On Thu, Jul 30, 2009 at 1:03 AM, Jay Pipes <[email protected]> wrote:
> Biping MENG wrote: > >> Unsolved problems: >> Actually I ran the "readwrite" series of sysbenches as well. But >> encountered errors at concurrency level of 2048. So the result is not >> complete for "readwrite". >> > > > Don't run readwrites on InnoDB with concurrency levels greater than 1024. > There is a hard limit of 1024 transactions in the concurrent lock graph > currently and deadlocks and undefined behaviour are known to occur when > concurrency exceeds 1024. This is a known issue that Oracle (or maybe > Percona?) has developed a beta solution for and hopefully will find its way > into the next plugin version, at which point Drizzle will of course pull in > the improvements. ah, I guess it is the famous InnoDB 1024 bug? Thanks for your explanation about it! I'm just making up this part of readwrite test. And will be posting it to this thread right after I got results:) > > > Cheers! > > jay > -- Cheers. Biping MENG
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