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Process List > Sending Data


jaymc

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Im having some load issues at the moment, I notice 100 queries in the process list with the majority being in "SENDING DATA" state

 

The queries them selves arnt the problem. I have capture the query and run after the load issues and its fine, with no cache too

 

I believe sending data is the moment when mysql is passing the result back to the caller (PHP)

 

Is there a reason why sometimes I see 80 queries hanging around for 20+ seconds in SENDING DATA state

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