Re: drupal.org MySQL database issues
От | Lukas Kahwe Smith |
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Тема | Re: drupal.org MySQL database issues |
Дата | |
Msg-id | 464AD39E.2040402@pooteeweet.org обсуждение исходный текст |
Ответ на | drupal.org MySQL database issues (John DeSoi <desoi@pgedit.com>) |
Ответы |
Re: drupal.org MySQL database issues
|
Список | pgsql-advocacy |
John DeSoi wrote: > Maybe they could be convinced to use the "other" database supported by > Drupal :). > > > http://drupal.org/node/144228 > > What's the deal? > > The root of the problem that our database server is overloaded. This is > causing table locks: > > Table locking is also disadvantageous under the following scenario: > * A client issues a SELECT that takes a long time to run. > * Another client then issues an UPDATE on the same table. > This client waits until the SELECT is finished. > * Another client issues another SELECT statement on the same > table. Because UPDATE has higher priority than SELECT, this > SELECT waits for the UPDATE to finish, and for the first > SELECT to finish. Also by moving from MyISAM to InnoDB, they not only get row level locking, they also get MVCC .. regards, Lukas
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