Re: Doubt about timeout between nodes of cluster

  • From: Dan Norris <dannorris@xxxxxxxxxxxxx>
  • To: waldirio@xxxxxxxxx
  • Date: Thu, 12 Jun 2008 10:29:11 -0600

Waldirio,

I don't think that the time for a query to fail over is equivalent to the time that CRS requires to identify the instance failure. As you don't have a database yet, I'd recommend actually trying it before getting too caught up in what "might" happen.

Dan

Waldirio Manhães Pinheiro wrote:
   Hello Friends
 
  I'd like to ask about Oracle RAC in Linux environment. I installed two machine with RedHat AS 4Up5 and Oracle 10.2.0.3 with ClusterWare. The installation finish with successful and the data base work fine.
 
  I checked my environment of availability with the test below:
 
Station cambeba UP
Station cangua UP
 
# crs_stat -t
 
Name           Type           Target    State     Host
------------------------------------------------------------
ora....BA.lsnr application    ONLINE    ONLINE    cambeba
ora....eba.gsd application    ONLINE    ONLINE    cambeba
ora....eba.ons application    ONLINE    ONLINE    cambeba
ora....eba.vip application    ONLINE    ONLINE    cambeba
ora....UA.lsnr application    ONLINE    ONLINE    cangua
ora.cangua.gsd application    ONLINE    ONLINE    cangua
ora.cangua.ons application    ONLINE    ONLINE    cangua
ora.cangua.vip application    ONLINE    ONLINE    cangua
ora.ora10gq.db application    ONLINE    ONLINE    cangua
ora....q1.inst application    ONLINE    ONLINE    cangua
ora....q2.inst application    ONLINE    ONLINE    cambeba
 
At this point, that's ok, but when I force a power off in cangua or cambeba (the name of my machines), the time to the firt machine detect the second machine powered off is very big (between 1 and 2 min), so, if my client was working, will lost the query for time out.
 
I changed the configurations in objects ora.cambeba.vip and ora.cangua.vip, but without successful.
 
Any Ideia to fix this problem (decrease the time of check between nodes on cluster) ?!?!
 
PS: I checked in list database, but without successful about this problem

 
Thanks in advanced.
--
______________
Atenciosamente
Waldirio
msn: wmp@xxxxxxxxxxxxx
Site: www.waldirio.com.br
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