Very high memory (ram) usage
i moved to linode a week ago and i installed serverpilot which i am using for 4 wordpress blog but unfortunately the issues followed me from shared hosting, i have been having this issue for a year now were i get notified of using too many resources. from my newrelic it gets to 107%
> total used free shared buffers cached
Mem: 1999 1964 34 29 96 1011
-/+ buffers/cache: 856 1142
Swap: 255 0 255
here from htop;
![](
8 Replies
@bryantrv:
Not sure how you are using serverpilot on Linode, but the memory looks OK- it shows the majority taken up by caching-
http://www.linuxatemyram.com/
That happened after i optimized the DB of all 4 blogs… check below
> root@webentrapments:~# free -m
total used free shared buffers cached
Mem: 1999 1830 169 0 7 42
-/+ buffers/cache: 1779 219
Swap: 255 234 21
root@webentrapments:~#
Here readings for the past 30M
@caker:
I don't see a problem here. Looks fine to me.
-Chris
Hello;
Here is a reading from newrelic
~~![](<URL url=)
> Mem 93.6 %
my database server is offline,~~
> 150828 19:45:56 [Warning] Using unique option prefix myisam-recover instead of myisam-recover-options is deprecated and will be removed in a future release. Please use the full name instead.
150828 19:45:56 [Note] Plugin 'FEDERATED' is disabled.
150828 19:45:56 InnoDB: The InnoDB memory heap is disabled
150828 19:45:56 InnoDB: Mutexes and rw_locks use GCC atomic builtins
150828 19:45:56 InnoDB: Compressed tables use zlib 1.2.8
150828 19:45:56 InnoDB: Using Linux native AIO
150828 19:45:56 InnoDB: Initializing buffer pool, size = 128.0M
InnoDB: mmap(137363456 bytes) failed; errno 12
150828 19:45:56 InnoDB: Completed initialization of buffer pool
150828 19:45:56 InnoDB: Fatal error: cannot allocate memory for the buffer pool
150828 19:45:56 [ERROR] Plugin 'InnoDB' init function returned error.
150828 19:45:56 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
150828 19:45:56 [ERROR] Unknown/unsupported storage engine: InnoDB
150828 19:45:56 [ERROR] Aborting
150828 19:45:56 [Note] /usr/sbin/mysqld: Shutdown complete
> #
The MySQL database server configuration file.
#
You can copy this to one of:
- "/etc/mysql/my.cnf" to set global options,
- "~/.my.cnf" to set user-specific options.
#
One can use all long options that the program supports.
Run program with –help to get a list of available options and with
--print-defaults to see which it would actually understand and use.
#
For explanations see
http://dev.mysql.com/doc/mysql/en/serve … ables.html">http://dev.mysql.com/doc/mysql/en/server-system-variables.html This will be passed to all mysql clients
It has been reported that passwords should be enclosed with ticks/quotes
escpecially if they contain "#" chars…
Remember to edit /etc/mysql/debian.cnf when changing the socket location.
[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
[mysqld]
#
* Basic Settings
#
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
lc-messages-dir = /usr/share/mysql
skip-external-locking
#
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
#
* Fine Tuning
#
key_buffer = 16M
maxallowedpacket = 16M
thread_stack = 192K
threadcachesize = 8
This replaces the startup script and checks MyISAM tables if needed
the first time they are touched
myisam-recover = BACKUP
max_connections = 100
table_cache = 64
thread_concurrency = 10
#
* Query Cache Configuration
#
querycachelimit = 1M
querycachesize = 16M
tmptablesize = 16M
maxheaptable_size = 16M
local-infile =0
#
* Logging and Replication
#
Both location gets rotated by the cronjob.
Be aware that this log type is a performance killer.
As of 5.1 you can enable the log at runtime!
generallogfile = /var/log/mysql/mysql.log
general_log = 1
#
Error log - should be very few entries.
#
log_error = /var/log/mysql/error.log
#
Here you can see queries with especially long duration
logslowqueries = /var/log/mysql/mysql-slow.log
longquerytime = 2
log-queries-not-using-indexes
#
The following can be used as easy to replay backup logs or for replication.
note: if you are setting up a replication slave, see README.Debian about
other settings you may need to change.
server-id = 1
log_bin = /var/log/mysql/mysql-bin.log
expirelogsdays = 10
maxbinlogsize = 100M
binlogdodb = includedatabasename
binlogignoredb = includedatabasename
#
* InnoDB
#
InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
Read the manual for more InnoDB related options. There are many!
#
* Security Features
#
Read the manual, too, if you want chroot!
chroot = /var/lib/mysql/
#
For generating SSL certificates I recommend the OpenSSL GUI "tinyca".
#
ssl-ca=/etc/mysql/cacert.pem
ssl-cert=/etc/mysql/server-cert.pem
ssl-key=/etc/mysql/server-key.pem
[mysqldump]
quick
quote-names
maxallowedpacket = 16M
[mysql]
no-auto-rehash # faster start of mysql but no tab completition
[isamchk]
key_buffer = 16M
#
* IMPORTANT: Additional settings that can override those from this file!
The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/