Mögliche Duplikate:
Verbindungspool-Ausnahme: Es kann keine Verbindung hergestellt werden, Poolfehler Timeout wartet auf inaktives Objekt

Ich erhalte Verbindung kann nicht hergestellt werden, Poolfehler Timeout wartet auf Leerlauf-Objektfehler. Wenn ich versuche, mehr als 250 Threads in meiner Webanwendung zu erstellen. Ich erstelle eine Webanwendung mit JSF 2.0 und Hibernate.

Ich habe mit geändertem hibernate.xml, server.xml, context.xml und auch mysql Eigenschaften versucht.

Das Folgende bekomme ich.

WARN (JDBCExceptionReporter.java:233) - SQL Error: 0, SQLState: null
ERROR (JDBCExceptionReporter.java:234) - Cannot get a connection, pool error Timeout waiting for idle object
ERROR (BaseServlet.java:301) - ******** java.lang.Thread.getStackTrace(Thread.java:1426)
    Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection
    org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)
    org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)
    org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
    org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)
    org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)
    org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
    org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)
    org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)
    org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)
    sun.reflect.GeneratedMethodAccessor378.invoke(Unknown Source)
    Caused by: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot get a connection, pool error Timeout waiting for idle object
    org.apache.tomcat.dbcp.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:114)
    org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
    org.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:92)
    org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
    org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
    org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)
    org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)
    org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)
    sun.reflect.GeneratedMethodAccessor378.invoke(Unknown Source)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    Caused by: java.util.NoSuchElementException: Timeout waiting for idle object
    org.apache.tomcat.dbcp.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1144)
    org.apache.tomcat.dbcp.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:106)
    org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
    org.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:92)
    org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
    org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
    org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)
    org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)
    org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)
    sun.reflect.GeneratedMethodAccessor378.invoke(Unknown Source)

Bitte, wenn Sie eine Idee dazu haben, helfen Sie mir ......