On Mon, Feb 27, 2012 at 4:06 AM,  <php-l...@dubistmeinheld.de> wrote:
> Hi,
> I have a MySQL server A, a server B with PHP 5.3.8 and a server C with PHP
> 5.3.3. I'm connecting to the MySQL server on A via TCP from B and C using an
> internal network. Server B and C use the same PHP application. There are also
> same PHP scripts that get data from the database and then calculate up to 30
> minutes. I close all database connection before doing the calculation to save
> connections (and ports) using:
> $thread_id = mysqli_thread_id( $this->handle );
> mysqli_kill(  $this->handle, $thread_id );
> mysqli_close( $this->handle );
> During a review on our servers I discovered that server B has a lot of network
> connection in the state "CLOSE_WAIT". Server C running the same PHP
> application has not. I see the difference that server B is using mysqlnd and
> server C not.
> serverB# netstat -an | grep 3306
> tcp        1      0           CLOSE_WAIT
> serverA# cat firewall
> Feb 17 16:21:49 www kernel: [6587053.325075] SFW2-OUT-ERROR IN= OUT=tun0
> SRC= DST= LEN=40 TOS=0x00 PREC=0x00 TTL=64 ID=0 DF PROTO=TCP
> SPT=3306 DPT=47455 WINDOW=0 RES=0x00 RST URGP=0
> Does anybody have an idea why this happens? How can I avoid this or
> investigate in this? Is this a know issue?

Is the underlying OS for servers B & C exactly the same? Down to
kernel version (if Linux/Unix), NICs and driver version,
configurations, etc.?  It would help if specify OS type and kernel

Best regards,

PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php

Reply via email to