Simetrical
Thu 14th Dec '06, 2:34am
The board is: http://www.twcenter.net/forums/. It's been pretty slow lately, and has crashed a few times. It would be great if I could get some advice on this.
1. Is this on dedicated or shared virual server. If shared, how many sites share this server (ask web host if needed)
Shared with about fourteen other sites on one server. All are much less active, AFAIK.
2. your server specs.
CPU: 4 Xeon 2.0 GHz
Memory: 4 GB
OS: Linux. Not sure what distro, is there some way to figure out using root access in WHM?
Hard drives: A couple hundred GB total. Don't know the configuration.
Apache version: 1.3.37
PHP version: 5.2.0
MySQL version: 5.0.24
3. if you use mysql 4.x instead of mysql 3.23.x, do you have any innodb type databases/tables on your server ?
No.
4. if possible how mysql was compiled/installed
Don't know, but again, if there's some way to find out with root WHM I could.
5. your top stats
It hangs when I try to run this, but I ran the same queries manually to get the stats:
Max users online: 1,059
Max posts: 23,612
Max thread length: 10,818
Max thread views: 265,383
Max forum posts: 131,232
Also:
Threads: 43,176
Posts: 956,574
Members: 20,431
(pruned)
6. 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).
auto_increment_increment 1
auto_increment_offset 1
automatic_sp_privileges ON
back_log 50
basedir /
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 /usr/share/mysql/charsets/
collation_connection latin1_swedish_ci
collation_database latin1_swedish_ci
collation_server latin1_swedish_ci
completion_type 0
concurrent_insert 1
connect_timeout 30
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
div_precision_increment 4
engine_condition_pushdown OFF
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_blackhole_engine NO
have_compress YES
have_crypt YES
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 NO
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 1048576
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 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_support_xa ON
innodb_sync_spin_loops 20
innodb_table_locks ON
innodb_thread_concurrency 8
innodb_thread_sleep_delay 10000
interactive_timeout 30
join_buffer_size 1044480
key_buffer_size 67108864
key_cache_age_threshold 300
key_cache_block_size 1024
key_cache_division_limit 100
language /usr/share/mysql/english/
large_files_support ON
large_page_size 0
large_pages OFF
lc_time_names en_US
license GPL
local_infile ON
locked_in_memory OFF
log OFF
log_bin OFF
log_bin_trust_function_creators OFF
log_error
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 OFF
lower_case_table_names 0
max_allowed_packet 33553408
max_binlog_cache_size 4294967295
max_binlog_size 1073741824
max_connect_errors 1000
max_connections 2048
max_delayed_threads 20
max_error_count 64
max_heap_table_size 67107840
max_insert_delayed_threads 20
max_join_size 18446744073709551615
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 2147483647
myisam_recover_options OFF
myisam_repair_threads 1
myisam_sort_buffer_size 67108864
myisam_stats_method nulls_unequal
net_buffer_length 16384
net_read_timeout 30
net_retry_count 10
net_write_timeout 60
new OFF
old_passwords ON
open_files_limit 10250
optimizer_prune_level 1
optimizer_search_depth 62
pid_file /var/lib/mysql/loki.ogresnet.com.pid
port 0
preload_buffer_size 32768
prepared_stmt_count 0
protocol_version 10
query_alloc_block_size 131072
query_cache_limit 4194304
query_cache_min_res_unit 4096
query_cache_size 134217728
query_cache_type ON
query_cache_wlock_invalidate OFF
query_prealloc_size 65536
range_alloc_block_size 2048
read_buffer_size 1044480
read_only OFF
read_rnd_buffer_size 520192
relay_log_purge ON
relay_log_space_limit 0
rpl_recovery_rank 0
secure_auth OFF
server_id 0
skip_external_locking ON
skip_networking ON
skip_show_database OFF
slave_compressed_protocol OFF
slave_load_tmpdir /tmp/
slave_net_timeout 3600
slave_skip_errors OFF
slave_transaction_retries 10
slow_launch_time 2
socket /var/lib/mysql/mysql.sock
sort_buffer_size 2097144
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 CST
table_cache 1800
table_lock_wait_timeout 50
table_type MyISAM
thread_cache_size 500
thread_stack 196608
time_format %H:%i:%s
time_zone SYSTEM
timed_mutexes OFF
tmp_table_size 67108864
tmpdir /tmp/
transaction_alloc_block_size 8192
transaction_prealloc_size 4096
tx_isolation REPEATABLE-READ
updatable_views_with_limit YES
version 5.0.27-standard
version_comment MySQL Community Edition - Standard (GPL)
version_compile_machine i686
version_compile_os pc-linux-gnu
wait_timeout 30
7. MySQL stats from ssh telnet
Aborted_clients 170
Aborted_connects 239
Binlog_cache_disk_use 0
Binlog_cache_use 0
Bytes_received 2246
Bytes_sent 430107
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 0
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 130975
Created_tmp_disk_tables 0
Created_tmp_files 1923
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 1
Handler_read_key 7
Handler_read_next 2
Handler_read_prev 0
Handler_read_rnd 0
Handler_read_rnd_next 1
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 0
Key_blocks_used 57990
Key_read_requests 52457948
Key_reads 142887
Key_write_requests 236448
Key_writes 194861
Last_query_cost 0.000000
Max_used_connections 327
Not_flushed_delayed_rows 0
Open_files 2589
Open_streams 0
Open_tables 1800
Opened_tables 0
Qcache_free_blocks 3177
Qcache_free_memory 78054184
Qcache_hits 1242481
Qcache_inserts 483923
Qcache_lowmem_prunes 30990
Qcache_not_cached 2759
Qcache_queries_in_cache 13245
Qcache_total_blocks 31091
Questions 2237490
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 1
Slow_queries 0
Sort_merge_passes 0
Sort_range 0
Sort_rows 0
Sort_scan 0
Table_locks_immediate 1363326
Table_locks_waited 3076
Tc_log_max_pages_used 0
Tc_log_page_size 0
Tc_log_page_waits 0
Threads_cached 299
Threads_connected 28
Threads_created 327
Threads_running 1
Uptime 29799
8. is your vB the only thing on the server? or other scripts & sites which utilise php and mysql?
Thirteen other sites that use PHP and MySQL, although perhaps somewhat sparsely.
9. how many average and max concurrent users on your vB forum ? and what your cookie timeout is ?
Average users is 200–600 or thereabouts. Cookie timeout is 900 seconds (15 minutes).
10. create a file named phpinfo.php and place this code in it and post the url/link to it from your web site
http://www.twcenter.net/forums/index.php?do=phpinfo
11. 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 :
Again, dunno.
12. what version of vB are you running ?
3.6.4.
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
14. Post output from these 3 commands
Again, don't know.
Edit: Forgot to mention: server load is always at least around 2, frequently as high as 10, and occasionally up in the hundreds. I'm kind of a *nix n00b, but I get the impression that that's totally ridiculous load.
1. Is this on dedicated or shared virual server. If shared, how many sites share this server (ask web host if needed)
Shared with about fourteen other sites on one server. All are much less active, AFAIK.
2. your server specs.
CPU: 4 Xeon 2.0 GHz
Memory: 4 GB
OS: Linux. Not sure what distro, is there some way to figure out using root access in WHM?
Hard drives: A couple hundred GB total. Don't know the configuration.
Apache version: 1.3.37
PHP version: 5.2.0
MySQL version: 5.0.24
3. if you use mysql 4.x instead of mysql 3.23.x, do you have any innodb type databases/tables on your server ?
No.
4. if possible how mysql was compiled/installed
Don't know, but again, if there's some way to find out with root WHM I could.
5. your top stats
It hangs when I try to run this, but I ran the same queries manually to get the stats:
Max users online: 1,059
Max posts: 23,612
Max thread length: 10,818
Max thread views: 265,383
Max forum posts: 131,232
Also:
Threads: 43,176
Posts: 956,574
Members: 20,431
(pruned)
6. 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).
auto_increment_increment 1
auto_increment_offset 1
automatic_sp_privileges ON
back_log 50
basedir /
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 /usr/share/mysql/charsets/
collation_connection latin1_swedish_ci
collation_database latin1_swedish_ci
collation_server latin1_swedish_ci
completion_type 0
concurrent_insert 1
connect_timeout 30
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
div_precision_increment 4
engine_condition_pushdown OFF
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_blackhole_engine NO
have_compress YES
have_crypt YES
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 NO
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 1048576
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 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_support_xa ON
innodb_sync_spin_loops 20
innodb_table_locks ON
innodb_thread_concurrency 8
innodb_thread_sleep_delay 10000
interactive_timeout 30
join_buffer_size 1044480
key_buffer_size 67108864
key_cache_age_threshold 300
key_cache_block_size 1024
key_cache_division_limit 100
language /usr/share/mysql/english/
large_files_support ON
large_page_size 0
large_pages OFF
lc_time_names en_US
license GPL
local_infile ON
locked_in_memory OFF
log OFF
log_bin OFF
log_bin_trust_function_creators OFF
log_error
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 OFF
lower_case_table_names 0
max_allowed_packet 33553408
max_binlog_cache_size 4294967295
max_binlog_size 1073741824
max_connect_errors 1000
max_connections 2048
max_delayed_threads 20
max_error_count 64
max_heap_table_size 67107840
max_insert_delayed_threads 20
max_join_size 18446744073709551615
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 2147483647
myisam_recover_options OFF
myisam_repair_threads 1
myisam_sort_buffer_size 67108864
myisam_stats_method nulls_unequal
net_buffer_length 16384
net_read_timeout 30
net_retry_count 10
net_write_timeout 60
new OFF
old_passwords ON
open_files_limit 10250
optimizer_prune_level 1
optimizer_search_depth 62
pid_file /var/lib/mysql/loki.ogresnet.com.pid
port 0
preload_buffer_size 32768
prepared_stmt_count 0
protocol_version 10
query_alloc_block_size 131072
query_cache_limit 4194304
query_cache_min_res_unit 4096
query_cache_size 134217728
query_cache_type ON
query_cache_wlock_invalidate OFF
query_prealloc_size 65536
range_alloc_block_size 2048
read_buffer_size 1044480
read_only OFF
read_rnd_buffer_size 520192
relay_log_purge ON
relay_log_space_limit 0
rpl_recovery_rank 0
secure_auth OFF
server_id 0
skip_external_locking ON
skip_networking ON
skip_show_database OFF
slave_compressed_protocol OFF
slave_load_tmpdir /tmp/
slave_net_timeout 3600
slave_skip_errors OFF
slave_transaction_retries 10
slow_launch_time 2
socket /var/lib/mysql/mysql.sock
sort_buffer_size 2097144
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 CST
table_cache 1800
table_lock_wait_timeout 50
table_type MyISAM
thread_cache_size 500
thread_stack 196608
time_format %H:%i:%s
time_zone SYSTEM
timed_mutexes OFF
tmp_table_size 67108864
tmpdir /tmp/
transaction_alloc_block_size 8192
transaction_prealloc_size 4096
tx_isolation REPEATABLE-READ
updatable_views_with_limit YES
version 5.0.27-standard
version_comment MySQL Community Edition - Standard (GPL)
version_compile_machine i686
version_compile_os pc-linux-gnu
wait_timeout 30
7. MySQL stats from ssh telnet
Aborted_clients 170
Aborted_connects 239
Binlog_cache_disk_use 0
Binlog_cache_use 0
Bytes_received 2246
Bytes_sent 430107
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 0
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
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8. is your vB the only thing on the server? or other scripts & sites which utilise php and mysql?
Thirteen other sites that use PHP and MySQL, although perhaps somewhat sparsely.
9. how many average and max concurrent users on your vB forum ? and what your cookie timeout is ?
Average users is 200–600 or thereabouts. Cookie timeout is 900 seconds (15 minutes).
10. create a file named phpinfo.php and place this code in it and post the url/link to it from your web site
http://www.twcenter.net/forums/index.php?do=phpinfo
11. 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 :
Again, dunno.
12. what version of vB are you running ?
3.6.4.
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
14. Post output from these 3 commands
Again, don't know.
Edit: Forgot to mention: server load is always at least around 2, frequently as high as 10, and occasionally up in the hundreds. I'm kind of a *nix n00b, but I get the impression that that's totally ridiculous load.