Sql_log_bin privilege


Almost 2 years ago, during MySQL 5. So, let me describe just how stupid and dangerous it really is. This sql_log_bin privilege must be complete for replication to be useful and trustworthy. If it is incomplete, sql_log_bin privilege data loss may occur. This can be quite useful to be able to run e. Do the right thing, and revert this change. We even provided a patch. Go and make your opinion known! While the GLOBAL option does still exist, I much prefer the option to simply mark events to be skipped by slaves which are configured to skip events.

Quite useful for archive servers which can then be set to ignore purge events. And as percona pointed out recently, even more beneficial for Galera Cluster: Thanks Jeremy for bringing this to our attention. I think reverting will be hard and I kind of like the feature sql_log_bin privilege being able to enable binary logging without restarting MySQL. Maybe reducing the numbers of those would be suited. This mode would work as follow: I am not sure about the need for a super-super mode — then you could argue that a super-super-super mode is sql_log_bin privilege useful for the really truly dangerous stuff… it may never end.

For binary logging, ideally it would be sql_log_bin privilege global-only feature that disables binary logging or enables it for all threads simultaneously and safely. Hello, thank you for the attention. If you have problems for the translation, please let me know and I can delete it or do something you want on the translation.

You are commenting using your WordPress. You are commenting using sql_log_bin privilege Twitter account. You are commenting using your Facebook account. Notify me of new comments via email. Notify me of new posts via email. As background, there are essentially three different scopes of variables in MySQL server: The variable only exists, and only sql_log_bin privilege sense, in a global scope.

The global variable defines the session default, and is copied to the session variable on connect. A user may change the variable within their session if they want, and there may be restrictions on doing so. If the global variable is changed, it will only affect new sessions; existing sessions will keep the variable they copied at session start. There is sql_log_bin privilege global variable associated with the session sql_log_bin privilege.

A user may change the variable only within their session. There are a few implications of this: This makes it pretty sql_log_bin privilege for managing a failover. This also makes it pretty useless for managing a failover.

Is anyone putting it to good use? None of sql_log_bin privilege servers will complain. Your move, Oracle Do the right thing, and revert this change. Visualizing the impact of ordered vs. We may have a need for that feature, and may end up developing sql_log_bin privilege in a safe way. What do you think? Cancel reply Enter your comment here Fill in your details below or click an icon to log in: Email required Address never made public.

SET syntax for variable assignment enables sql_log_bin privilege to assign values to different types of variables that affect the operation of the server or clients:. Stored procedure and function parameters, and stored program local variables. A SET statement that assigns variable values is not written to the binary log, so in replication scenarios it affects only the host on which you execute it.

To affect all replication hosts, execute the statement on each one. The following examples illustrate SET syntax for setting variables. The expr can range from simple a literal value to more complex the value sql_log_bin privilege by a scalar subquery.

SET applies to parameters and local sql_log_bin privilege in the context of the stored object within which they are defined. The following procedure uses the counter local variable as a loop counter:. Many sql_log_bin privilege variables are dynamic and can be changed at runtime by using the SET statement.

To change a system variable with Sql_log_bin privilegerefer to it sql_log_bin privilege name, optionally preceded by a modifier:. A client can change its own session variables, but not those of any other client. If no modifier sql_log_bin privilege present, SET sql_log_bin privilege the session variable. The preceding modifiers apply only to system variables. An error occurs for attempts to apply them to user-defined variables, stored procedure or function parameters, or stored program local variables.

A SET statement can contain multiple variable assignments, separated by commas. Sql_log_bin privilege statement assigns values to a user-defined variable and a system variable:. If any variable assignment in a SET statement fails, the entire statement fails and no variables are changed. If you change a session system variable, the value remains in effect within your session until you change the variable to a different value or the session ends.

The change has no effect on other sessions. If you change a global system variable, the value is remembered and used for new sessions until you change the variable to a different value or the server exits. The change is visible to any client that accesses the global variable. However, the change affects the corresponding session variable only for clients that connect after the change. To make a global system variable setting permanent so that it applies across server restarts, you should also set it in an option file.

Sql_log_bin privilege error occurs for attempts to assign DEFAULT to user-defined variables, stored procedure or function parameters, or stored program local variables. To refer to the value of a system variable in expressions, use one of the -modifiers.

An error occurs under these circumstances:

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