今天就跟大家聊聊有关MySQL突然报错RASH怎么办，可能很多人都不太了解，为了让大家更加了解，小编给大家总结了以下内容，希望大家根据这篇文章可以有所收获。

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MYSQL日志：
100721 11:01:42 - mysqld got signal 11 ;
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.
We will try our best to scrape up some info that will hopefully help diagnose
the problem, but since we have already crashed, something is definitely wrong
and this may fail.[@more@]

key_buffer_size=335544320
read_buffer_size=1048576
max_used_connections=149
max_threads=4000
threads_connected=43
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 8560336 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

thd: 0x2aac7c25b990
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 = 0x46ba6f20 thread_stack 0x40000

100721 11:01:42 mysqld_safe Number of processes running now: 0
100721 11:01:42 mysqld_safe mysqld restarted
InnoDB: Log scan progressed past the checkpoint lsn 63 1559628325
100721 11:01:43  InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Restoring possible half-written data pages from the doublewrite
InnoDB: buffer...
InnoDB: Doing recovery: scanned up to log sequence number 63 1564041997
100721 11:01:44  InnoDB: Starting an apply batch of log records to the database...
InnoDB: Progress in percents: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 3
7 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 8
1 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
InnoDB: Apply batch completed
InnoDB: Last MySQL binlog file position 0 906880987, file name /home/mysql/data/mysql/mysql-bin.000458
100721 11:01:54  InnoDB: Started; log sequence number 63 1564041997
100721 11:01:54 [Note] Recovering after a crash using /home/mysql/data/mysql/mysql-bin
100721 11:01:56 [Note] Starting crash recovery...
100721 11:01:56 [Note] Crash recovery finished.
100721 11:01:57 [Note] Slave SQL thread initialized, starting replication in log 'mysql-bin.000456' at position 409173074, relay log
'/home/mysql/data/mysql/slave-relay.001030' position: 251
100721 11:01:57 [Note] Slave I/O thread: connected to master 'replicator@10.247.63.2:3306',replication started in log 'mysql-bin.000
456' at position 409173074
100721 11:01:57 [Note] Event Scheduler: Loaded 0 events
100721 11:01:57 [Note] /usr/sbin/mysqld: ready for connections.
Version: '5.1.40-community-log'  socket: '/tmp/mysql.sock'  port: 3306  MySQL Community Server (GPL)

/VAR/LOG/MESSAGES 日志如下：
Jul 21 11:01:42 r21c05033 kernel: mysqld[29543]: segfault at 0000000000000038 rip 000000000077d825 rsp 0000000041fd5fa0 error 4

SLAVE MYSQL 日志报错如下：

100721 11:01:42 [ERROR] Error reading packet from server: Lost connection to MySQL server during query ( server_errno=2013)
100721 11:01:42 [Note] Slave I/O thread: Failed reading log event, reconnecting to retry, log 'mysql-bin.000458' at postion 906880987
100721 11:01:42 [ERROR] Slave I/O: error reconnecting to master 'replicator@10.247.63.1:3306' - retry-time: 60  retries: 86400, Error_code: 2013
100721 11:02:42 [Note] Slave: connected to master 'replicator@10.247.63.1:3306',replication resumed in log 'mysql-bin.000458' at position 906880987

网上很多朋友也碰到了类似的错误，但MS都没有找到原因。只知道BUG.  有没有朋友碰到过，一起分析下状况？

root@r21c05033.btc.aliyun.com # free
            total       used       free     shared    buffers     cached
Mem:      24677088   18645608    6031480          0     447856   16351076
-/+ buffers/cache:    1846676   22830412
Swap:      2096440        228    2096212

# /etc/my.cnf
sort_buffer_size = 1M        
read_buffer_size = 1M        
read_rnd_buffer_size = 8M    
join_buffer_size = 16M
key_buffer_size = 320M                    
bulk_insert_buffer_size = 64M              
myisam_sort_buffer_size = 128M            
innodb_additional_mem_pool_size = 300M    
innodb_buffer_pool_size = 6G
innodb_log_buffer_size = 4M
innodb_file_per_table
innodb_doublewrite=1

看完上述内容，你们对MYSQL突然报错RASH怎么办有进一步的了解吗？如果还想了解更多知识或者相关内容，请关注创新互联行业资讯频道，感谢大家的支持。

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