public void setSnapshotThrottle(final SnapshotThrottle snapshotThrottle) {
        this.snapshotThrottle = snapshotThrottle;
    }
Apply task in blocking or non-blocking mode, ApplyTaskMode.NonBlocking by default.
jraft-core/src/main/java/com/alipay/sofa/jraft/option/NodeOptions.java