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max_allowed_packet error using MAMP
Am running drupal on MAMP (on a Macbook Pro using OSX 10.7.3). It seems to run ok apart from the fact that I keep on getting the error:
Cannot set variable `max_allowed_packet` to `536870912` in your database configuration!
Probably you do not have proper privileges on the database server.
I have created a my.cnf file in the MAMP/Library directory (a copy of my-medium.cnf. The only change I have made in this is to comment out the line
log-bin=mysql-bin
to avoid multiple error messages like the above. The max_allowed packet as defined in the file is the default value and not 536870912.
I have disabled the update status module as I understand this can cause this problem.
Can anyone help me to solve it? By the way, I have run update.php
Cannot set variable `max_allowed_packet` to `536870912` in your database configuration!
Probably you do not have proper privileges on the database server.
I have created a my.cnf file in the MAMP/Library directory (a copy of my-medium.cnf. The only change I have made in this is to comment out the line
log-bin=mysql-bin
to avoid multiple error messages like the above. The max_allowed packet as defined in the file is the default value and not 536870912.
I have disabled the update status module as I understand this can cause this problem.
Can anyone help me to solve it? By the way, I have run update.php
Content ManagementMySQL Server
Last Comment
bogorman
what MySQL version you have?
from http://dev.mysql.com about max_allowed_packet:
As of MySQL 5.1.31, the session value of this variable is read only. Before 5.1.31, setting the session value is permitted but has no effect.
As of MySQL 5.1.31, the session value of this variable is read only. Before 5.1.31, setting the session value is permitted but has no effect.
ASKER
When I run MAMP and then phpMyAdmin, under MySQL it lists:
Server version: 5.5.9
I know that in the later versions one cannot set this value. Also if I select the Variables tab it shows 1,048,576 as the value of max_allowed_packet. Strange as the error shows 536870912. I have searched in Finder for this value (either 536870912 or 512 (MByte equivalent) and I cannot find any file with these as settings for max_allowed_packet, so it looks as though it is not being set by any of the files on my disk. In my.cnf it is set as 1M (under [mysqld] and 16M under [mysqldump] - the values in my-medium.cnf.
Server version: 5.5.9
I know that in the later versions one cannot set this value. Also if I select the Variables tab it shows 1,048,576 as the value of max_allowed_packet. Strange as the error shows 536870912. I have searched in Finder for this value (either 536870912 or 512 (MByte equivalent) and I cannot find any file with these as settings for max_allowed_packet, so it looks as though it is not being set by any of the files on my disk. In my.cnf it is set as 1M (under [mysqld] and 16M under [mysqldump] - the values in my-medium.cnf.
it's weird, I've never encountered this kind of error before.
my best offer for you is using the MySql forum to post a question there, I'm sure you'll get a better help.
http://forums.mysql.com
cheers
my best offer for you is using the MySql forum to post a question there, I'm sure you'll get a better help.
http://forums.mysql.com
cheers
ASKER
Thanks, sedgwick. Sorry you weren't able to help.
ASKER
I've requested that this question be closed as follows:
Accepted answer: 0 points for bogorman's comment #37741487
for the following reason:
No one solved the problem.
Accepted answer: 0 points for bogorman's comment #37741487
for the following reason:
No one solved the problem.
Hi!
Have you tried setting max_allowed_packet to greater than 512MB in my.cnf
restart the MySQL server and see what happens ?
Usually in coded there is a check to see if your db has this value set high and if not
then it is set.
So if you have it already set high then you should get rid of this message.
Hope this helps.
Regards,
Tomas Helgi
Have you tried setting max_allowed_packet to greater than 512MB in my.cnf
restart the MySQL server and see what happens ?
Usually in coded there is a check to see if your db has this value set high and if not
then it is set.
So if you have it already set high then you should get rid of this message.
Hope this helps.
Regards,
Tomas Helgi
See my previous comment.
Regards,
Tomas Helgi
Regards,
Tomas Helgi
ASKER
Hi Tomas,
Thanks. Sorry. I did not see your message before assigning the points to me. Can I change this?
Anyway, have done as you suggested. I have also discovered that the Variables tab in phpMyAdmin shows the value of max_allowed_packet. Unfortunately after closing MAMP and restarting it the value has reverted to the 1M value. I have also tried running:
SET GLOBAL max_allowed_packet=512*102
This sets the value but as soon as I restart MAMP it has reverted to 1M. It just does not retain the value.
I have more than one user defined via phpMyAdmin. Could this affect it?
Brian
Thanks. Sorry. I did not see your message before assigning the points to me. Can I change this?
Anyway, have done as you suggested. I have also discovered that the Variables tab in phpMyAdmin shows the value of max_allowed_packet. Unfortunately after closing MAMP and restarting it the value has reverted to the 1M value. I have also tried running:
SET GLOBAL max_allowed_packet=512*102
This sets the value but as soon as I restart MAMP it has reverted to 1M. It just does not retain the value.
I have more than one user defined via phpMyAdmin. Could this affect it?
Brian
Hi!
After little googling and looking at the MAMP documentation
http://documentation.mamp.info/en/mamp/how-tos/set-the-mysql-default-storage-engine
I see that there could be another my.cnf file located
/Applications/MAMP/conf/
which is the file MAMP uses by default.
Edit that my.cnf file and restart the MAMP.
Regards,
Tomas Helgi
After little googling and looking at the MAMP documentation
http://documentation.mamp.info/en/mamp/how-tos/set-the-mysql-default-storage-engine
I see that there could be another my.cnf file located
/Applications/MAMP/conf/
which is the file MAMP uses by default.
Edit that my.cnf file and restart the MAMP.
Regards,
Tomas Helgi
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ASKER
Hi Tomas,
Think I have solved it at last.
I noticed that on the Privileges page of phpMyAdmin there is a link:
"Note: phpMyAdmin gets the users' privileges directly from MySQL's privilege tables. The content of these tables may differ from the privileges the server uses, if they have been changed manually. In this case, you should reload the privileges before you continue."
I clicked on this and the problem was solved! Think, in trying to sort out the Privileges error I must have changed some setting in Privileges and did not notice the link. Anyway, the error has gone. Thanks so much for trying to help.
Brian
Think I have solved it at last.
I noticed that on the Privileges page of phpMyAdmin there is a link:
"Note: phpMyAdmin gets the users' privileges directly from MySQL's privilege tables. The content of these tables may differ from the privileges the server uses, if they have been changed manually. In this case, you should reload the privileges before you continue."
I clicked on this and the problem was solved! Think, in trying to sort out the Privileges error I must have changed some setting in Privileges and did not notice the link. Anyway, the error has gone. Thanks so much for trying to help.
Brian
ASKER
Hi Tomas,
Thanks for your most helpful suggestions. I hesitate to make any other changes as it all works now but am very grateful for the work you have done on it.
Can I reassign the points?
Brian
Thanks for your most helpful suggestions. I hesitate to make any other changes as it all works now but am very grateful for the work you have done on it.
Can I reassign the points?
Brian
Yes, as I objected the closing request the question is as I belive still open.
Regards,
Tomas Helgi
Regards,
Tomas Helgi
ASKER
Thanks again, Tomas.