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By: Harrison Fisk

When we ported this patch to our branch, we fixed this hang as well: https://code.launchpad.net/~percona-dev/percona-server/fb_changes_auto_lru_dump/+merge/46012

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By: Mark Leith

Both implementations can block buffer pool operations for certain periods of time. Looking at the fix for the above mentioned bug by Laurynas...

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By: Xaprb

Yes. In case of a server crash, if the LRU dump is on a DRBD or SAN along with the data, then a cold standby can be brought up quickly. This was one of the major use cases for the feature originally....

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By: Laurynas

Mark - Yes, our implementation holds the mutex for every 4096KB of dump, which amounts to scanning half of million pages on the LRU list and 8GB of buffer pool dumped. We may adjust this amount up or...

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By: George O. Lorch III

There was in fact a slight error in our Percona Server 5.1 implementation when an I/O error occurred during write. This has been corrected and should appear in our next 5.1 release. In our Percona...

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