Oggi il mio server si è bloccato a causa di un comando simultaneo di tabella troncata su una delle nostre tabelle INNODB. È possibile riavviare il server, ma dopo l'avvio, ogni volta che provo a emettere un comando SQL, viene visualizzato il seguente errore:
ERROR 2006 (HY000): MySQL server has gone awayQuesto è ciò che è accaduto nei registri:
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.Ho cercato online e ho capito che si tratta di un bug di MySQL, ma non ho idea di come risolverlo. Sto usando MySQL versione 5.0.95.
Sembra che debba creare un nuovo database e scaricare i vecchi dati in quello nuovo, ma come posso farlo se non riesco nemmeno a inviare comandi SQL a quello attuale?
--- AGGIORNAMENTO ---
Versione: socket '5.0.95-log': porta '/var/lib/mysql/mysql.sock': 3306 Distribuzione sorgente InnoDB: errore: tentativo di caricare l'indice PRIMARY per la tabella InnoDB: ma il l'albero degli indici è stato liberato! 121206 4:13:41 - mysqld ha ricevuto il segnale 11; Questo può essere perché hai trovato un bug di sistema. È anche possibile che questo binario o una delle librerie a cui era collegato sia corrotto, costruito in modo errato o configurato in modo errato. Questo errore può anche essere causato da un malfunzionamento dell'hardware. Faremo del nostro meglio per raccogliere alcune informazioni che si spera possano aiutare a diagnosticare il problema, ma dal momento che ci siamo già schiantati, qualcosa è decisamente sbagliato e questo potrebbe non riuscire.
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