Andrey Kotrekhov wrote:
> äÏÂÒÙÊ ÄÅÎØ.
> I have the same problem.
> We increase max number of users in the kernel config and recompile.
> The problem is solve at most.
> Try to increase max number of open files in kernel.
> > Hi,
> > I'm currently running FreeBSD 4.3-stable with MySQL 3.23.39. My problem
> > is weird an unpreditable. I have a database driven website which has
> > several hundred visitors per day. After viewing my logs on a daily
> > basis, I see a "Unknown database" error appear from time to time. Now,
> > I also have a script set in cron which accesses the database every so
> > often an I see the same "Unknown database" error from time to time when
> > this script is ran. The error is completely spuradic and
> > unpredictable. Sometimes I go for days without seeing the problem. Not
> > only that, if I notice the problem immediately and check things out, I
> > can connect to the database. So within a matter of minutes it goes from
> > an Unknown database to a
> > database that is alive and accessible.
> > I've tried upping the "mbufs", checking the "file descriptors",
> > "tweaking the mysqld server params", applying "soft-updates", and
> > "turning off Apache::DBI", nothing seems to work. I've seen at least 2
> > other mailing list entries where people have the exact same problem.
> > The only solution I received was to switch to a Linux OS.
> > I've also read that there is a threading problem with FreeBSD+MySQL on
> > an SMP machine. I'm running a machine with only 1 processor.
> > Do you have any idea as to what may be causing this problem and if so,
> > do you have a suggested solution?
> > Any help you may be able to give will certainly be appreciated.
> > Thanks,
> > Ozette Brown
> > ---------------------------------------------------------------------
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> Best regards.
> Andrey Kotrekhov kota@stripped
> ISP Alkar Teleport
> ÔÅÌ. +380 562 34-00-44
Thank you for the reply.
I read somewhere that when checking your maximum file descriptors your "kern.maxfiles
should be greater than kern.maxfilesperproc. My settings are:
kern.maxfiles = 8232
kern.maxfilesperproc = 8232
So, with that said, my kern.maxfiles should be much higher, no (based on your reply)?
When I check my maximum file descriptors, I should see:
somenumber / what I set my kern.maxfiles to be ....example: 535/8232
Is this correct?
Also, are you running the same version of FreeBSD (4.3-stable) and MySQL (3.23.39)?