Re: [389-users] Read data immediately after write

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Ankur Agarwal wrote:
No i am not talking about proxy server but a master-slave set-up of OpenLDAP 2.3 and need to achieve chaining between them.

OpenLDAP 2.3 master and OpenLDAP 2.3 slave? If so, then you should ask on one of the openldap lists.
Cheers,
Ankur


--- On *Mon, 10/19/09, Rich Megginson /<rmeggins@xxxxxxxxxx>/* wrote:


    From: Rich Megginson <rmeggins@xxxxxxxxxx>
    Subject: Re: [389-users] Read data immediately after write
    To: "General discussion list for the 389 Directory server
    project." <fedora-directory-users@xxxxxxxxxx>
    Date: Monday, October 19, 2009, 1:04 PM

    Ankur Agarwal wrote:
    > I want to achieve chaining between a master and slave having
    exactly same OUs and are based on OpenLDAP 2.3.
    >
    > What would be the configuration to achieve that?
> So 389 is the proxy server and openldap is hosting the real data? It
    should just work.  Have you tried this configuration?  If so, what
    problems did you encounter?
    > Regards,
    > Ankur
    >
    > Sent from my iPhone
    >
    > On Oct 14, 2009, at 1:55 AM, Rich Megginson <rmeggins@xxxxxxxxxx
    <http://us.mc589.mail.yahoo.com/mc/compose?to=rmeggins@xxxxxxxxxx>>
    wrote:
    >
    > Ankur Agarwal wrote:
    > Thanks Rich...Would it be possible for you to share some
    configuration details to achieve this for OpenLDAP version 2.3?
    >
    > To achieve what exactly for OpenLDAP 2.3?  Chain from 389 to
    OpenLDAP?
    >
    > Cheers,
    > A
    >
    > --- On *Mon, 10/12/09, Rich Megginson /<rmeggins@xxxxxxxxxx
    <http://us.mc589.mail.yahoo.com/mc/compose?to=rmeggins@xxxxxxxxxx>>/*
    wrote:
    >
    >
    >    From: Rich Megginson <rmeggins@xxxxxxxxxx
    <http://us.mc589.mail.yahoo.com/mc/compose?to=rmeggins@xxxxxxxxxx>>
    >    Subject: Re: [389-users] Read data immediately after write
    >    To: "General discussion list for the 389 Directory server
    >    project." <fedora-directory-users@xxxxxxxxxx
    <http://us.mc589.mail.yahoo.com/mc/compose?to=fedora-directory-users@xxxxxxxxxx>>
    >    Date: Monday, October 12, 2009, 10:47 AM
    >
    >    Ankur Agarwal wrote:
    >    > 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?
    >    >
    >    Yes.
    >    >
    >    > Cheers,
    >    > Ankur
    >    >
    >    >
    >    > --- On *Thu, 10/8/09, Michael Ströder
    /<michael@xxxxxxxxxxxx
    <http://us.mc589.mail.yahoo.com/mc/compose?to=michael@xxxxxxxxxxxx>
> <http://us.mc589.mail.yahoo.com/mc/compose?to=michael@xxxxxxxxxxxx>>/*
    >    wrote:
    >    >
    >    >
    >    >     From: Michael Ströder <michael@xxxxxxxxxxxx
    <http://us.mc589.mail.yahoo.com/mc/compose?to=michael@xxxxxxxxxxxx>
> <http://us.mc589.mail.yahoo.com/mc/compose?to=michael@xxxxxxxxxxxx>>
    >    >     Subject: Re: [389-users] Read data immediately after write
    >    >     To: "General discussion list for the 389 Directory server
    >    >     project." <fedora-directory-users@xxxxxxxxxx
    <http://us.mc589.mail.yahoo.com/mc/compose?to=fedora-directory-users@xxxxxxxxxx>
> <http://us.mc589.mail.yahoo.com/mc/compose?to=fedora-directory-users@xxxxxxxxxx>>
    >    >     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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    <http://us.mc589.mail.yahoo.com/mc/compose?to=389-users@xxxxxxxxxx>
> <http://us.mc589.mail.yahoo.com/mc/compose?to=389-users@xxxxxxxxxx> > > <http://us.mc589.mail.yahoo.com/mc/compose?to=389-users@xxxxxxxxxx> > > https://www.redhat.com/mailman/listinfo/fedora-directory-users
    >    >
    >    >
    >    >
> ------------------------------------------------------------------------
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    <http://us.mc589.mail.yahoo.com/mc/compose?to=389-users@xxxxxxxxxx>
> <http://us.mc589.mail.yahoo.com/mc/compose?to=389-users@xxxxxxxxxx>
    >    > https://www.redhat.com/mailman/listinfo/fedora-directory-users
> > >
    >
    >    -----Inline Attachment Follows-----
    >
    >    --
    >    389 users mailing list
    >    389-users@xxxxxxxxxx
    <http://us.mc589.mail.yahoo.com/mc/compose?to=389-users@xxxxxxxxxx>
> <http://us.mc589.mail.yahoo.com/mc/compose?to=389-users@xxxxxxxxxx>
    >    https://www.redhat.com/mailman/listinfo/fedora-directory-users
    >
    >
    >
    >
    ------------------------------------------------------------------------
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    <http://us.mc589.mail.yahoo.com/mc/compose?to=389-users@xxxxxxxxxx>
    > https://www.redhat.com/mailman/listinfo/fedora-directory-users
> >
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    > --
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    > 389-users@xxxxxxxxxx
    <http://us.mc589.mail.yahoo.com/mc/compose?to=389-users@xxxxxxxxxx>
    > https://www.redhat.com/mailman/listinfo/fedora-directory-users
    >
    >
    >
> >
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    > 389-users@xxxxxxxxxx
    <http://us.mc589.mail.yahoo.com/mc/compose?to=389-users@xxxxxxxxxx>
    > https://www.redhat.com/mailman/listinfo/fedora-directory-users
>


    -----Inline Attachment Follows-----

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