Meu servidor travou hoje, devido a um comando de tabela truncada simultâneo em uma de nossas tabelas INNODB. O servidor pode ser reiniciado, mas após a inicialização, sempre que tento emitir um comando SQL, recebo o seguinte erro:
ERROR 2006 (HY000): MySQL server has gone awayFoi o que aconteceu nos logs:
121206 01:11:12 mysqld restarted
121206 1:11:13 InnoDB: Started; log sequence number 275 559321759
InnoDB: !!! innodb_force_recovery is set to 1 !!!
121206 1:11:13 [Note] /usr/libexec/mysqld: ready for connections.
Version: '5.0.95-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 Source distribution
InnoDB: Error: trying to load index PRIMARY for table
InnoDB: but the index tree has been freed!
121206 1:11:37 - 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.
key_buffer_size=134217728
read_buffer_size=1048576
max_used_connections=1
max_connections=400
threads_connected=1
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections = 950272 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.
thd=0x9900950
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...
Cannot determine thread, fp=0x46353fa0, backtrace may not be correct.
Stack range sanity check OK, backtrace follows:
(nil)
New value of fp=0x9900950 failed sanity check, terminating stack trace!
Please read http://dev.mysql.com/doc/mysql/en/using-stack-trace.html and follow instructions on how to resolve the stack trace. Resolved
stack trace is much more helpful in diagnosing the problem, so please do
resolve it
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort...
thd->query at 0x993e500 =
thd->thread_id=1
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.Eu pesquisei online e recebo a dica de que é um bug do MySQL, mas não tenho idéia de como resolvê-lo. Estou usando o MySQL versão 5.0.95.
Parece que eu tenho que criar um novo banco de dados e despejar os dados antigos no novo, mas como posso fazer isso se nem consigo emitir nenhum comando SQL para o atual?
--- UPDATE ---
Versão: '5.0.95-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 Distribuição da fonte InnoDB: Erro: ao tentar carregar o índice PRIMARY para a tabela InnoDB: mas o árvore de índice foi liberada! 121206 4:13:41 - o mysqld recebeu o sinal 11; Pode ser porque você atingiu um inseto. Também é possível que esse binário ou uma das bibliotecas às quais foi vinculado esteja corrompido, construído de maneira inadequada ou configurado incorretamente. Este erro também pode ser causada por hardware com defeito. Faremos o possível para coletar algumas informações que, com sorte, ajudarão a diagnosticar o problema, mas como já travamos, algo está definitivamente errado e isso pode falhar.
key_buffer_size=134217728
read_buffer_size=1048576
max_used_connections=1
max_connections=400
threads_connected=1
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections = 950272 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.
thd=0x17fb8950
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...
Cannot determine thread, fp=0x464a3fa0, backtrace may not be correct.
Stack range sanity check OK, backtrace follows:
(nil)
New value of fp=0x17fb8950 failed sanity check, terminating stack trace!
Please read http://dev.mysql.com/doc/mysql/en/using-stack-trace.html and follow instructions on how to resolve the stack trace. Resolved
stack trace is much more helpful in diagnosing the problem, so please do
resolve it
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort...
thd->query at 0x17ff6500 =
thd->thread_id=3
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.
Number of processes running now: 0
121206 04:13:41 mysqld restarted
InnoDB: The log sequence number in ibdata files does not match
InnoDB: the log sequence number in the ib_logfiles!
121206 4:13:42 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...
121206 4:13:43 InnoDB: Started; log sequence number 275 559323148
121206 4:13:43 [Note] /usr/libexec/mysqld: ready for connections.
Version: '5.0.95-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 Source distribution