[ic] mysql having problems reconnecting on catalog reconfig
mike at perusion.com
Thu Nov 10 14:15:50 UTC 2011
Quoting Peter (peter at pajamian.dhs.org):
> I'm having problems with IC 5.7 (latest GIT HEAD), perl 5.12.4 and
> mysql. When a catalog reconfig is done none of the sql tables would
> load back up all giving errors like this in catalog.cfg:
> table 'variants' failed: table variants connect failed -- unknown error.
> Driver 'mysql' installed?
> I traced the problem down to DBI.pm and found that if I change line 372
> $db = DBI->connect( @call ) unless $bad;
> $db = DBI->connect( @call );
> ...then everything now works again. It would seem that for some reason
> the ached connection goes bad, but it all comes back to life if I allow
> an attempt to go through to reconnect.
> I then checked the git logs to find out the history behind that line of
> code and traced it back to this commit:
> I'm not sure I really understand what the problem was that was fixed
> back in 2001 by this commit, but perhaps someone (Mike?) could shed some
> light on it? It seems to make sense to me to try to connect again if
> the connection goes bad, so why are we not doing that now? Is there any
> other light that can be shed on this problem?
It's a part of the alternate DSN stuff, where you can fall back to a
different database server if one is down.
But the bigger question is -- why did your connect fail originally,
so that you have a connection marked as bad?
Perusion -- Expert Interchange Consulting http://www.perusion.com/
phone +1.765.328.4479 <mike at perusion.com>
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