BIND not loading into memory on first transfer

[Matus UHLAR - fantomas]

On 26.03.15 11:34, Frank Even wrote:
>Zone files were in place for the necessary domains, but were outdated
>(assuming one of our updates broke something somewhere, they were all
>on average 3 months old).

>Here is where the issue is.  I've generally found if BIND fails to
>write the zone, it generally loads it into memory (masking the fact
>that there is an issue here for an extended period of time).  In this
>particular instance, the masters ended up under maintenance shortly
>after these boxes rebooted, so they were unable to transfer the zone
>from them for another 2 hours.  These boxes were serving stale data
>after boot despite being able to accomplish one zone transfer after
>boot.  It seems that failing the first zone transfer did NOT load the
>zone into memory (but subsequent zone transfers while still failing to
>write the tmp file DID load the zone into memory).
>
>I guess the question really is, is this expected behavior or a bug?

What's the SOA? It's possible that the zones were not expired, so they were
provided as saved on disk. Since BIND wasn't able to transfer newer
versions, it continued providing old versions.

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