юрий белов, попробуйте остановить nginx, httpd и запустить: mysql, httpd, nginx. Либо у Вас памяти нехватает на запуск, либо
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06:27:23 UTC - mysqld got signal 6 ; This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, improperly built, or misconfigured. This error can also be caused by malfunctioning hardware. Attempting to collect some information that could help diagnose the problem. As this is a crash and something is definitely wrong, the information collection process might fail. Please help us make Percona Server better by reporting any bugs at http://bugs.percona.com/
key_buffer_size=12582912 read_buffer_size=131072 max_used_connections=0 max_threads=34 thread_count=0 connection_count=0 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 152160 K bytes of memory Hope that's ok; if not, decrease some variables in the equation.
Thread pointer: 0x7f8b34000900 Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... stack_bottom = 7f8b3a7fbcb0 thread_stack 0x20000 /usr/sbin/mysqld(my_print_stacktrace+0x3b)[0xef5c1b] /usr/sbin/mysqld(handle_fatal_signal+0x471)[0x79b061] /lib64/libpthread.so.0(+0xf6d0)[0x7f8b6d4ae6d0] /lib64/libc.so.6(gsignal+0x37)[0x7f8b6b5af277] /lib64/libc.so.6(abort+0x148)[0x7f8b6b5b0968] /usr/sbin/mysqld[0x7687ec] /usr/sbin/mysqld[0x1250067] /usr/sbin/mysqld(_Z14fseg_free_pagePhmmbP5mtr_t+0x213)[0x12523b3] /usr/sbin/mysqld(_Z12btr_compressP9btr_cur_tmP5mtr_t+0xdcc)[0x1193dcc] /usr/sbin/mysqld(_Z26btr_cur_compress_if_usefulP9btr_cur_tmP5mtr_t+0x1cc)[0x11a1c9c] 2018-07-25T06:27:23.546797Z 0 [Note] InnoDB: Loading buffer pool(s) from /var/lib/mysql/ib_buffer_pool 2018-07-25T06:27:23.547405Z 0 [Note] Plugin 'FEDERATED' is disabled. /usr/sbin/mysqld(_Z26btr_cur_pessimistic_deleteP7dberr_tmP9btr_cur_tmbP5mtr_t+0x659)[0x11a7cf9] /usr/sbin/mysqld[0x10e4855] /usr/sbin/mysqld(_Z14row_purge_stepP9que_thr_t+0x7c1)[0x10e72a1] /usr/sbin/mysqld(_Z15que_run_threadsP9que_thr_t+0x87f)[0x10901cf] /usr/sbin/mysqld(_Z9trx_purgemmb+0x679)[0x1149fc9] /usr/sbin/mysqld(srv_purge_coordinator_thread+0xa47)[0x1120b07] /lib64/libpthread.so.0(+0x7e25)[0x7f8b6d4a6e25] /lib64/libc.so.6(clone+0x6d)[0x7f8b6b677bad]
Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (0): Connection ID (thread ID): 0 Status: NOT_KILLED
You may download the Percona Server operations manual by visiting http://www.percona.com/software/percona-server/. You may find information in the manual which will help you identify the cause of the crash.
Сегодня получили такую же ошибку! После ночного бекапа. Наткнулся на эту тему, проверил, оказалось нет свободного места на hdd, почистил все заработало! Автору спасибо!