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contextCSN values and MMR


Are contextCSN values on all replicas really in sync if changes were correctly

I've implemented a monitoring check used with normal MMR setup (OpenLDAP
2.4.35, own build on Debian Squeeze) which also checks the contextCSN values
on all replicas compared by server-id.

Sometimes we observe, even in isolated tests, that contextCSN values for a
certain server-id differ for quite a while (up to hours) even though the
changes coming from that server were definitely replicated to all other
replicas. After a while the contextCSN values get suddenly updated.
Unfortunately this does not always happen.

Any hint is highly appreciated.

Ciao, Michael.

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