In my node.js app I use the knex to connect to to mysql db
now I got many of warning messages:
Error: Connection lost: The server closed the connection. Ignoring invalid configuration option passed to Connection: reconnect. This is currently a warning, but in future versions of MySQL2, an error will be thrown if you pass an invalid configuration option to a Connection
I want to know what can I do to fix it and remove this message
While looking for result there is a link to the problem here
https://github.com/sidorares/node-mysql2/blob/master/lib/connection_config.js#L64-L74
Then I found the problem
In heroku the api add "?reconnect=true" to the connection
https://devcenter.heroku.com/articles/cleardb#provisioning-the-shared-mysql-add-on
this query string create the error.
So now I don't know what needed to be done.
Add the ?"reconnect=true" to the connection like heroku recommend
Or remove this parameter like the warning
I have a java web application which is deployed on a linux server using tomcat and mysql. Most of the time in the morning , When i try to login , it gives the following error : "The last packet successfully received from the server was 60,244,374 milliseconds ago...." This is a common issue and i have already insert some properties in my tomcat connection and i need to wait for testing. Meanwhile , I want to customize this error message to "Server is down". Can someone tell me how to catch this exception?
Note that i use spring security for authentication and for database : hibernate and jpa (jndi)Please find attached error message. This error message is too complex for user!
I have transfered my site(CMS Magento) on another hosting, but I have the newest version on this (Apache version 2.2.29 | PHP version 5.5.16 | MySQL version 5.6.16-cll-lve) not like old host(about v5.1).
I get this error in frontend "Fatal error: Call to a member function useLoadDataFields() on a non-object in /home/xxxxxx/public_html/app/code/core/Mage/Eav/Model/Config.php on line 610" but the header is still working. I have opened the log and shows this error "a:5:{i:0;s:63:"SQLSTATE[HY000]: General error: 2006 MySQL server has gone away";i:1;s:1580:"#0 /home/xxxxxx/public_html/lib/Varien/Db/Statement/Pdo/Mysql.php(110): Zend_Db_Statement_Pdo->_execute(Array).... ".
In admin when I log in I get this error "Fatal error: Class 'Mage_Adminhtml_Block_Widget_Grid_Column_Renderer_Abstract' not found in /home/sexup/public_html/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Column/Renderer/Text.php on line 37"
Please help me solve this problem.
"SQLSTATE[HY000]: General error: 2006 MySQL server has gone away"
did you set up the database connection in app/etc/config ?
if answer is yes, maybe problems are with your new host resources (some shared hostings are not appropriate for magento )?
under this link is explanation of db error http://dev.mysql.com/doc/refman/5.0/en/gone-away.html
I know that many people get the same kind of error when they try to install Drupal 7. But after trying out the solutions that I read about, I still didn't manage to install Drupal properly.
After installing 27 modules (of 28) I get the following message:
An AJAX HTTP error occurred.
HTTP Result Code: 500 Debugging information follows.
Path: `http://localhost/drupal/install.php?profile=standard&locale=en&id=1&op=do`
StatusText: Service unavailable (with message)
ResponseText: PDOException: SQLSTATE[HY000]:
General error: 2006 MySQL server has gone away:
SELECT expire, value FROM {semaphore}
WHERE name = :name; Array ( [:name] => menu_rebuild )
in lock_may_be_available()
(line 167 of C:\wamp\www\drupal\includes\lock.inc).Uncaught exception thrown in shutdown function.PDOException:
SQLSTATE[HY000]: General error: 2006 MySQL server has gone away:
DELETE FROM {semaphore} WHERE (value = :db_condition_placeholder_0) ;
Array ( [:db_condition_placeholder_0] => 802228002541876118e8773.14607894 )
in lock_release_all()
(line 269 of C:\wamp\www\drupal\includes\lock.inc).
Uncaught exception thrown in session handler.PDOException: SQLSTATE[HY000]:
General error: 2006 MySQL server has gone away:
SELECT 1 AS expression FROM {sessions} sessions
WHERE ( (sid = :db_condition_placeholder_0) AND
(ssid = :db_condition_placeholder_1) );
Array ( [:db_condition_placeholder_0] => ZLNqcOjZv5_OY8Y_fNwE0Il6hHmlJCLVL9qK5XUBTIo
[:db_condition_placeholder_1] => ) in _drupal_session_write()
(line 209 of C:\wamp\www\drupal\includes\session.inc).'
When I restart WAMP server after it stopped, I can install Drupal anyway, but then it is not working properly.
I have raised the number of the max_allowed_packet to various high amounts.
I have raised other numbers in my my.ini.
I have installed WAMP anew.
Each time I try anew, I delete Drupal, my databank and my history in Chrome.
My PHP version is 5.5.12
I work in Windows 8
I work on my localhost.
What else can I try?
I tried to increase the numbers in my.ini and php.ini, but that didn't help. I drop my database after each error.
I have a new idea myself:
Could it have something to do with my settings.php?
Before I start I set: $update_free_access = FALSE; to TRUE (as administrator in Notepad++). After I close the file I reopen it to check whether it has really changed. After I get the error I reopen the settings.php file and it says $update_free_access = FALSE again. But I did not change it back myself.
Could this be the source of my problem? How can I avoid this?
And should I do something with this in the same file?
'pdo' => array( * PDO::ATTR_TIMEOUT => 5,
Is there something else I should change in the settings.php?
Perhaps not enough MySQL memory! Increasing MySQL memory might solve this issue (my.conf).
See here: https://www.drupal.org/node/1014172
Try to change it in your php.ini:
max_allowed_packet=100M
I think it fixes your problem. Don't forget to restart wamp.
Regards.
I think first time you tried installing Drupal, it must have met some unexpected termination. The above error also comes when all the tables and variables at install time are not configured properly.
I suggest to drop your database and attempt a fresh install again. Also, do ensure your installation is not timing out.
RE: I have raised other numbers in my my.ini.
If you are using the WAMPServer 64bit install, please check that the my.ini file contains this section header [wampmysqld64]
i.e.
Replace [wampmysqld] with [wampmysqld64]
This section name should match the service name that MySQL is run under which in the 64bit install of WAMPServer is wampmysqld64. Unfortunately the 2.5 (64bit) release has this error in it.
Please check if your environment matches System requirements for Drupal.
Drupal 7:
MySQL 5.0.15/MariaDB 5.1.44/Percona Server 5.1.70 or higher with PDO,
PostgreSQL 8.3 or higher with PDO,
SQLite 3.3.7 or higher
and database requirements which says:
It may be necessary to set the system variable max_allowed_packet to at least 16M. Some inexpensive hosting plans set this value too low (the MySQL default is only 1M). In that case, you may need to choose a better hosting plan.
So basically you need to edit your my.cnf (e.g. ~/.my.cnf) and set or increase the value of max_allowed_packet your under [mysqld] section, e.g.
[mysqld]
max_allowed_packet=64M
If it's still failing, don't hesitate to increase it further more like 256M in case when Drupal is in need of parsing huge amount of data.
See: B.5.2.9 MySQL server has gone away for more detailed information.
I get the following exception in my project (.NET socket server):
ERROR HY000: [ODBC Driver 3.51] Can't connect to MySQL server 'someHost' (10060)
The error does not occur every single time, though. So that rules out configuration errors or incorrect login details. Also when I show all my %max% variables, I'm not getting close on any of them. Unfortunately the verbosity of the logging cannot be changed, and the logs have not been written to recently.
What can cause these sporadic connect failures?