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Exchange 2007

we have CAS AND hub Server , it is also DC , we received last night around 12.30 am  an error (recent replication attempt failed)

I don't see anything in event logs, do I need to check any event id
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pramod1
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pramod1
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IvanSystem EngineerCommented:
Hi,

you have multiple DC?

From cmd, run as admin, type: repadmin /showrepl
That will show you when was the last time successful replication.

Also, you can run repadmin /queue to see if there are some items waiting in queue to be replicated.

If that has happened only 1 time, maybe there was some network problem, or if your second DC is in another site, maybe there was WAN problem..

Regards,
Ivan.
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pramod1Author Commented:
I just ran repadmin/showrepl it all show successful

how can I chck what happened at 12.30am
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pramod1Author Commented:
queue contains 0 items
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IvanSystem EngineerCommented:
Hi,

that means that replication is ok right now.
Take a look at event, there should be some info at that time, what has happened, so maybe something can be concluded from it.

Are your DC in same location/ site, or are they in different locations? I am asking just to get insight if maybe WAN is the problem.
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pramod1Author Commented:
when I run dcdiag it shows replication received latency warning of oneof the sites

but when I run repadmin/ show repl it shows all successfull
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pramod1Author Commented:
we have 2 dc's here in same site and it replicates with other dc's . all I see is event id 1034

all I see is proxy request to one of the sites time d out at same time

but dcdiag which I ran show sreplication received latency for different site
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IvanSystem EngineerCommented:
Hi,

you sure that that second DC was not turned off, rebooted or something, that could cause this problem..
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pramod1Author Commented:
no the 2nd dc at our site is fine, we added  new 2860 mailboxes yesterday but that should not be problem
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pramod1Author Commented:
I just need to know when I run dcdiag I see replication received latency for one site dated 10-12-2016 at 5.50

but when I run repadmin/showrepl I see replication successful for same time dated today?
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pramod1Author Commented:
how I can test if replication with the site is working ok
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pramod1Author Commented:
I ran replsummary it shows one of sites rpc server is unavailable, is that the reason
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IvanSystem EngineerCommented:
It can be a reason, yes.

If one of DC is not working, then you are always going to get error that replication with one of servers is not working.

Command repadmin/showrepl should show you replication status with all your DC's.
Take a look at status for each one, and it should tell you when did it fail last time, so you know which DC was  problematic.
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pramod1Author Commented:
I am kind of surprised that repadmin/replsummary shows the error tht rpc server failed on one of the sites dc and repadmin /show repl doesn't show any error
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