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Xaчу секс по телефону дешевый с кaртйнками





Xaчу секс по телефону дешевый с кaртйнками

For most people including me until recently database XA transactions are a fuzzy concept. In over eight years with Percona, I have never had to deal with XA transactions. Then a few weeks ago I got two customers having issues with XA transactions.

Xaчу секс по телефону дешевый с кaртйнками

That deserves a post. What are XA transactions? XA transactions are useful when you need to coordinate a transaction between different systems. The simplest example could be simply two storage engines within MySQL. Basically, it follows this sequence:.

Xaчу секс по телефону дешевый с кaртйнками

The XA Xid is made of three fields: Java applications use all three fields. You can trust Java application servers to be creative with Xid values.

If you do nothing, the prepared transaction stays there forever xaчу секс по телефону дешевый с кaртйнками holds locks and a read view open.

As a consequence, the history list grows without bound along with your ibdata1 file, where the undo entries are kept. If you have slaves, they all have the prepared transaction too at least with 5. As a consequence, if you are using XA transactions, you MUST check if there are prepared transactions pending after the server or mysqld restarted.

Xaчу секс по телефону дешевый с кaртйнками

If you find such transactions, you need to xaчу секс по телефону дешевый с кaртйнками or roll them back, depending on what is involved. But how do you commit these XA transactions? The problem here is the output of xa recover.

As it is, the output is unusable if there is a bqual field or non-default formatID field:. With the use of these values, you can extract the parts of the data field which gives us:. You have to be a bit more creative:. But there is a limitation in 5.

Xaчу секс по телефону дешевый с кaртйнками

That means after a crash you are out of luck. To get rid of these you need to promote a slave or perform a logical dump and restore. The best plan is to avoid the use of XA transactions with 5. If you think this is important, vote for it!

Xaчу секс по телефону дешевый с кaртйнками

He holds a Ph. Percona Database Performance Blog. Starting recovery for XA transactions Transaction in prepared state after recovery T Transaction contains changes to 2 rows T Starting recovery for XA transactions. Transaction in prepared state after recovery.

Xaчу секс по телефону дешевый с кaртйнками

Transaction contains changes to 2 rows. Query OK0 rows affected 0. Bug is at https: Good article for someone that suffered with XA before, thanks for writing it, Yves! Leave a Reply Cancel reply.

Xaчу секс по телефону дешевый с кaртйнками

Transaction in prepared state after recovery - 08 - 23T Transaction contains changes to 2 rows - 08 - 23T



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