Problems with starting MySQL server - dBforums::
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Hi,
I'm running my Vbulletin 3.5.1 in a server with:
3 Gb of RAM
2x3.2 Ghz Xeon 64 Bits
USCSI 360
This server have Apache 2.0.55 and Mysql 4.1.10a, with Ubuntu Linux. Actually we are getting problems because sometimes the database cracks and all stop working.
My MySQL variables are:
+---------------------------------+-----------------------------+
Variable_name Value
+---------------------------------+-----------------------------+
back_log 50
basedir /usr/
binlog_cache_size 32768
bulk_insert_buffer_size 8388608
character_set_client latin1
character_set_connection latin1
character_set_database latin1
character_set_results latin1
character_set_server latin1
character_set_system utf8
character_sets_dir /usr/share/mysql/charsets/
collation_connection latin1_swedish_ci
collation_database latin1_swedish_ci
collation_server latin1_swedish_ci
concurrent_insert ON
connect_timeout 10
datadir /var/lib/mysql/
date_format %Y-%m-%d
datetime_format %Y-%m-%d %H:%i:%s
default_week_format 0
delay_key_write ON
delayed_insert_limit 100
delayed_insert_timeout 300
delayed_queue_size 1000
expire_logs_days 0
flush OFF
flush_time 0
ft_boolean_syntax + -><()~*:""&
ft_max_word_len 84
ft_min_word_len 4
ft_query_expansion_limit 20
ft_stopword_file (built-in)
group_concat_max_len 1024
have_archive YES
have_bdb NO
have_compress YES
have_crypt YES
have_csv YES
have_example_engine NO
have_geometry YES
have_innodb YES
have_isam YES
have_ndbcluster DISABLED
have_openssl NO
have_query_cache YES
have_raid YES
have_rtree_keys YES
have_symlink YES
init_connect
init_file
init_slave
innodb_additional_mem_pool_size 1048576
innodb_autoextend_increment 8
innodb_buffer_pool_awe_mem_mb 0
innodb_buffer_pool_size 8388608
innodb_data_file_path ibdata1:10M:autoextend
innodb_data_home_dir
innodb_fast_shutdown ON
innodb_file_io_threads 4
innodb_file_per_table OFF
innodb_flush_log_at_trx_commit 1
innodb_flush_method
innodb_force_recovery 0
innodb_lock_wait_timeout 50
innodb_locks_unsafe_for_binlog OFF
innodb_log_arch_dir
innodb_log_archive OFF
innodb_log_buffer_size 1048576
innodb_log_file_size 5242880
innodb_log_files_in_group 2
innodb_log_group_home_dir ./
innodb_max_dirty_pages_pct 90
innodb_max_purge_lag 0
innodb_mirrored_log_groups 1
innodb_open_files 300
innodb_table_locks ON
innodb_thread_concurrency 8
interactive_timeout 28800
join_buffer_size 2093056
key_buffer_size 134217728
key_cache_age_threshold 300
key_cache_block_size 1024
key_cache_division_limit 100
language /usr/share/mysql/spanish/
large_files_support ON
license GPL
local_infile ON
locked_in_memory OFF
log OFF
log_bin OFF
log_error
log_slave_updates OFF
log_slow_queries OFF
log_update OFF
log_warnings 1
long_query_time 10
low_priority_updates OFF
lower_case_file_system OFF
lower_case_table_names 0
max_allowed_packet 67107840
max_binlog_cache_size 18446744073709551615
max_binlog_size 104857600
max_connect_errors 10
max_connections 1000
max_delayed_threads 20
max_error_count 64
max_heap_table_size 16777216
max_insert_delayed_threads 20
max_join_size 18446744073709551615
max_length_for_sort_data 1024
max_relay_log_size 0
max_seeks_for_key 18446744073709551615
max_sort_length 1024
max_tmp_tables 32
max_user_connections 0
max_write_lock_count 18446744073709551615
myisam_data_pointer_size 4
myisam_max_extra_sort_file_size 2147483648
myisam_max_sort_file_size 9223372036854775807
myisam_recover_options OFF
myisam_repair_threads 1
myisam_sort_buffer_size 67108864
ndb_autoincrement_prefetch_sz 32
ndb_force_send ON
ndb_use_exact_count ON
ndb_use_transactions ON
net_buffer_length 16384
net_read_timeout 30
net_retry_count 10
net_write_timeout 60
new OFF
old_passwords ON
open_files_limit 5010
pid_file /var/run/mysqld/mysqld.pid
port 3306
preload_buffer_size 32768
protocol_version 10
query_alloc_block_size 16384
query_cache_limit 2097152
query_cache_min_res_unit 4096
query_cache_size 134217728
query_cache_type ON
query_cache_wlock_invalidate OFF
query_prealloc_size 16384
range_alloc_block_size 2048
read_buffer_size 2093056
read_only OFF
read_rnd_buffer_size 520192
relay_log_purge ON
rpl_recovery_rank 0
secure_auth OFF
server_id 0
skip_external_locking ON
skip_networking OFF
skip_show_database OFF
slave_net_timeout 3600
slow_launch_time 2
socket /var/run/mysqld/mysqld.sock
sort_buffer_size 4194296
sql_mode
storage_engine MyISAM
sync_binlog 0
sync_replication 0
sync_replication_slave_id 0
sync_replication_timeout 0
sync_frm ON
system_time_zone CET
table_cache 1800
table_type MyISAM
thread_cache_size 384
Problem connecting to mySQL Server - SitePoint Forums::
4 posts - Last post: Oct 12, 2008Cool Problem connecting to mySQL Server Hi folks from SitePoint Form. an issue tryng to connect to one of my databases in mySQL Server.
http://www.sitepoint.com/forums/showthread.php?t=576547HOME |
downgrading glibc [WAS:Lossing connetion to MySql server]::
Oct 15, 2002 Hi Folks, > > > > I have weird problem here. My MySql runs on a 7.2 Rh Linux Re: Lossing connetion to MySql server. From: Mark Matthews
http://www.redhat.com/archives/redhat-list/2002-October/msg01894.htmlHOME |
thread_stack 196608
time_format %H:%i:%s
time_zone SYSTEM
tmp_table_size 268435456
tmpdir /tmp
transaction_alloc_block_size 8192
transaction_prealloc_size 4096
tx_isolation REPEATABLE-READ
version 4.1.10a-Debian_2ubuntu0.1
version_comment Source distribution
version_compile_machine x86_64
version_compile_os pc-linux-gnu
wait_timeout 28800
+---------------------------------+-----------------------------+
183 rows in set (0.00 sec)
And my my.cnf config file
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
# Here is entries for some specific programs
# The following values assume you have at least 32M ram
# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0
open_files_limit = 8192
[mysqld]
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
#log = /var/log/mysql.log
#log = /var/log/mysql/mysql.log
# Error logging goes to syslog. This is a Debian improvement :)
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
language = /usr/share/mysql/spanish
skip-external-locking
#
# For compatibility to other Debian packages that still use
# libmysqlclient10 and libmysqlclient12.
old_passwords = 1
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
# bind-address = 127.0.0.1
max_connections = 1000
key_buffer = 128M
myisam_sort_buffer_size = 64M
join_buffer_size = 2M
read_buffer_size = 2M
sort_buffer_size = 4M
table_cache = 1800
thread_cache_size = 384
wait_timeout = 900
connect_timeout = 10
tmp_table_size = 256M
max_allowed_packet = 64M
max_connect_errors = 10
read_rnd_buffer_size = 524288
bulk_insert_buffer_size = 8M
thread_concurrency = 4
query_cache_limit = 2M
query_cache_size = 128M
query_cache_type = 1
query_prealloc_size = 16384
query_alloc_block_size = 16384
#
# Here you can see queries with especially long duration
#log-slow-queries = /var/log/mysql/mysql-slow.log
#
# The following can be used as easy to replay backup logs or for replication.
#server-id = 1
#log-bin = /var/log/mysql/mysql-bin.log
# See /etc/mysql/debian-log-rotate.conf for the number of files kept.
max_binlog_size = 104857600
#binlog-do-db = include_database_name
#binlog-ignore-db = include_database_name
#
# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
# Read the manual for more InnoDB related options. There are many!
#
# Read the manual, too, if you want chroot!
# chroot = /var/lib/mysql/
#
# If you want to enable SSL support (recommended) read the manual or my
# HOWTO in /usr/share/doc/mysql-server/SSL-MINI-HOWTO.txt.gz
# ssl-ca=/etc/mysql/cacert.pem
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem
[mysqldump]
quick
quote-names
max_allowed_packet = 16M
[mysql]
#no-auto-rehash # faster start of mysql but no tab completition
[myisamchk]
key_buffer = 64M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M
[isamchk]
key_buffer = 16M
I'm using APC in the server too.
What can I do? Thanks for all and best regards.
I'm using Vbulletin 3.5.1
my.cnf config file
max_connections = 1000
key_buffer = 128M
myisam_sort_buffer_size = 64M
join_buffer_size = 2M
read_buffer_size = 2M
sort_buffer_size = 4M
table_cache = 1800
thread_cache_size = 384
wait_timeout = 900
connect_timeout = 10
tmp_table_size = 256M
max_allowed_packet = 64M
max_connect_errors = 10
read_rnd_buffer_size = 524288
bulk_insert_buffer_size = 8M
thread_concurrency = 4
query_cache_limit = 2M
query_cache_size = 128M
query_cache_type = 1
query_prealloc_size = 16384
query_alloc_block_size = 16384
Apache Variables:
KeepAlive On
MaxKeepAliveRequests 100
StartServers 5
MinSpareServers 5
MaxSpareServers 20
MaxClients 250
MaxRequestsPerChild 0
StartServers 2
MaxClients 250
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25
MaxRequestsPerChild 0
NumServers 5
StartThreads 5
MinSpareThreads 5
MaxSpareThreads 10
MaxThreadsPerChild 20
MaxRequestsPerChild 0
Do you need anything else?
Thanks Eva, I will try it and say you the results.
still missing alot of info i.e. users online average and max, cookie timeout, output of question #7 mysqladmin extended-status output, any >2GB files etc
can i have your mysqladmin extended-status output BEFORE you do any steps below
but for now MySQL 4.1.10a is out dated so i'd
1. Upgrade to MySQL 4.1.15
2. Edit /etc/my.cnf and place the following mysql server settings in /etc/my.cnf and restart mysql server afterwards
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
[mysqld]
old_passwords
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
language = /usr/share/mysql/spanish
skip-external-locking
back_log = 50
skip-innodb
max_connections = 500
key_buffer = 16M
myisam_sort_buffer_size = 64M
join_buffer_size = 1M
read_buffer_size = 1M
sort_buffer_size = 2M
table_cache = 1800
thread_cache_size = 384
wait_timeout = 180
connect_timeout = 10
tmp_table_size = 64M
max_allowed_packet = 64M
max_connect_errors = 10
read_rnd_buffer_size = 524288
bulk_insert_buffer_size = 8M
thread_concurrency = 4
query_cache_limit = 1M
query_cache_size = 64M
query_cache_type = 1
query_prealloc_size = 16384
query_alloc_block_size = 16384
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
open_files_limit = 8192
[mysqldump]
quick
max_allowed_packet = 16M
[myisamchk]
key_buffer = 64M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M
3. Install APC Cache lastest version from http://pecl.php.net/package/APC. Read install guide at http://www.vbulletin.com/forum/showthread.php?t=165367
4. Upgrade to vB 3.5.2 http://www.vbulletin.com/forum/showthread.php?t=166391 if you're on vB 3.5.x
5. edit httpd.conf values from
Maxrequestsperchild 0
to
Maxrequestsperchild 250
restart apache
6. If still have issues try to disable these 4 options - try these later after seeing how recommendations 1 to 4 do first:
Admin CP -> vBulletin Options -> Server Settings and Optimization Options -> Display Logged in Users?
Admin CP -> vBulletin Options -> Forum Display Options (forumdisplay) -> Show Users Browsing Forums
Admin CP -> vBulletin Options -> Thread Display Options -> Show Users Browsing Thread
Admin CP -> vBulletin Options -> Message Searching Options -> Automatic Similar Thread search
i need the rest of your info that is missing that is asked at http://www.vbulletin.com/forum/showthread.php?t=70117
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Problems with my MySQL Server