Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

FAQ: Restore deleted content #665

Merged
merged 1 commit into from
Oct 12, 2018
Merged

FAQ: Restore deleted content #665

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 10 additions & 0 deletions FAQ.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -696,6 +696,16 @@ Keep the size of the data file exported from `mydumper` as small as possible. It

You can edit the `t` parameter of `loader` based on the number of TiKV instances and load status. For example, in scenarios of three TiKV instances, you can set its value to `3 * (1 ～ n)`. When the TiKV load is very high and `backoffer.maxSleep 15000ms is exceeded` displays a lot in `loader` and TiDB logs, you can adjust the parameter to a smaller value. When the TiKV load is not very high, you can adjust the parameter to a larger value accordingly.

## Migrate the data and traffic

### Full data export and import

#### Mydumper
See [mydumper Instructions](tools/mydumper.md).

#### Loader
See [Loader Instructions](tools/loader.md).

#### How to migrate an application running on MySQL to TiDB?

Because TiDB supports most MySQL syntax, generally you can migrate your applications to TiDB without changing a single line of code in most cases. You can use [checker](https://github.com/pingcap/tidb-tools/tree/master/checker) to check whether the Schema in MySQL is compatible with TiDB.
Expand Down