[389-users] Read data immediately after write

[Ankur Agarwal]

Can i use chaining between master-slave without having different "ou"? I mean if i have exactly same directory structure and same set of OUs can i still have chaining between master and slave?

Cheers,
Ankur


--- On Thu, 10/8/09, Michael Ströder <michael at stroeder.com> wrote:


From: Michael Ströder <michael at stroeder.com>
Subject: Re: [389-users] Read data immediately after write
To: "General discussion list for the 389 Directory server project." <fedora-directory-users at redhat.com>
Date: Thursday, October 8, 2009, 1:38 AM


Ankur Agarwal wrote:
> 
> I have a master-slave set-up with write operations always being done to
> the master node. Now there is an issue where i need to read some data
> immediately after write, and my read request goes to the slave. It fails
> in cases when replication hasnt happened from master to slave before
> this read operation.

You simply should not do that. Read from the master if you have to rely on the
consistency of what you recently wrote to the master.

> Is there a LDAP level configuration to handle this situation?
> Can chaining help in this case?

No. (Except chaining the read requests of the writing client to the master
which you don't want I guess).

Ciao, Michael.

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