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Displaying posts with tag: runaway history list (reset)

Runaway history list
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On one of the clusters at Spil we noticed a sudden increase in the length of the history list and a steep increase in the ibdata file in the MySQL directory.
I did post a bit about this topic earlier regarding MySQL 5.5 but this cluster is still running 5.1 and unfortunately 5.1 does not have the same configurable options to influence the purging of the undo log…

Now I did find a couple of great resources that explain the purge lag problem into detail: Pythian,


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