Galera node crashes sporadically when running OLTP multi master load.

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadb-admin --user=root --socket=/home/ramesh/framework/node3/mysql.sock shutdown

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadb-admin --user=root --socket=/home/ramesh/framework/node2/mysql.sock shutdown

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadb-admin --user=root --socket=/home/ramesh/framework/node1/mysql.sock shutdown

rm -rf /home/ramesh/framework/node*

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/scripts/mariadb-install-db --no-defaults --force  --auth-root-authentication-method=normal  --basedir=/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg --datadir=/home/ramesh/framework/node1 > /home/ramesh/framework/log/startup1.log 2>&1

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/scripts/mariadb-install-db --no-defaults --force  --auth-root-authentication-method=normal  --basedir=/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg --datadir=/home/ramesh/framework/node2 > /home/ramesh/framework/log/startup2.log 2>&1

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/scripts/mariadb-install-db --no-defaults --force  --auth-root-authentication-method=normal  --basedir=/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg --datadir=/home/ramesh/framework/node3 > /home/ramesh/framework/log/startup3.log 2>&1

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadbd --defaults-file=/home/ramesh/framework/conf/node1.cnf --wsrep-provider=/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/lib/libgalera_smm.so  --basedir=/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg --wsrep-new-cluster > /home/ramesh/framework/node1/node1.err 2>&1 &

sleep 10

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadb --user=root --socket=/home/ramesh/framework/node1/mysql.sock -Bse"SET SESSION sql_log_bin=0;delete from mysql.user where user='';" > /dev/null 2>&1

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadbd --defaults-file=/home/ramesh/framework/conf/node2.cnf --wsrep-provider=/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/lib/libgalera_smm.so  --basedir=/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg  > /home/ramesh/framework/node2/node2.err 2>&1 &

sleep 20

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadb --user=root --socket=/home/ramesh/framework/node2/mysql.sock -Bse"SET SESSION sql_log_bin=0;delete from mysql.user where user='';" > /dev/null 2>&1

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadbd --defaults-file=/home/ramesh/framework/conf/node3.cnf --wsrep-provider=/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/lib/libgalera_smm.so  --basedir=/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg   > /home/ramesh/framework/node3/node3.err 2>&1 &

sleep 20

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadb --user=root --socket=/home/ramesh/framework/node3/mysql.sock -Bse"SET SESSION sql_log_bin=0;delete from mysql.user where user='';" > /dev/null 2>&1

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadb --user=root --socket=/home/ramesh/framework/node1/mysql.sock -e"drop database if exists test; create database test;" > /dev/null 2>&1

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadb --user=root --socket=/home/ramesh/framework/node1/mysql.sock -e"create user if not exists sysbench@'localhost' identified  by 'sysbench';grant all on *.* to sysbench@'localhost';" > /dev/null 2>&1

sysbench /usr/share/sysbench/oltp_insert.lua --table-size=1000 --tables=10 --threads=10 --mysql-db=test  --mysql-user=sysbench --mysql-password=sysbench --db-driver=mysql  --mysql-socket=/home/ramesh/framework/node1/mysql.sock prepare >/home/ramesh/framework/log/sysbench_prepare.log

sysbench /usr/share/sysbench/oltp_read_write.lua --table-size=1000 --tables=10 --threads=10 --mysql-db=test  --mysql-user=sysbench --mysql-password=sysbench --db-driver=mysql  --mysql-socket=/home/ramesh/framework/node1/mysql.sock --time=1000 --db-ps-mode=disable run > /home/ramesh/framework/log/sysbench_read_write_10.log & 

sysbench /usr/share/sysbench/oltp_read_write.lua --table-size=1000 --tables=10 --threads=10 --mysql-db=test  --mysql-user=sysbench --mysql-password=sysbench --db-driver=mysql  --mysql-socket=/home/ramesh/framework/node2/mysql.sock --time=1000 --db-ps-mode=disable run > /home/ramesh/framework/log/sysbench_read_write_10.log & 

sysbench /usr/share/sysbench/oltp_read_write.lua --table-size=1000 --tables=10 --threads=10 --mysql-db=test  --mysql-user=sysbench --mysql-password=sysbench --db-driver=mysql  --mysql-socket=/home/ramesh/framework/node3/mysql.sock --time=1000 --db-ps-mode=disable run > /home/ramesh/framework/log/sysbench_read_write_10.log & 

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadb-admin --user=root --socket=/home/ramesh/framework/node3/mysql.sock shutdown

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadb --user=root --socket=/home/ramesh/framework/node1/mysql.sock -e"drop database if exists test_one; create database test_one;" > /dev/null 2>&1

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadb --user=root --socket=/home/ramesh/framework/node1/mysql.sock -e"drop database if exists test_two; create database test_two;" > /dev/null 2>&1

/home/ramesh/framework/GAL_MD040924-mariadb-10.11.10-linux-x86_64-dbg/bin/mariadb --user=root --socket=/home/ramesh/framework/node1/mysql.sock -e"drop database if exists test_three; create database test_three;" > /dev/null 2>&1

sysbench /usr/share/sysbench/oltp_insert.lua --table-size=1000 --tables=10 --threads=10 --mysql-db=test_one  --mysql-user=sysbench --mysql-password=sysbench --db-driver=mysql  --mysql-socket=/home/ramesh/framework/node1/mysql.sock prepare >/home/ramesh/framework/log/sysbench_prepare_test_one.log

sysbench /usr/share/sysbench/oltp_insert.lua --table-size=1000 --tables=10 --threads=10 --mysql-db=test_two  --mysql-user=sysbench --mysql-password=sysbench --db-driver=mysql  --mysql-socket=/home/ramesh/framework/node1/mysql.sock prepare >/home/ramesh/framework/log/sysbench_prepare_test_two.log

sysbench /usr/share/sysbench/oltp_insert.lua --table-size=1000 --tables=10 --threads=10 --mysql-db=test_three  --mysql-user=sysbench --mysql-password=sysbench --db-driver=mysql  --mysql-socket=/home/ramesh/framework/node1/mysql.sock prepare >/home/ramesh/framework/log/sysbench_prepare_test_three.log

(gdb) bt

#0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ../sysdeps/unix/sysv/linux/pthread_kill.c:56

#1  0x000055709a99c104 in my_write_core (sig=sig@entry=6) at /test/10.11_dbg/mysys/stacktrace.c:424

#2  0x000055709a256763 in handle_fatal_signal (sig=6) at /test/10.11_dbg/sql/signal_handler.cc:366

#3  <signal handler called>

#4  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50

#5  0x000014b11937a859 in __GI_abort () at abort.c:79

#6  0x000014b11937a729 in __assert_fail_base (fmt=0x14b119510588 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x55709ad7c74a "0", 

    file=0x55709ae1bab0 "/test/10.11_dbg/storage/innobase/row/row0purge.cc", line=832, function=<optimized out>) at assert.c:92

#7  0x000014b11938bfd6 in __GI___assert_fail (assertion=assertion@entry=0x55709ad7c74a "0", file=file@entry=0x55709ae1bab0 "/test/10.11_dbg/storage/innobase/row/row0purge.cc", line=line@entry=832, 

    function=function@entry=0x55709ae1c118 "bool row_purge_remove_sec_if_poss_tree(purge_node_t*, dict_index_t*, const dtuple_t*, trx_id_t)") at assert.c:101

#8  0x000055709a71973d in row_purge_remove_sec_if_poss_tree (node=node@entry=0x55709d9cb300, index=index@entry=0x14b0781eda80, entry=entry@entry=0x14b028008960, page_max_trx_id=page_max_trx_id@entry=263186)

    at /test/10.11_dbg/storage/innobase/row/row0purge.cc:832

#9  0x000055709a71a85e in row_purge_remove_sec_if_poss (entry=0x14b028008960, index=0x14b0781eda80, node=0x55709d9cb300) at /test/10.11_dbg/storage/innobase/row/row0purge.cc:995

#10 row_purge_del_mark (node=0x55709d9cb300) at /test/10.11_dbg/storage/innobase/row/row0purge.cc:1027

#11 row_purge_record_func (node=node@entry=0x55709d9cb300, undo_rec=undo_rec@entry=0x14b10855094a "\tr\016\002\033", thr=thr@entry=0x55709d9ca720, updated_extern=<optimized out>)

    at /test/10.11_dbg/storage/innobase/row/row0purge.cc:1530

#12 0x000055709a71c544 in row_purge (thr=<optimized out>, undo_rec=<optimized out>, node=<optimized out>) at /test/10.11_dbg/storage/innobase/row/row0purge.cc:1591

#13 row_purge_step (thr=thr@entry=0x55709d9ca720) at /test/10.11_dbg/storage/innobase/row/row0purge.cc:1654

#14 0x000055709a6925b8 in que_thr_step (thr=0x55709d9ca720) at /test/10.11_dbg/storage/innobase/que/que0que.cc:554

#15 que_run_threads_low (thr=0x55709d9ca720) at /test/10.11_dbg/storage/innobase/que/que0que.cc:610

#16 que_run_threads (thr=thr@entry=0x55709d9ca720) at /test/10.11_dbg/storage/innobase/que/que0que.cc:630

#17 0x000055709a76b860 in srv_task_execute () at /test/10.11_dbg/storage/innobase/srv/srv0srv.cc:1439

#18 srv_purge_worker_task_low () at /test/10.11_dbg/storage/innobase/srv/srv0srv.cc:1570

#19 0x000055709a76c1bc in purge_worker_callback () at /test/10.11_dbg/storage/innobase/srv/srv0srv.cc:1581

#20 0x000055709a93ca53 in tpool::task_group::execute (this=0x55709be36080 <purge_task_group>, t=t@entry=0x55709be173c0 <purge_worker_task>) at /test/10.11_dbg/tpool/task_group.cc:70

#21 0x000055709a93cadd in tpool::task::execute (this=0x55709be173c0 <purge_worker_task>) at /test/10.11_dbg/tpool/task.cc:32

#22 0x000055709a93aa9f in tpool::thread_pool_generic::worker_main (this=0x55709d93a940, thread_var=0x55709d93b480) at /test/10.11_dbg/tpool/tpool_generic.cc:583

#23 0x000055709a93bcc4 in std::__invoke_impl<void, void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> (__t=<optimized out>, __f=<optimized out>)

    at /usr/include/c++/9/bits/invoke.h:89

#24 std::__invoke<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> (__fn=<optimized out>) at /usr/include/c++/9/bits/invoke.h:95

#25 std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> >::_M_invoke<0ul, 1ul, 2ul> (this=<optimized out>)

    at /usr/include/c++/9/thread:244

#26 std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> >::operator() (this=<optimized out>)

    at /usr/include/c++/9/thread:251

#27 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (tpool::thread_pool_generic::*)(tpool::worker_data*), tpool::thread_pool_generic*, tpool::worker_data*> > >::_M_run (this=<optimized out>)

    at /usr/include/c++/9/thread:195

#28 0x000014b119771de4 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6

#29 0x000014b11988b609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#30 0x000014b119477133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

(gdb)