Error While Connecting To MySQL. Failover Enacted

Jul 4, 2007

I have this problem with MySQL


Error while connecting to MySQL. Failover enacted.

MySQL is Running and Working, how i can fix this problem?

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MySQL Replication/Failover

May 24, 2008

I'm working for a client who has an e-commerce site currently hosted on a shared hosting solution.

He is now looking for 100% uptime (as near as), so I have suggested that we get 2 VPS and use DNS monitoring to switch servers as required (from DNSmadeEasy).

This is all fine, and the websites files/images do not change often, so I can use rsync every so often to sync these. Not a problem.

What does change frequently is the mySQL db for the site.

I've been looking at MySQL replication, but this seems to be no good. If one server goes down, then the other one takes over, they don't automatically sync themselves after they come back up. It seems MySQL cluster is best, but this needs 3 servers and they all need to be on the same LAN.

I've read you can set MySQL replication to MASTER-MASTER so that it acts like a cluster, and resyncs itself as required.

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Connecting To Mysql - GoDaddy

May 15, 2008

i have a windows shared hosting with Go-daddy, created the database and all is fine, but not sure about the DB name.

the name of the Database Host? is it local host?

shall i add any suffix to the DB name?

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Connecting To Mysql From Another Server

Feb 10, 2007

i have a mysql databse on 1 server hosted by a company and i want to connect to that databse from a website hosted on another server by another company.

i have chnaged my php connect script from 'localhost' to the ip of the name server on port 3306, i know this isnt right..

how do i find the ip of my website and port of the db?

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SQL Connection Error When Connecting Via Lan

Jul 18, 2008

I have two servers (one for apache and one for SQL) where both are in the same DC. I looked at the BW graph and saw that the SQL server has pulled approx 4TB BW on the internet the last 30 days.

Since both are in the same DC, it would be better to run it via the network since it has free lan traffic compared to wasting a lot of "internet BW".

I'm currently using in the SQL connection string, but when I tried with the IP, the php script stalls for 30 seconds and then reports: "Can't connect to MySQL server on 'hostname' (4)".

Could this be a iptables issue? I also tried to add the apache IP in the "Additional MySQL Access Hosts" from cPanel, but that didn't help much.

Apache -

If I'm not mistaken, if the subnet isn't set to, both servers should be within range.

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Connecting Hosted Web To My Home Mysql Db

Oct 30, 2008

I have Mysql installed on my Home server with Java server, and I have php WEB site hosted with Let's say Godaddy or whatever. I need to connect this WEB to my MYSQL. How can i do that?

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Connecting To Remote MySQL Failing

Aug 3, 2008

I'm facing some odd issues with 2 servers located in the same datacenter.

One server is the HTTP server, and every 5 minutes it works, then for 5 minutes Server One and Server Two (MySQL) hate each other and refuse to talk to each other. Not only can neither not connect to each others MySQL, but also neither can ping each other.

The odd thing is, Server Three can however connect to the Server Two MySQL with no problems during this period. It seems to be just the communication between Server One and Server Two that keeps getting halted.

I've tried "service iptables stop" to disable the firewall, and changing SELinux to disabled, but neither have fixed it.

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Error Connecting To IMAP Server

Dec 3, 2006


Error connecting to IMAP server: localhost.
111 : Connection refused

I keep getting this error message from Squirelmail when i try to login can someone help me out.

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Error Connecting To Cpanel Server

Apr 21, 2009

I seem to be having problems every 20 accounts i create through clientexec work fine than i whole bunch dont i seem to be able to fix it by using a new hash key.

However it happened again at 44 accounts i dot have any idea what to do! i get a error log saying this.

If it helps all the signups are over 2 days.

Sorry, we could not create the account. The following error was
produced: The package was not found on the server.

Here is the list of plans found on the server:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
<html xmlns
<link rel
<meta http-equiv
<title>cPanel&reg; 11</title>
<div id
<div id

<div id
<form action
<input type
<table width
<td align
<td><input type
<tr class
<br />
&copy; cPanel, Inc. 2006-2008

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Error Connecting To IMAP Server: Localhost

Dec 29, 2008

i'm on Linux dedicated box -DirectAdmin panel

I use Squirrelmail to se my e-mail. When i try to log inn and read mail i get this message: Error connecting to IMAP server: localhost. Where can i change this......


SquirrelMail version 1.4.17
By the SquirrelMail Project Team
Error connecting to IMAP server: localhost.
111 : Connection refused


ERROR (2): fsockopen() [function.fsockopen]: unable to connect to localhost:110 (Connection refused) (/var/www/html/webmail/inc/class.uebimiau_mail.php:80)

RoundCube Webmail

Connection to Imap server failed

Read on another forum, that this can solve the problem

/etc/rc.d/init.d/imaps restart
/etc/rc.d/init.d/imap restart

-bash: /etc/rc.d/init.d/imaps: No such file or directory

-bash: /etc/rc.d/init.d/imap: No such file or directory

telnet localhost 143 for imap or 993 for imap over ssl

Usage: telnet [-8] [-E] [-K] [-L] [-X atype] [-a] [-d] [-e char] [-k realm]
[-l user] [-f/-F] [-n tracefile] [-r] [-x] [host-name [port]]

Also Xinetd restart don't help

[root@server etc]# /etc/rc.d/init.d/xinetd restart
Stopping xinetd: [ OK ]
Starting xinetd: [ OK ]

Looks like that Imap isn't installed ?
Correct me if i'm wrong ..............

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Plesk 12.x / Windows :: PHP Connecting Over Localhost To MySQL Very Slow

Jan 27, 2015

I have windows server 2012 and Plesk v12.0.18 #30 - I noticed speed problem.

When I try to connect to mySQL with:

$conn = new mysqli('localhost', 'joomla_***', '*****', 'joomla_test');

Connection takes 1 second!!!When I try to connect with '' instead of 'localhost' connection takes 0,009 seconds.

1. I tried solution to add line ' localhost' to c:windowssystem32driversetshosts - but no luck.

2. I tried to edit C:Program Files (x86)ParallelsPleskMySQLDatamy.ini - adding lines
then restarted mySql but 1 second lag time on connection was still there.

3. I even tried to disable IPv6 but still no luck

I guess all users windows windows server 2012 has the same problem??!?!...

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Installed MySQL In /usr/local/mysql But Error In /var/lib/mysql

Jan 21, 2007

I installed the MySQL binary packages in /usr/local/mysql/ after removing the MySQL RPM package. MySQL is functioning when I executed /usr/local/mysql/bin/safe_mysqld. I reinstalled MySQL before I installed PHP. When I used a PHP script to access a MySQL database, it outputs an error:

Warning: mysqli::mysqli() [function.mysqli-mysqli]: (HY000/2002): can't connect to local mysql server through socket /var/lib/mysql/mysql.sock in index.php on line 2
However, I installed MySQL in /usr/local/mysql, not in /var/lib/mysql. How do I fix MySQL?

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MySQL Error : MySQL Server Has Gone Away

Dec 18, 2007

I keep getting this error :
MySQL Error : MySQL server has gone away

How do I fix it?

my.cnf contents


back_log = 75
max_connections = 800
key_buffer = 48M
myisam_sort_buffer_size = 64M
join_buffer_size = 1M
read_buffer_size = 1M
sort_buffer_size = 2M
table_cache = 3000
thread_cache_size = 128
wait_timeout = 90
connect_timeout = 30
tmp_table_size = 128M
max_heap_table_size = 64M
max_allowed_packet = 256M
net_buffer_length = 16384
max_connect_errors = 10
thread_concurrency = 4
read_rnd_buffer_size = 786432
bulk_insert_buffer_size = 8M
query_cache_limit = 3M
query_cache_size = 48M
query_cache_type = 1
query_prealloc_size = 262144
query_alloc_block_size = 65536
transaction_alloc_block_size = 8192
transaction_prealloc_size = 4096
default-storage-engine = MyISAM
max_user_connections = 500

nice = -5
open_files_limit = 8192

max_allowed_packet = 16M

key_buffer = 64M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M


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DNS Failover

Mar 26, 2009

I want to add a DNS Failover automated service at my server, in order that when it goes down, the DNS Failover enters in action and it will redirect all the traffic to a second backup/failover server (hosted at a different location).

So in order to do this i have been looking around and i have found dnsmadeeasy, and i found their offer interesting.

But i still have some question and doubts on how a dns failover service works. So maybe someone can expalin it to me.

My question and doubts:

1 - If i use for example the DNS failover from dnsmadeeasy, i would have to buy 2 servers where one is the principal server and the other is a backup/failover server, so when my main server goes down, the dnsmadeeasy will detect in a automatic way, and redirect all the traffic to my backp/failover server. After my principal server goes back online, dnsmadeeasy will automatic redirect all the traffic to the principal server.

Im i correct? Or i understound wrong how this works?

2 - I use my own Nameservers and i want to continue to use my own nameservers. So if i use dnsmadeeasy services, i will be able to continue to use my nameservers as ns1/ns2 and then i will add the dnsmadeeasy ns3/ the following example:


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Failover Or Not

Apr 4, 2009

I am planning to rent 2 managed dedicate servers with windows server 2008 and ms.sql 2008.
which I will use one for web application and 1 for database server.

why people usually divide them into web and database server? is it for security or performance reason?

Which one you prefer to choose?

- 1 server for web and 1 server for database.

- 1 server(web and database) and 1 server for failover

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Aug 4, 2007

In making my plans for my web hosting business I plan to start, I've thought about a failover but wanted to know the best way to set it up.

I would ideally like to start with something like getting a small shared hosting solution (not reseller, just shared) at a reliable hosting company. On this hosting plan, I will host a simple 1 page site that says my company is having technical difficulties, reminds people that data is safe, and provides any contact information accessable (like e-mail/phone/etc...).

I already have DNS setup offsite.

I would like that if my server(s) go down for any reason, whatsoever, that DNS automatically starts serving the temp site.

so if my server suddenly goes down, [url]or [url]suddenly goes to the offsite shared hosting plan.

This would not provide customer site redundancy. This would only ensure that if anything happens to my service, customers have a page available that explains what is happening and has information to contact us to get more details.

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MySQL Error

Jul 21, 2007

I have this error my site:

dbconn: mysql_connect: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

*dbconn: mysql_connect: Can't create a new thread (errno 12); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug*

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MySql Error

Mar 3, 2007

I recived this error message while testing my website registartions form and was wondering what to do with this and i think it should be permission to access to the database is not given to the user but this is my own account and im the admin and how come the access is denied?

Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'alien'@'localhost' (using password: YES) in /home/seektran/public_html/db_connect.php on line 12
Error: Could not connect to database server. Please try again later.Access denied for user 'alien'@'localhost' (using password: YES)

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PIX Failover, Serial Or LAN?

Jul 11, 2008

We have 2 Cisco PIX 515's in a failover configuration (7.1 series IOS). We have available both a serial failover cable and adequate switch capacity to allow using either the serial or LAN-based approach. We have no current plans to locate the firewalls physically apart.

We have plenty of info on how to configure either, but no recommendation on which is the better choice.

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Web Hosting Failover

Feb 21, 2009

I have a reseller account with a company that often has spontaneous DNS errors, and this, as you know looses us money. I also have a dedicated server running a panel exclusively via IIS. Is there a way I can set up my dedicated (Windows) box and my reseller account in a mirror way, so if one of them fails, the other will take over.

There are no file changes often, more database then anything. Is this possible?
Main necessities are:

-Mail Servers

-MySQL Servers


-Cron jobs

(Or, if a shared hosting company can accommodate this somehow and is relatively inexpensive.

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Failover Server

Jul 17, 2008

I host my own server but need to get a failover server in the case it goes down. Does anyone know of any companies that host failover servers that will run off my own server?

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DNS Failover/Redundancy

May 1, 2008

Basically have 2 hosting accounts at different providers...each set-up for the same domain name...and then somehow wtih DNS make it so if host #1 goes down traffic goes to host #2 (which would basically be a splash screen explaining that host #1 is down and will be back soon).

DNS isn't my strong point, but I do know you can do this with MX if the first server fails it tries the next until it gets a working one or reaches the end of the list. I'd just like to do it is A records.

It wouldn't be as simple as setting the nameservers like this would it?

Would it use the host1 nameservers as long as they're online, and if not failover to the host2 nameservers? If so, great, but what if the host1 nameservers are online but the server itself is not.

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DNS Failover Service

Dec 10, 2007

Assume, a DNS failover service would change the DNS from server 1 to server 2 when the first one is offline. This will be changed quite fast, however isn't it true that some visitors still experience a downtime of a couple of hours (saying that the main server will be offline for 6 hours) as their ISP might not update DNS that frequently?

So basically, what is the added value of a failover service?

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Secondary DNS Failover

Jul 22, 2008

What happens if your primary nameserver goes down? Meaning that it goes completely off the net, not even denying dns requests but completely ignoring them.

I'd guess that resolvers would query the secondary NS after a specified timeout, but what is that timeout set to? Does it differ from ISP to ISP? How much of a slowdown are we looking at for end users?

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Failover Server

Oct 26, 2007

I'd like to create a failover server, a complete and identical copy (as much as possible) of my primary server, which becomes "primary" when the first server dies.

I've been reading a lot about this subject and i've seen an already working method which uses rsync and MySQL replication.

Has anyone managed to create such a system? is there someone with experience or can point me to a relevant web site?

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Impementing Failover

Jul 8, 2007

I was wondering what sort of systems have you guys implemented for ensuring your website remains online.

Iv attached a pic of what I think are the best options.

What do you think?

Also, am I correct in my assumptions about DNS?

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Connecting To VPS

Oct 28, 2009

I've now VPS with CentOS and on Hypervm.

Can I connect to it using VPN or other client application as Desktop? or only Shell?
and if I want to setup on it ftp client like FileZella to get my files from the previous host directly what should I do?

I know the wget command but I think it for a single file and of course can't get php files so I think in ftp client application.

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Mysql 'max_allowed_packet' Error

Jul 1, 2009

in phpMyadmin when trying to import a database from a file, i'm getting the error:

#1153 - Got a packet bigger than 'max_allowed_packet' bytes

The file I'm importing is only 7.08MB

I have tried setting the packet size in the shell as follows:

mysql> mysqld --max_allowed_packet=32M

I got no error or no confirmation either using this command, sorry I dont use shell commands much so I dont know if thats a problem or if it worked.

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Error When Restore Mysql

Jul 8, 2009

I have a new customer moving from another host. His account was terminated already, so just have backup file. When restoring his mysql database, I have this error


Unable to restore database dbname.sql to agesuke_forum : ERROR at line 521 in file: '/backup/dbname.sql': Unknown command ''.

Googling shows error in version < 5.0.6 but we are using 5.1.35 already. Is there any idea to fix? This account will run on CentOS 5 - 64bits, FYI.

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