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Re: doubt about read uncommited


Hi Jean,

Read uncommited is definitly treated differently on TokuDB (no snapshot read). You have a description of the kind of lock taken on TokuDB depending on the isolation level here :


Le 25/11/2014 04:04, Jean Weisbuch a écrit :
Transaction level only has effect on transactional engines (and note that read uncommited is treated as read commited on TokuDB if i recall correctly) thus the variable has no effect on MyISAM and Aria.

Le 25/11/2014 03:48, Roberto Spadim a écrit :
hi guys, i use read uncommited sometimes with innodb, that's nice and work
but now, i'm using a myisam table, and a aria table....
does read uncommited work with this kind of engine? i tested and table stay 'waiting table lock' while a looooong update occurs i don't know what's the internal diference but is possible to "easily" implement read uncommited to myisam/aria?

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