There is a problem with mysql and server load. Some how mysql usage is going to over 100, but server load is not increasing, but it is crashing more often.
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5931 mysql 16 0 111m 20m 3888 S 71 2.1 10488:45 /usr/sbin/mysqld --basedir=/ --datadir=/var
What could cause the problem? I did mysqladmin pr and only 2 database connections are existing.
when mysql has heavy load average what else can be done rather than restarting mysql service.
View 6 Replies View RelatedMySQL the last few days seems to be constantly the most demanding process in top, which it never was before. As far as I can tell, nothing has substantially changed with regards to traffic to MySQL driven sites on the server. Is there anything that might be wrong with the databases, etc., that might throw MySQL into a tizzy?
View 8 Replies View RelatedJust wondering if mysql load balancing is possible in a shared environment.
Example:
I have 3 shared accounts. On one server, I have the write and the 2nd and 3rd server I have the read (select). Or vice versa .. Would it be possible to create a php script to perform this function?
So the site got featured on [url]and now the server is drowning...
The Coppermine Gallery usually hovers around 30~50 users daily and now, 1800, and im at a lost as how I should configure mysql to take on such a load. right now it takes about 10 secs or more to load a page and sometimes it would time out. Because it si coppermine, all pages are dynamic and can't be cached -_-"
Here's the my.cnf right now after i played around with the numbers
server spec
Opteron 170 (2ghz)
2gb ram
250 7200rpm
[mysqld]
set-variable=local-infile=0
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1
#skip-networking
back_log = 75
key_buffer = 256M
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 = 7200
max_connections = 600
connect_timeout = 100
wait_timeout = 12000
tmp_table_size = 100M
max_heap_table_size = 64M
max_allowed_packet = 15M
max_connect_errors = 9999999
read_rnd_buffer_size = 524288
bulk_insert_buffer_size = 8M
query_cache_limit = 40M
query_cache_size = 150M
query_cache_type = 1
query_prealloc_size = 65536
tmp_table_size = 64M
query_alloc_block_size = 131072
default-storage-engine = MyISAM
[mysql.server]
user=mysql
basedir=/var/lib
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
nice = -5
open_files_limit = 8192
[mysqldump]
quick
max_allowed_packet = 16M
[myisamchk]
key_buffer = 64M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M
httpd.conf
Timeout 20
#
# KeepAlive: Whether or not to allow persistent connections (more than
# one request per connection). Set to "Off" to deactivate.
#
KeepAlive Off
#
# MaxKeepAliveRequests: The maximum number of requests to allow
# during a persistent connection. Set to 0 to allow an unlimited amount.
# We recommend you leave this number high, for maximum performance.
#
MaxKeepAliveRequests 100
#
# KeepAliveTimeout: Number of seconds to wait for the next request from the
# same client on the same connection.
#
KeepAliveTimeout 15
##
## Server-Pool Size Regulation (MPM specific)
##
# prefork MPM
# StartServers: number of server processes to start
# MinSpareServers: minimum number of server processes which are kept spare
# MaxSpareServers: maximum number of server processes which are kept spare
# ServerLimit: maximum value for MaxClients for the lifetime of the server
# MaxClients: maximum number of server processes allowed to start
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule prefork.c>
StartServers 8
MinSpareServers 5
MaxSpareServers 20
ServerLimit 200
MaxClients 200
MaxRequestsPerChild 1500
</IfModule>
# worker MPM
# StartServers: initial number of server processes to start
# MaxClients: maximum number of simultaneous client connections
# MinSpareThreads: minimum number of worker threads which are kept spare
# MaxSpareThreads: maximum number of worker threads which are kept spare
# ThreadsPerChild: constant number of worker threads in each server process
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule worker.c>
StartServers 2
MaxClients 150
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25
MaxRequestsPerChild 0
</IfModule>
How can i check (using SSH) which databases/users cause server load to mysql ?
I've tried "mysqladmin proc stat" but it shows just the current. How can i get stats of the last 24 hours for example ?
I've also seen slow connections stats. What is the command to check more detailed report of the slow connections; which databases caused it etc', in the last 24 hours for example as well.
Anyone know a good script that I can run with cron or something? Mysql seems to be the #1 problem with a lot of my web sites, a restart usually fixes it right away for me, but I can't keep restarting my servers everyday manually.
View 1 Replies View Relatedwe have mysql 5 setup and this morning at around 10:07 tables started disappearing as they were being accessed by different clients.
Databases that had 40 tables now had 30, etc. Only the tables that were attempted to be accessed were gone. This is the first time something like this has happened.
The following output was given:
This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, improperly built, or misconfigured. This error can also be caused by malfunctioning hardware.
We will try our best to scrape up some info that will hopefully help diagnose the
problem, but since we have already crashed, something is definitely wrong and this may fail.
key_buffer_size=8388600
read_buffer_size=131072
max_used_connections=208
max_connections=500
threads_connected=156
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_connections = 1096188 K
bytes of memory
Hope that's ok; if not, decrease some variables in the equation.
thd=0xaf82930
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
Cannot determine thread, fp=0xb143932c, backtrace may not be correct.
Stack range sanity check OK, backtrace follows:
0x816b1a0
0xaf1898
0x20
0x81ac49d
0x8182914
0x8189010
0x8189df1
0x818a738
0x818ae5c
0xaeb371
0x9c4ffe
New value of fp=(nil) failed sanity check, terminating stack trace!
Please read [url]and follow instructions on how to resolve the stack trace. Resolved
stack trace is much more helpful in diagnosing the problem, so please do
resolve it
Trying to get some variables.
Some pointers may be invalid and cause the dump to abort...
thd->query at 0xaf36620 = SELECT * FROM `sessions` WHERE `PHPSESSID` = '5e6775cd3c6f187d8c575127ba73be19'
thd->thread_id=113407
The manual page at [url]contains
information that should help you find out what is causing the crash.
mysqld: my_new.cc:51: int __cxa_pure_virtual(): Assertion `"Pure virtual method called." == "Aborted"' failed.
Number of processes running now: 0
070427 10:07:49 mysqld restarted
070427 10:07:50 InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Restoring possible half-written data pages from the doublewrite
InnoDB: buffer...
070427 10:07:53 InnoDB: Starting log scan based on checkpoint at
InnoDB: log sequence number 0 227822203.
InnoDB: Doing recovery: scanned up to log sequence number 0 227822203
070427 10:07:53 InnoDB: Started; log sequence number 0 227822203
070427 10:07:54 [Note] /usr/sbin/mysqld: ready for connections.
I have a site that is eating up my server resources and need to know what the best solution for this is. I'm thinking of getting another server just for mysql but do not know what specs the server should be to handle the current traffic/database load and have the site run smoothly without slowing down to a snail's pace.
An alternative is to get another server just for the videos being served and leave the database and html on the current server. This is where I'm stuck and don't know what route to take with this.
My current server stats:
Dual Xeon 5130
4GB RAM
250GB
50 Mbit/sec
CentOS 3.9
Website traffic stats:
15,000 visitors/day
150,000 pageviews/day
Serving videos
I've attached screenshots of top and bandwidth usage per day. Hopefully with this information you could tell me if I need another server or if there are any things I can do to the current server to help things move faster.
Anyone know of some good server load testers ( commercial )?
Im not looking for application based load testing, I need real web server load testing... need to see how much traffic this one site can take before it cries.
I am just a beginner and it is about a month that the mysql loads on my server is so high , I have checked the mysql processlist via cpanel and there is no account that takes high mysql and make it high , and even I have checked for any possible rotten databases. but still the server load is so high and I can not control it , even when I restart it just after a minute it goes up again.
just the spamd command takes a high CPU usage sometimes. what it should be from? the spamd for a special account!
I need to optimize mysql , and need help. please do not tell me to hire an expert , just help me thanks
and another question is that how can I check which account is sending spam and stop it?
I have a dual xeon server that host around 15 small website, but these days I see that the load generated from mysql is very high as you can see below is consumes 32.6 CPU
mysql 32.60 1.20 0.0
how I can know what is the cause of this load?
MySQL.
Quote:
top - 18:43:24 up 18 days, 18:05, 1 user, load average: 145.13, 92.77, 40.84
Tasks: 145 total, 10 running, 134 sleeping, 0 stopped, 1 zombie
Cpu(s): 28.7% us, 70.6% sy, 0.0% ni, 0.0% id, 0.7% wa, 0.1% hi, 0.0% si
Mem: 1034060k total, 605968k used, 428092k free, 21400k buffers
Swap: 1020088k total, 165076k used, 855012k free, 119448k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
6102 mysql 16 0 343m 146m 2868 S 364 14.5 1441:52 mysqld
My server almost went dead... until I rebooted MySQL.
MySql die with high load problem?
My server running: Server Load124.40 (2 cpus)[url] Memory Used70 %[url]
Server info:
Processor #1 Vendor: GenuineIntel
Processor #1 Name: Intel(R) Xeon(R) CPU 3060 @ 2.40GHz
Processor #1 speed: 2394.840 MHz
Processor #1 cache size: 4096 KB
Processor #2 Vendor: GenuineIntel
Processor #2 Name: Intel(R) Xeon(R) CPU 3060 @ 2.40GHz
Processor #2 speed: 2394.840 MHz
Processor #2 cache size: 4096 KB
Memory Information Memory: 4148800k/4718592k available (1883k kernel code, 43336k reserved, 761k data, 188k init, 3275648k highmem)
i'm using Vista RTM, and so then
my PHP module can load mysql 5.0.27.
Apache version: 2.0.55 ( ok )
PHP version: 5.2.0 ( unzip package - ok)
MySQL version: 5.0.27 ( connection is ok only with cmd line )
so, what's the problem.
i tried with this solution:
[url]
but it's take no effect.
what's the step i have been lost?
it was very fast until mysql upgraded to 5.0.45 it was 4.. i can’t even turn my forum if it is a busy time cos it is so slow i get page not found after a while but when it is quiet it is not too bad... but it was alot more faster with mysql 4 i don't really want to downgrade please give me some ideas to fix this issue ...........
View 3 Replies View Relatedmy server
Intel(R) Xeon(R) CPU E5310
1g
when i use a software update my site.maybe the sofe use mysql and httpd much.
the load of the server ofen goes high.i can only restart httped or mysql .
some info about the server when load is high.
[root@server ~]# free
total used free shared buffers cached
Mem: 1033676 1018980 14696 0 4352 428756
-/+ buffers/cache: 585872 447804
Swap: 2040244 132660 1907584
[root@server ~]# ps aux | grep mysql | wc -l
3
[root@server ~]# ps aux | grep httpd | wc -l
66
[root@server ~]# mysqladmin -u root -p extended-status
Enter password:
+----------------------------+-----------+
| Variable_name | Value |
+----------------------------+-----------+
| Aborted_clients | 2 |
| Aborted_connects | 89 |
| Binlog_cache_disk_use | 0 |
| Binlog_cache_use | 0 |
| Bytes_received | 61741575 |
| Bytes_sent | 11783074 |
| Com_admin_commands | 150 |
| Com_alter_db | 0 |
| Com_alter_table | 0 |
| Com_analyze | 0 |
| Com_backup_table | 0 |
| Com_begin | 0 |
| Com_change_db | 33678 |
| 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 | 3327 |
| 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 | 6939 |
| Com_insert_select | 0 |
| Com_kill | 0 |
| Com_load | 0 |
| Com_load_master_data | 0 |
| Com_load_master_table | 0 |
| Com_lock_tables | 96 |
| Com_optimize | 1 |
| 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 | 110 |
| 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 | 122075 |
| Com_set_option | 32609 |
| 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 |
I have a cheap managed server and support is of little help BUT they will do what I tell them, where should I tell them to start to fix high mysql load?
The server currently has a large IPB forum, a large 4images gallery, and a couple popular Wordpress blogs, and this combo keeps taking mysql down.
What can I do server side to help this? And what shouldn't I do?
My server very slow and the is very loaded. How can I fix this problem? My server specialities and loaded softwares which are below. And sometimes there is "mysql connect failed", "Lost connection to MySQL server during query" errors. Thanks for kinds...
---
Speed:
100Mbs
LOAD:
Load avarage : 5-30 +
Cpu usage: %30-95 +
Ram usage: %70-95 +
SYSTEM INFO:
2gb ram, P4 3200 cpu, 2x250 GB SATAII hdd, Plesk 8.1.1, centos 4.5 os, apache 2.0.59, php 4.4.7, mysql 4.1.21(client),
mysql 5.0.41(server), zend optimizer, kernel 2.6.19.1.SM #5 SMP, mod_evasive, plesk firewall, qscanq+clamav,
spamassain and system up-to-date.
SOFTWARE:
phpbb 2.0.22
4images 1.7.4
joomla 1.0.12
ONLINE USER:
100-500 user online
on 2 website
How to optimization?
I installed tuning-primer.sh
but I can’t understand this code:
I don’t know. How to set values, example?
NOTE: Red value
-------------------------
[root@lavinya bin]# tuning-primer.sh
-- MYSQL PERFORMANCE TUNING PRIMER --
- By: Matthew Montgomery -
MySQL Version 5.0.41-log i686
Uptime = 3 days 4 hrs 34 min 17 sec
Avg. qps = 92
Total Questions = 25406284
Threads Connected = 1
Server has been running for over 48hrs.
It should be safe to follow these recommendations
To find out more information on how each of these
runtime variables effects performance visit:
.............
SLOW QUERIES
Current long_query_time = 5 sec.
You have 115 out of 25406302 that take longer than 5 sec. to complete
The slow query log is enabled.
Your long_query_time seems to be fine
WORKER THREADS
Current thread_cache_size = 8
Current threads_cached = 7
Current threads_per_sec = 0
Historic threads_per_sec = 0
Your thread_cache_size is fine
MAX CONNECTIONS
Current max_connections = 500
Current threads_connected = 2
Historic max_used_connections = 110
The number of used connections is 22% of the configured maximum.
Your max_connections variable seems to be fine.
MEMORY USAGE
Max Memory Ever Allocated : 835 M
Configured Max Per-thread Buffers : 3 G
Configured Max Global Buffers : 46 M
Configured Max Memory Limit : 3 G
Total System Memory : 3.96 G
Max memory limit exceeds 85% of total system memory
KEY BUFFER
Current MyISAM index space = 35 M
Current key_buffer_size = 32 M
Key cache miss rate is 1 : 73658
Key buffer fill ratio = 34.00 %
Your key_buffer_size seems to be too high.
Perhaps you can use these resources elsewhere
QUERY CACHE
Query cache is enabled
Current query_cache_size = 4 M
Current query_cache_used = 1 M
Current query_cach_limit = 1 M
Current Query cache fill ratio = 29.83 %
MySQL won't cache query results that are larger than query_cache_limit in size
SORT OPERATIONS
Current sort_buffer_size = 2 M
Current record/read_rnd_buffer_size = 1 M
Sort buffer seems to be fine
JOINS
Current join_buffer_size = 1.00 M
You have had 14127 queries where a join could not use an index properly
You should enable "log-queries-not-using-indexes"
Then look for non indexed joins in the slow query log.
If you are unable to optimize your queries you may want to increase your
join_buffer_size to accommodate larger joins in one pass.
Note! This script will still suggest raising the join_buffer_size when
ANY joins not using indexes are found.
OPEN FILES LIMIT
Current open_files_limit = 2500 files
The open_files_limit should typically be set to at least 2x-3x
that of table_cache if you have heavy MyISAM usage.
Your open_files_limit value seems to be fine
TABLE CACHE
Current table_cache value = 256 tables
You have a total of 636 tables
You have 256 open tables.
Current table_cache hit rate is 1% , while 100% of your table cache is in use
You should probably increase your table_cache
TEMP TABLES
Current max_heap_table_size = 16 M
Current tmp_table_size = 32 M
Of 2271787 temp tables, 3% were created on disk
Effective in-memory tmp_table_size is limited to max_heap_table_size.
Created disk tmp tables ratio seems fine
TABLE SCANS
Current read_buffer_size = 1 M
Current table scan ratio = 28 : 1
read_buffer_size seems to be fine
TABLE LOCKING
Current Lock Wait ratio =1 : 112
You may benefit from selective use of InnoDB.
If you have long running SELECT's against MyISAM tables and perform
frequent updates consider setting 'low_priority_updates=1'
If you have a high concurrentcy of inserts on Dynamic row-length tables
consider setting 'concurrent_insert=2'.
[root@lavinya bin]#
----------------------
if your reply me message I will be happy
Quad Core server, 4GB ram. MySQL runs at all times between 200 - 300% CPU. Server does only 5K unique per day, and runs zen cart.
I am at a loss, I have experiece with tracking dowen reasons for this but this one has stumpped me. So I was hoping to get new eyes on this and see if anyone had any ideas.
my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
#old_passwords=1
skip-locking
skip-name-resolve
skip-bdb
key_buffer = 64M
max_allowed_packet = 16M
table_cache = 2048
sort_buffer_size = 1M
read_buffer_size = 1M
read_rnd_buffer_size = 8M
myisam_sort_buffer_size = 64M
thread_cache_size = 16
thread_concurrency = 8
query_cache_size = 25M
query_cache_type = 1
tmp_table_size=64M
back_log = 100
max_connect_errors = 10000
join_buffer_size=1M
open-files = 20000
interactive_timeout = 300
wait_timeout = 300
max_connections=200
# The following directives should be commented out
# but included as they are things that get added
# very frequently on tickets. These are more in a
# need-this-feature basis.
# The below 2 cannot be set on the fly. If the customer already has
# InnoDB tables and wants to change the size of the InnoDB tablespace
# and InnoDB logs, then:
# 1. Run a full backup with mysqldump
# 2. Stop MySQL
# 3. Move current ibdata and ib_logfiles out of /var/lib/mysql
# 4. Uncomment the below innodb_data_file_path and innodb_log_file_size
# 5. Start MySQL (it will recreate new InnoDB files)
# 6. Restore data from backup
#innodb_data_file_path = ibdata1:2000M;ibdata2:10M:autoextend
#innodb_log_file_size = 100M
innodb_buffer_pool_size = 64M
innodb_additional_mem_pool_size = 8M
#log-slow-queries=/var/lib/mysqllogs/slow-log
#long_query_time=2
#log-queries-not-using-indexes
#log-bin=/var/lib/mysqllogs/bin-log
#log-slave-updates
#expire_logs_days = 14
server-id = 1
[mysql.server]
user=mysql
#basedir=/var/lib
[mysqld_safe]
err-log=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
open_files_limit=65536
mysqladmin status
Uptime: 1458 Threads: 1 Questions: 366975 Slow queries: 0 Opens: 401 Flush tables: 1 Open tables: 395 Queries per second avg: 251.698
SHOW STATUS;
mysql> SHOW STATUS;
+-----------------------------------+----------+
| Variable_name | Value |
+-----------------------------------+----------+
| Aborted_clients | 0 |
| Aborted_connects | 8 |
| Binlog_cache_disk_use | 0 |
| Binlog_cache_use | 0 |
| Bytes_received | 116 |
| Bytes_sent | 157 |
| Com_admin_commands | 0 |
| Com_alter_db | 0 |
| Com_alter_table | 0 |
| Com_analyze | 0 |
| Com_backup_table | 0 |
| Com_begin | 0 |
| Com_call_procedure | 0 |
| Com_change_db | 0 |
| 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_create_user | 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 | 1 |
| 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 | 0 |
| 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 | 1569 |
| Created_tmp_disk_tables | 0 |
| Created_tmp_files | 5 |
| 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 | 0 |
| Handler_read_key | 0 |
| Handler_read_next | 0 |
| Handler_read_prev | 0 |
| Handler_read_rnd | 0 |
| Handler_read_rnd_next | 0 |
| Handler_rollback | 0 |
| Handler_savepoint | 0 |
| Handler_savepoint_rollback | 0 |
| Handler_update | 0 |
| Handler_write | 132 |
| Innodb_buffer_pool_pages_data | 307 |
| Innodb_buffer_pool_pages_dirty | 0 |
| Innodb_buffer_pool_pages_flushed | 1 |
| Innodb_buffer_pool_pages_free | 3787 |
| Innodb_buffer_pool_pages_latched | 0 |
| Innodb_buffer_pool_pages_misc | 2 |
| Innodb_buffer_pool_pages_total | 4096 |
| Innodb_buffer_pool_read_ahead_rnd | 2 |
| Innodb_buffer_pool_read_ahead_seq | 0 |
| Innodb_buffer_pool_read_requests | 48197 |
| Innodb_buffer_pool_reads | 205 |
| Innodb_buffer_pool_wait_free | 0 |
| Innodb_buffer_pool_write_requests | 1 |
| Innodb_data_fsyncs | 7 |
| Innodb_data_pending_fsyncs | 0 |
| Innodb_data_pending_reads | 0 |
| Innodb_data_pending_writes | 0 |
| Innodb_data_read | 7213056 |
| Innodb_data_reads | 221 |
| Innodb_data_writes | 7 |
| Innodb_data_written | 35328 |
| Innodb_dblwr_pages_written | 1 |
| Innodb_dblwr_writes | 1 |
| Innodb_log_waits | 0 |
| Innodb_log_write_requests | 0 |
| Innodb_log_writes | 2 |
| Innodb_os_log_fsyncs | 5 |
| Innodb_os_log_pending_fsyncs | 0 |
| Innodb_os_log_pending_writes | 0 |
| Innodb_os_log_written | 1024 |
| Innodb_page_size | 16384 |
| Innodb_pages_created | 0 |
| Innodb_pages_read | 307 |
| Innodb_pages_written | 1 |
| 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 | 165 |
| Innodb_rows_updated | 0 |
| Key_blocks_not_flushed | 0 |
| Key_blocks_unused | 52512 |
| Key_blocks_used | 1074 |
| Key_read_requests | 24616475 |
| Key_reads | 1170 |
| Key_write_requests | 11301 |
| Key_writes | 4948 |
| Last_query_cost | 0.000000 |
| Max_used_connections | 13 |
| Not_flushed_delayed_rows | 0 |
| Open_files | 495 |
| Open_streams | 0 |
| Open_tables | 395 |
| Opened_tables | 0 |
| Prepared_stmt_count | 0 |
| Qcache_free_blocks | 440 |
| Qcache_free_memory | 2620672 |
| Qcache_hits | 293141 |
| Qcache_inserts | 69381 |
| Qcache_lowmem_prunes | 60094 |
| Qcache_not_cached | 20918 |
| Qcache_queries_in_cache | 1338 |
| Qcache_total_blocks | 5755 |
| Questions | 394590 |
| 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 | 173929 |
| Table_locks_waited | 3 |
| Tc_log_max_pages_used | 0 |
| Tc_log_page_size | 0 |
| Tc_log_page_waits | 0 |
| Threads_cached | 11 |
| Threads_connected | 2 |
| Threads_created | 13 |
| Threads_running | 2 |
| Uptime | 1540 |
| Uptime_since_flush_status | 1540 |
+-----------------------------------+----------+
I have one server where cPanel WHM displays the load averages at the top right, but another server where it doesn't. How do I enable this? And what do the three different numbers shown (e.g. "Load Averages: 0.99 1.17 1.43") stand for?
way to get MySQL stats such as queries per day and things like that?
if it was possible to load vhosts from a MySQL database and the only solutions i found didnt work for me. Im running Apache on Windows. Has anyone seen anything that would work with Windows? The only alternative i can think of is to read the database info using PHP and output it to a vhosts config file. I dont want to do that though because it means restarting the server to load the new config and i hear that a lot of vhosts slows the server down
View 4 Replies View RelatedI'm hosting about 6 private websites on my server, and some have problems.
My biggest website is a vb forum with 30.000 members and 1.5 million posts.
When i browse with firefox i see that vb forum loads fast, but phpads which is integrated on the top and footer loads very slow. When i browse with IE, it takes like 10 seconds before the whole site is loaded and sometimes IE even crashes.
When i try to login on another website / admin panel (oscommerce), i get a mysql gone away error, that means timeout. But why does it show that? I ran mysqlreport and can't find anything why it should display mysql gone away.
# ./mysqlreport
MySQL 5.0.15-standard uptime 3 19:36:47 Mon Feb 5 11:08:10 2007
__ Key _________________________________________________________________
Buffer usage 78.94M of 96.00M %Used: 82.23
Write ratio 0.60
Read ratio 0.00
__ Questions ___________________________________________________________
Total 19.61M 59.47/s
Slow 9 0.00/s %Total: 0.00 %DMS: 0.00
DMS 7.17M 21.74/s 36.56
__ Table Locks _________________________________________________________
Waited 7.57k 0.02/s %Total: 0.05
Immediate 16.50M 50.03/s
__ Tables ______________________________________________________________
Open 1.27k of 1800 %Cache: 70.56
Opened 1.82k 0.01/s
__ Connections _________________________________________________________
Max used 47 of 500 %Max: 9.40
Total 2.62M 7.95/s
__ Created Temp ________________________________________________________
Disk table 6.77k 0.02/s
Table 635.25k 1.93/s
File 50.37k 0.15/s
I can't find any problems on the server which may lead to this strange problem.
The server load is normal, around 1 to 1.5. No weird errors in the apache error log or system log.
This strange behaviour started 2 weeks ago, and appears 2 to 3 time a week.
The system is running:
centos 4.3 64-bit
kernel 2.6.16.17 #1 SMP
directadmin 1.29.0
mysql 5.0.15
php 5.2
apache 2
Zend optimizer 3.2.0
Eaccelerator 1.95
One thing i noticed is that every night when the directadmin cron finished, the server acts normal again.
The directadmin cronjobs are:
* * * * * root /usr/local/directadmin/dataskq
2 0-23/6 * * * root echo 'action=vacation&value=all' >> /usr/local/directadmin/data/task.queue;
#5 5 * * 0 root /sbin/quotaoff -a; /sbin/quotacheck -augm; /sbin/quotaon -a;
20 4 1 * * root echo 'action=reset&value=all' >> /usr/local/directadmin/data/task.queue
0 4 * * * root echo 'action=check&value=license' >> /usr/local/directadmin/data/task.queue
10 0 * * * root /usr/local/directadmin/plugins/awstats/hooks/cgi-bin/awstats_updateall.pl now -awstatsprog=/usr/local/directadmin/plugins/awstats/hooks/cgi-bin/awstats.pl && echo 'action=tally&value=all' >> /usr/local/directadmin/data/task.queue
My Server Is down nearly every day in the last three days
I think one of my clients is sending emails from his forum to his members.
How can I know who is he, And most important can I stop him from emailing his members?
Also,
How can I find out which account is making the biggest load on MySQL?
I currently have one server a
Dual Xeon 5130 2GHZ (woodcrest)
2GB Ram.
Running cPanel/WHM
Now I run a website that is VERY PHP & MySQL Intensive and MySQL is ALWAYS the top of the process list, hogging a ton of usage. It's getting to the point where the site is needed a second server and I know there's a few options; but I'm not sure which one would be the best.
They way I see it my two options are getting a 2nd server and setting up the two to do load balancing, or getting a 2nd server and setting one up for just Apache and the Other for MySQL and using the 2nd as a remote SQL server.
If I do the Apache on a seperate server would I need such a powerful server? And if I also would want to upgrade this server along with getting a 2nd server would I be better of upgrading to 4GB of RAM or upgrading the processors?
I'm having the oddest issue. For some reason, some of the websites on my server load fine, and some take a really long time to load (2 minutes).
Now, the server load is fine, and the size of the sites aren't the issue either. I've restarted Apache and a couple more services, and still the same sites seem to load very slow.
What could be causing this since it's only effecting certain websites?
I was wondering if it is possible to cluster 2 web servers and 2 mysql servers with only one server working as load balancer.
I am planning to use LVS (ldirectord and heartbeat).
Let's say I have 3 IPs allocated to the load balancing server.
111.222.111.222 (Main IP)
111.222.111.223 (Web Load Balancing IP)
111.222.111.224 (MySQL Load Balancing IP)
If a connection is made to .223 it would pass the request to one of the web nodes.
If a connection is made to .224 it would pass the request to one of the MySQL nodes.
Is it possible to do this?
If not, can I run, for example, nginx on 223 IP address to provide forward proxy? (Then it would not be able to HA but the main point is to load balance so)
Also, what would be the best way to keep the data same on both web servers? This is a web cluster for a very high traffic forum with a lot of uploads every hour so it has to do real time synchronization. I heard that DRDB is only one way and not two way so I'm not going to be able to use this.
I keep getting this error :
MySQL Error : MySQL server has gone away
How do I fix it?
my.cnf contents
Quote:
[mysqld]
safe-show-database
old_passwords
back_log = 75
skip-innodb
max_connections = 800
key_buffer = 48M
myisam_sort_buffer_size = 64M
join_buffer_size = 1M
read_buffer_size = 1M
sort_buffer_size = 2M
table_cache = 3000
thread_cache_size = 128
wait_timeout = 90
connect_timeout = 30
tmp_table_size = 128M
max_heap_table_size = 64M
max_allowed_packet = 256M
net_buffer_length = 16384
max_connect_errors = 10
thread_concurrency = 4
read_rnd_buffer_size = 786432
bulk_insert_buffer_size = 8M
query_cache_limit = 3M
query_cache_size = 48M
query_cache_type = 1
query_prealloc_size = 262144
query_alloc_block_size = 65536
transaction_alloc_block_size = 8192
transaction_prealloc_size = 4096
default-storage-engine = MyISAM
max_user_connections = 500
[mysqld_safe]
nice = -5
open_files_limit = 8192
[mysqldump]
quick
max_allowed_packet = 16M
[myisamchk]
key_buffer = 64M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M
[mysqlhotcopy]
interactive-timeout
I've been having trouble with my VPS for a while now. In the QoS alerts page in Virtuozzo it seems to be a problem with numtcpsock and tcprcvbuf, mainly numtcpsock.
Copy these into the browser:
i18.photobucket.com/albums/b106/gnatfish/qosnumtcpsock2.jpg
And when i run cat /proc/user_beancounters:
i18.photobucket.com/albums/b106/gnatfish/beancounters2.jpg
This line is particularly scary:
numtcpsock 164 164 166 166 7321
What do i need to do, to get the website running again? It's only one site on the vps a proxy. So i thought a vps would be able to handle one proxy.
Any good and simple script to see Server status, server load, bandwidth, etc...?
is there like a simple script where it shows me the server info?
Like how much RAM is being used, bandwidth, load, etc?
We have CentOS 4 and WHM 11 on server .
Now-a-days server is having too much load due to http and in access logs we see following message :
========================================
127.0.0.1 - - [11/Oct/2008:01:40:02 -0700] "OPTIONS * HTTP/1.0" 200 -
127.0.0.1 - - [11/Oct/2008:01:40:03 -0700] "OPTIONS * HTTP/1.0" 200 -
127.0.0.1 - - [11/Oct/2008:01:40:02 -0700] "OPTIONS * HTTP/1.0" 200 -=============================================
And due to this there is load on server. We are not able to understand why this is happening and how to stop this. So please suggest with some solution.
