XF 1.5 Deadlock found when trying to get lock

[Nirjonadda]

How to fixing Deadlock found when trying to get lock?

Error Info
Zend_Db_Statement_Mysqli_Exception: Mysqli statement execute error : Deadlock found when trying to get lock; try restarting transaction - library/Zend/Db/Statement/Mysqli.php:214
Generated By: Unknown Account, 32 minutes ago
Stack Trace

#0 /home/nadda/public_html/library/Zend/Db/Statement.php(297): Zend_Db_Statement_Mysqli->_execute(Array)
#1 /home/nadda/public_html/library/Zend/Db/Adapter/Abstract.php(479): Zend_Db_Statement->execute(Array)
#2 /home/nadda/public_html/library/XenForo/Model/ImageProxy.php(791): Zend_Db_Adapter_Abstract->query('\n\t\t\tINSERT INTO...', Array)
#3 /home/nadda/public_html/library/XenForo/ProxyOutput.php(269): XenForo_Model_ImageProxy->logImageReferrer(275887, 'https://www.nir...')
#4 /home/nadda/public_html/library/XenForo/ProxyOutput.php(193): XenForo_ProxyOutput->_outputImage(false)
#5 /home/nadda/public_html/library/XenForo/ProxyOutput.php(426): XenForo_ProxyOutput->output()
#6 /home/nadda/public_html/proxy.php(12): XenForo_ProxyOutput::run()
#7 {main}

Request State

array(3) {
  ["url"] => string(146) "/proxy.php?image=http%3A%2F%2Fimg66.imagetwist.com%2Fth%2F15051%2Fht4r9lriyxqf.jpg&hash=ede395acf85b4cd0ffc8ffc443b69455"
  ["_GET"] => array(2) {
    ["image"] => string(53) "http://img66.imagetwist.com/th/15051/12.jpg"
    ["hash"] => string(32) "ede395acf85b4cd0ffc8ffc443b69455"
  }
  ["_POST"] => array(0) {
  }
}

 

[Nirjonadda]

How to fixing this error?

Mysqli statement execute error : Deadlock found when trying to get lock; try restarting transaction

 

[Mike]

If it's infrequent, it can be disregarded.

 

[Nirjonadda]

If it's infrequent, it can be disregarded.

But its happen lot of time with /proxy.php, When happen Mysqli statement execute error : Deadlock found when trying to get lock then page loading take lot of time. why the deadlock error came up, I’m afraid it happens within internal functions of xF script?