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[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007ff9fd55a4ed in poll () from /lib/x86_64-linux-gnu/libc.so.6

Thread 38 (Thread 0x7ff9fd47a700 (LWP 1072)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x000055e4d0d7383d in safe_cond_timedwait (cond=0x55e4d2285940 <COND_timer>, mp=0x55e4d2285880 <LOCK_timer>, abstime=0x7ff9fd479f00, file=0x55e4d117ab30 "/data/src/10.3/include/mysql/psi/mysql_thread.h", line=1186) at /data/src/10.3/mysys/thr_mutex.c:546
#2  0x000055e4d0d7482c in inline_mysql_cond_timedwait (that=0x55e4d2285940 <COND_timer>, mutex=0x55e4d2285880 <LOCK_timer>, abstime=0x7ff9fd479f00, src_file=0x55e4d117ab60 "/data/src/10.3/mysys/thr_timer.c", src_line=292) at /data/src/10.3/include/mysql/psi/mysql_thread.h:1186
#3  0x000055e4d0d75329 in timer_handler (arg=0x0) at /data/src/10.3/mysys/thr_timer.c:292
#4  0x00007ff9ff17d494 in start_thread (arg=0x7ff9fd47a700) at pthread_create.c:333
#5  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 37 (Thread 0x7ff9e8583700 (LWP 1073)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x000055e4d0d7383d in safe_cond_timedwait (cond=0x55e4d2222cc0 <COND_checkpoint>, mp=0x55e4d2222c00 <LOCK_checkpoint>, abstime=0x7ff9e8582e50, file=0x55e4d0fd5670 "/data/src/10.3/include/mysql/psi/mysql_thread.h", line=1186) at /data/src/10.3/mysys/thr_mutex.c:546
#2  0x000055e4d07ed9fc in inline_mysql_cond_timedwait (that=0x55e4d2222cc0 <COND_checkpoint>, mutex=0x55e4d2222c00 <LOCK_checkpoint>, abstime=0x7ff9e8582e50, src_file=0x55e4d0fd56a0 "/data/src/10.3/storage/maria/ma_servicethread.c", src_line=116) at /data/src/10.3/include/mysql/psi/mysql_thread.h:1186
#3  0x000055e4d07edebf in my_service_thread_sleep (control=0x55e4d181cd00 <checkpoint_control>, sleep_time=30000000000) at /data/src/10.3/storage/maria/ma_servicethread.c:115
#4  0x000055e4d07e27e4 in ma_checkpoint_background (arg=0x1e) at /data/src/10.3/storage/maria/ma_checkpoint.c:709
#5  0x00007ff9ff17d494 in start_thread (arg=0x7ff9e8583700) at pthread_create.c:333
#6  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 36 (Thread 0x7ff9e5b64700 (LWP 1074)):
#0  0x00007ff9fef746ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000055e4d0987e33 in LinuxAIOHandler::collect (this=0x7ff9e5b63c40) at /data/src/10.3/storage/innobase/os/os0file.cc:1893
#2  0x000055e4d0988360 in LinuxAIOHandler::poll (this=0x7ff9e5b63c40, m1=0x7ff9e5b63ce8, m2=0x7ff9e5b63cf0, request=0x7ff9e5b63d20) at /data/src/10.3/storage/innobase/os/os0file.cc:2038
#3  0x000055e4d09884c0 in os_aio_linux_handler (global_segment=0, m1=0x7ff9e5b63ce8, m2=0x7ff9e5b63cf0, request=0x7ff9e5b63d20) at /data/src/10.3/storage/innobase/os/os0file.cc:2092
#4  0x000055e4d098d150 in os_aio_handler (segment=0, m1=0x7ff9e5b63ce8, m2=0x7ff9e5b63cf0, request=0x7ff9e5b63d20) at /data/src/10.3/storage/innobase/os/os0file.cc:5720
#5  0x000055e4d0c0bf62 in fil_aio_wait (segment=0) at /data/src/10.3/storage/innobase/fil/fil0fil.cc:5317
#6  0x000055e4d0a9bdd4 in io_handler_thread (arg=0x55e4d226e0c0 <n>) at /data/src/10.3/storage/innobase/srv/srv0start.cc:340
#7  0x00007ff9ff17d494 in start_thread (arg=0x7ff9e5b64700) at pthread_create.c:333
#8  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 35 (Thread 0x7ff9e5363700 (LWP 1075)):
#0  0x00007ff9fef746ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000055e4d0987e33 in LinuxAIOHandler::collect (this=0x7ff9e5362c40) at /data/src/10.3/storage/innobase/os/os0file.cc:1893
#2  0x000055e4d0988360 in LinuxAIOHandler::poll (this=0x7ff9e5362c40, m1=0x7ff9e5362ce8, m2=0x7ff9e5362cf0, request=0x7ff9e5362d20) at /data/src/10.3/storage/innobase/os/os0file.cc:2038
#3  0x000055e4d09884c0 in os_aio_linux_handler (global_segment=1, m1=0x7ff9e5362ce8, m2=0x7ff9e5362cf0, request=0x7ff9e5362d20) at /data/src/10.3/storage/innobase/os/os0file.cc:2092
#4  0x000055e4d098d150 in os_aio_handler (segment=1, m1=0x7ff9e5362ce8, m2=0x7ff9e5362cf0, request=0x7ff9e5362d20) at /data/src/10.3/storage/innobase/os/os0file.cc:5720
#5  0x000055e4d0c0bf62 in fil_aio_wait (segment=1) at /data/src/10.3/storage/innobase/fil/fil0fil.cc:5317
#6  0x000055e4d0a9bdd4 in io_handler_thread (arg=0x55e4d226e0c8 <n+8>) at /data/src/10.3/storage/innobase/srv/srv0start.cc:340
#7  0x00007ff9ff17d494 in start_thread (arg=0x7ff9e5363700) at pthread_create.c:333
#8  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 34 (Thread 0x7ff9e4b62700 (LWP 1076)):
#0  0x00007ff9fef746ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000055e4d0987e33 in LinuxAIOHandler::collect (this=0x7ff9e4b61c40) at /data/src/10.3/storage/innobase/os/os0file.cc:1893
#2  0x000055e4d0988360 in LinuxAIOHandler::poll (this=0x7ff9e4b61c40, m1=0x7ff9e4b61ce8, m2=0x7ff9e4b61cf0, request=0x7ff9e4b61d20) at /data/src/10.3/storage/innobase/os/os0file.cc:2038
#3  0x000055e4d09884c0 in os_aio_linux_handler (global_segment=2, m1=0x7ff9e4b61ce8, m2=0x7ff9e4b61cf0, request=0x7ff9e4b61d20) at /data/src/10.3/storage/innobase/os/os0file.cc:2092
#4  0x000055e4d098d150 in os_aio_handler (segment=2, m1=0x7ff9e4b61ce8, m2=0x7ff9e4b61cf0, request=0x7ff9e4b61d20) at /data/src/10.3/storage/innobase/os/os0file.cc:5720
#5  0x000055e4d0c0bf62 in fil_aio_wait (segment=2) at /data/src/10.3/storage/innobase/fil/fil0fil.cc:5317
#6  0x000055e4d0a9bdd4 in io_handler_thread (arg=0x55e4d226e0d0 <n+16>) at /data/src/10.3/storage/innobase/srv/srv0start.cc:340
#7  0x00007ff9ff17d494 in start_thread (arg=0x7ff9e4b62700) at pthread_create.c:333
#8  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 33 (Thread 0x7ff9d79bf700 (LWP 1077)):
#0  0x00007ff9fef746ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000055e4d0987e33 in LinuxAIOHandler::collect (this=0x7ff9d79bec40) at /data/src/10.3/storage/innobase/os/os0file.cc:1893
#2  0x000055e4d0988360 in LinuxAIOHandler::poll (this=0x7ff9d79bec40, m1=0x7ff9d79bece8, m2=0x7ff9d79becf0, request=0x7ff9d79bed20) at /data/src/10.3/storage/innobase/os/os0file.cc:2038
#3  0x000055e4d09884c0 in os_aio_linux_handler (global_segment=3, m1=0x7ff9d79bece8, m2=0x7ff9d79becf0, request=0x7ff9d79bed20) at /data/src/10.3/storage/innobase/os/os0file.cc:2092
#4  0x000055e4d098d150 in os_aio_handler (segment=3, m1=0x7ff9d79bece8, m2=0x7ff9d79becf0, request=0x7ff9d79bed20) at /data/src/10.3/storage/innobase/os/os0file.cc:5720
#5  0x000055e4d0c0bf62 in fil_aio_wait (segment=3) at /data/src/10.3/storage/innobase/fil/fil0fil.cc:5317
#6  0x000055e4d0a9bdd4 in io_handler_thread (arg=0x55e4d226e0d8 <n+24>) at /data/src/10.3/storage/innobase/srv/srv0start.cc:340
#7  0x00007ff9ff17d494 in start_thread (arg=0x7ff9d79bf700) at pthread_create.c:333
#8  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 32 (Thread 0x7ff9d71be700 (LWP 1078)):
#0  0x00007ff9fef746ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000055e4d0987e33 in LinuxAIOHandler::collect (this=0x7ff9d71bdc40) at /data/src/10.3/storage/innobase/os/os0file.cc:1893
#2  0x000055e4d0988360 in LinuxAIOHandler::poll (this=0x7ff9d71bdc40, m1=0x7ff9d71bdce8, m2=0x7ff9d71bdcf0, request=0x7ff9d71bdd20) at /data/src/10.3/storage/innobase/os/os0file.cc:2038
#3  0x000055e4d09884c0 in os_aio_linux_handler (global_segment=4, m1=0x7ff9d71bdce8, m2=0x7ff9d71bdcf0, request=0x7ff9d71bdd20) at /data/src/10.3/storage/innobase/os/os0file.cc:2092
#4  0x000055e4d098d150 in os_aio_handler (segment=4, m1=0x7ff9d71bdce8, m2=0x7ff9d71bdcf0, request=0x7ff9d71bdd20) at /data/src/10.3/storage/innobase/os/os0file.cc:5720
#5  0x000055e4d0c0bf62 in fil_aio_wait (segment=4) at /data/src/10.3/storage/innobase/fil/fil0fil.cc:5317
#6  0x000055e4d0a9bdd4 in io_handler_thread (arg=0x55e4d226e0e0 <n+32>) at /data/src/10.3/storage/innobase/srv/srv0start.cc:340
#7  0x00007ff9ff17d494 in start_thread (arg=0x7ff9d71be700) at pthread_create.c:333
#8  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 31 (Thread 0x7ff9d69bd700 (LWP 1079)):
#0  0x00007ff9fef746ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000055e4d0987e33 in LinuxAIOHandler::collect (this=0x7ff9d69bcc40) at /data/src/10.3/storage/innobase/os/os0file.cc:1893
#2  0x000055e4d0988360 in LinuxAIOHandler::poll (this=0x7ff9d69bcc40, m1=0x7ff9d69bcce8, m2=0x7ff9d69bccf0, request=0x7ff9d69bcd20) at /data/src/10.3/storage/innobase/os/os0file.cc:2038
#3  0x000055e4d09884c0 in os_aio_linux_handler (global_segment=5, m1=0x7ff9d69bcce8, m2=0x7ff9d69bccf0, request=0x7ff9d69bcd20) at /data/src/10.3/storage/innobase/os/os0file.cc:2092
#4  0x000055e4d098d150 in os_aio_handler (segment=5, m1=0x7ff9d69bcce8, m2=0x7ff9d69bccf0, request=0x7ff9d69bcd20) at /data/src/10.3/storage/innobase/os/os0file.cc:5720
#5  0x000055e4d0c0bf62 in fil_aio_wait (segment=5) at /data/src/10.3/storage/innobase/fil/fil0fil.cc:5317
#6  0x000055e4d0a9bdd4 in io_handler_thread (arg=0x55e4d226e0e8 <n+40>) at /data/src/10.3/storage/innobase/srv/srv0start.cc:340
#7  0x00007ff9ff17d494 in start_thread (arg=0x7ff9d69bd700) at pthread_create.c:333
#8  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 30 (Thread 0x7ff9d61bc700 (LWP 1080)):
#0  0x00007ff9fef746ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000055e4d0987e33 in LinuxAIOHandler::collect (this=0x7ff9d61bbc40) at /data/src/10.3/storage/innobase/os/os0file.cc:1893
#2  0x000055e4d0988360 in LinuxAIOHandler::poll (this=0x7ff9d61bbc40, m1=0x7ff9d61bbce8, m2=0x7ff9d61bbcf0, request=0x7ff9d61bbd20) at /data/src/10.3/storage/innobase/os/os0file.cc:2038
#3  0x000055e4d09884c0 in os_aio_linux_handler (global_segment=6, m1=0x7ff9d61bbce8, m2=0x7ff9d61bbcf0, request=0x7ff9d61bbd20) at /data/src/10.3/storage/innobase/os/os0file.cc:2092
#4  0x000055e4d098d150 in os_aio_handler (segment=6, m1=0x7ff9d61bbce8, m2=0x7ff9d61bbcf0, request=0x7ff9d61bbd20) at /data/src/10.3/storage/innobase/os/os0file.cc:5720
#5  0x000055e4d0c0bf62 in fil_aio_wait (segment=6) at /data/src/10.3/storage/innobase/fil/fil0fil.cc:5317
#6  0x000055e4d0a9bdd4 in io_handler_thread (arg=0x55e4d226e0f0 <n+48>) at /data/src/10.3/storage/innobase/srv/srv0start.cc:340
#7  0x00007ff9ff17d494 in start_thread (arg=0x7ff9d61bc700) at pthread_create.c:333
#8  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 29 (Thread 0x7ff9d59bb700 (LWP 1081)):
#0  0x00007ff9fef746ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000055e4d0987e33 in LinuxAIOHandler::collect (this=0x7ff9d59bac40) at /data/src/10.3/storage/innobase/os/os0file.cc:1893
#2  0x000055e4d0988360 in LinuxAIOHandler::poll (this=0x7ff9d59bac40, m1=0x7ff9d59bace8, m2=0x7ff9d59bacf0, request=0x7ff9d59bad20) at /data/src/10.3/storage/innobase/os/os0file.cc:2038
#3  0x000055e4d09884c0 in os_aio_linux_handler (global_segment=7, m1=0x7ff9d59bace8, m2=0x7ff9d59bacf0, request=0x7ff9d59bad20) at /data/src/10.3/storage/innobase/os/os0file.cc:2092
#4  0x000055e4d098d150 in os_aio_handler (segment=7, m1=0x7ff9d59bace8, m2=0x7ff9d59bacf0, request=0x7ff9d59bad20) at /data/src/10.3/storage/innobase/os/os0file.cc:5720
#5  0x000055e4d0c0bf62 in fil_aio_wait (segment=7) at /data/src/10.3/storage/innobase/fil/fil0fil.cc:5317
#6  0x000055e4d0a9bdd4 in io_handler_thread (arg=0x55e4d226e0f8 <n+56>) at /data/src/10.3/storage/innobase/srv/srv0start.cc:340
#7  0x00007ff9ff17d494 in start_thread (arg=0x7ff9d59bb700) at pthread_create.c:333
#8  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 28 (Thread 0x7ff9d51ba700 (LWP 1082)):
#0  0x00007ff9fef746ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000055e4d0987e33 in LinuxAIOHandler::collect (this=0x7ff9d51b9c40) at /data/src/10.3/storage/innobase/os/os0file.cc:1893
#2  0x000055e4d0988360 in LinuxAIOHandler::poll (this=0x7ff9d51b9c40, m1=0x7ff9d51b9ce8, m2=0x7ff9d51b9cf0, request=0x7ff9d51b9d20) at /data/src/10.3/storage/innobase/os/os0file.cc:2038
#3  0x000055e4d09884c0 in os_aio_linux_handler (global_segment=8, m1=0x7ff9d51b9ce8, m2=0x7ff9d51b9cf0, request=0x7ff9d51b9d20) at /data/src/10.3/storage/innobase/os/os0file.cc:2092
#4  0x000055e4d098d150 in os_aio_handler (segment=8, m1=0x7ff9d51b9ce8, m2=0x7ff9d51b9cf0, request=0x7ff9d51b9d20) at /data/src/10.3/storage/innobase/os/os0file.cc:5720
#5  0x000055e4d0c0bf62 in fil_aio_wait (segment=8) at /data/src/10.3/storage/innobase/fil/fil0fil.cc:5317
#6  0x000055e4d0a9bdd4 in io_handler_thread (arg=0x55e4d226e100 <n+64>) at /data/src/10.3/storage/innobase/srv/srv0start.cc:340
#7  0x00007ff9ff17d494 in start_thread (arg=0x7ff9d51ba700) at pthread_create.c:333
#8  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 27 (Thread 0x7ff9d49b9700 (LWP 1083)):
#0  0x00007ff9fef746ea in ?? () from /lib/x86_64-linux-gnu/libaio.so.1
#1  0x000055e4d0987e33 in LinuxAIOHandler::collect (this=0x7ff9d49b8c40) at /data/src/10.3/storage/innobase/os/os0file.cc:1893
#2  0x000055e4d0988360 in LinuxAIOHandler::poll (this=0x7ff9d49b8c40, m1=0x7ff9d49b8ce8, m2=0x7ff9d49b8cf0, request=0x7ff9d49b8d20) at /data/src/10.3/storage/innobase/os/os0file.cc:2038
#3  0x000055e4d09884c0 in os_aio_linux_handler (global_segment=9, m1=0x7ff9d49b8ce8, m2=0x7ff9d49b8cf0, request=0x7ff9d49b8d20) at /data/src/10.3/storage/innobase/os/os0file.cc:2092
#4  0x000055e4d098d150 in os_aio_handler (segment=9, m1=0x7ff9d49b8ce8, m2=0x7ff9d49b8cf0, request=0x7ff9d49b8d20) at /data/src/10.3/storage/innobase/os/os0file.cc:5720
#5  0x000055e4d0c0bf62 in fil_aio_wait (segment=9) at /data/src/10.3/storage/innobase/fil/fil0fil.cc:5317
#6  0x000055e4d0a9bdd4 in io_handler_thread (arg=0x55e4d226e108 <n+72>) at /data/src/10.3/storage/innobase/srv/srv0start.cc:340
#7  0x00007ff9ff17d494 in start_thread (arg=0x7ff9d49b9700) at pthread_create.c:333
#8  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 26 (Thread 0x7ff9d41b8700 (LWP 1084)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x000055e4d09949df in os_event::timed_wait (this=0x55e4d29ada60, abstime=0x7ff9d41b7c30) at /data/src/10.3/storage/innobase/os/os0event.cc:286
#2  0x000055e4d0994ce9 in os_event::wait_time_low (this=0x55e4d29ada60, time_in_usec=1000000, reset_sig_count=2) at /data/src/10.3/storage/innobase/os/os0event.cc:413
#3  0x000055e4d0994eca in os_event_wait_time_low (event=0x55e4d29ada60, time_in_usec=1000000, reset_sig_count=2) at /data/src/10.3/storage/innobase/os/os0event.cc:518
#4  0x000055e4d0b8ef82 in pc_sleep_if_needed (next_loop_time=1513026473527, sig_count=2, cur_time=1513026472527) at /data/src/10.3/storage/innobase/buf/buf0flu.cc:2711
#5  0x000055e4d0b90194 in buf_flush_page_cleaner_coordinator () at /data/src/10.3/storage/innobase/buf/buf0flu.cc:3209
#6  0x00007ff9ff17d494 in start_thread (arg=0x7ff9d41b8700) at pthread_create.c:333
#7  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 25 (Thread 0x7ff9d39b7700 (LWP 1086)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x000055e4d09949df in os_event::timed_wait (this=0x55e4d34e3510, abstime=0x7ff9d39b6e80) at /data/src/10.3/storage/innobase/os/os0event.cc:286
#2  0x000055e4d0994ce9 in os_event::wait_time_low (this=0x55e4d34e3510, time_in_usec=1000000, reset_sig_count=4) at /data/src/10.3/storage/innobase/os/os0event.cc:413
#3  0x000055e4d0994eca in os_event_wait_time_low (event=0x55e4d34e3510, time_in_usec=1000000, reset_sig_count=4) at /data/src/10.3/storage/innobase/os/os0event.cc:518
#4  0x000055e4d095fe39 in lock_wait_timeout_thread () at /data/src/10.3/storage/innobase/lock/lock0wait.cc:529
#5  0x00007ff9ff17d494 in start_thread (arg=0x7ff9d39b7700) at pthread_create.c:333
#6  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 24 (Thread 0x7ff9d31b6700 (LWP 1087)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000055e4d099513a in os_event::wait (this=0x55e4d29ad320) at /data/src/10.3/storage/innobase/os/os0event.cc:166
#2  0x000055e4d0994b49 in os_event::wait_low (this=0x55e4d29ad320, reset_sig_count=1) at /data/src/10.3/storage/innobase/os/os0event.cc:336
#3  0x000055e4d0994eef in os_event_wait_low (event=0x55e4d29ad320, reset_sig_count=1) at /data/src/10.3/storage/innobase/os/os0event.cc:535
#4  0x000055e4d0aa5b08 in sync_array_wait_event (arr=0x55e4d2975530, cell=@0x7ff9d31b5c90: 0x55e4d29757c0) at /data/src/10.3/storage/innobase/sync/sync0arr.cc:475
#5  0x000055e4d08e5862 in TTASEventMutex<GenericPolicy>::enter (this=0x55e4d226a0c0 <srv_innodb_monitor_mutex>, max_spins=60, max_delay=6, filename=0x55e4d10a4350 "/data/src/10.3/storage/innobase/srv/srv0srv.cc", line=1165) at /data/src/10.3/storage/innobase/include/ib0mutex.h:516
#6  0x000055e4d08e3e4b in PolicyMutex<TTASEventMutex<GenericPolicy> >::enter (this=0x55e4d226a0c0 <srv_innodb_monitor_mutex>, n_spins=30, n_delay=6, name=0x55e4d10a4350 "/data/src/10.3/storage/innobase/srv/srv0srv.cc", line=1165) at /data/src/10.3/storage/innobase/include/ib0mutex.h:635
#7  0x000055e4d0a9558b in srv_refresh_innodb_monitor_stats () at /data/src/10.3/storage/innobase/srv/srv0srv.cc:1165
#8  0x000055e4d0a96fc1 in srv_error_monitor_thread () at /data/src/10.3/storage/innobase/srv/srv0srv.cc:1905
#9  0x00007ff9ff17d494 in start_thread (arg=0x7ff9d31b6700) at pthread_create.c:333
#10 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 23 (Thread 0x7ff9d29b5700 (LWP 1088)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000055e4d099513a in os_event::wait (this=0x55e4d309db40) at /data/src/10.3/storage/innobase/os/os0event.cc:166
#2  0x000055e4d0994b49 in os_event::wait_low (this=0x55e4d309db40, reset_sig_count=1) at /data/src/10.3/storage/innobase/os/os0event.cc:336
#3  0x000055e4d0994eef in os_event_wait_low (event=0x55e4d309db40, reset_sig_count=1) at /data/src/10.3/storage/innobase/os/os0event.cc:535
#4  0x000055e4d0aa5b08 in sync_array_wait_event (arr=0x55e4d2975530, cell=@0x7ff9d29b4d28: 0x55e4d2975640) at /data/src/10.3/storage/innobase/sync/sync0arr.cc:475
#5  0x000055e4d0aa8a1f in rw_lock_s_lock_spin (lock=0x55e4d309da80, pass=0, file_name=0x55e4d10a4350 "/data/src/10.3/storage/innobase/srv/srv0srv.cc", line=1306) at /data/src/10.3/storage/innobase/sync/sync0rw.cc:394
#6  0x000055e4d0a93e19 in rw_lock_s_lock_func (lock=0x55e4d309da80, pass=0, file_name=0x55e4d10a4350 "/data/src/10.3/storage/innobase/srv/srv0srv.cc", line=1306) at /data/src/10.3/storage/innobase/include/sync0rw.ic:294
#7  0x000055e4d0a94272 in pfs_rw_lock_s_lock_func (lock=0x55e4d309da80, pass=0, file_name=0x55e4d10a4350 "/data/src/10.3/storage/innobase/srv/srv0srv.cc", line=1306) at /data/src/10.3/storage/innobase/include/sync0rw.ic:666
#8  0x000055e4d0a959b9 in srv_printf_innodb_monitor (file=0x7ff9fd814520 <_IO_2_1_stderr_>, nowait=1, trx_start_pos=0x0, trx_end=0x0) at /data/src/10.3/storage/innobase/srv/srv0srv.cc:1306
#9  0x000055e4d0a96b09 in srv_monitor_thread () at /data/src/10.3/storage/innobase/srv/srv0srv.cc:1744
#10 0x00007ff9ff17d494 in start_thread (arg=0x7ff9d29b5700) at pthread_create.c:333
#11 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 22 (Thread 0x7ff9d21b4700 (LWP 1089)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x000055e4d09949df in os_event::timed_wait (this=0x55e4d35faa40, abstime=0x7ff9d21b3e90) at /data/src/10.3/storage/innobase/os/os0event.cc:286
#2  0x000055e4d0994ce9 in os_event::wait_time_low (this=0x55e4d35faa40, time_in_usec=10000000, reset_sig_count=1) at /data/src/10.3/storage/innobase/os/os0event.cc:413
#3  0x000055e4d0994eca in os_event_wait_time_low (event=0x55e4d35faa40, time_in_usec=10000000, reset_sig_count=0) at /data/src/10.3/storage/innobase/os/os0event.cc:518
#4  0x000055e4d0bf1be1 in dict_stats_thread () at /data/src/10.3/storage/innobase/dict/dict0stats_bg.cc:457
#5  0x00007ff9ff17d494 in start_thread (arg=0x7ff9d21b4700) at pthread_create.c:333
#6  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 21 (Thread 0x7ff9d19b3700 (LWP 1090)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225
#1  0x000055e4d09949df in os_event::timed_wait (this=0x55e4d32cda80, abstime=0x7ff9d19b2c90) at /data/src/10.3/storage/innobase/os/os0event.cc:286
#2  0x000055e4d0994ce9 in os_event::wait_time_low (this=0x55e4d32cda80, time_in_usec=5000000, reset_sig_count=1) at /data/src/10.3/storage/innobase/os/os0event.cc:413
#3  0x000055e4d0994eca in os_event_wait_time_low (event=0x55e4d32cda80, time_in_usec=5000000, reset_sig_count=1) at /data/src/10.3/storage/innobase/os/os0event.cc:518
#4  0x000055e4d0b05026 in ib_wqueue_timedwait (wq=0x55e4d32cd970, wait_in_usecs=5000000) at /data/src/10.3/storage/innobase/ut/ut0wqueue.cc:163
#5  0x000055e4d0c56be0 in fts_optimize_thread (arg=0x55e4d32cd970) at /data/src/10.3/storage/innobase/fts/fts0opt.cc:3032
#6  0x00007ff9ff17d494 in start_thread (arg=0x7ff9d19b3700) at pthread_create.c:333
#7  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 20 (Thread 0x7ff9d11b2700 (LWP 1100)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000055e4d099513a in os_event::wait (this=0x55e4d3604f30) at /data/src/10.3/storage/innobase/os/os0event.cc:166
#2  0x000055e4d0994b49 in os_event::wait_low (this=0x55e4d3604f30, reset_sig_count=3332) at /data/src/10.3/storage/innobase/os/os0event.cc:336
#3  0x000055e4d0994eef in os_event_wait_low (event=0x55e4d3604f30, reset_sig_count=3332) at /data/src/10.3/storage/innobase/os/os0event.cc:535
#4  0x000055e4d0aa5b08 in sync_array_wait_event (arr=0x55e4d2975530, cell=@0x7ff9d11b1d88: 0x55e4d2975600) at /data/src/10.3/storage/innobase/sync/sync0arr.cc:475
#5  0x000055e4d0aa92dd in rw_lock_x_lock_func (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d10a4350 "/data/src/10.3/storage/innobase/srv/srv0srv.cc", line=2120) at /data/src/10.3/storage/innobase/sync/sync0rw.cc:767
#6  0x000055e4d0a941c1 in pfs_rw_lock_x_lock_func (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d10a4350 "/data/src/10.3/storage/innobase/srv/srv0srv.cc", line=2120) at /data/src/10.3/storage/innobase/include/sync0rw.ic:573
#7  0x000055e4d0a975f5 in srv_master_evict_from_table_cache (pct_check=100) at /data/src/10.3/storage/innobase/srv/srv0srv.cc:2120
#8  0x000055e4d0a980bc in srv_master_do_idle_tasks () at /data/src/10.3/storage/innobase/srv/srv0srv.cc:2364
#9  0x000055e4d0a9868d in srv_master_thread (arg=0x0) at /data/src/10.3/storage/innobase/srv/srv0srv.cc:2489
#10 0x00007ff9ff17d494 in start_thread (arg=0x7ff9d11b2700) at pthread_create.c:333
#11 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 19 (Thread 0x7ff9d09b1700 (LWP 1101)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000055e4d099513a in os_event::wait (this=0x55e4d3604f30) at /data/src/10.3/storage/innobase/os/os0event.cc:166
#2  0x000055e4d0994b49 in os_event::wait_low (this=0x55e4d3604f30, reset_sig_count=3332) at /data/src/10.3/storage/innobase/os/os0event.cc:336
#3  0x000055e4d0994eef in os_event_wait_low (event=0x55e4d3604f30, reset_sig_count=3332) at /data/src/10.3/storage/innobase/os/os0event.cc:535
#4  0x000055e4d0aa5b08 in sync_array_wait_event (arr=0x55e4d2975530, cell=@0x7ff9d09b0bc8: 0x55e4d2975880) at /data/src/10.3/storage/innobase/sync/sync0arr.cc:475
#5  0x000055e4d0aa8a1f in rw_lock_s_lock_spin (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d1081da0 "/data/src/10.3/storage/innobase/row/row0purge.cc", line=928) at /data/src/10.3/storage/innobase/sync/sync0rw.cc:394
#6  0x000055e4d0a4039d in rw_lock_s_lock_func (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d1081da0 "/data/src/10.3/storage/innobase/row/row0purge.cc", line=928) at /data/src/10.3/storage/innobase/include/sync0rw.ic:294
#7  0x000055e4d0a407c8 in pfs_rw_lock_s_lock_func (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d1081da0 "/data/src/10.3/storage/innobase/row/row0purge.cc", line=928) at /data/src/10.3/storage/innobase/include/sync0rw.ic:666
#8  0x000055e4d0a4595e in row_purge_parse_undo_rec (node=0x55e4d38cde90, undo_rec=0x7ff9b8015fb8 "!l\v", updated_extern=0x7ff9d09b0d3e, thr=0x55e4d38cddc8) at /data/src/10.3/storage/innobase/row/row0purge.cc:928
#9  0x000055e4d0a4613c in row_purge (node=0x55e4d38cde90, undo_rec=0x7ff9b8015fb8 "!l\v", thr=0x55e4d38cddc8) at /data/src/10.3/storage/innobase/row/row0purge.cc:1102
#10 0x000055e4d0a463ec in row_purge_step (thr=0x55e4d38cddc8) at /data/src/10.3/storage/innobase/row/row0purge.cc:1184
#11 0x000055e4d09c95ee in que_thr_step (thr=0x55e4d38cddc8) at /data/src/10.3/storage/innobase/que/que0que.cc:1054
#12 0x000055e4d09c9819 in que_run_threads_low (thr=0x55e4d38cddc8) at /data/src/10.3/storage/innobase/que/que0que.cc:1116
#13 0x000055e4d09c99fb in que_run_threads (thr=0x55e4d38cddc8) at /data/src/10.3/storage/innobase/que/que0que.cc:1156
#14 0x000055e4d0ac982f in trx_purge (n_purge_threads=4, batch_size=300, truncate=false) at /data/src/10.3/storage/innobase/trx/trx0purge.cc:1667
#15 0x000055e4d0a98e14 in srv_do_purge (n_total_purged=0x7ff9d09b0ee8) at /data/src/10.3/storage/innobase/srv/srv0srv.cc:2733
#16 0x000055e4d0a993c7 in srv_purge_coordinator_thread (arg=0x0) at /data/src/10.3/storage/innobase/srv/srv0srv.cc:2876
#17 0x00007ff9ff17d494 in start_thread (arg=0x7ff9d09b1700) at pthread_create.c:333
#18 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 18 (Thread 0x7ff9c3fff700 (LWP 1102)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000055e4d099513a in os_event::wait (this=0x55e4d3604f30) at /data/src/10.3/storage/innobase/os/os0event.cc:166
#2  0x000055e4d0994b49 in os_event::wait_low (this=0x55e4d3604f30, reset_sig_count=3332) at /data/src/10.3/storage/innobase/os/os0event.cc:336
#3  0x000055e4d0994eef in os_event_wait_low (event=0x55e4d3604f30, reset_sig_count=3332) at /data/src/10.3/storage/innobase/os/os0event.cc:535
#4  0x000055e4d0aa5b08 in sync_array_wait_event (arr=0x55e4d2975530, cell=@0x7ff9c3ffec68: 0x55e4d2975800) at /data/src/10.3/storage/innobase/sync/sync0arr.cc:475
#5  0x000055e4d0aa8a1f in rw_lock_s_lock_spin (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d1081da0 "/data/src/10.3/storage/innobase/row/row0purge.cc", line=928) at /data/src/10.3/storage/innobase/sync/sync0rw.cc:394
#6  0x000055e4d0a4039d in rw_lock_s_lock_func (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d1081da0 "/data/src/10.3/storage/innobase/row/row0purge.cc", line=928) at /data/src/10.3/storage/innobase/include/sync0rw.ic:294
#7  0x000055e4d0a407c8 in pfs_rw_lock_s_lock_func (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d1081da0 "/data/src/10.3/storage/innobase/row/row0purge.cc", line=928) at /data/src/10.3/storage/innobase/include/sync0rw.ic:666
#8  0x000055e4d0a4595e in row_purge_parse_undo_rec (node=0x55e4d38cd368, undo_rec=0x7ff9b80100b0 "!\206\v\001\017\b", updated_extern=0x7ff9c3ffedde, thr=0x55e4d38cd1b0) at /data/src/10.3/storage/innobase/row/row0purge.cc:928
#9  0x000055e4d0a4613c in row_purge (node=0x55e4d38cd368, undo_rec=0x7ff9b80100b0 "!\206\v\001\017\b", thr=0x55e4d38cd1b0) at /data/src/10.3/storage/innobase/row/row0purge.cc:1102
#10 0x000055e4d0a463ec in row_purge_step (thr=0x55e4d38cd1b0) at /data/src/10.3/storage/innobase/row/row0purge.cc:1184
#11 0x000055e4d09c95ee in que_thr_step (thr=0x55e4d38cd1b0) at /data/src/10.3/storage/innobase/que/que0que.cc:1054
#12 0x000055e4d09c9819 in que_run_threads_low (thr=0x55e4d38cd1b0) at /data/src/10.3/storage/innobase/que/que0que.cc:1116
#13 0x000055e4d09c99fb in que_run_threads (thr=0x55e4d38cd1b0) at /data/src/10.3/storage/innobase/que/que0que.cc:1156
#14 0x000055e4d0a98971 in srv_task_execute () at /data/src/10.3/storage/innobase/srv/srv0srv.cc:2580
#15 0x000055e4d0a98ac2 in srv_worker_thread (arg=0x0) at /data/src/10.3/storage/innobase/srv/srv0srv.cc:2627
#16 0x00007ff9ff17d494 in start_thread (arg=0x7ff9c3fff700) at pthread_create.c:333
#17 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 17 (Thread 0x7ff9c37fe700 (LWP 1103)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000055e4d099513a in os_event::wait (this=0x55e4d3604f30) at /data/src/10.3/storage/innobase/os/os0event.cc:166
#2  0x000055e4d0994b49 in os_event::wait_low (this=0x55e4d3604f30, reset_sig_count=3332) at /data/src/10.3/storage/innobase/os/os0event.cc:336
#3  0x000055e4d0994eef in os_event_wait_low (event=0x55e4d3604f30, reset_sig_count=3332) at /data/src/10.3/storage/innobase/os/os0event.cc:535
#4  0x000055e4d0aa5b08 in sync_array_wait_event (arr=0x55e4d2975530, cell=@0x7ff9c37fdc68: 0x55e4d2975780) at /data/src/10.3/storage/innobase/sync/sync0arr.cc:475
#5  0x000055e4d0aa8a1f in rw_lock_s_lock_spin (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d1081da0 "/data/src/10.3/storage/innobase/row/row0purge.cc", line=928) at /data/src/10.3/storage/innobase/sync/sync0rw.cc:394
#6  0x000055e4d0a4039d in rw_lock_s_lock_func (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d1081da0 "/data/src/10.3/storage/innobase/row/row0purge.cc", line=928) at /data/src/10.3/storage/innobase/include/sync0rw.ic:294
#7  0x000055e4d0a407c8 in pfs_rw_lock_s_lock_func (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d1081da0 "/data/src/10.3/storage/innobase/row/row0purge.cc", line=928) at /data/src/10.3/storage/innobase/include/sync0rw.ic:666
#8  0x000055e4d0a4595e in row_purge_parse_undo_rec (node=0x55e4d38cd5d0, undo_rec=0x7ff9b8012048 "!\253<\002\001", updated_extern=0x7ff9c37fddde, thr=0x55e4d38cd508) at /data/src/10.3/storage/innobase/row/row0purge.cc:928
#9  0x000055e4d0a4613c in row_purge (node=0x55e4d38cd5d0, undo_rec=0x7ff9b8012048 "!\253<\002\001", thr=0x55e4d38cd508) at /data/src/10.3/storage/innobase/row/row0purge.cc:1102
#10 0x000055e4d0a463ec in row_purge_step (thr=0x55e4d38cd508) at /data/src/10.3/storage/innobase/row/row0purge.cc:1184
#11 0x000055e4d09c95ee in que_thr_step (thr=0x55e4d38cd508) at /data/src/10.3/storage/innobase/que/que0que.cc:1054
#12 0x000055e4d09c9819 in que_run_threads_low (thr=0x55e4d38cd508) at /data/src/10.3/storage/innobase/que/que0que.cc:1116
#13 0x000055e4d09c99fb in que_run_threads (thr=0x55e4d38cd508) at /data/src/10.3/storage/innobase/que/que0que.cc:1156
#14 0x000055e4d0a98971 in srv_task_execute () at /data/src/10.3/storage/innobase/srv/srv0srv.cc:2580
#15 0x000055e4d0a98ac2 in srv_worker_thread (arg=0x0) at /data/src/10.3/storage/innobase/srv/srv0srv.cc:2627
#16 0x00007ff9ff17d494 in start_thread (arg=0x7ff9c37fe700) at pthread_create.c:333
#17 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 16 (Thread 0x7ff9c2ffd700 (LWP 1104)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000055e4d099513a in os_event::wait (this=0x55e4d3604f30) at /data/src/10.3/storage/innobase/os/os0event.cc:166
#2  0x000055e4d0994b49 in os_event::wait_low (this=0x55e4d3604f30, reset_sig_count=3332) at /data/src/10.3/storage/innobase/os/os0event.cc:336
#3  0x000055e4d0994eef in os_event_wait_low (event=0x55e4d3604f30, reset_sig_count=3332) at /data/src/10.3/storage/innobase/os/os0event.cc:535
#4  0x000055e4d0aa5b08 in sync_array_wait_event (arr=0x55e4d2975530, cell=@0x7ff9c2ffcc68: 0x55e4d2975700) at /data/src/10.3/storage/innobase/sync/sync0arr.cc:475
#5  0x000055e4d0aa8a1f in rw_lock_s_lock_spin (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d1081da0 "/data/src/10.3/storage/innobase/row/row0purge.cc", line=928) at /data/src/10.3/storage/innobase/sync/sync0rw.cc:394
#6  0x000055e4d0a4039d in rw_lock_s_lock_func (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d1081da0 "/data/src/10.3/storage/innobase/row/row0purge.cc", line=928) at /data/src/10.3/storage/innobase/include/sync0rw.ic:294
#7  0x000055e4d0a407c8 in pfs_rw_lock_s_lock_func (lock=0x55e4d36211d0, pass=0, file_name=0x55e4d1081da0 "/data/src/10.3/storage/innobase/row/row0purge.cc", line=928) at /data/src/10.3/storage/innobase/include/sync0rw.ic:666
#8  0x000055e4d0a4595e in row_purge_parse_undo_rec (node=0x55e4d38cdc28, undo_rec=0x7ff9b8013fe0 "\034\336\016\006\016", updated_extern=0x7ff9c2ffcdde, thr=0x55e4d38cd770) at /data/src/10.3/storage/innobase/row/row0purge.cc:928
#9  0x000055e4d0a4613c in row_purge (node=0x55e4d38cdc28, undo_rec=0x7ff9b8013fe0 "\034\336\016\006\016", thr=0x55e4d38cd770) at /data/src/10.3/storage/innobase/row/row0purge.cc:1102
#10 0x000055e4d0a463ec in row_purge_step (thr=0x55e4d38cd770) at /data/src/10.3/storage/innobase/row/row0purge.cc:1184
#11 0x000055e4d09c95ee in que_thr_step (thr=0x55e4d38cd770) at /data/src/10.3/storage/innobase/que/que0que.cc:1054
#12 0x000055e4d09c9819 in que_run_threads_low (thr=0x55e4d38cd770) at /data/src/10.3/storage/innobase/que/que0que.cc:1116
#13 0x000055e4d09c99fb in que_run_threads (thr=0x55e4d38cd770) at /data/src/10.3/storage/innobase/que/que0que.cc:1156
#14 0x000055e4d0a98971 in srv_task_execute () at /data/src/10.3/storage/innobase/srv/srv0srv.cc:2580
#15 0x000055e4d0a98ac2 in srv_worker_thread (arg=0x0) at /data/src/10.3/storage/innobase/srv/srv0srv.cc:2627
#16 0x00007ff9ff17d494 in start_thread (arg=0x7ff9c2ffd700) at pthread_create.c:333
#17 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 15 (Thread 0x7ff9c27fc700 (LWP 1105)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000055e4d099513a in os_event::wait (this=0x55e4d29ad9e0) at /data/src/10.3/storage/innobase/os/os0event.cc:166
#2  0x000055e4d0994b49 in os_event::wait_low (this=0x55e4d29ad9e0, reset_sig_count=1) at /data/src/10.3/storage/innobase/os/os0event.cc:336
#3  0x000055e4d0994eef in os_event_wait_low (event=0x55e4d29ad9e0, reset_sig_count=0) at /data/src/10.3/storage/innobase/os/os0event.cc:535
#4  0x000055e4d0b84836 in buf_dump_thread () at /data/src/10.3/storage/innobase/buf/buf0dump.cc:777
#5  0x00007ff9ff17d494 in start_thread (arg=0x7ff9c27fc700) at pthread_create.c:333
#6  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 14 (Thread 0x7ff9c1ffb700 (LWP 1106)):
#0  0x00007ff9ff1867dd in nanosleep () at ../sysdeps/unix/syscall-template.S:84
#1  0x000055e4d0995431 in os_thread_sleep (tm=1000000) at /data/src/10.3/storage/innobase/os/os0thread.cc:230
#2  0x000055e4d0b5df84 in btr_defragment_thread () at /data/src/10.3/storage/innobase/btr/btr0defragment.cc:762
#3  0x00007ff9ff17d494 in start_thread (arg=0x7ff9c1ffb700) at pthread_create.c:333
#4  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 13 (Thread 0x7ff9c17fa700 (LWP 1107)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000055e4d099513a in os_event::wait (this=0x55e4d29adae0) at /data/src/10.3/storage/innobase/os/os0event.cc:166
#2  0x000055e4d0994b49 in os_event::wait_low (this=0x55e4d29adae0, reset_sig_count=1) at /data/src/10.3/storage/innobase/os/os0event.cc:336
#3  0x000055e4d0994eef in os_event_wait_low (event=0x55e4d29adae0, reset_sig_count=0) at /data/src/10.3/storage/innobase/os/os0event.cc:535
#4  0x000055e4d0b6c338 in buf_resize_thread () at /data/src/10.3/storage/innobase/buf/buf0buf.cc:3076
#5  0x00007ff9ff17d494 in start_thread (arg=0x7ff9c17fa700) at pthread_create.c:333
#6  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 12 (Thread 0x7ff9c0ff9700 (LWP 1108)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000055e4d0d73533 in safe_cond_wait (cond=0x7ff9c0ff8e10, mp=0x7ff9c0ff8e50, file=0x55e4d0ffb940 "/data/src/10.3/include/mysql/psi/mysql_thread.h", line=1149) at /data/src/10.3/mysys/thr_mutex.c:492
#2  0x000055e4d08b101b in inline_mysql_cond_wait (that=0x7ff9c0ff8e10, mutex=0x7ff9c0ff8e50, src_file=0x55e4d0ffd110 "/data/src/10.3/storage/innobase/handler/ha_innodb.cc", src_line=317) at /data/src/10.3/include/mysql/psi/mysql_thread.h:1149
#3  0x000055e4d08b60fc in thd_destructor_proxy () at /data/src/10.3/storage/innobase/handler/ha_innodb.cc:317
#4  0x00007ff9ff17d494 in start_thread (arg=0x7ff9c0ff9700) at pthread_create.c:333
#5  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 11 (Thread 0x7ff9fc10b700 (LWP 1109)):
#0  do_sigwait (set=<optimized out>, set@entry=0x7ff9fc10ae80, sig=sig@entry=0x7ff9fc10ae50) at ../sysdeps/unix/sysv/linux/sigwait.c:64
#1  0x00007ff9ff186ced in __sigwait (set=0x7ff9fc10ae80, sig=0x7ff9fc10ae50) at ../sysdeps/unix/sysv/linux/sigwait.c:96
#2  0x000055e4d01d4f2d in signal_hand (arg=0x0) at /data/src/10.3/sql/mysqld.cc:3521
#3  0x00007ff9ff17d494 in start_thread (arg=0x7ff9fc10b700) at pthread_create.c:333
#4  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7ff9fc0c1700 (LWP 1111)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000055e4d0d73533 in safe_cond_wait (cond=0x55e4d19eafc0 <COND_slave_background>, mp=0x55e4d19ee340 <LOCK_slave_background>, file=0x55e4d0e11c40 "/data/src/10.3/include/mysql/psi/mysql_thread.h", line=1149) at /data/src/10.3/mysys/thr_mutex.c:492
#2  0x000055e4d01fdc26 in inline_mysql_cond_wait (that=0x55e4d19eafc0 <COND_slave_background>, mutex=0x55e4d19ee340 <LOCK_slave_background>, src_file=0x55e4d0e124c5 "/data/src/10.3/sql/slave.cc", src_line=506) at /data/src/10.3/include/mysql/psi/mysql_thread.h:1149
#3  0x000055e4d01fefd1 in handle_slave_background (arg=0x0) at /data/src/10.3/sql/slave.cc:506
#4  0x00007ff9ff17d494 in start_thread (arg=0x7ff9fc0c1700) at pthread_create.c:333
#5  0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7ff9fc077700 (LWP 1114)):
#0  0x00007ff9fd55a4ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000055e4d0dd426c in vio_io_wait (vio=0x55e4d33d2420, event=VIO_IO_EVENT_READ, timeout=28800000) at /data/src/10.3/vio/viosocket.c:974
#2  0x000055e4d0dd292a in vio_socket_io_wait (vio=0x55e4d33d2420, event=VIO_IO_EVENT_READ) at /data/src/10.3/vio/viosocket.c:119
#3  0x000055e4d0dd49a8 in vio_ssl_read (vio=0x55e4d33d2420, buf=0x7ff98c00b040 "\a", size=4) at /data/src/10.3/vio/viossl.c:155
#4  0x000055e4d01e3fd7 in my_real_read (net=0x7ff98c000dc8, complen=0x7ff9fc076da0, header=1 '\001') at /data/src/10.3/sql/net_serv.cc:952
#5  0x000055e4d01e4849 in my_net_read_packet_reallen (net=0x7ff98c000dc8, read_from_server=1 '\001', reallen=0x7ff9fc076e08) at /data/src/10.3/sql/net_serv.cc:1233
#6  0x000055e4d01e47fd in my_net_read_packet (net=0x7ff98c000dc8, read_from_server=1 '\001') at /data/src/10.3/sql/net_serv.cc:1217
#7  0x000055e4d02c1d86 in do_command (thd=0x7ff98c000b00) at /data/src/10.3/sql/sql_parse.cc:1251
#8  0x000055e4d041ab9c in do_handle_one_connection (connect=0x55e4d33cafa0) at /data/src/10.3/sql/sql_connect.cc:1420
#9  0x000055e4d041a929 in handle_one_connection (arg=0x55e4d33cafa0) at /data/src/10.3/sql/sql_connect.cc:1326
#10 0x00007ff9ff17d494 in start_thread (arg=0x7ff9fc077700) at pthread_create.c:333
#11 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7ff9e5d81700 (LWP 1118)):
#0  0x00007ff9fd55a4ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000055e4d0dd426c in vio_io_wait (vio=0x55e4d3370ab0, event=VIO_IO_EVENT_READ, timeout=28800000) at /data/src/10.3/vio/viosocket.c:974
#2  0x000055e4d0dd292a in vio_socket_io_wait (vio=0x55e4d3370ab0, event=VIO_IO_EVENT_READ) at /data/src/10.3/vio/viosocket.c:119
#3  0x000055e4d0dd49a8 in vio_ssl_read (vio=0x55e4d3370ab0, buf=0x7ff99000b040 "\001", size=4) at /data/src/10.3/vio/viossl.c:155
#4  0x000055e4d01e3fd7 in my_real_read (net=0x7ff990000dc8, complen=0x7ff9e5d80da0, header=1 '\001') at /data/src/10.3/sql/net_serv.cc:952
#5  0x000055e4d01e4849 in my_net_read_packet_reallen (net=0x7ff990000dc8, read_from_server=1 '\001', reallen=0x7ff9e5d80e08) at /data/src/10.3/sql/net_serv.cc:1233
#6  0x000055e4d01e47fd in my_net_read_packet (net=0x7ff990000dc8, read_from_server=1 '\001') at /data/src/10.3/sql/net_serv.cc:1217
#7  0x000055e4d02c1d86 in do_command (thd=0x7ff990000b00) at /data/src/10.3/sql/sql_parse.cc:1251
#8  0x000055e4d041ab9c in do_handle_one_connection (connect=0x55e4d33cafa0) at /data/src/10.3/sql/sql_connect.cc:1420
#9  0x000055e4d041a929 in handle_one_connection (arg=0x55e4d33cafa0) at /data/src/10.3/sql/sql_connect.cc:1326
#10 0x00007ff9ff17d494 in start_thread (arg=0x7ff9e5d81700) at pthread_create.c:333
#11 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7ff9e5d37700 (LWP 1119)):
#0  0x00007ff9fd55a4ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000055e4d0dd426c in vio_io_wait (vio=0x55e4d336a820, event=VIO_IO_EVENT_READ, timeout=28800000) at /data/src/10.3/vio/viosocket.c:974
#2  0x000055e4d0dd292a in vio_socket_io_wait (vio=0x55e4d336a820, event=VIO_IO_EVENT_READ) at /data/src/10.3/vio/viosocket.c:119
#3  0x000055e4d0dd49a8 in vio_ssl_read (vio=0x55e4d336a820, buf=0x7ff98400b040 "2", size=4) at /data/src/10.3/vio/viossl.c:155
#4  0x000055e4d01e3fd7 in my_real_read (net=0x7ff984000dc8, complen=0x7ff9e5d36da0, header=1 '\001') at /data/src/10.3/sql/net_serv.cc:952
#5  0x000055e4d01e4849 in my_net_read_packet_reallen (net=0x7ff984000dc8, read_from_server=1 '\001', reallen=0x7ff9e5d36e08) at /data/src/10.3/sql/net_serv.cc:1233
#6  0x000055e4d01e47fd in my_net_read_packet (net=0x7ff984000dc8, read_from_server=1 '\001') at /data/src/10.3/sql/net_serv.cc:1217
#7  0x000055e4d02c1d86 in do_command (thd=0x7ff984000b00) at /data/src/10.3/sql/sql_parse.cc:1251
#8  0x000055e4d041ab9c in do_handle_one_connection (connect=0x55e4d333be10) at /data/src/10.3/sql/sql_connect.cc:1420
#9  0x000055e4d041a929 in handle_one_connection (arg=0x55e4d333be10) at /data/src/10.3/sql/sql_connect.cc:1326
#10 0x00007ff9ff17d494 in start_thread (arg=0x7ff9e5d37700) at pthread_create.c:333
#11 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7ff9e5ced700 (LWP 1120)):
#0  0x00007ff9fd55a4ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000055e4d0dd426c in vio_io_wait (vio=0x55e4d336abd0, event=VIO_IO_EVENT_READ, timeout=28800000) at /data/src/10.3/vio/viosocket.c:974
#2  0x000055e4d0dd292a in vio_socket_io_wait (vio=0x55e4d336abd0, event=VIO_IO_EVENT_READ) at /data/src/10.3/vio/viosocket.c:119
#3  0x000055e4d0dd49a8 in vio_ssl_read (vio=0x55e4d336abd0, buf=0x7ff97800b040 ".", size=4) at /data/src/10.3/vio/viossl.c:155
#4  0x000055e4d01e3fd7 in my_real_read (net=0x7ff978000dc8, complen=0x7ff9e5cecda0, header=1 '\001') at /data/src/10.3/sql/net_serv.cc:952
#5  0x000055e4d01e4849 in my_net_read_packet_reallen (net=0x7ff978000dc8, read_from_server=1 '\001', reallen=0x7ff9e5cece08) at /data/src/10.3/sql/net_serv.cc:1233
#6  0x000055e4d01e47fd in my_net_read_packet (net=0x7ff978000dc8, read_from_server=1 '\001') at /data/src/10.3/sql/net_serv.cc:1217
#7  0x000055e4d02c1d86 in do_command (thd=0x7ff978000b00) at /data/src/10.3/sql/sql_parse.cc:1251
#8  0x000055e4d041ab9c in do_handle_one_connection (connect=0x55e4d333be10) at /data/src/10.3/sql/sql_connect.cc:1420
#9  0x000055e4d041a929 in handle_one_connection (arg=0x55e4d333be10) at /data/src/10.3/sql/sql_connect.cc:1326
#10 0x00007ff9ff17d494 in start_thread (arg=0x7ff9e5ced700) at pthread_create.c:333
#11 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7ff9e5ca3700 (LWP 1121)):
#0  0x00007ff9fd55a4ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000055e4d0dd426c in vio_io_wait (vio=0x55e4d336af90, event=VIO_IO_EVENT_READ, timeout=28800000) at /data/src/10.3/vio/viosocket.c:974
#2  0x000055e4d0dd292a in vio_socket_io_wait (vio=0x55e4d336af90, event=VIO_IO_EVENT_READ) at /data/src/10.3/vio/viosocket.c:119
#3  0x000055e4d0dd49a8 in vio_ssl_read (vio=0x55e4d336af90, buf=0x7ff97c00b040 "3", size=4) at /data/src/10.3/vio/viossl.c:155
#4  0x000055e4d01e3fd7 in my_real_read (net=0x7ff97c000dc8, complen=0x7ff9e5ca2da0, header=1 '\001') at /data/src/10.3/sql/net_serv.cc:952
#5  0x000055e4d01e4849 in my_net_read_packet_reallen (net=0x7ff97c000dc8, read_from_server=1 '\001', reallen=0x7ff9e5ca2e08) at /data/src/10.3/sql/net_serv.cc:1233
#6  0x000055e4d01e47fd in my_net_read_packet (net=0x7ff97c000dc8, read_from_server=1 '\001') at /data/src/10.3/sql/net_serv.cc:1217
#7  0x000055e4d02c1d86 in do_command (thd=0x7ff97c000b00) at /data/src/10.3/sql/sql_parse.cc:1251
#8  0x000055e4d041ab9c in do_handle_one_connection (connect=0x55e4d3370e60) at /data/src/10.3/sql/sql_connect.cc:1420
#9  0x000055e4d041a929 in handle_one_connection (arg=0x55e4d3370e60) at /data/src/10.3/sql/sql_connect.cc:1326
#10 0x00007ff9ff17d494 in start_thread (arg=0x7ff9e5ca3700) at pthread_create.c:333
#11 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7ff9e5c59700 (LWP 1122)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000055e4d099513a in os_event::wait (this=0x55e4d309e400) at /data/src/10.3/storage/innobase/os/os0event.cc:166
#2  0x000055e4d0994b49 in os_event::wait_low (this=0x55e4d309e400, reset_sig_count=2) at /data/src/10.3/storage/innobase/os/os0event.cc:336
#3  0x000055e4d0994eef in os_event_wait_low (event=0x55e4d309e400, reset_sig_count=2) at /data/src/10.3/storage/innobase/os/os0event.cc:535
#4  0x000055e4d0aa5b08 in sync_array_wait_event (arr=0x55e4d2975530, cell=@0x7ff9e5c54788: 0x55e4d2975840) at /data/src/10.3/storage/innobase/sync/sync0arr.cc:475
#5  0x000055e4d0aa92dd in rw_lock_x_lock_func (lock=0x55e4d309e340, pass=0, file_name=0x55e4d10e66c8 "/data/src/10.3/storage/innobase/include/btr0sea.ic", line=114) at /data/src/10.3/storage/innobase/sync/sync0rw.cc:767
#6  0x000055e4d0b4eb5e in pfs_rw_lock_x_lock_func (lock=0x55e4d309e340, pass=0, file_name=0x55e4d10e66c8 "/data/src/10.3/storage/innobase/include/btr0sea.ic", line=114) at /data/src/10.3/storage/innobase/include/sync0rw.ic:573
#7  0x000055e4d0b52b9e in btr_search_x_lock_all () at /data/src/10.3/storage/innobase/include/btr0sea.ic:114
#8  0x000055e4d0b539be in btr_search_enable () at /data/src/10.3/storage/innobase/btr/btr0sea.cc:438
#9  0x000055e4d0908226 in ha_innobase::commit_inplace_alter_table (this=0x7ff97014a5a8, altered_table=0x7ff97012be90, ha_alter_info=0x7ff9e5c55570, commit=true) at /data/src/10.3/storage/innobase/handler/handler0alter.cc:9564
#10 0x000055e4d059b3da in handler::ha_commit_inplace_alter_table (this=0x7ff97014a5a8, altered_table=0x7ff97012be90, ha_alter_info=0x7ff9e5c55570, commit=true) at /data/src/10.3/sql/handler.cc:4251
#11 0x000055e4d039ac98 in mysql_inplace_alter_table (thd=0x7ff970000b00, table_list=0x7ff970029ed0, table=0x7ff9701293d0, altered_table=0x7ff97012be90, ha_alter_info=0x7ff9e5c55570, inplace_supported=HA_ALTER_INPLACE_NO_LOCK_AFTER_PREPARE, target_mdl_request=0x7ff9e5c555e0, alter_ctx=0x7ff9e5c561a0) at /data/src/10.3/sql/sql_table.cc:7261
#12 0x000055e4d039ff7c in mysql_alter_table (thd=0x7ff970000b00, new_db=0x7ff97002a4e0 "test", new_name=0x0, create_info=0x7ff9e5c56db0, table_list=0x7ff970029ed0, alter_info=0x7ff9e5c56d00, order_num=0, order=0x0, ignore=false) at /data/src/10.3/sql/sql_table.cc:9237
#13 0x000055e4d0420023 in Sql_cmd_alter_table::execute (this=0x7ff97002a738, thd=0x7ff970000b00) at /data/src/10.3/sql/sql_alter.cc:331
#14 0x000055e4d02d14da in mysql_execute_command (thd=0x7ff970000b00) at /data/src/10.3/sql/sql_parse.cc:6245
#15 0x000055e4d02d5ede in mysql_parse (thd=0x7ff970000b00, rawbuf=0x7ff970029d48 "ALTER TABLE t20 ADD COLUMN IF NOT EXISTS vcol7 DATE AS ( tcol4 ) VIRTUAL, LOCK=SHARED /* QNO 11141 CON_ID 17 */", length=111, parser_state=0x7ff9e5c58660, is_com_multi=false, is_next_command=false) at /data/src/10.3/sql/sql_parse.cc:7959
#16 0x000055e4d02c381a in dispatch_command (command=COM_QUERY, thd=0x7ff970000b00, packet=0x7ff97000b041 "ALTER TABLE t20 ADD COLUMN IF NOT EXISTS vcol7 DATE AS ( tcol4 ) VIRTUAL, LOCK=SHARED /* QNO 11141 CON_ID 17 */", packet_length=111, is_com_multi=false, is_next_command=false) at /data/src/10.3/sql/sql_parse.cc:1828
#17 0x000055e4d02c223b in do_command (thd=0x7ff970000b00) at /data/src/10.3/sql/sql_parse.cc:1370
#18 0x000055e4d041ab9c in do_handle_one_connection (connect=0x55e4d3370e60) at /data/src/10.3/sql/sql_connect.cc:1420
#19 0x000055e4d041a929 in handle_one_connection (arg=0x55e4d3370e60) at /data/src/10.3/sql/sql_connect.cc:1326
#20 0x00007ff9ff17d494 in start_thread (arg=0x7ff9e5c59700) at pthread_create.c:333
#21 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7ff9e5c0f700 (LWP 1123)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000055e4d099513a in os_event::wait (this=0x55e4d36213a0) at /data/src/10.3/storage/innobase/os/os0event.cc:166
#2  0x000055e4d0994b49 in os_event::wait_low (this=0x55e4d36213a0, reset_sig_count=3533) at /data/src/10.3/storage/innobase/os/os0event.cc:336
#3  0x000055e4d0994eef in os_event_wait_low (event=0x55e4d36213a0, reset_sig_count=3533) at /data/src/10.3/storage/innobase/os/os0event.cc:535
#4  0x000055e4d0aa5b08 in sync_array_wait_event (arr=0x55e4d2975530, cell=@0x7ff9e5c0a960: 0x55e4d2975740) at /data/src/10.3/storage/innobase/sync/sync0arr.cc:475
#5  0x000055e4d08e5862 in TTASEventMutex<GenericPolicy>::enter (this=0x55e4d3621290, max_spins=60, max_delay=6, filename=0x55e4d0ffd110 "/data/src/10.3/storage/innobase/handler/ha_innodb.cc", line=5937) at /data/src/10.3/storage/innobase/include/ib0mutex.h:516
#6  0x000055e4d08e3e4b in PolicyMutex<TTASEventMutex<GenericPolicy> >::enter (this=0x55e4d3621290, n_spins=30, n_delay=6, name=0x55e4d0ffd110 "/data/src/10.3/storage/innobase/handler/ha_innodb.cc", line=5937) at /data/src/10.3/storage/innobase/include/ib0mutex.h:635
#7  0x000055e4d08bebfa in innobase_build_index_translation (table=0x7ff97411c040, ib_table=0x7ff9740c2fd8, share=0x7ff9740fb610) at /data/src/10.3/storage/innobase/handler/ha_innodb.cc:5937
#8  0x000055e4d08bfc94 in ha_innobase::open (this=0x7ff9740ba078, name=0x7ff9740cc508 "./test/t17") at /data/src/10.3/storage/innobase/handler/ha_innodb.cc:6388
#9  0x000055e4d05962fa in handler::ha_open (this=0x7ff9740ba078, table_arg=0x7ff97411c040, name=0x7ff9740cc508 "./test/t17", mode=2, test_if_locked=18, mem_root=0x0) at /data/src/10.3/sql/handler.cc:2515
#10 0x000055e4d03d1d0e in open_table_from_share (thd=0x7ff974000b00, share=0x7ff9740cbfe8, alias=0x7ff974029e78 "t17", db_stat=33, prgflag=8, ha_open_flags=18, outparam=0x7ff97411c040, is_create_table=false) at /data/src/10.3/sql/table.cc:3339
#11 0x000055e4d024621b in open_table (thd=0x7ff974000b00, table_list=0x7ff974029e80, ot_ctx=0x7ff9e5c0b400) at /data/src/10.3/sql/sql_base.cc:1907
#12 0x000055e4d039add2 in mysql_inplace_alter_table (thd=0x7ff974000b00, table_list=0x7ff974029e80, table=0x0, altered_table=0x7ff97411c040, ha_alter_info=0x7ff9e5c0b570, inplace_supported=HA_ALTER_INPLACE_NO_LOCK_AFTER_PREPARE, target_mdl_request=0x7ff9e5c0b5e0, alter_ctx=0x7ff9e5c0c1a0) at /data/src/10.3/sql/sql_table.cc:7293
#13 0x000055e4d039ff7c in mysql_alter_table (thd=0x7ff974000b00, new_db=0x7ff97402a490 "test", new_name=0x0, create_info=0x7ff9e5c0cdb0, table_list=0x7ff974029e80, alter_info=0x7ff9e5c0cd00, order_num=0, order=0x0, ignore=false) at /data/src/10.3/sql/sql_table.cc:9237
#14 0x000055e4d0420023 in Sql_cmd_alter_table::execute (this=0x7ff97402a4a0, thd=0x7ff974000b00) at /data/src/10.3/sql/sql_alter.cc:331
#15 0x000055e4d02d14da in mysql_execute_command (thd=0x7ff974000b00) at /data/src/10.3/sql/sql_parse.cc:6245
#16 0x000055e4d02d5ede in mysql_parse (thd=0x7ff974000b00, rawbuf=0x7ff974029d48 "ALTER TABLE t17 FORCE, ALGORITHM=INPLACE /* QNO 11620 CON_ID 18 */", length=66, parser_state=0x7ff9e5c0e660, is_com_multi=false, is_next_command=false) at /data/src/10.3/sql/sql_parse.cc:7959
#17 0x000055e4d02c381a in dispatch_command (command=COM_QUERY, thd=0x7ff974000b00, packet=0x7ff97400b041 "ALTER TABLE t17 FORCE, ALGORITHM=INPLACE /* QNO 11620 CON_ID 18 */", packet_length=66, is_com_multi=false, is_next_command=false) at /data/src/10.3/sql/sql_parse.cc:1828
#18 0x000055e4d02c223b in do_command (thd=0x7ff974000b00) at /data/src/10.3/sql/sql_parse.cc:1370
#19 0x000055e4d041ab9c in do_handle_one_connection (connect=0x55e4d3370e60) at /data/src/10.3/sql/sql_connect.cc:1420
#20 0x000055e4d041a929 in handle_one_connection (arg=0x55e4d3370e60) at /data/src/10.3/sql/sql_connect.cc:1326
#21 0x00007ff9ff17d494 in start_thread (arg=0x7ff9e5c0f700) at pthread_create.c:333
#22 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7ff9e5bc5700 (LWP 1124)):
#0  0x00007ff9fd55a4ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000055e4d0dd426c in vio_io_wait (vio=0x55e4d28b2550, event=VIO_IO_EVENT_READ, timeout=28800000) at /data/src/10.3/vio/viosocket.c:974
#2  0x000055e4d0dd292a in vio_socket_io_wait (vio=0x55e4d28b2550, event=VIO_IO_EVENT_READ) at /data/src/10.3/vio/viosocket.c:119
#3  0x000055e4d0dd49a8 in vio_ssl_read (vio=0x55e4d28b2550, buf=0x7ff96800b040 "*", size=4) at /data/src/10.3/vio/viossl.c:155
#4  0x000055e4d01e3fd7 in my_real_read (net=0x7ff968000dc8, complen=0x7ff9e5bc4da0, header=1 '\001') at /data/src/10.3/sql/net_serv.cc:952
#5  0x000055e4d01e4849 in my_net_read_packet_reallen (net=0x7ff968000dc8, read_from_server=1 '\001', reallen=0x7ff9e5bc4e08) at /data/src/10.3/sql/net_serv.cc:1233
#6  0x000055e4d01e47fd in my_net_read_packet (net=0x7ff968000dc8, read_from_server=1 '\001') at /data/src/10.3/sql/net_serv.cc:1217
#7  0x000055e4d02c1d86 in do_command (thd=0x7ff968000b00) at /data/src/10.3/sql/sql_parse.cc:1251
#8  0x000055e4d041ab9c in do_handle_one_connection (connect=0x55e4d3370e60) at /data/src/10.3/sql/sql_connect.cc:1420
#9  0x000055e4d041a929 in handle_one_connection (arg=0x55e4d3370e60) at /data/src/10.3/sql/sql_connect.cc:1326
#10 0x00007ff9ff17d494 in start_thread (arg=0x7ff9e5bc5700) at pthread_create.c:333
#11 0x00007ff9fd56393f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7ff9ff596b80 (LWP 1071)):
#0  0x00007ff9fd55a4ed in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x000055e4d01daf05 in handle_connections_sockets () at /data/src/10.3/sql/mysqld.cc:6668
#2  0x000055e4d01da1c7 in mysqld_main (argc=47, argv=0x55e4d2833288) at /data/src/10.3/sql/mysqld.cc:6133
#3  0x000055e4d01ce7b0 in main (argc=27, argv=0x7ffc07921a88) at /data/src/10.3/sql/main.cc:25