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The e-commerce.

Paypal Msql "copying To Tmp" Query Bringing Down Whole Machine


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For a while now we have been having this problem and I could really use some help figuring out what the cause is. Seemingly at random, the following query will cause MYSQL to simply stop functioning and backs up so many threads that it consumes all available memory and CPU usage on my VPS and drags the whole thing to a stop.


"select o.orders_status,p.* from orders o LEFT JOIN paypalipn_txn p on p.item_number = o.orders_id AN"


This creates a "copying to tmp table" process in SQL that freezes and everything is toast.

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  • 1 year later...

I think we're having exactly the same problem. :angry:


Our site was very unstable today so I contacted our hosting company. They informed me about this paypalipn_txn query and said that our site is using 200% of the CPU.


I've no clue about the whole thing. Anyone has any idea?



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