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Replication traffic on the network has spiked up !!!

This is a discussion on Replication traffic on the network has spiked up !!! within the Informix forums, part of the Database Server Software category; --> Running Informix Dynamic Server 2000 Version 9.21.UC5 on SunOS 5.8. Last week we changed the following configuration parameters LRU_MAX_DIRTY ...


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  #1 (permalink)  
Old 04-19-2008, 06:21 PM
Jack A
 
Posts: n/a
Default Replication traffic on the network has spiked up !!!

Running Informix Dynamic Server 2000 Version 9.21.UC5 on SunOS 5.8. Last
week we changed the following configuration parameters

LRU_MAX_DIRTY - 30 to 5
LRU_MIN_DIRTY - 20 to 2
NUMAIOVPS - 2 to 6
CLEANERS - 8 to 16
LRUAGE - 1

Common sense suggests that network traffic in replication would depend only
on the amount of data modifed on the primary. Is it possible that any of
there parameter changes can cause too much replication traffic ?

Thanks in advance


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  #2 (permalink)  
Old 04-19-2008, 06:21 PM
Madison Pruet
 
Posts: n/a
Default Re: Replication traffic on the network has spiked up !!!

HDR or ER?

How are you able to monitor replication traffic?

M.P.

"Jack A" <hrehal@yahoo.com> wrote in message
news:5eef134e5c079abca0ea83d4dc748474@free.teranew s.com...
> Running Informix Dynamic Server 2000 Version 9.21.UC5 on SunOS 5.8. Last
> week we changed the following configuration parameters
>
> LRU_MAX_DIRTY - 30 to 5
> LRU_MIN_DIRTY - 20 to 2
> NUMAIOVPS - 2 to 6
> CLEANERS - 8 to 16
> LRUAGE - 1
>
> Common sense suggests that network traffic in replication would depend

only
> on the amount of data modifed on the primary. Is it possible that any of
> there parameter changes can cause too much replication traffic ?
>
> Thanks in advance
>
>



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  #3 (permalink)  
Old 04-19-2008, 06:21 PM
Jack A
 
Posts: n/a
Default Re: Replication traffic on the network has spiked up !!!

I'll answer this question with another question. I think it is HDR. Any way
of being 100% sure. How do I check ?

The network guys isolated the port to which the traffic was found to be
going. Its TCP Port 1530 which is supposed to be the informix replication
port.

"Madison Pruet" <mpruet@comcast.net> wrote in message
news:WIcYa.55982$It4.31506@rwcrnsc51.ops.asp.att.n et...
> HDR or ER?
>
> How are you able to monitor replication traffic?
>
> M.P.
>
> "Jack A" <hrehal@yahoo.com> wrote in message
> news:5eef134e5c079abca0ea83d4dc748474@free.teranew s.com...
> > Running Informix Dynamic Server 2000 Version 9.21.UC5 on SunOS 5.8.

Last
> > week we changed the following configuration parameters
> >
> > LRU_MAX_DIRTY - 30 to 5
> > LRU_MIN_DIRTY - 20 to 2
> > NUMAIOVPS - 2 to 6
> > CLEANERS - 8 to 16
> > LRUAGE - 1
> >
> > Common sense suggests that network traffic in replication would depend

> only
> > on the amount of data modifed on the primary. Is it possible that any of
> > there parameter changes can cause too much replication traffic ?
> >
> > Thanks in advance
> >
> >

>
>



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  #4 (permalink)  
Old 04-19-2008, 06:21 PM
Madison Pruet
 
Posts: n/a
Default Re: Replication traffic on the network has spiked up !!!

run onstat -g ddr
If it produces output, then you are running with ER(CDR)

onstat -g dri will show the HDR state.

It's a little difficult to isolate HDR traffic from normal client/server
traffic. That's why I asked the question.

M.Pruet

"Jack A" <hrehal@yahoo.com> wrote in message
news:2ae7a70cc141d60ffa90046e01603107@free.teranew s.com...
> I'll answer this question with another question. I think it is HDR. Any

way
> of being 100% sure. How do I check ?
>
> The network guys isolated the port to which the traffic was found to be
> going. Its TCP Port 1530 which is supposed to be the informix replication
> port.
>
> "Madison Pruet" <mpruet@comcast.net> wrote in message
> news:WIcYa.55982$It4.31506@rwcrnsc51.ops.asp.att.n et...
> > HDR or ER?
> >
> > How are you able to monitor replication traffic?
> >
> > M.P.
> >
> > "Jack A" <hrehal@yahoo.com> wrote in message
> > news:5eef134e5c079abca0ea83d4dc748474@free.teranew s.com...
> > > Running Informix Dynamic Server 2000 Version 9.21.UC5 on SunOS 5.8.

> Last
> > > week we changed the following configuration parameters
> > >
> > > LRU_MAX_DIRTY - 30 to 5
> > > LRU_MIN_DIRTY - 20 to 2
> > > NUMAIOVPS - 2 to 6
> > > CLEANERS - 8 to 16
> > > LRUAGE - 1
> > >
> > > Common sense suggests that network traffic in replication would depend

> > only
> > > on the amount of data modifed on the primary. Is it possible that any

of
> > > there parameter changes can cause too much replication traffic ?
> > >
> > > Thanks in advance
> > >
> > >

> >
> >

>
>



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