server: return the actual error when conn panic (#18494) (#18498)

Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
pingcap · Jul 13, 2020 · 2aade69 · 2aade69
1 parent 8062359
commit 2aade69
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/server/conn.go b/server/conn.go
@@ -652,6 +652,8 @@ func (cc *clientConn) Run(ctx context.Context) {
 				zap.Reflect("err", r),
 				zap.String("stack", string(buf)),
 			)
+			err := cc.writeError(errors.New(fmt.Sprintf("%v", r)))
+			terror.Log(err)
 			metrics.PanicCounter.WithLabelValues(metrics.LabelSession).Inc()
 		}
 		if atomic.LoadInt32(&cc.status) != connStatusShutdown {