On May 14, 2009, at 6:07 PM, Barney Desmond wrote:
If this turns into a high volume site, would file based aliases
fall apart
after a certain amount? I also see maintaining a alias mapping via
a file
managed by a web service to be prone to error. If anything I wold
store the
mappings in a database, and write them out clean on schedule. What
are the
upper limits of how many forwards I should feel comfortable
maintaing as a
local file?
With enough sanity checks you can manage an alias file with scripts
(run via web frontend), but it's not much fun. I believe (redhat)
default hash-maps perform and scale quite nicely. CDB maps are said to
scale even better, and I think numbers quoted on this list previously
say... 1 million is no problem for CDB?
Thank you very much, I do not think a million will be hit for some
time. Is there any penalty when you run postmap to read in the
changes to the virtual_alias_maps file? I know it is not a server
restart, and can happen without interruption of service, though I
wonder what happens when you issue a postmap on a million line file.
Thanks.
--
Scott * If you contact me off list replace talklists@ with scott@ *
