Sunday, April 19, 2015

MySQL 5.5.30 Can't start in external HardDisk

Recently I have faced a big issue in one of my Live Production server.MySQL server could not start and throws the below error.

MySQL - 5.5.30 version
OS - Centos 6.5 - 64 bit
MySQL Data Directory in  2TB external Hard Disk


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.
Please help us make Percona Server better by reporting any
bugs at http://bugs.percona.com/

key_buffer_size=104857600
read_buffer_size=131072
max_used_connections=0
max_threads=8002
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 = 3273305 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
terribly wrong...
stack_bottom = 0 thread_stack 0x40000




Then I have searched and found this issue because of Hardware.Becuase I have my MySQL Data directory in 2TB external HDD with ext4 file system.

So I rebooted the entire server and then started MySQL. Now it started fine with out issue.


This issue might be cause becaue of Hardware also.


Now its resolved.