description: remember that your MySQL "max_allowed_packet" configuration setting (default 1MB) mysql 默认最大能够处理的是1MB 如果你在sql使用了大的text或者BLOB数据,就会出现这个问题。 php手册上的注释 When trying to INSERT or UPDATE and trying to put a large amount of text or data (blob) into a mysql table you might run into problems. In ...
情况是这样的,我使用tomcat5.0.28+hibernate2+mysql4,在M$的系统下没出现过任何问题,但将系统装到linux上以后(redhat9及as3),发现过一段时间后就没有办法连接上数据库,查看日志,内容如下: ERROR http-8080-Processor22 net.sf.hibernate.util.JDBCExceptionReporter - Could not execute query java.sql.SQLException: No operations allowed after connection closed. Connection was ...
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