Got a packet bigger than ‘max_allowed_packet’ bytes
If you get this error when trying to dump a MySQL DB, this is due to the packet limit of MySQL server.
To solve this issue, add an extra entry into /etc/my.cnf file under [mysqld] group:
max_allowed_packet = 100M
This will reset the limitation to 100Mb for file insertion into blob type (or longblob) column. Then restart mysql server:
/sbin/service mysql restart
Reference:
http://dev.mysql.com/doc/refman/5.1/en/server-system-variables.html#sysvar_max_allowed_packet
FFmpeg :: make: *** [ffmpeg_frame.lo] Error 1
If you get the following error when running the command make to compile FFmpeg, that means ffmpeg was either installed or previously compiled on your server .
Go into the source’s directory and run the following command.
make distclean
or
make clean
Then rebuild ffmpeg again.
Verify that FFmpeg is working properly by running the following two commands:
#php -r ‘phpinfo();’ | grep ffmpeg
You will get a few lines similar to the following:
ffmpeg
ffmpeg-php version => 0.6.0-svn
ffmpeg-php built on => April 15 2010 15:31:45
ffmpeg-php gd support => enabled
ffmpeg libavcodec version => Lavc51.62.0
ffmpeg libavformat version => Lavf52.18.0
ffmpeg swscaler => disabled
ffmpeg.allow_persistent => 0 => 0
ffmpeg.show_warnings => 0 => 0
This is the second command to make sure that FFmpeg is working properly:
Passive FTP Mode (PASSV)
A mode for FTP connections that will initiate connections from the client side. Using this mode may be helpful if a user is having problems connecting to an FTP server through a firewall.
PassivePortRange 35000 36000
How to find primary and backup Superblock
dumpe2fs prints the super block and blocks group information for the filesystem present on device.
#dumpe2fs /dev/hda4 | grep -i superblock
dumpe2fs 1.39 (29-May-2006)
Primary superblock at 0, Group descriptors at 1-1
Backup superblock at 32768, Group descriptors at 32769-32769
Backup superblock at 98304, Group descriptors at 98305-98305
Backup superblock at 163840, Group descriptors at 163841-163841
Backup superblock at 229376, Group descriptors at 229377-229377
Backup superblock at 294912, Group descriptors at 294913-294913
Backup superblock at 819200, Group descriptors at 819201-819201
Backup superblock at 884736, Group descriptors at 884737-884737
Backup superblock at 1605632, Group descriptors at 1605633-1605633
Now you can use the command below to repair the file system.
e2fsck - check a Linux ext2/ext3 file system
