Hi everyone,
I've set up my own mining pool using the installer at
https://github.com/cryptopool-builders/Multi-Pool-Installer. It seems to be working fine for the most part but I'm seeing the 'CDbConnection failed to open the DB connection.' error in my debug.log file. Here's what the log entries look like in full:
[2022-02-17 13:26:14] CDbException#1
(
[*:message] => 'CDbConnection failed to open the DB connection.'
[Exception:string] => ''
[*:code] => 0
[*:file] => '/home/crypto-data/yiimp/site/web/framework/db/CDbConnection.php'
[*:line] => 405
[Exception:trace] => array
(
0 => array
(
'file' => '/home/crypto-data/yiimp/site/web/framework/db/CDbConnection.php'
'line' => 347
'function' => 'open'
'class' => 'CDbConnection'
'type' => '->'
)
1 => array
(
'file' => '/home/crypto-data/yiimp/site/web/framework/db/CDbConnection.php'
'line' => 325
'function' => 'setActive'
'class' => 'CDbConnection'
'type' => '->'
)
2 => array
(
'file' => '/home/crypto-data/yiimp/site/web/framework/base/CModule.php'
'line' => 394
'function' => 'init'
'class' => 'CDbConnection'
'type' => '->'
)
3 => array
(
'file' => '/home/crypto-data/yiimp/site/web/framework/base/CModule.php'
'line' => 103
'function' => 'getComponent'
'class' => 'CModule'
'type' => '->'
)
4 => array
(
'file' => '/home/crypto-data/yiimp/site/web/yaamp/core/common/libdbo.php'
'line' => 38
'function' => '__get'
'class' => 'CModule'
'type' => '->'
)
5 => array
(
'file' => '/home/crypto-data/yiimp/site/web/yaamp/modules/thread/CronjobController.php'
'line' => 51
'function' => 'dborun'
)
6 => array
(
'file' => '/home/crypto-data/yiimp/site/web/framework/web/actions/CInlineAction.php'
'line' => 49
'function' => 'actionRunBlocks'
'class' => 'CronjobController'
'type' => '->'
)
7 => array
(
'file' => '/home/crypto-data/yiimp/site/web/framework/web/CController.php'
'line' => 308
'function' => 'runWithParams'
'class' => 'CInlineAction'
'type' => '->'
)
8 => array
(
'file' => '/home/crypto-data/yiimp/site/web/framework/web/CController.php'
'line' => 286
'function' => 'runAction'
'class' => 'CController'
'type' => '->'
)
9 => array
(
'file' => '/home/crypto-data/yiimp/site/web/framework/web/CController.php'
'line' => 265
'function' => 'runActionWithFilters'
'class' => 'CController'
'type' => '->'
)
10 => array
(
'file' => '/home/crypto-data/yiimp/site/web/yaamp/components/CYiimpConsoleApp.php'
'line' => 125
'function' => 'run'
'class' => 'CController'
'type' => '->'
)
11 => array
(
'file' => '/home/crypto-data/yiimp/site/web/runconsole.php'
'line' => 20
'function' => 'runController'
'class' => 'CYiimpConsoleApp'
'type' => '->'
)
)
[Exception:previous] => null
[errorInfo] => null
)
I'm not seeing any MySQL errors in the mysql.log file, nginx logs don't seem to show anything either, same with client.log and reject.log. application.log in /home/crypto-data/yiimp/site/web/yaamp/runtime only has this:
2022/02/18 11:24:43 [error] [php] memcache_connect(): Server 127.0.0.1 (tcp 11211, udp 0) failed with: Connection failed: Connection refused (111) (/home/crypto-data/yiimp/site/web/yaamp/core/functions/memcache.php:10)
Stack trace:
#0 /home/crypto-data/yiimp/site/web/framework/base/CApplication.php(170): CYiimpConsoleApp->init()
#1 /home/crypto-data/yiimp/site/web/framework/YiiBase.php(127): CYiimpConsoleApp->__construct()
#2 /home/crypto-data/yiimp/site/web/runconsole.php(14): createApplication()
but this is from hours ago and my problem still persists.
The coin log in stratum/config only has this:
12:44:11: connecting to coind TLC
12:44:11: Techcoin wallet is using getaddressinfo.
12:44:11: Warning: unable to decode TLC tc1qhnfad09vg78a4whxjjdydqy00gjx64wqsrc8um script pubkey
12:44:11: TLC tc1qhnfad09vg78a4whxjjdydqy00gjx64wqsrc8um extracted script pubkey is d3d6bcac478fdabae6949a46808f7a246d
syslog doesn't show any MySQL errors either. MySQL/MariaDB seem to be running okay and I can connect to the database manually.
What other log files should I check? What could be the problem, if the database connection seems okay?
Thanks in advance!
