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Reply to topic   Topic: mod_authn_dbd crash

Joined: 14 Dec 2005
Posts: 2

PostPosted: Thu 15 Dec '05 0:39    Post subject: mod_authn_dbd crash Reply with quote


I build on windows apr-util with apr_dbd_mysql.c with Mysql 5.0.15
I also build apache and all modules

The server starts fine with mod_authn_dbd and mod_dbd enabled, but each time, I try to authenticate with sql backends apache crashes...

So I tried your build, and I have the same problem...

Do you have a suggestion ?

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Joined: 15 Oct 2005
Posts: 3058
Location: Hilversum, NL, EU

PostPosted: Thu 15 Dec '05 0:57    Post subject: Reply with quote

Yep, I have the same problem building with MySQL 5..

I reported it to the developers of dbd and his answer was:


As far as I'm concerned, the MySQL driver is only tested against
MySQL 4.1 - with pretty much a default build - and on Linux and
FreeBSD platforms. In principle that shouldn't make any difference,
but in practice I don't know.

So I build with MySQL 4.1.15 and running with the 4.1.15 libmySQL.dll .

And after setting the directives higher, I got it working better:

DBDMin 10
DBDKeep 32
DBDMax 64

That runs fine fine, but after a few hours all connectons are lost with the backend and had to restart Apache.

Bottom line for me:
It is hardly tested on win32 and I believe they did not made it thread-safe (common issue with other mods using mySQL). I am not going to use it for the time being.

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Joined: 05 Dec 2005
Posts: 221

PostPosted: Thu 15 Dec '05 10:34    Post subject: Reply with quote

You've got to love that answer from the developer...lol

You would think that someone would have paid attention to what open-source and popular database systems are doing. MySQL took a lot of time developing version 5. They started releasing alpha code it seems like a year and half ago or more, and whitepapers well before that.

I guess that's the reason for different vantage points, and where forums are useful. Sometimes when you're inside you seem to never be able to see it from outside.

Word of the day - accountability!
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Joined: 14 Dec 2005
Posts: 2

PostPosted: Thu 15 Dec '05 11:20    Post subject: Reply with quote

For me, there is no change with mysql 4.1, apache still crashes each time I stop it with "dbdpersist on" and for each sql query with "dbdpersist off"...
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