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Serious IO problems in 70.7 kernel [message #41009] Wed, 03 November 2010 22:09
seanfulton is currently offline  seanfulton
Messages: 104
Registered: May 2007
Senior Member
From: *dyn.optonline.net
I've identified some SERIOUS I/O issues in the 70.7 Rhel5 kernel. If I run a moderately-loaded VE on the server, and cat a large SQL file into MySQL to create a new database in another VE, the first VE essentially blocks all disk I/O.

I had this problem before while running my nightly backups but it never got resolved. However I think this is much more serious as it means one VE can bring down another. I happened to be able to run a test between this kernel and the same machine/ve combination running the 68.5 kernel and 68.5 doesn't exhibit this problem. However, 68.5 has other problems.

Any recommendations for a kernel that doesn't have I/O problems? Anyone using the testing kernels in a production environment? Anyone else having this problem?


sean
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