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View Full Version : Server Optimization Request (Urgent)


mshahid
Wed 27th Jun '07, 1:02pm
vBulletin is crawling and dead slow without any load.

1. Is this on dedicated or shared virual server. If shared, how many sites share this

server (ask web host if needed)

Shared, 2 sites

2. your server specs. For example:

host: Dell PowerEdge 2950
cpu speed/type single or dual cpus): Dual Xeon (5150) 2.66
how much memory installed: 4GB
hard drive type/configuration: 2 73GB SATA Raid 1
linux distributor or windows version: Windows 2003 Server Service Pack 2
apache/IIS version: IIS 6.0
PHP version: php 5.2.0 / 5.2.2/ 5.1.4 (Tried them all)
MySQL version: MySQL 5.0.27-community-nt

3. what version of vB are you running ?

vBulletin 3.6.5

4. if you use mysql 4.x instead of mysql 3.23.x, do you have any innodb type

databases/tables on your server ?

MySQL 5.0.27-community-nt with innodb disabled.

5. if possible how mysql was compiled/installed

win32 exe, installed from the executable

6. your top stats

I don't know

7. your mysql configuration variables located at /etc/my.cnf or c:\my.cnf or my.ini so

post the contents inside of my.cnf (minus any passwords of course).

[client]

port=3306

[mysql]

default-character-set=latin1


[mysqld]

port=3306
basedir="D:/Program Files/MySQL/MySQL Server 5.0/"
datadir="E:/MySQLData/"
default-character-set=latin1
default-storage-engine=MYISAM
sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_ SUBSTITUTION"
max_connections=341
query_cache_size=84M
table_cache=1520
tmp_table_size=30M
thread_cache_size=38
myisam_max_sort_file_size=100G
myisam_max_extra_sort_file_size=100G
myisam_sort_buffer_size=30M
key_buffer_size=257M
read_buffer_size=64K
read_rnd_buffer_size=256K
sort_buffer_size=256K

skip-innodb
innodb_additional_mem_pool_size=2M
innodb_flush_log_at_trx_commit=1
innodb_log_buffer_size=1M
innodb_buffer_pool_size=8M
innodb_log_file_size=10M
innodb_thread_concurrency=10

[MySQL Variables]
auto_increment_increment 1
auto_increment_offset 1
automatic_sp_privileges ON
back_log 50
basedir D:\Program Files\MySQL\MySQL Server 5.0\
binlog_cache_size 32768
bulk_insert_buffer_size 8388608
character_set_client latin1
character_set_connection latin1
character_set_database latin1
character_set_filesystem binary
character_set_results latin1
character_set_server latin1
character_set_system utf8
character_sets_dir D:\Program Files\MySQL\MySQL Server 5.0\share\charsets\
collation_connection latin1_swedish_ci
collation_database latin1_swedish_ci
collation_server latin1_swedish_ci
completion_type 0
concurrent_insert 1
connect_timeout 5
datadir E:\MySQLData\
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
div_precision_increment 4
engine_condition_pushdown OFF
expire_logs_days 0
flush OFF
flush_time 1800
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_blackhole_engine NO
have_compress YES
have_crypt NO
have_csv NO
have_dynamic_loading YES
have_example_engine NO
have_federated_engine NO
have_geometry YES
have_innodb DISABLED
have_isam NO
have_merge_engine YES
have_ndbcluster NO
have_openssl DISABLED
have_query_cache YES
have_raid NO
have_rtree_keys YES
have_symlink YES
init_connect
init_file
init_slave
innodb_additional_mem_pool_size 2097152
innodb_autoextend_increment 8
innodb_buffer_pool_awe_mem_mb 0
innodb_buffer_pool_size 8388608
innodb_checksums ON
innodb_commit_concurrency 0
innodb_concurrency_tickets 500
innodb_data_file_path
innodb_data_home_dir
innodb_doublewrite ON
innodb_fast_shutdown 1
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 10485760
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_support_xa ON
innodb_sync_spin_loops 20
innodb_table_locks ON
innodb_thread_concurrency 10
innodb_thread_sleep_delay 10000
interactive_timeout 28800
join_buffer_size 131072
key_buffer_size 269484032
key_cache_age_threshold 300
key_cache_block_size 1024
key_cache_division_limit 100
language D:\Program Files\MySQL\MySQL Server 5.0\share\english\
large_files_support ON
large_page_size 0
large_pages OFF
lc_time_names en_US
license GPL
local_infile ON
log OFF
log_bin OFF
log_bin_trust_function_creators OFF
log_error .\spcprop-wmdb53.err
log_queries_not_using_indexes OFF
log_slave_updates OFF
log_slow_queries OFF
log_warnings 1
long_query_time 10
low_priority_updates OFF
lower_case_file_system ON
lower_case_table_names 1
max_allowed_packet 1048576
max_binlog_cache_size 4294967295
max_binlog_size 1073741824
max_connect_errors 10
max_connections 341
max_delayed_threads 20
max_error_count 64
max_heap_table_size 16777216
max_insert_delayed_threads 20
max_join_size 4294967295
max_length_for_sort_data 1024
max_prepared_stmt_count 16382
max_relay_log_size 0
max_seeks_for_key 4294967295
max_sort_length 1024
max_sp_recursion_depth 0
max_tmp_tables 32
max_user_connections 0
max_write_lock_count 4294967295
multi_range_count 256
myisam_data_pointer_size 6
myisam_max_sort_file_size 107374182400
myisam_recover_options OFF
myisam_repair_threads 1
myisam_sort_buffer_size 31457280
myisam_stats_method nulls_unequal
named_pipe OFF
net_buffer_length 16384
net_read_timeout 30
net_retry_count 10
net_write_timeout 60
new OFF
old_passwords OFF
open_files_limit 2048
optimizer_prune_level 1
optimizer_search_depth 62
pid_file E:\MySQLData\spcprop-wmdb53.pid
port 3306
preload_buffer_size 32768
prepared_stmt_count 0
protocol_version 10
query_alloc_block_size 8192
query_cache_limit 1048576
query_cache_min_res_unit 4096
query_cache_size 88080384
query_cache_type ON
query_cache_wlock_invalidate OFF
query_prealloc_size 8192
range_alloc_block_size 2048
read_buffer_size 61440
read_only OFF
read_rnd_buffer_size 258048
relay_log_purge ON
relay_log_space_limit 0
rpl_recovery_rank 0
secure_auth OFF
shared_memory OFF
shared_memory_base_name MYSQL
server_id 0
skip_external_locking ON
skip_networking OFF
skip_show_database OFF
slave_compressed_protocol OFF
slave_load_tmpdir C:\WINDOWS\TEMP\
slave_net_timeout 3600
slave_skip_errors OFF
slave_transaction_retries 10
slow_launch_time 2
sort_buffer_size 262136
sql_big_selects ON
sql_mode
sql_notes ON
sql_warnings OFF
ssl_ca
ssl_capath
ssl_cert
ssl_cipher
ssl_key
storage_engine MyISAM
sync_binlog 0
sync_frm ON
system_time_zone Eastern Daylight Time
table_cache 848
table_lock_wait_timeout 50
table_type MyISAM
thread_cache_size 38
thread_stack 196608
time_format %H:%i:%s
time_zone SYSTEM
timed_mutexes OFF
tmp_table_size 31457280
tmpdir C:\WINDOWS\TEMP\
transaction_alloc_block_size 8192
transaction_prealloc_size 4096
tx_isolation REPEATABLE-READ
updatable_views_with_limit YES
version 5.0.27-community-nt
version_comment MySQL Community Edition (GPL)
version_compile_machine ia32
version_compile_os Win32
wait_timeout 28800


8. MySQL stats from ssh telnet as root user type:

MySQL Status

Aborted_clients 232
Aborted_connects 1
Binlog_cache_disk_use 0
Binlog_cache_use 0
Bytes_received 2227
Bytes_sent 95103
Com_admin_commands 0
Com_alter_db 0
Com_alter_table 0
Com_analyze 0
Com_backup_table 0
Com_begin 0
Com_change_db 1
Com_change_master 0
Com_check 0
Com_checksum 0
Com_commit 0
Com_create_db 0
Com_create_function 0
Com_create_index 0
Com_create_table 0
Com_dealloc_sql 0
Com_delete 0
Com_delete_multi 0
Com_do 0
Com_drop_db 0
Com_drop_function 0
Com_drop_index 0
Com_drop_table 0
Com_drop_user 0
Com_execute_sql 0
Com_flush 0
Com_grant 0
Com_ha_close 0
Com_ha_open 0
Com_ha_read 0
Com_help 0
Com_insert 0
Com_insert_select 0
Com_kill 0
Com_load 0
Com_load_master_data 0
Com_load_master_table 0
Com_lock_tables 0
Com_optimize 0
Com_preload_keys 0
Com_prepare_sql 0
Com_purge 0
Com_purge_before_date 0
Com_rename_table 0
Com_repair 0
Com_replace 0
Com_replace_select 0
Com_reset 0
Com_restore_table 0
Com_revoke 0
Com_revoke_all 0
Com_rollback 0
Com_savepoint 0
Com_select 3
Com_set_option 1
Com_show_binlog_events 0
Com_show_binlogs 0
Com_show_charsets 0
Com_show_collations 0
Com_show_column_types 0
Com_show_create_db 0
Com_show_create_table 0
Com_show_databases 0
Com_show_errors 0
Com_show_fields 0
Com_show_grants 0
Com_show_innodb_status 0
Com_show_keys 0
Com_show_logs 0
Com_show_master_status 0
Com_show_ndb_status 0
Com_show_new_master 0
Com_show_open_tables 0
Com_show_privileges 0
Com_show_processlist 0
Com_show_slave_hosts 0
Com_show_slave_status 0
Com_show_status 1
Com_show_storage_engines 0
Com_show_tables 0
Com_show_triggers 0
Com_show_variables 0
Com_show_warnings 0
Com_slave_start 0
Com_slave_stop 0
Com_stmt_close 0
Com_stmt_execute 0
Com_stmt_fetch 0
Com_stmt_prepare 0
Com_stmt_reset 0
Com_stmt_send_long_data 0
Com_truncate 0
Com_unlock_tables 0
Com_update 1
Com_update_multi 0
Com_xa_commit 0
Com_xa_end 0
Com_xa_prepare 0
Com_xa_recover 0
Com_xa_rollback 0
Com_xa_start 0
Compression OFF
Connections 1814318
Created_tmp_disk_tables 0
Created_tmp_files 39978
Created_tmp_tables 1
Delayed_errors 0
Delayed_insert_threads 0
Delayed_writes 0
Flush_commands 1
Handler_commit 0
Handler_delete 0
Handler_discover 0
Handler_prepare 0
Handler_read_first 2
Handler_read_key 6
Handler_read_next 1
Handler_read_prev 0
Handler_read_rnd 0
Handler_read_rnd_next 4
Handler_rollback 0
Handler_savepoint 0
Handler_savepoint_rollback 0
Handler_update 1
Handler_write 130
Innodb_buffer_pool_pages_data 0
Innodb_buffer_pool_pages_dirty 0
Innodb_buffer_pool_pages_flushed 0
Innodb_buffer_pool_pages_free 0
Innodb_buffer_pool_pages_latched 0
Innodb_buffer_pool_pages_misc 0
Innodb_buffer_pool_pages_total 0
Innodb_buffer_pool_read_ahead_rnd 0
Innodb_buffer_pool_read_ahead_seq 0
Innodb_buffer_pool_read_requests 0
Innodb_buffer_pool_reads 0
Innodb_buffer_pool_wait_free 0
Innodb_buffer_pool_write_requests 0
Innodb_data_fsyncs 0
Innodb_data_pending_fsyncs 0
Innodb_data_pending_reads 0
Innodb_data_pending_writes 0
Innodb_data_read 0
Innodb_data_reads 0
Innodb_data_writes 0
Innodb_data_written 0
Innodb_dblwr_pages_written 0
Innodb_dblwr_writes 0
Innodb_log_waits 0
Innodb_log_write_requests 0
Innodb_log_writes 0
Innodb_os_log_fsyncs 0
Innodb_os_log_pending_fsyncs 0
Innodb_os_log_pending_writes 0
Innodb_os_log_written 0
Innodb_page_size 0
Innodb_pages_created 0
Innodb_pages_read 0
Innodb_pages_written 0
Innodb_row_lock_current_waits 0
Innodb_row_lock_time 0
Innodb_row_lock_time_avg 0
Innodb_row_lock_time_max 0
Innodb_row_lock_waits 0
Innodb_rows_deleted 0
Innodb_rows_inserted 0
Innodb_rows_read 0
Innodb_rows_updated 0
Key_blocks_not_flushed 0
Key_blocks_unused 217327
Key_blocks_used 28683
Key_read_requests 1167882080
Key_reads 10610703
Key_write_requests 1513956
Key_writes 1268800
Last_query_cost 0.000000
Max_used_connections 126
Not_flushed_delayed_rows 0
Open_files 476
Open_streams 0
Open_tables 304
Opened_tables 0
Qcache_free_blocks 5678
Qcache_free_memory 53365568
Qcache_hits 7003579
Qcache_inserts 5852043
Qcache_lowmem_prunes 31452
Qcache_not_cached 87520
Qcache_queries_in_cache 7059
Qcache_total_blocks 20929
Questions 20946529
Rpl_status NULL
Select_full_join 0
Select_full_range_join 0
Select_range 0
Select_range_check 0
Select_scan 1
Slave_open_temp_tables 0
Slave_retried_transactions 0
Slave_running OFF
Slow_launch_threads 0
Slow_queries 0
Sort_merge_passes 0
Sort_range 0
Sort_rows 0
Sort_scan 0
Ssl_accept_renegotiates 0
Ssl_accepts 0
Ssl_callback_cache_hits 0
Ssl_cipher
Ssl_cipher_list
Ssl_client_connects 0
Ssl_connect_renegotiates 0
Ssl_ctx_verify_depth 0
Ssl_ctx_verify_mode 0
Ssl_default_timeout 0
Ssl_finished_accepts 0
Ssl_finished_connects 0
Ssl_session_cache_hits 0
Ssl_session_cache_misses 0
Ssl_session_cache_mode NONE
Ssl_session_cache_overflows 0
Ssl_session_cache_size 0
Ssl_session_cache_timeouts 0
Ssl_sessions_reused 0
Ssl_used_session_cache_entries 0
Ssl_verify_depth 0
Ssl_verify_mode 0
Ssl_version
Table_locks_immediate 17410208
Table_locks_waited 30071
Tc_log_max_pages_used 0
Tc_log_page_size 0
Tc_log_page_waits 0
Threads_cached 24
Threads_connected 14
Threads_created 1138
Threads_running 5
Uptime 1310982

9. is your vB the only thing on the server? or other scripts & sites which utilise php

and mysql?

Yes, the only thing.


10. how many average and max concurrent users on your vB forum ? and what your cookie

timeout is ?

Not more than 2 users rightnow but expect this load to increase significantly when the

board is launched. Around 300 concurrent users.

11. create a file named phpinfo.php and place this code in it and post the url/link to

it from your web site

http://advice.thisoldhouse.com/phpinfo.php

12. if you run Apache and you have your own dedicated server or access to your

httpd.conf (apache configuration file) can you post the values you have set for the

following :

Not applicable

13. check to see if any files i.e. apache log files are hitting 2GB or 4GB max file

size limits i.e. see if you have max file size exceeded messages in apache error log

Not applicable

14. Post output from these 3 commands

Not applicable

eva2000
Thu 28th Jun '07, 11:33am
Try the following in this exact order. You can ignore any of the suggestions that you have already done.

1. Upgrade PHP to 5.2.3 or if you have problems install PHP 4.4.7 (in either case install as ISAPI module and NO CGI)
2. Edit my.ini or my.cnf and place the following mysql server settings in my.ini or my.cnf and restart mysql server afterwards


[client]
port=3306

[mysql]
default-character-set=latin1

[mysqld]
port=3306
basedir="D:/Program Files/MySQL/MySQL Server 5.0/"
datadir="E:/MySQLData/"
default-character-set=latin1
default-storage-engine=MYISAM
#sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_E NGINE_SUBSTITUTION"
#old_passwords
back_log = 50
skip-innodb
max_connections = 500
key_buffer = 64M
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 = 30
connect_timeout = 10
tmp_table_size = 64M
max_heap_table_size = 64M
max_allowed_packet = 64M
max_connect_errors = 10
thread_concurrency = 4
concurrent_insert = 2
table_lock_wait_timeout = 35
read_rnd_buffer_size = 524288
bulk_insert_buffer_size = 8M
query_cache_limit = 4M
query_cache_size = 64M
query_cache_type = 1
query_prealloc_size = 131072
query_alloc_block_size = 65536
default-storage-engine = MyISAM

[mysqld_safe]
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 latest version of Xcache http://www.vbulletin.com/forum/showthread.php?t=213267

4. Upgrade to vB 3.6.7 http://www.vbulletin.com/forum/showthread.php?t=229950 if you're on vB 3.6.x

5. If you just upgraded to vB 3.5.x/3.6.x try to disable these 4 options:

Admin CP -> vBulletin Options -> Forums Home Page 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

mshahid
Thu 28th Jun '07, 12:02pm
Thanks eva2000 for quick response and tips. Before making these tweaks, I would like to further explain the issue here.

We are running two different footprints:

One is a web farm consisting of 2 Windows 2003 Server which are running IIS 6. The vBulletin version is 3.6.5 and the PHP version is 5.1.4. This footprint has just one vBulletin forum (version 3.6.5) and its the one which is having the issue with no load and usage. Still not released for general public usage.

The other web farm consists of 3 Windows 2000 Server which are running IIS 5. The vbulletin version is 3.6.3 and the PHP version is 5.1.4. This footprint is hosting 5 different vBuleltin forums with no speed and performance issues. Keep in mind that all these forums are pretty heavily used with lot of activity.

The MySql databases are on an entirely separate server apart from these footprints.

What I am wondering about is are there any know issues regarding hosting the vBulletin forum on Windows 2003 Server running IIS 6 as if it was a database, php or cache issue then it would be happening on both these footprints? We have tried three different versions of php on this footprint as mentioned in my first post.

Looking forward to you response. Thanks again.

eva2000
Thu 28th Jun '07, 12:12pm
I'm not too familiar with windows 2003 servers.. but only suggestions i have is

1. for all setups some of the above tips i.e. my.cnf will help.

2. to have same mysql client libary version hence mysql version on web servers as what you use on your dedicated mysql database servers so if you use MySQL 5.0.27 on dedicated mysql database servers to have same mysql version installed on web servers to use the same mysql version client libraries to connect to mysql.

3. For PHP caching on windows try Xcache

mshahid
Thu 28th Jun '07, 12:44pm
Do you have a good write up for installing XCache on Windows because the one in the link is not specific to Windows installation? Thanks....

eva2000
Sat 30th Jun '07, 10:08am
I'd check at http://xcache.lighttpd.net/wiki/InstallFromBinary and xcache forums http://forum.lighttpd.net/forum/4