Merge "Allow stop characters as quoted attribute delimiters"

[lhc/web/wiklou.git] / includes / db / DatabaseMysql.php

diff --git a/includes/db/DatabaseMysql.php b/includes/db/DatabaseMysql.php
index b69efac..5b15147 100644 (file)
--- a/includes/db/DatabaseMysql.php
+++ b/includes/db/DatabaseMysql.php
@@ -74,6 +74,9 @@ class DatabaseMysql extends DatabaseMysqlBase {
 
                $conn = false;
 
+               # The kernel's default SYN retransmission period is far too slow for us,
+               # so we use a short timeout plus a manual retry. Retrying means that a small
+               # but finite rate of SYN packet loss won't cause user-visible errors.
                for ( $i = 0; $i < $numAttempts && !$conn; $i++ ) {
                        if ( $i > 1 ) {
                                usleep( 1000 );