Donor node fails to shutdown after mysqldump SST

/test/mtest/GAL_MD150321-mariadb-10.6.0-linux-x86_64-opt/scripts/mariadb-install-db --no-defaults --force --auth-root-authentication-method=normal --basedir=/test/mtest/GAL_MD150321-mariadb-10.6.0-linux-x86_64-opt --datadir=/test/mtest/node1

/test/mtest/GAL_MD150321-mariadb-10.6.0-linux-x86_64-opt/scripts/mariadb-install-db --no-defaults --force --auth-root-authentication-method=normal --basedir=/test/mtest/GAL_MD150321-mariadb-10.6.0-linux-x86_64-opt --datadir=/test/mtest/node2

/test/mtest/GAL_MD150321-mariadb-10.6.0-linux-x86_64-opt/bin/mysqld --defaults-file=/test/mtest/n1.cnf --wsrep-new-cluster &

/test/mtest/GAL_MD150321-mariadb-10.6.0-linux-x86_64-opt/bin/mysql -uroot -S/test/mtest/node1/node1_socket.sock -e 'create database if not exists test'

sysbench /usr/share/sysbench/oltp_insert.lua --table-size=1000 --tables=10 --mysql-db=test --mysql-user=root --threads=10 --db-driver=mysql --mysql-socket=/test/mtest/node1/node1_socket.sock prepare

/test/mtest/GAL_MD150321-mariadb-10.6.0-linux-x86_64-opt/bin/mysqld --defaults-file=/test/mtest/n2.cnf &

/test/mtest/GAL_MD150321-mariadb-10.6.0-linux-x86_64-opt/bin/mysqladmin -uroot -S/test/mtest/node2/node2_socket.sock shutdown

# Donor node fails to stop

/test/mtest/GAL_MD150321-mariadb-10.6.0-linux-x86_64-opt/bin/mysqladmin -uroot -S/test/mtest/node1/node1_socket.sock shutdown

[mysqld]

wsrep_cluster_address=gcomm://127.0.0.1:4951,127.0.0.1:3898,

wsrep_provider_options="gmcast.listen_addr=tcp://127.0.0.1:4951;"

tmpdir=/test/mtest/tmp1

socket=/test/mtest/node1/node1_socket.sock

datadir=/test/mtest/node1

port=7402

log-error=/test/mtest/logs/node1.err

wsrep_node_address=127.0.0.1

wsrep_node_incoming_address=127.0.0.1

server-id=101

basedir=/test/mtest/GAL_MD150321-mariadb-10.6.0-linux-x86_64-opt

wsrep-debug=1

innodb_file_per_table

innodb_autoinc_lock_mode=2

wsrep-provider=/test/mtest/GAL_MD150321-mariadb-10.6.0-linux-x86_64-opt/lib/libgalera_smm.so

wsrep_sst_auth=root:

wsrep_sst_method=mysqldump

binlog_format=ROW

log-output=none

wsrep_on=1

wsrep_slave_threads=2

2021-04-14 21:18:05 2 [Warning] Aborted connection 2 to db: 'unconnected' user: 'unauthenticated' host: '' (This connection closed normally without authentication)

2021-04-14 21:18:05 2 [Note] WSREP: wsrep running threads now: 1

2021-04-14 21:18:05 3 [Note] WSREP: Applier thread exiting ret: 6 thd: 3

2021-04-14 21:18:05 3 [Note] WSREP: closing applier 3

2021-04-14 21:18:05 3 [Note] WSREP: wsrep system thread: 3, 0x1468f8000c58 closing

2021-04-14 21:18:05 3 [Warning] Aborted connection 3 to db: 'unconnected' user: 'unauthenticated' host: '' (This connection closed normally without authentication)

2021-04-14 21:18:05 3 [Note] WSREP: wsrep running threads now: 0

2021-04-14 21:18:05 0 [Note] Event Scheduler: Purging the queue. 0 events

2021-04-14 21:18:07 0 [Note] WSREP: Donor waited 30 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:18:25 0 [Note] WSREP: wsrep_deinit

2021-04-14 21:18:25 0 [Note] WSREP: dtor state: CLOSED

2021-04-14 21:18:25 0 [Note] WSREP: MemPool(TrxHandleSlave): hit ratio: 0.0967742, misses: 28, in use: 13, in pool: 15

2021-04-14 21:18:25 0 [Note] WSREP: mon: entered 31 oooe fraction 0 oool fraction 0

2021-04-14 21:18:25 0 [Note] WSREP: mon: entered 31 oooe fraction 0.322581 oool fraction 0.0322581

2021-04-14 21:18:25 0 [Note] WSREP: mon: entered 41 oooe fraction 0 oool fraction 0

2021-04-14 21:18:25 0 [Note] WSREP: cert index usage at exit 3011

2021-04-14 21:18:25 0 [Note] WSREP: cert trx map usage at exit 13

2021-04-14 21:18:25 0 [Note] WSREP: deps set usage at exit 0

2021-04-14 21:18:25 0 [Note] WSREP: avg deps dist 4.19355

2021-04-14 21:18:25 0 [Note] WSREP: avg cert interval 5.12903

2021-04-14 21:18:25 0 [Note] WSREP: cert index size 3011

2021-04-14 21:18:25 0 [Note] WSREP: Service thread queue flushed.

2021-04-14 21:18:25 0 [Note] WSREP: wsdb trx map usage 0 conn query map usage 0

2021-04-14 21:18:25 0 [Note] WSREP: MemPool(LocalTrxHandle): hit ratio: 0.677419, misses: 10, in use: 0, in pool: 10

2021-04-14 21:18:25 0 [Note] WSREP: Flushing memory map to disk...

2021-04-14 21:18:37 0 [Note] WSREP: Donor waited 60 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:19:07 0 [Note] WSREP: Donor waited 90 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:19:37 0 [Note] WSREP: Donor waited 120 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:20:07 0 [Note] WSREP: Donor waited 150 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:20:37 0 [Note] WSREP: Donor waited 180 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:21:07 0 [Note] WSREP: Donor waited 210 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:21:37 0 [Note] WSREP: Donor waited 240 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:22:07 0 [Note] WSREP: Donor waited 270 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:22:37 0 [Note] WSREP: Donor waited 300 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:23:07 0 [Note] WSREP: Donor waited 330 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:23:37 0 [Note] WSREP: Donor waited 360 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:24:07 0 [Note] WSREP: Donor waited 390 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:24:37 0 [Note] WSREP: Donor waited 420 sec, extending systemd startup timeout as SSTis not completed

2021-04-14 21:25:07 0 [Note] WSREP: Donor waited 450 sec, extending systemd startup timeout as SSTis not completed