ORA-00257

oerr ora 00257
00257, 00000, "archiver error. Connect internal only, until freed."
// *Cause: The archiver process received an error while trying to archive
// a redo log. If the problem is not resolved soon, the database
// will stop executing transactions. The most likely cause of this
// message is the destination device is out of space to store the
// redo log file.
// *Action: Check archiver trace file for a detailed description
// of the problem. Also verify that the
// device specified in the initialization parameter
// ARCHIVE_LOG_DEST is set up properly for archiving.

检查发现归档空间足够，数据有配置db_recovery_file_dest和db_recovery_file_dest_size参数

db_recovery_file_dest：闪回恢复区的位置

db_recovery_file_dest_size：闪回恢复区的可用空间大小

在线修改两个参数。。。

生产上不推荐使用这个限制。。。。