Does Mysqldump cause downtime?

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But when dealing with a medium to large database that is live, running mysqldump with default options can cause service unavailability issues for the application users, causing a temporary downtime. This is because mysqldump locks the tables during a backup process also known as export process. 31 июл. 2017 г.

Does Mysqldump affect performance?

The mysqldump process, however, is just querying the database, and the queries themselves runs on the mysql server with the usual priority and cause (almost) the same impact on the server. mysqldump is not the bottleneck.

How long should Mysqldump take?

Although a mysqldump may take 30 minutes to complete, your restore of that data might take 8 hours or more. That's due in part to rebuilding all those indexes.

Is Mysqldump a hot backup?

mysqldump is also an option - note that mysqldump is not a hot backup tool by default (especially if your tables are using multiple storage engines or the tables are being locked during the backup), but if your tables are only using the InnoDB storage engine and you use the --single-transaction option when using ...

Should I stop MySQL before Mysqldump?

No, ytou don't have to take down the web site to do a MySQL backup. You not only can use mysqldump on a running MySQL database but in fact the server must be running for mysqldump to be able to connect to it.

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