From 03f3ba2dcb07a672f9c1d87489b9ec88af62a96f Mon Sep 17 00:00:00 2001
From: mkaruza <mkaruza@users.noreply.github.com>
Date: Tue, 18 Jun 2019 11:29:54 +0200
Subject: [PATCH] MDEV-18940 Galera: Rolling upgrade: all nodes except upgraded
 node5 failed with Assertion `meta->gtid.seqno == wsrep_thd_trx_seqno(thd)'
 with SEQUENCEs (#1342)

Empty write sets will not trigger apply callback, and will not
update thread wsrep_trx_meta.gtid.seqno. Because of that assert will
be triggered when commit callback is called.
---
 sql/wsrep_applier.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sql/wsrep_applier.cc b/sql/wsrep_applier.cc
index 9d39b36793f..0322c5f6a40 100644
--- a/sql/wsrep_applier.cc
+++ b/sql/wsrep_applier.cc
@@ -360,7 +360,7 @@ wsrep_cb_status_t wsrep_commit_cb(void*         const     ctx,
 {
   THD* const thd((THD*)ctx);
 
-  assert(meta->gtid.seqno == wsrep_thd_trx_seqno(thd));
+  assert(meta->gtid.seqno >= wsrep_thd_trx_seqno(thd));
 
   wsrep_cb_status_t rcode;