org.postgresql.util.PSQLException: This connection has been closed 是PostgreSQL JDBC 驱动抛出的异常,表明你尝试在一个已经关闭的数据库连接上执行操作。以下是对该问题的详细分析和解决步骤: 1. 确认异常信息 该异常确实来自 PostgreSQL JDBC 驱动,通常表明数据库连接已经不可用。 2. 分析异常原因 该异常通常有以...
Cause: org.postgresql.util.PSQLException: This connection has been closed. springcloud 报这个错误,经过排查发现,在给微服务增加了几个实例后,微服务配置的最大链接数*实例数>数据库设置得最大链接数,造成了有一些微服务的数据库链接并没有获取到实际的数据库链接。调整参数后,此问题解决。
I encounters an error as detailed in the bottom line knime.log: "This connection has been closed." (the corresponding line is including "AbstractJdbc2Connection.checkClosed."). I have changed the value in the attached file preferences_kneme_databases.PNG, but it does not improve. ...
Have you searched the CLOSED issues already?Yes How about checkingstackoverflow?Yes In both of these I didn't really find the same issue. I am having the following error with HikariCP, saying that the ResultSet is closed, and this happens when I try to get a connection out of the pool...
轻车熟路,连接归还是通过Connection的代理对象重写close方法完成的,通过前面的学习我们已经知道Connectin的代理对象是DruidPooledConnection,所以我们直接看DruidPooledConnection的close方法。 ### DruidPooledConnection#close 直接上代码: ``` public void close() throws SQLException { if...
Closed opened this issueFeb 3, 2023· 9 comments Copy link xlofhappycommentedFeb 3, 2023 在DruidAbstractDataSource中 的 createPhysicalConnection 方法中, if (driver != null && "org.postgresql.Driver".equals(driver.getClass().getName())) { ...
但需要注意的是,此种方式由于比较直接,不管是否数据库有无IO情况,因此,备份的时候需要先停止数据库,恢复的时候要删除原数据库文件,重新覆盖回去后,才可以在启动数据库,如果在数据库启动的时候备份,那么,可能会造成数据备份不全,也可以理解为冷备方式。
transmitted data may remain unacknowledged before a connection is forcibly closed. A value of zero uses the system default. This parameter is ignored for connections made via a Unix-domain socket. It is only supported on systems where TCP_USER_TIMEOUT is available; on other systems, it has ...
处理结果: needsinfo 状态: closed→ new Replying to timgraham: Why do you think this is a bug in Django? How do you expect Django to react when the database terminates the connection? I think Django should do reconnect, when connection is lost. Or should I use something like this ...
(this); } @Override public boolean isClosed() throws SQLException { return connection.isClosed(); } @Override public DatabaseMetaData getMetaData() throws SQLException { return connection.getMetaData(); } @Override public void setReadOnly(boolean readOnly) throws SQLException { connection.setRead...