+ // Upper bound on how long to keep lock structures around. This is useful when setting
+ // TTLs, as the "lockTTL" value may vary based on CLI mode and app server group. This is
+ // a "safe" value that can be used to avoid clobbering other locks that use high TTLs.
+ $this->lockTTL = min( $this->lockTTL, self::MAX_LOCK_TTL );
+