-- Unit mariadb.service has begun starting up.
Aug 18 12:54:21 myserver mysqld[3991]: 2017-08-18 12:54:21 140585422289152 [Note] /usr/sbin/mysqld (mysqld 10.1.26-MariaDB) starting as process 3991 ...
Aug 18 12:54:21 myserver mysqld[3991]: 2017-08-18 12:54:21 140585422289152 [Note] InnoDB: innodb_empty_free_list_algorithm has been changed to legacy because of small buffer pool size. In order to use bac
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 140585422289152 [Note] InnoDB: Using mutexes to ref count buffer pool pages
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 140585422289152 [Note] InnoDB: The InnoDB memory heap is disabled
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 140585422289152 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 140585422289152 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 140585422289152 [Note] InnoDB: Compressed tables use zlib 1.2.7
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 140585422289152 [Note] InnoDB: Using Linux native AIO
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 140585422289152 [Note] InnoDB: Using SSE crc32 instructions
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 140585422289152 [Note] InnoDB: Initializing buffer pool, size = 128.0M
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 140585422289152 [Note] InnoDB: Completed initialization of buffer pool
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 140585422289152 [Note] InnoDB: Highest supported file format is Barracuda.
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 140585422289152 [ERROR] InnoDB: The page [page id: space=0, page number=7] in file ./ibdata1 cannot be decrypted.
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 140585422289152 [Note] InnoDB: However key management plugin or used key_version 1 is not found or used encryption algorithm or method does not m
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 140585422289152 [ERROR] InnoDB: Ending processing because of a corrupt database page.
Aug 18 12:54:22 myserver mysqld[3991]: 2017-08-18 12:54:22 7fdc9827f900  InnoDB: Assertion failure in thread 140585422289152 in file ha_innodb.cc line 21960
Aug 18 12:54:22 myserver mysqld[3991]: InnoDB: We intentionally generate a memory trap.
Aug 18 12:54:22 myserver mysqld[3991]: InnoDB: Submit a detailed bug report to http://bugs.mysql.com.
Aug 18 12:54:22 myserver mysqld[3991]: InnoDB: If you get repeated assertion failures or crashes, even
Aug 18 12:54:22 myserver mysqld[3991]: InnoDB: immediately after the mysqld startup, there may be
Aug 18 12:54:22 myserver mysqld[3991]: InnoDB: corruption in the InnoDB tablespace. Please refer to
Aug 18 12:54:22 myserver mysqld[3991]: InnoDB: http://dev.mysql.com/doc/refman/5.6/en/forcing-innodb-recovery.html
Aug 18 12:54:22 myserver mysqld[3991]: InnoDB: about forcing recovery.
Aug 18 12:54:22 myserver mysqld[3991]: 170818 12:54:22 [ERROR] mysqld got signal 6 ;
Aug 18 12:54:22 myserver mysqld[3991]: This could be because you hit a bug. It is also possible that this binary
Aug 18 12:54:22 myserver mysqld[3991]: or one of the libraries it was linked against is corrupt, improperly built,
Aug 18 12:54:22 myserver mysqld[3991]: or misconfigured. This error can also be caused by malfunctioning hardware.
Aug 18 12:54:22 myserver mysqld[3991]: To report this bug, see https://mariadb.com/kb/en/reporting-bugs
Aug 18 12:54:22 myserver mysqld[3991]: We will try our best to scrape up some info that will hopefully help
Aug 18 12:54:22 myserver mysqld[3991]: diagnose the problem, but since we have already crashed,
Aug 18 12:54:22 myserver mysqld[3991]: something is definitely wrong and this may fail.
Aug 18 12:54:22 myserver mysqld[3991]: Server version: 10.1.26-MariaDB
Aug 18 12:54:22 myserver mysqld[3991]: key_buffer_size=134217728
Aug 18 12:54:22 myserver mysqld[3991]: read_buffer_size=131072
Aug 18 12:54:22 myserver mysqld[3991]: max_used_connections=0
Aug 18 12:54:22 myserver mysqld[3991]: max_threads=153
Aug 18 12:54:22 myserver mysqld[3991]: thread_count=0
Aug 18 12:54:22 myserver mysqld[3991]: It is possible that mysqld could use up to
Aug 18 12:54:22 myserver mysqld[3991]: key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 937149 K  bytes of memory
Aug 18 12:54:22 myserver mysqld[3991]: Hope that's ok; if not, decrease some variables in the equation.
Aug 18 12:54:22 myserver mysqld[3991]: Thread pointer: 0x0
Aug 18 12:54:22 myserver mysqld[3991]: Attempting backtrace. You can use the following information to find out
Aug 18 12:54:22 myserver mysqld[3991]: where mysqld died. If you see no messages after this, something went
Aug 18 12:54:22 myserver mysqld[3991]: terribly wrong...
Aug 18 12:54:22 myserver mysqld[3991]: stack_bottom = 0x0 thread_stack 0x48400
Aug 18 12:54:22 myserver mysqld[3991]: /usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x7fdc98d5f52e]
Aug 18 12:54:22 myserver mysqld[3991]: /usr/sbin/mysqld(handle_fatal_signal+0x305)[0x7fdc98882ed5]
Aug 18 12:54:22 myserver mysqld[3991]: /lib64/libpthread.so.0(+0xf370)[0x7fdc97e95370]
Aug 18 12:54:22 myserver mysqld[3991]: /lib64/libc.so.6(gsignal+0x37)[0x7fdc961eb1d7]
Aug 18 12:54:22 myserver mysqld[3991]: /lib64/libc.so.6(abort+0x148)[0x7fdc961ec8c8]
Aug 18 12:54:22 myserver mysqld[3991]: /usr/sbin/mysqld(+0x80bca7)[0x7fdc98acfca7]
Aug 18 12:54:22 myserver mysqld[3991]: mysys/stacktrace.c:268(my_print_stacktrace)[0x7fdc98c2729f]
Aug 18 12:54:22 myserver mysqld[3991]: handler/ha_innodb.cc:21960(ib_logf(ib_log_level_t, char const*, ...))[0x7fdc98c40f9f]
Aug 18 12:54:22 myserver mysqld[3991]: buf/buf0buf.cc:4872(buf_page_io_complete(buf_page_t*))[0x7fdc98c1ee09]
Aug 18 12:54:22 myserver mysqld[3991]: dict/dict0boot.cc:58(dict_boot())[0x7fdc98c46ee3]
Aug 18 12:54:22 myserver mysqld[3991]: srv/srv0start.cc:2626(innobase_start_or_create_for_mysql())[0x7fdc98bb3b46]
Aug 18 12:54:22 myserver mysqld[3991]: handler/ha_innodb.cc:4454(innobase_init(void*))[0x7fdc98ad410d]
Aug 18 12:54:22 myserver mysqld[3991]: /usr/sbin/mysqld(_Z24ha_initialize_handlertonP13st_plugin_int+0x64)[0x7fdc98885174]
Aug 18 12:54:22 myserver mysqld[3991]: sql/handler.cc:513(ha_initialize_handlerton(st_plugin_int*))[0x7fdc9870e3c0]
Aug 18 12:54:22 myserver mysqld[3991]: sql/sql_plugin.cc:1683(plugin_init(int*, char**, int))[0x7fdc9870fc5a]
Aug 18 12:54:22 myserver mysqld[3991]: /usr/sbin/mysqld(+0x3a0888)[0x7fdc98664888]
Aug 18 12:54:22 myserver mysqld[3991]: sql/mysqld.cc:5152(init_server_components())[0x7fdc986681d0]
Aug 18 12:54:22 myserver mysqld[3991]: /lib64/libc.so.6(__libc_start_main+0xf5)[0x7fdc961d7b35]
Aug 18 12:54:22 myserver mysqld[3991]: /usr/sbin/mysqld(+0x397ded)[0x7fdc9865bded]
Aug 18 12:54:22 myserver mysqld[3991]: The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
Aug 18 12:54:22 myserver mysqld[3991]: information that should help you find out what is causing the crash.
Aug 18 12:54:22 myserver systemd[1]: mariadb.service: main process exited, code=killed, status=6/ABRT
Aug 18 12:54:22 myserver systemd[1]: Failed to start MariaDB database server.
-- Subject: Unit mariadb.service has failed