From 63c669ccbf3e58bc8afddc05578e0f7391e4ac99 Mon Sep 17 00:00:00 2001 From: Naum Soloveychik Date: Sat, 11 Jan 2020 00:06:00 +0300 Subject: [PATCH] Update README.md --- README.md | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index c702880..d1b0653 100644 --- a/README.md +++ b/README.md @@ -22,7 +22,8 @@ number of copies to store (default 10) **-e, --email** email to send notifications **-l, --lock-all-tables** -lock all tables across all databases. This is achieved by acquiring a global read lock for the duration of the whole dump. This option automatically turns off `--single-transaction` and `--lock-tables`. +lock all tables across all databases. This is achieved by acquiring a global read lock for the duration of the whole dump. This option automatically turns off `--single-transaction` and `--lock-tables`. +WARNING!!! This will block all applications. **-s, --single-transaction** this option sets the transaction isolation mode to REPEATABLE READ and sends a START TRANSACTION SQL statement to the server before dumping data. It is useful only with transactional tables such as InnoDB, because then it dumps the consistent state of the database at the time when START TRANSACTION was issued without blocking any applications. **-z, --compress**