April 17th, 2013, 07:47 PM
Huge Problem- MySql won't start :(
Ok, so we have a database with our CDR records in it, and the server went down, and this is the most recent backup. Apparently the guy who did it copied everything live and so corruption is the possible culprit.
I've already ran myisamchk on the files, and it seemed to do it's thing, but it won't start, here is mysqld.log
130417 16:38:50 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
130417 16:38:51 InnoDB: Initializing buffer pool, size = 8.0M
130417 16:38:51 InnoDB: Completed initialization of buffer pool
InnoDB: Log scan progressed past the checkpoint lsn 1 405160804
130417 16:38:51 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: Doing recovery: scanned up to log sequence number 1 405164655
130417 16:38:51 InnoDB: Starting an apply batch of log records to the database...
InnoDB: Progress in percents: 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 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 23:38:51 UTC - 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.
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 338332 K bytes of memory
Hope that's ok; if not, decrease some variables in the equation.
Thread pointer: 0x0
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
stack_bottom = 0 thread_stack 0x40000
The manual page at xxxxxxxxxxxxxxx contains
information that should help you find out what is causing the crash.
130417 16:38:51 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
I really need to get this database back up, or at the very least extract the information from it.
Please let me know what else i can do.
April 18th, 2013, 05:23 PM
Solved with this thread
Also, a personal note:
be sure that mysql is the user and group of all directories and files from /var/lib/mysql - or whatever user mysql runs as.
Last edited by themrrobert; April 18th, 2013 at 05:24 PM.
Reason: added notes