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Re: direct local change when a consumer chains a write to the producer?
- To: Howard Chu <hyc@symas.com>
- Subject: Re: direct local change when a consumer chains a write to the producer?
- From: Michael Ströder <michael@stroeder.com>
- Date: Mon, 05 Dec 2005 12:13:37 +0100
- Cc: OpenLDAP devel list <openldap-devel@OpenLDAP.org>
- In-reply-to: <43941E43.8090705@symas.com>
- References: <313423751.20051110113255@uaic.net> <43528.192.168.1.254.1132565037.squirrel@tomate.linagora.lan> <32823.10.0.14.46.1132587321.squirrel@mail.ivytech.edu> <53801.192.168.1.254.1132588966.squirrel@tomate.linagora.lan> <1132590414.3330.4.camel@ando> <33022.10.0.14.46.1132590508.squirrel@mail.ivytech.edu> <54934.192.168.1.254.1132591085.squirrel@tomate.linagora.lan> <1132592221.3330.14.camel@ando> <1132594689.6044.6.camel@ando> <6.2.1.2.0.20051121110557.03272008@mail.openldap.org> <1133163684.3318.10.camel@ando> <438AC745.7030709@symas.com> <6.2.1.2.0.20051128051020.02a88fa8@mail.openldap.org> <39326.131.175.154.56.1133193844.squirrel@131.175.154.56> <39351.131.175.154.56.1133195123.squirrel@131.175.154.56> <6.2.1.2.0.20051202123838.02f1f960@mail.openldap.org> <40013.131.175.154.56.1133775437.squirrel@131.175.154.56> <43941115.7050302@symas .com> <43941857.5050204@stroeder.com> <43941E43.8090705@symas.com>
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Howard Chu wrote:
> updates asynchronous. For clients that re-read, the update must be fully
> synchronous, and this poses a problem (ITS#3671, losing connectivity to
> a consumer will hang the provider).
Another directory product is queueing the requests when connectivity to
the replica is broken. So how about automagically fall-back to
asynchronous mode in these rather rare cases? This would hit these kind
of applications but only these.
Also the fall-back behaviour should be configured off course. The
directory admin has to carefully think about replication configuration
depending on the network connectivity anyway.
> For these fairly special cases I can see configuring syncprov to be
> synchronous based on the authcID, that would allow your PKI system and a
> chaining consumer to work correctly.
Configuration based on authcID would be ideal if it's not too much
implementation hassle.
Ciao, Michael.