1 files changed, 12 insertions, 3 deletions
diff --git a/mysql-test/suite/galera_3nodes/t/galera_ipv6_mariabackup.test b/mysql-test/suite/galera_3nodes/t/galera_ipv6_mariabackup.test
index 808dad0dbb2..7f73e36c0b8 100644
--- a/mysql-test/suite/galera_3nodes/t/galera_ipv6_mariabackup.test
+++ b/mysql-test/suite/galera_3nodes/t/galera_ipv6_mariabackup.test
@@ -39,22 +39,31 @@ DROP TABLE t1;
 --let $assert_file = $MYSQLTEST_VARDIR/log/mysqld.1.err
 --let $assert_only_after = CURRENT_TEST
 
+# The SSTs happen when nodes are started first time
 --let $assert_count = 2
 --let $assert_text = Streaming the backup to joiner at \[::1\]
 --let $assert_select = Streaming the backup to joiner at \[::1\]
 --source include/assert_grep.inc
 
---let $assert_count = 1
+# There will be 3 ISTs donated from node_1 in Galera 4.
+# Two first happen at the initial startup to populate the certification
+# index. The third one is from the IST which happens during the actual test.
+--let $assert_count = 3
 --let $assert_text = async IST sender starting to serve tcp://\[::1\]:
 --let $assert_select = async IST sender starting to serve tcp://\[::1\]:
 --source include/assert_grep.inc
 
 --let $assert_file = $MYSQLTEST_VARDIR/log/mysqld.2.err
 
+# There are two ISTs on joiner, the first at the initial startup, the second
+# during the actual test.
+--let $assert_count = 2
 --let $assert_text = IST receiver addr using tcp://\[::1\]
 --let $assert_select = IST receiver addr using tcp://\[::1\]
 --source include/assert_grep.inc
 
---let $assert_text = Prepared IST receiver, listening at: tcp://\[::1\]
---let $assert_select = Prepared IST receiver, listening at: tcp://\[::1\]
+# The receiver expects seqnos 3-6 only once.
+--let $assert_count = 1
+--let $assert_text = Prepared IST receiver for 3-6, listening at: tcp://\[::1\]
+--let $assert_select = Prepared IST receiver for 3-6, listening at: tcp://\[::1\]
 --source include/assert_grep.inc