On Wed, Feb 9, 2011 at 6:10 PM, <rusty.ma...@sungard.com> wrote: > If this is version 7.0.1, there is a hostname caching 'feature' now in > NetBackup (Which I do NOT like, Symantec!!!). It caches the IP for each host > configured in NBU and sometimes this can result in the incorrect IP being > tied to the hostname. The default TTL for this cached data is one hour, but > you can refresh it by running the following command on the Master/Media > server(s) and/or clients: > > bpclntcmd -clear_host_cache > > So, you could see that even though the name resolution may be fixed in DNS > or hosts, NBU may still have it cached. I've heard there's a way to reduce > the time this is refreshed, but I don't remember where it's at. >
The DNS caching behavior is controlled by the 2nd parameter of the master server's VNET_OPTIONS in bp.conf; units are in seconds. The default in 7.0.1 is 1 hour, but we've reduced this to 5 min in our environment without ill effect: VNET_OPTIONS = 120 300 200 40 3 1 30 5 1793 32 0 0 .../Ed
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