1.问题现象抽取进程常常running,但是没有新产生trail文件,lag比较大 GGSCI (xxxdb) > info all Program Status Group Lag at Chkpt Time Since Chkpt MANAGER RUNNING EXTRACT RUNNING EXT1 :: :: EXTRACT RUNNING PUMP1 :: :: GGSCI (xxxdb) > GGSCI (xxxdb) > info EXT1,showch EXTRACT
日常运维过程中,可能发现OGG同步进程延迟很高: 本篇介绍其中的一种方式. OGG复制进程,或者说同步进程及通过解析ogg trail文件,输出dml语句,在目标库执行dml操作,那么延迟高可能性其一.执行dml操作效率太低. 本篇不考虑并发过高或其它原因. 本次只考虑是执行update or delete的时候SQL效率执行太差! 导致OGG复制进程延迟很高. GGSCI > info all Program Status Group Lag at Chkpt Time Since Chkpt
OGG replicat 进程使用的 TCP port 来源于: TCP PORT USED BY REPLICAT PROCESSES (文档 ID 1060954.1) 适用于: Oracle GoldenGate - Version 10.4.0.12 and later Information in this document applies to any platform. ***Checked for relevance on 25-May-2012*** 症状: 若是一个客户基于少
),value )); INSERT INTO @tab EXEC('DBCC OPENTRAN WITH TABLERESULTS'); SELECT name,CAST(value AS DATETIME) startDate,getdate() currentDate ,DATEDIFF(s,CAST(value AS DATETIME),getdate()) diffsecond FROM @tab WHERE name in ('OLDACT_STARTTIME') SELECT sp
oracle最坑爹的地方:你insert update delete之后 或者kill死锁的时候记得一定要提交事务不然就是死锁卡在那里了 记住 kill死锁也是要提交事务的 select * from v$session where sid in (select session_id from v$locked_object) SELECT s.username,l.OBJECT_ID,l.SESSION_ID,s.SERIAL#,l.ORACLE_USERNAME,l.OS_USER