root@acceptance-replication-ubuntu1404-node1:~# ps aux | grep mysqld root 5315 0.0 0.2 21128 3216 ? S Jun25 0:00 /bin/bash /usr/bin/mysqld_safe mysql 5550 0.0 11.5 2581720 129840 ? Sl Jun25 0:30 /usr/sbin/mysqld --basedir=/usr/ --datadir=/var/lib/mysql --plugin-dir=/usr//lib/mysql/plugin --user=mysql --log-error=/var/log/mysql/mysqld.log --pid-file=/var/lib/mysql/mysql.pid --socket=/var/lib/mysql/mysql.sock --port=3306 root 9214 0.0 0.1 13420 1584 ? S+ 07:06 0:00 grep --color=auto mysqld root@acceptance-replication-ubuntu1404-node1:~# gdb --pid=5550 /usr/sbin/mysqld GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.3) 7.7.1 Copyright (C) 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/sbin/mysqld...(no debugging symbols found)...done. Attaching to program: /usr/sbin/mysqld, process 5550 Reading symbols from /lib/x86_64-linux-gnu/libaio.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libaio.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libnuma.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libnuma.so.1 Reading symbols from /lib/x86_64-linux-gnu/libz.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libz.so.1 Reading symbols from /lib/x86_64-linux-gnu/libcrypt.so.1...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libcrypt-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libcrypt.so.1 Reading symbols from /lib/x86_64-linux-gnu/libsystemd-daemon.so.0...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libsystemd-daemon.so.0 Reading symbols from /lib/x86_64-linux-gnu/libssl.so.1.0.0...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libssl.so.1.0.0 Reading symbols from /lib/x86_64-linux-gnu/libcrypto.so.1.0.0...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 Reading symbols from /lib/x86_64-linux-gnu/libdl.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libdl-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libdl.so.2 Reading symbols from /lib/x86_64-linux-gnu/libpthread.so.0...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libpthread-2.19.so...done. done. [New LWP 9191] [New LWP 9190] [New LWP 6516] [New LWP 5584] [New LWP 5581] [New LWP 5580] [New LWP 5579] [New LWP 5578] [New LWP 5577] [New LWP 5576] [New LWP 5575] [New LWP 5574] [New LWP 5573] [New LWP 5572] [New LWP 5571] [New LWP 5570] [New LWP 5569] [New LWP 5568] [New LWP 5567] [New LWP 5566] [New LWP 5565] [New LWP 5563] [New LWP 5562] [New LWP 5561] [New LWP 5560] [New LWP 5559] [New LWP 5558] [New LWP 5557] [New LWP 5556] [New LWP 5555] [New LWP 5554] [New LWP 5553] [New LWP 5552] [New LWP 5551] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Loaded symbols for /lib/x86_64-linux-gnu/libpthread.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libstdc++.so.6...Reading symbols from /usr/lib/debug//usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19...done. done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libstdc++.so.6 Reading symbols from /lib/x86_64-linux-gnu/libm.so.6...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libm-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libm.so.6 Reading symbols from /lib/x86_64-linux-gnu/libc.so.6...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libc-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libc.so.6 Reading symbols from /lib64/ld-linux-x86-64.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/ld-2.19.so...done. done. Loaded symbols for /lib64/ld-linux-x86-64.so.2 Reading symbols from /lib/x86_64-linux-gnu/librt.so.1...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/librt-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/librt.so.1 Reading symbols from /lib/x86_64-linux-gnu/libgcc_s.so.1...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libgcc_s.so.1...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libgcc_s.so.1 Reading symbols from /lib/x86_64-linux-gnu/libnss_compat.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libnss_compat-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libnss_compat.so.2 Reading symbols from /lib/x86_64-linux-gnu/libnsl.so.1...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libnsl-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libnsl.so.1 Reading symbols from /lib/x86_64-linux-gnu/libnss_nis.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libnss_nis-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libnss_nis.so.2 Reading symbols from /lib/x86_64-linux-gnu/libnss_files.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libnss_files-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libnss_files.so.2 0x00007f148a3f9c9d in poll () at ../sysdeps/unix/syscall-template.S:81 81 ../sysdeps/unix/syscall-template.S: No such file or directory. (gdb) thread apply all back Thread 35 (Thread 0x7f14886ae700 (LWP 5551)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x0000556edf30a627 in ?? () #2 0x00007f148ace4184 in start_thread (arg=0x7f14886ae700) at pthread_create.c:312 #3 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 34 (Thread 0x7f14860de700 (LWP 5552)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x0000556edf2232f6 in ?? () #2 0x0000556edf21ac5e in ?? () #3 0x00007f148ace4184 in start_thread (arg=0x7f14860de700) at pthread_create.c:312 #4 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 33 (Thread 0x7f148488c700 (LWP 5553)): #0 0x00007f148bf9a58a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000556edefe5bdb in ?? () #2 0x0000556edefe61a2 in ?? () #3 0x0000556edefed4b1 in ?? () #4 0x0000556edf176386 in ?? () #5 0x0000556edf081198 in ?? () #6 0x00007f148ace4184 in start_thread (arg=0x7f148488c700) at pthread_create.c:312 #7 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 32 (Thread 0x7f14470ff700 (LWP 5554)): #0 0x00007f148bf9a58a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000556edefe5bdb in ?? () #2 0x0000556edefe61a2 in ?? () #3 0x0000556edefed4b1 in ?? () #4 0x0000556edf176386 in ?? () #5 0x0000556edf081198 in ?? () #6 0x00007f148ace4184 in start_thread (arg=0x7f14470ff700) at pthread_create.c:312 #7 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 31 (Thread 0x7f14468fe700 (LWP 5555)): #0 0x00007f148bf9a58a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000556edefe5bdb in ?? () #2 0x0000556edefe61a2 in ?? () #3 0x0000556edefed4b1 in ?? () #4 0x0000556edf176386 in ?? () #5 0x0000556edf081198 in ?? () #6 0x00007f148ace4184 in start_thread (arg=0x7f14468fe700) at pthread_create.c:312 #7 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 30 (Thread 0x7f14460fd700 (LWP 5556)): #0 0x00007f148bf9a58a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000556edefe5bdb in ?? () #2 0x0000556edefe61a2 in ?? () #3 0x0000556edefed4b1 in ?? () ---Type to continue, or q to quit--- #4 0x0000556edf176386 in ?? () #5 0x0000556edf081198 in ?? () #6 0x00007f148ace4184 in start_thread (arg=0x7f14460fd700) at pthread_create.c:312 #7 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 29 (Thread 0x7f14458fc700 (LWP 5557)): #0 0x00007f148bf9a58a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000556edefe5bdb in ?? () #2 0x0000556edefe61a2 in ?? () #3 0x0000556edefed4b1 in ?? () #4 0x0000556edf176386 in ?? () #5 0x0000556edf081198 in ?? () #6 0x00007f148ace4184 in start_thread (arg=0x7f14458fc700) at pthread_create.c:312 #7 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 28 (Thread 0x7f14450fb700 (LWP 5558)): #0 0x00007f148bf9a58a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000556edefe5bdb in ?? () #2 0x0000556edefe61a2 in ?? () #3 0x0000556edefed4b1 in ?? () #4 0x0000556edf176386 in ?? () #5 0x0000556edf081198 in ?? () #6 0x00007f148ace4184 in start_thread (arg=0x7f14450fb700) at pthread_create.c:312 #7 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 27 (Thread 0x7f14448fa700 (LWP 5559)): #0 0x00007f148bf9a58a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000556edefe5bdb in ?? () #2 0x0000556edefe61a2 in ?? () #3 0x0000556edefed4b1 in ?? () #4 0x0000556edf176386 in ?? () #5 0x0000556edf081198 in ?? () #6 0x00007f148ace4184 in start_thread (arg=0x7f14448fa700) at pthread_create.c:312 #7 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 26 (Thread 0x7f14440f9700 (LWP 5560)): #0 0x00007f148bf9a58a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000556edefe5bdb in ?? () #2 0x0000556edefe61a2 in ?? () #3 0x0000556edefed4b1 in ?? () #4 0x0000556edf176386 in ?? () #5 0x0000556edf081198 in ?? () #6 0x00007f148ace4184 in start_thread (arg=0x7f14440f9700) at pthread_create.c:312 #7 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 25 (Thread 0x7f14438f8700 (LWP 5561)): #0 0x00007f148bf9a58a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000556edefe5bdb in ?? () #2 0x0000556edefe61a2 in ?? () #3 0x0000556edefed4b1 in ?? () #4 0x0000556edf176386 in ?? () ---Type to continue, or q to quit--- #5 0x0000556edf081198 in ?? () #6 0x00007f148ace4184 in start_thread (arg=0x7f14438f8700) at pthread_create.c:312 #7 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 24 (Thread 0x7f14430f7700 (LWP 5562)): #0 0x00007f148bf9a58a in ?? () from /lib/x86_64-linux-gnu/libaio.so.1 #1 0x0000556edefe5bdb in ?? () #2 0x0000556edefe61a2 in ?? () #3 0x0000556edefed4b1 in ?? () #4 0x0000556edf176386 in ?? () #5 0x0000556edf081198 in ?? () #6 0x00007f148ace4184 in start_thread (arg=0x7f14430f7700) at pthread_create.c:312 #7 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 23 (Thread 0x7f14428f6700 (LWP 5563)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x0000556edefee873 in ?? () #2 0x0000556edefeeaa1 in ?? () #3 0x0000556edf12000d in ?? () #4 0x00007f148ace4184 in start_thread (arg=0x7f14428f6700) at pthread_create.c:312 #5 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 22 (Thread 0x7f14420f5700 (LWP 5565)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x0000556edefee873 in ?? () #2 0x0000556edefeeaa1 in ?? () #3 0x0000556edefc297f in ?? () #4 0x00007f148ace4184 in start_thread (arg=0x7f14420f5700) at pthread_create.c:312 #5 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 21 (Thread 0x7f14418f4700 (LWP 5566)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x0000556edefee873 in ?? () #2 0x0000556edefeeaa1 in ?? () #3 0x0000556edf07dc1c in ?? () #4 0x00007f148ace4184 in start_thread (arg=0x7f14418f4700) at pthread_create.c:312 #5 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 20 (Thread 0x7f14410f3700 (LWP 5567)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x0000556edefee873 in ?? () #2 0x0000556edefeeaa1 in ?? () #3 0x0000556edf07d550 in ?? () #4 0x00007f148ace4184 in start_thread (arg=0x7f14410f3700) at pthread_create.c:312 #5 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 19 (Thread 0x7f14408f2700 (LWP 5568)): ---Type to continue, or q to quit--- #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x0000556edefee873 in ?? () #2 0x0000556edefeeaa1 in ?? () #3 0x0000556edf1682b3 in ?? () #4 0x00007f148ace4184 in start_thread (arg=0x7f14408f2700) at pthread_create.c:312 #5 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 18 (Thread 0x7f143bfff700 (LWP 5569)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x0000556edefee873 in ?? () #2 0x0000556edefeeaa1 in ?? () #3 0x0000556edf0cc776 in ?? () #4 0x0000556edf1b2df5 in ?? () #5 0x00007f148ace4184 in start_thread (arg=0x7f143bfff700) at pthread_create.c:312 #6 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 17 (Thread 0x7f14852ae700 (LWP 5570)): #0 0x00007f148acebb9d in nanosleep () at ../sysdeps/unix/syscall-template.S:81 #1 0x0000556edefeefb0 in ?? () #2 0x0000556edf07ec28 in ?? () #3 0x00007f148ace4184 in start_thread (arg=0x7f14852ae700) at pthread_create.c:312 #4 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 16 (Thread 0x7f143b7fe700 (LWP 5571)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000556edefeeda1 in ?? () #2 0x0000556edf07ffcc in ?? () #3 0x00007f148ace4184 in start_thread (arg=0x7f143b7fe700) at pthread_create.c:312 #4 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 15 (Thread 0x7f143affd700 (LWP 5572)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000556edefeeda1 in ?? () #2 0x0000556edf079c0b in ?? () #3 0x0000556edf07f3fc in ?? () #4 0x00007f148ace4184 in start_thread (arg=0x7f143affd700) at pthread_create.c:312 #5 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 14 (Thread 0x7f143a7fc700 (LWP 5573)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000556edefeeda1 in ?? () #2 0x0000556edf079c0b in ?? () #3 0x0000556edf07f3fc in ?? () #4 0x00007f148ace4184 in start_thread (arg=0x7f143a7fc700) at pthread_create.c:312 #5 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 13 (Thread 0x7f1439ffb700 (LWP 5574)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000556edefeeda1 in ?? () ---Type to continue, or q to quit--- #2 0x0000556edf079c0b in ?? () #3 0x0000556edf07f3fc in ?? () #4 0x00007f148ace4184 in start_thread (arg=0x7f1439ffb700) at pthread_create.c:312 #5 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 12 (Thread 0x7f14397fa700 (LWP 5575)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000556edefeeda1 in ?? () #2 0x0000556edf119d47 in ?? () #3 0x00007f148ace4184 in start_thread (arg=0x7f14397fa700) at pthread_create.c:312 #4 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 11 (Thread 0x7f1438ff9700 (LWP 5576)): #0 0x00007f148acebb9d in nanosleep () at ../sysdeps/unix/syscall-template.S:81 #1 0x0000556edefeefb0 in ?? () #2 0x0000556edf102b62 in ?? () #3 0x00007f148ace4184 in start_thread (arg=0x7f1438ff9700) at pthread_create.c:312 #4 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 10 (Thread 0x7f142bfff700 (LWP 5577)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000556edefeeda1 in ?? () #2 0x0000556edf112332 in ?? () #3 0x00007f148ace4184 in start_thread (arg=0x7f142bfff700) at pthread_create.c:312 #4 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 9 (Thread 0x7f142b7fe700 (LWP 5578)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000556edef6e5db in ?? () #2 0x00007f148ace4184 in start_thread (arg=0x7f142b7fe700) at pthread_create.c:312 #3 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 8 (Thread 0x7f14854af700 (LWP 5579)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000556edee8decf in binlog_background_thread () #2 0x00007f148ace4184 in start_thread (arg=0x7f14854af700) at pthread_create.c:312 #3 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 7 (Thread 0x7f1485465700 (LWP 5580)): #0 0x00007f148acec0c1 in do_sigwait (sig=0x7f1485464da0, set=) at ../nptl/sysdeps/unix/sysv/linux/../../../../../sysdeps/unix/sysv/linux/sigwait.c:60 #1 __sigwait (set=0x7f1485464e00, sig=0x7f1485464da0) at ../nptl/sysdeps/unix/sysv/linux/../../../../../sysdeps/unix/sysv/linux/sigwait.c:97 #2 0x0000556edeb1169b in signal_hand () #3 0x00007f148ace4184 in start_thread (arg=0x7f1485465700) at pthread_create.c:312 #4 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 6 (Thread 0x7f148541b700 (LWP 5581)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000556edeb2e623 in handle_slave_background () #2 0x00007f148ace4184 in start_thread (arg=0x7f148541b700) at pthread_create.c:312 ---Type to continue, or q to quit--- #3 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 5 (Thread 0x7f14853d1700 (LWP 5584)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000556edee81f98 in ?? () #2 0x0000556edee8f9b0 in MYSQL_BIN_LOG::reset_logs(THD*, bool, rpl_gtid*, unsigned int, unsigned long) () #3 0x0000556edebf0ad4 in reset_master(THD*, rpl_gtid*, unsigned int, unsigned long) () #4 0x0000556edecc1a28 in reload_acl_and_cache(THD*, unsigned long long, TABLE_LIST*, int*) () #5 0x0000556edebcde45 in mysql_execute_command(THD*) () #6 0x0000556edebd5cc2 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) () #7 0x0000556edebd87cf in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) () #8 0x0000556edebd963e in do_command(THD*) () #9 0x0000556edeca7dba in do_handle_one_connection(CONNECT*) () #10 0x0000556edeca7edd in handle_one_connection () #11 0x00007f148ace4184 in start_thread (arg=0x7f14853d1700) at pthread_create.c:312 #12 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 4 (Thread 0x7f142affd700 (LWP 6516)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x0000556edecf2c55 in Ack_receiver::run() () #2 0x0000556edecf2c89 in ack_receive_handler () #3 0x00007f148ace4184 in start_thread (arg=0x7f142affd700) at pthread_create.c:312 #4 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 3 (Thread 0x7f1485387700 (LWP 9190)): #0 __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135 #1 0x00007f148ace6649 in _L_lock_909 () from /lib/x86_64-linux-gnu/libpthread.so.0 #2 0x00007f148ace6470 in __GI___pthread_mutex_lock (mutex=0x556edfcb1ec8 ) at ../nptl/pthread_mutex_lock.c:79 #3 0x0000556edee82325 in ?? () #4 0x0000556edee8f8fe in MYSQL_BIN_LOG::reset_logs(THD*, bool, rpl_gtid*, unsigned int, unsigned long) () #5 0x0000556edebf0ad4 in reset_master(THD*, rpl_gtid*, unsigned int, unsigned long) () #6 0x0000556edecc1a28 in reload_acl_and_cache(THD*, unsigned long long, TABLE_LIST*, int*) () #7 0x0000556edebcde45 in mysql_execute_command(THD*) () #8 0x0000556edebd5cc2 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) () #9 0x0000556edebd87cf in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) () #10 0x0000556edebd963e in do_command(THD*) () #11 0x0000556edeca7dba in do_handle_one_connection(CONNECT*) () #12 0x0000556edeca7edd in handle_one_connection () #13 0x00007f148ace4184 in start_thread (arg=0x7f1485387700) at pthread_create.c:312 #14 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 2 (Thread 0x7f148533d700 (LWP 9191)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238 #1 0x0000556edeb12d5e in one_thread_per_connection_end(THD*, bool) () #2 0x0000556edeca7d46 in do_handle_one_connection(CONNECT*) () #3 0x0000556edeca7edd in handle_one_connection () #4 0x00007f148ace4184 in start_thread (arg=0x7f148533d700) at pthread_create.c:312 ---Type to continue, or q to quit--- #5 0x00007f148a40703d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 Thread 1 (Thread 0x7f148c3ae780 (LWP 5550)): #0 0x00007f148a3f9c9d in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x0000556edeb19d6f in handle_connections_sockets() () #2 0x0000556edeb1b3a0 in mysqld_main(int, char**) () #3 0x00007f148a32af45 in __libc_start_main (main=0x556edeaf3350
, argc=9, argv=0x7ffeb981d688, init=, fini=, rtld_fini=, stack_end=0x7ffeb981d678) at libc-start.c:287 #4 0x0000556edeb0e3fd in _start () (gdb) (gdb) (gdb) (gdb) (gdb) (gdb) (gdb) (gdb) (gdb) (gdb) (gdb) (gdb) (gdb) (gdb) quit A debugging session is active. Inferior 1 [process 5550] will be detached. Quit anyway? (y or n) y Detaching from program: /usr/sbin/mysqld, process 5550