[vpsFree.cz: community-list] mysql problem
Dusan Simek
pixelfields at gmail.com
Sun Aug 5 15:50:02 CEST 2012
Nezkousel, zkusim, o ty poskozeny intergite jsem taky premyslel.
V priloze by mel byt my.cnf, jestli to projde.
Dusan
On 08/05/2012 03:45 PM, Tomas Srnka wrote:
> http://www.cafewebmaster.com/repair-all-mysql-databases-tables-php -> take nieco si skusal? Mozes mat poskodenu integritu niektorych tabuliek. Idealne si napis skript, co zbehne CHECK a REPAIR na vsetky tabulky vo vsetkych DB.
>
> On Aug 5, 2012, at 3:38 PM, Dusan Simek <pixelfields at gmail.com> wrote:
>
>> Ahoj chlapci,
>> ten patecni vypadek/presun vps mi nejak rozbil mysql. Chtel bych poprosit o info, jak to opravit, pokud s tim mate nekdo nejakou zkusenost. Situace je nasledujici:
>>
>> Pri nekterych requestech (je to nahodne, 10 requestu ok, 11 zfailuje) dojde ke bude k chybe pri pripojeni, nebo ke ztrate spojeni. V logu vidim nasledujici:
>>
>> bud:
>>
>> OperationalError: (2013, "Lost connection to MySQL server at 'reading initial communication packet', system error: 104")
>>
>> nebo:
>>
>> OperationalError: (2003, "Can't connect to MySQL server on '83.167.228.14' (111)")
>>
>> nebo:
>>
>> OperationalError: (2002, "Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)")
>>
>> mysql vypada, ze bezi normalne:
>>
>> netstat -tupan | grep mysql
>> tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 26693/mysqld
>>
>> ps ax | grep mysql
>> 12488 ? S 0:04 /bin/sh /usr/bin/mysqld_safe
>> 26869 ? Sl 0:02 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --log-error=/var/lib/mysql/msa.err --pid-file=/var/lib/mysql/msa.pid --socket=/var/run/mysqld/mysqld.sock --port=3306
>>
>> socket vypada ok:
>>
>> ls -la /var/run/mysqld/
>> total 8
>> drwxr-xr-x 2 mysql mysql 4096 Aug 5 15:32 .
>> drwxr-xr-x 20 root root 4096 Aug 5 10:46 ..
>> srwxrwxrwx 1 mysql mysql 0 Aug 5 15:32 mysqld.sock
>>
>>
>> Kdyz zkusim mysql restartovat, dostanu nasledujici:
>>
>> /etc/init.d/mysql restart
>> Stopping MySQL database server: mysqld.
>> Starting MySQL database server: mysqld.
>> Checking for corrupt, not cleanly closed and upgrade needing tables..
>> msa:.../home/dsimek > ERROR 2013 (HY000) at line 1: Lost connection to MySQL server during query
>> ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111)
>> ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
>> ....
>>
>> v logu pri startu vidim toto:
>>
>> Aug 5 10:26:33 msa /etc/mysql/debian-start[30658]: Upgrading MySQL tables if necessary.
>> Aug 5 10:26:33 msa /etc/mysql/debian-start[30664]: /usr/bin/mysql_upgrade: the '--basedir' option is always ignored
>> Aug 5 10:26:33 msa /etc/mysql/debian-start[30664]: Looking for 'mysql' as: /usr/bin/mysql
>> Aug 5 10:26:33 msa /etc/mysql/debian-start[30664]: Looking for 'mysqlcheck' as: /usr/bin/mysqlcheck
>> Aug 5 10:26:33 msa /etc/mysql/debian-start[30664]: This installation of MySQL is already upgraded to 5.1.63, use --force if you still need to run mysql_upgrade
>> Aug 5 10:26:33 msa /etc/mysql/debian-start[30672]: Checking for insecure root accounts.
>> Aug 5 10:26:33 msa /etc/mysql/debian-start[30677]: Triggering myisam-recover for all MyISAM tables
>>
>> Diky za jakykoliv tip.
>>
>> Dusan
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>
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-------------- next part --------------
# Example MySQL config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MySQL plays
# an important part, or systems up to 128M where MySQL is used together with
# other programs (such as a web server)
#
# You can copy this file to
# /etc/my.cnf to set global options,
# mysql-data-dir/my.cnf to set server-specific options (in this
# installation this directory is /var/lib/mysql) or
# ~/.my.cnf to set user-specific options.
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.
# The following options will be passed to all MySQL clients
[client]
#password = your_password
port = 3306
socket = /var/run/mysqld/mysqld.sock
# Here follows entries for some specific programs
# The MySQL server
[mysqld]
port = 3306
socket = /var/run/mysqld/mysqld.sock
skip-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
user = mysql
#datadir=/var/lib/mysql
# Don't listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the "enable-named-pipe" option) will render mysqld useless!
#
#skip-networking
# Replication Master Server (default)
# binary logging is required for replication
log-bin=mysql-bin
# binary logging format - mixed recommended
binlog_format=mixed
expire_logs_days = 4
max_binlog_size = 100M
# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
server-id = 1
# Replication Slave (comment out master section to use this)
#
# To configure this host as a replication slave, you can choose between
# two methods :
#
# 1) Use the CHANGE MASTER TO command (fully described in our manual) -
# the syntax is:
#
# CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,
# MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
#
# where you replace <host>, <user>, <password> by quoted strings and
# <port> by the master's port number (3306 by default).
#
# Example:
#
# CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
# MASTER_USER='joe', MASTER_PASSWORD='secret';
#
# OR
#
# 2) Set the variables below. However, in case you choose this method, then
# start replication for the first time (even unsuccessfully, for example
# if you mistyped the password in master-password and the slave fails to
# connect), the slave will create a master.info file, and any later
# change in this file to the variables' values below will be ignored and
# overridden by the content of the master.info file, unless you shutdown
# the slave server, delete master.info and restart the slaver server.
# For that reason, you may want to leave the lines below untouched
# (commented) and instead use CHANGE MASTER TO (see above)
#
# required unique id between 2 and 2^32 - 1
# (and different from the master)
# defaults to 2 if master-host is set
# but will not function as a slave if omitted
#server-id = 2
#
innodb_data_home_dir = /var/lib/mysql/
innodb_data_file_path = ibdata1:10M:autoextend
innodb_log_group_home_dir = /var/lib/mysql/
innodb_buffer_pool_size = 192M
innodb_additional_mem_pool_size = 4M
innodb_log_file_size = 48M
innodb_log_buffer_size = 8M
# The replication master for this slave - required
#master-host = <hostname>
#
# The username the slave will use for authentication when connecting
# to the master - required
#master-user = <username>
#
# The password the slave will authenticate with when connecting to
# the master - required
#master-password = <password>
#
# The port the master is listening on.
# optional - defaults to 3306
#master-port = <port>
#
# binary logging - not required for slaves, but recommended
#log-bin=mysql-bin
# Point the following paths to different dedicated disks
#tmpdir = /tmp/
#log-update = /path-to-dedicated-directory/hostname
# Uncomment the following if you are using InnoDB tables
#innodb_data_home_dir = /var/lib/mysql/
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = /var/lib/mysql/
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
#innodb_buffer_pool_size = 16M
#innodb_additional_mem_pool_size = 2M
# Set .._log_file_size to 25 % of buffer pool size
#innodb_log_file_size = 5M
#innodb_log_buffer_size = 8M
#innodb_flush_log_at_trx_commit = 1
#innodb_lock_wait_timeout = 50
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates
[myisamchk]
key_buffer_size = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
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