection(x);
System.out.println("Connected ");
conn.close();
System.out.println("Disconnected");
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
new App().connect();
}
}
:
java.sql.SQLNonTransientConnectionException: A communications error has been detected: Failed after trying all available servers: [], for control URL: myserver[10334].
at com.pivotal.gemfirexd.internal.client.am.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:77)
at com.pivotal.gemfirexd.internal.client.am.SqlException.getSQLException(SqlException.java:401)
at com.pivotal.gemfirexd.internal.client.net.NetConnection.getPreferredServer(NetConnection.java:1554)
at com.pivotal.gemfirexd.internal.client.net.NetConnection.preConnect(NetConnection.java:1902)
at com.pivotal.gemfirexd.internal.client.net.NetConnection.newAgent_(NetConnection.java:2368)
at com.pivotal.gemfirexd.internal.client.am.Connection.<init>(Connection.java:595)
at com.pivotal.gemfirexd.internal.client.net.NetConnection.<init>(NetConnection.java:248)
at com.pivotal.gemfirexd.internal.client.net.NetConnection40.<init>(NetConnection40.java:86)
at com.pivotal.gemfirexd.internal.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(ClientJDBCObjectFactoryImpl40.java:290)
at com.pivotal.gemfirexd.jdbc.ClientDriver.connect(ClientDriver.java:161)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at com.mycompany.app.App.connect(App.java:15)
at com.mycompany.app.App.main(App.java:27)
Caused by: DisconnectException 08006: A communications error has been detected: Failed after trying all available servers: [], for control URL: myserver[10334].
... 12 more
Caused by: java.sql.SQLNonTransientConnectionException: A communications error has been detected: Connection reset.
at com.pivotal.gemfirexd.internal.client.am.SQLExceptionFactory40.getSQLException(SQLExceptionFactory40.java:77)
at com.pivotal.gemfirexd.internal.client.am.SqlException.getSQLException(SqlException.java:401)
at com.pivotal.gemfirexd.jdbc.ClientDriver.connect(ClientDriver.java:170)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at com.pivotal.gemfirexd.internal.client.net.NetConnection.getPreferredServer(NetConnection.java:1451)
... 11 more
Caused by: DisconnectException 08006: A communications error has been detected: Connection reset.
at com.pivotal.gemfirexd.internal.client.net.NetAgent.throwCommunicationsFailure(NetAgent.java:527)
at com.pivotal.gemfirexd.internal.client.net.Reply.fill(Reply.java:183)
at com.pivotal.gemfirexd.internal.client.net.Reply.ensureALayerDataInBuffer(Reply.java:222)
at com.pivotal.gemfirexd.internal.client.net.Reply.readDssHeader(Reply.java:324)
at com.pivotal.gemfirexd.internal.client.net.Reply.startSameIdChainParse(Reply.java:1154)
at com.pivotal.gemfirexd.internal.client.net.NetConnectionReply.readExchangeServerAttributes(NetConnectionReply.java:61)
at com.pivotal.gemfirexd.internal.client.net.NetConnection.readServerAttributesAndKeyExchange(NetConnection.java:1013)
at com.pivotal.gemfirexd.internal.client.net.NetConnection.flowServerAttributesAndKeyExchange(NetConnection.java:941)
at com.pivotal.gemfirexd.internal.client.net.NetConnection.flowUSRIDONLconnect(NetConnection.java:796)
at com.pivotal.gemfirexd.internal.client.net.NetConnection.flowConnect(NetConnection.java:580)
at com.pivotal.gemfirexd.internal.client.net.NetConnection.<init>(NetConnection.java:259)
at com.pivotal.gemfirexd.internal.client.net.NetConnection40.<init>(NetConnection40.java:86)
at com.pivotal.gemfirexd.internal.client.net.ClientJDBCObjectFactoryImpl40.newNetConnection(ClientJDBCObjectFactoryImpl40.java:290)
at com.pivotal.gemfirexd.jdbc.ClientDriver.connect(ClientDriver.java:161)
... 14 more
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at com.pivotal.gemfirexd.internal.client.net.Reply.fill(Reply.java:181)
... 26 more