GitHub's Online Schema-migration Tool for MySQL
421ab0fc83
- Introduced `SwapTablesTimeoutSeconds`; `RENAME` is limited by this timeout - If `RENAME` fails (due to the above), we throttle and retry - `SwapTablesAtomic()` sets `lock_wait_timeout` and notifies with connection id - `GrabVoluntaryLock()` intentionally grabs (and later releases) voluntary lock. It notifies when it is taken and awaits instructions as for when it could be released. - `IssueBlockingQueryOnVoluntaryLock()` does what it says. It notifies with its connection_id so that it can be easily traced - `stopWritesAndCompleteMigrationOnMasterViaLock()` does the thang. Oh dear this was agonizing and the code is a pain to look at, though under the limitations I do believe it is as clean as I could hope for. |
||
|---|---|---|
| go | ||
| vendor | ||
| build.sh | ||
| LICENSE | ||
| README.md | ||
gh-osc
GitHub's Online Schema Change for MySQL