have you traced the job thanks -- LSC On 10/18/07, qihua wu <staywithpin@xxxxxxxxx> wrote: > > Hi, everyone, > > After our database changed into RAC enviroment, the batch job is very > slow. I am wondering whether RAC is not good for batch job. As batch job > only use one session and only connect to one instance, but when > update/delete data, sometime "gc current request" wait occurs as the block > must be read from the other node. Without RAC, then this kind of wait will > gone, so I think RAC is not good for batch job with plenty of update/delete > operations. Anyone doesn't agree? > > Thanks, > Qihua >