I am trying to set various mysql settings in a mysql 8.0.30 instance on Windows 11 but my values are ignored.
Startup parameters for the mysql80 service are:
"C:\Program Files\MySQL\MySQL Server 8.0\bin\mysqld.exe" --defaults-file="C:\ProgramData\MySQL\MySQL Server 8.0\my.ini" MySQL80
If I look at that my.ini file I have:
[mysqld]
disable_log_bin
sort_buffer_size = 4194304
max_connections = 500
innodb_buffer_pool_size = 3221225472
If I add a nonsense setting here, mysql refuses to start up, so I know the file is being read
If I run 'mysqladmin variables' it is clearly ignoring my variables:
C:\ProgramData\MySQL\MySQL Server 8.0>mysqladmin variables -u root --password=password | grep -e innodb_buffer_pool_size -e max_connections
mysqladmin: [Warning] Using a password on the command line interface can be insecure.
| innodb_buffer_pool_size | 134217728
|
| max_connections | 151
|
| mysqlx_max_connections | 100
Does anyone have any idea where the my.ini settings are getting overridden?
On Linux, mysql 8, placing those variables in the [mysqld] section (of /etc/mysql/mysql.conf.d/mysqld.cnf) does work.
OK so the answer is, when you install on Windows the config file (my.ini) already contains these settings and there's no warning that you have added a dupe. It just silently takes the value nearest the end of the file.
When you install on Linux the config file (my.cnf) already contains these settings too, but they are commented out.
Related
I'm trying to export my current F5 bigIP configuration into a file and later create a replica of the same bigIP with that configuration.
This reference mentioned following this:
Create the UCS archive file by using the following command syntax, replacing with the full path to the UCS archive file:
tmsh save /sys ucs <path/to/UCS>
I logged in to my bigIP, but when trying this, it gives me error. What is the problem? How to fix it?
Syntax Error: "ucs" unexpected argument
You can verify the syntax within the TMSH shell just like on a Cisco. Just enter tmsh and then type save and hit ? from there you can also use tab to complete the command.
This command should save a dated ucs file to your /var/local/ucs directory.
[yourbigip] # tmsh save sys ucs "$(date | tr -d ':' | tr -d )".ucs
You can always find additional help at https://devcentral.f5.com.
Again I need your help.
I'm trying to put my java web site online.
What I use :
MySQL server : command line mysql -V, result : mysql Ver 15.1 Distrib 10.1.23-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2
Cayenne
Debian server
Java (Vaadin)
Packet for query is too large (4739923 > 1048576). You can change this
value on the server by setting the max_allowed_packet' variable.
What I tried :
1. Like the error said, I tried to change the value on the server by doing :
Log on my server
Connect to MySQL with : mysql -u root
Enter : SET GLOBAL max_allowed_packet=1073741824;
then, restart the server with : /etc/init.d/mysql restart
But I still have the error.
2. I took a look to : How to change max_allowed_packet size
But, When I did the nano /etc/mysql/my.cnf, the file looks like (I don't have any [mysql]) :
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Fri Nov 10 23:57:02 2017 from 82.236.220.195
root#XXXX:~# nano /etc/mysql/my.cnf
GNU nano 2.7.4 File: /etc/mysql/my.cnf Modified
# 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.
#
# This group is read both both by the client and the server
# use it for options that affect everything
#
[client-server]
# The MariaDB configuration file
#
# The MariaDB/MySQL tools read configuration files in the following order:
# 1. "/etc/mysql/mariadb.cnf" (this file) to set global defaults,
# 2. "/etc/mysql/conf.d/*.cnf" to set global options.
# 3. "/etc/mysql/mariadb.conf.d/*.cnf" to set MariaDB-only options.
# 4. "~/.my.cnf" to set user-specific options.
#
# If the same option is defined multiple times, the last one will apply.
#
# 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.
#
# This group is read both both by the client and the server
# use it for options that affect everything
#
[client-server]
# Import all .cnf files from configuration directory
!includedir /etc/mysql/conf.d/
!includedir /etc/mysql/mariadb.conf.d/
In mysql, the folders/files in the 'mysql' folder is :
Any hint will be very appreciate!
Thanks
EDIT: In /etc/mysql/mariadb.conf.d/50-server.cnf, I changed :
max_allowed_packet = 1073741824
max_connections = 100000
and I added : net_buffer_length = 1048576
For info :
In my workbench, I can see the server variables :
EDIT2 : Now, when I select the variable in command line on the server, I have :
MariaDB [(none)]> SELECT ##global.max_allowed_packet;
+-----------------------------+
| ##global.max_allowed_packet |
+-----------------------------+
| 1073741824 |
+-----------------------------+
1 row in set (0.00 sec)
SOLUTION Because the error was not explicit.
Thanks to com.mysql.jdbc.PacketTooBigException
My cayenne configuration was :
<url value="jdbc:mysql://IPADDRESS:22/DBBASENAME" />
<login userName="ServerUserName" password="ServerPassword" />
But it should be :
<url value="jdbc:mysql://IPADDRESS/DBBASENAME" />
<login userName="MYSQLUserName" password="MYSQLPassword" />
Change it in my.cnf, then restart mysqld.
Better yet, put it in a file under /etc/mysql/mariadb.conf.d/, and specify the section:
[mysqld]
max_allowed_packet = 1073741824
What you did (SET) went away when you restarted. Even so, it only applied to connections that logged in after doing the SET.
I am trying to get a local LDAP proxy cache running. The idea is this:
Currently a computer (A) is sending all ldap requests to a remote ldap server (L)
Instead of that, there should be a proxy cache "server" running on A to act as an intermediate between A and L. The cache would store all queries and all their attributes (until it is filled up and then it starts "recycling").
OpenLDAP's Proxy Cache Engine looks pretty good, but there is not much information about how to set it up. There is an example config file, but I cannot get it to work.
When connected to the internet, running this command will successfully bind me.
ldapwhoami -vvv -h localhost -D "CN=Melka Martin,OU=something,OU=else,(...),DC=int,DC=somedomain,DC=com" -x -w <passwd>
However, each following request will still pool the remote LDAP server (as shown by sniffing the connection, and when the machine is disconnected from the internet, the local bind fails).
In the slapd output there is a lot of stuff, but the elligible:
56449abd QUERY NOT ANSWERABLE
56449abd QUERY CACHEABLE
This is the current config file, which should cache all the bind requests
database ldap
suffix "dc=int,dc=somedomain,dc=com"
rootdn "cn=admin,dc=int,dc=somedomain,dc=com"
rootpw <something>
uri ldap://dc-04.int.somedomain.com:389
overlay pcache
pcache hdb 100000 1 1000 100
pcacheAttrset 0 *
pcacheTemplate (sn=) 0 3600
pcacheBind (sn=) 0 3600 sub dc=int,dc=somedomain,dc=com
cachesize 200
directory /var/lib/ldap
index objectClass eq
index cn eq,sub
I have created the /var/lib/ldap directory, added a default DB_CONFIG file in there and then edited the slapd.conf file. If there are more things to do to set it up properly, could you instruct me?
I am a little confused about the rootdn/rootpw directives. They are used to write into the remote LDAP server, correct?
Edit: Below here is the original issue, which was resolved by using the full proper DN.
As this is supposed to only be a proxy cache, I shouldn't need to set up a local database. So the config file looks like this:
include /etc/openldap/schema/core.schema
include /etc/openldap/schema/cosine.schema
include /etc/openldap/schema/inetorgperson.schema
include /etc/openldap/schema/nis.schema
moduleload pcache.la
database ldap
suffix "dc=int,dc=somedomain,dc=com"
rootdn "dc=int,dc=somedomain,dc=com"
uri ldap://dc-04.int.somedomain.com:389
overlay pcache
pcache hdb 100000 1 1000 100
pcacheAttrset 0 *
pcacheTemplate (sn=) 0 3600
cachesize 20
directory /var/lib/ldap
index objectClass eq
index cn eq,sub
Now I would expect that any request to ldap://localhost would mirror to the remote LDAP, if not in the cache.
I use this command to test the auth on the remote server:
ldapwhoami -vvv -h dc-04.int.somedomain.com -p 389 -D melka#somedomain.com -x -w <passwd>
Which works well, I get the auth.
However, when I try to run the same command on localhost:
ldapwhoami -vvv -h localhost -p 389 -D melka#somedomain.com -x -w <passwd>
It fails, saying
ldap_initialize( ldap://localhost:389 )
ldap_bind: Invalid DN syntax (34)
additional info: invalid DN
Slapd is listening on localhost, netstat contains this line:
tcp 0 0 0.0.0.0:389 0.0.0.0:* LISTEN 10352/slapd
Is there something I am missing?
Thanks
melka#somedomain.com
That may be a DN in the target LDAP system, who knows, but it certainly isn't in OpenLDAP. You need to provide a proper Distinguished Name.
I am rebuilding an Icinga server that has been left behind by a previous employee. I have everything up and running, except for a bunch of MIB files for 3com switches that I cannot get to work.
The server is a CentOS 6 OpenVZ container.
In the original server there is a bunch of mib files in the default location at /usr/share/snmp/mibs/ and the 3com ones at /usr/share/snmp/mibs/3Com_4500/MIBs. The 3Com mibs work fine:
/usr/lib/nagios/plugins/check_snmp -H 10.10.111.11 -P 2c -C public -o hwDevMFanStatus.65536 -s "active(1)" -m A3COM-HUAWEI-LswDEVM-MIBSNMP OK - active(1) |
In the new server, the MIBs in the 3com folder do not get acknowledged and I get errors like the following:
/usr/lib/nagios/plugins/check_snmp -H 10.10.111.11 -P2c -C someuser -o hwDevMFanStatus.65536 -s "active(1)" -m A3COM-HUAWEI-LswDEVM-MIB
External command error: No log handling enabled - turning on stderr logging
Cannot find module (A3COM-HUAWEI-LswDEVM-MIB): At line 0 in (none)
hwDevMFanStatus.65536: Unknown Object Identifier (Sub-id not found: (top) -> hwDevMFanStatus)
/etc/snmp/snmpd.conf is identical for both servers and so is /etc/sysconfig/snmp.
set does not show any ENV variable related to snmp or mib.
Thanks
You are confusing snmpd.conf and snmp.conf the former being the configuration file for the SNMP daemon whereas Net-SNMP applications use snmp.conf.
The mibs/mibdirs directives you are interested in would be specified in snmp.conf (see also man snmp.conf.
I have to create a script to manage maintenance pages server for my hosting company.
I will need to do a CLI interface that would act like this (example scenario) :
(here, let's suppose that mcli is the name of the script, 1.1.1.1 the original server address (that host the website, www.exemple.com)
Here I just create the loopback interface on the maintenance server with the original ip address and create the nginx site-specific config file in sites-enabled
$ mcli register www.exemple.com 1.1.1.1
[DEBUG] Adding IP 1.1.1.1 to new loopback interface lo:001001001001
[WARNING] No root directory specified, setting default maintenance page.
[DEBUG] Registering www.exemple.com maintenance page and reloading Nginx: OK
Then when I want to enable the maintenance page and completely shutdown the website:
$ mcli maintenance www.exemple.com
[DEBUG] Connecting to router with SSH: OK
[DEBUG] Setting new route to 1.1.1.1 to maintenance server: OK
[DEBUG] Writing configuration: Ok
Then removing the maintenance page:
$ mcli nomaintenance www.exemple.com
[DEBUG] Connecting to router with SSH: OK
[DEBUG] Removing route to 1.1.1.1: Ok
[DEBUG] Writing configuration: Ok
And I would need a function to see the actual states of the websites
$ mcli list
+------------------+-----------------+------------------+
| Site Name | Server I.P | Maintenance mode |
+------------------+-----------------+------------------+
| www.example.com | 1.1.1.1 | Enabled |
| www.example.org | 1.1.1.2 | Disabled |
+------------------+-----------------+------------------+
$ mcli show www.example.org
Site Name: www.example.org
Server I.P: 1.1.1.1
Maintenance Mode: Enabled
Root Directory : /var/www/maintenance/default/
But I never did this kind of scripting with Ruby. What gems do you recommend for this kind of things ? For command line parsing ? Column/Colorized output ? SSH connection (needed to connect to cisco routers)
Do you recommend me to use a local database (sqlite) to store meta datas (Stages changes, actual states) or do you recommend me to compute on the fly by analyzing nginx/interfaces configuration files and using syslog for monitoring changes done with this script ?
This script will be used at first time for a massive datacenter physical migration, and next for standard usages for scheduled downtimes.
Thank you
First of all, I'd recommend you get a copy of Build awesome command-line applications in Ruby.
That said, you might want to check
GLI command line parsing like git
OptionParser command line parsing
Personally, I'd go for the SQLite approach for storing data, but I'm biased (having a strong SQL background).
Thor is a good gem for handling CLI options. It allows this type of organization in your script:
class Maintenance < Thor
desc "maintenance", "put up maintenance page"
method_option :switch, :aliases => '-s', :type => 'string'
#The method name is the name of the task that would be run => mcli maintenance
def maintenance
#do stuff
end
no_tasks do
#methods that you don't want cli tasks for go here
end
end
Maintenance.start
I don't really have any good suggestions for column/colorized output though.
I definitely recommend using some kind of a database to store states though. Maybe not sqlite, I would probably opt for maybe a redis database that stores key/value pairs with the information you are looking for.
We have similar task. I use next architecture
Small application (C) what generate config file
Add nginx init.d script new switch update_clusters. This script will restart nginx only if config file is changed
update_clusters() {
${CONF_GEN} --outfile=/tmp/nginx_clusters.conf
RETVAL=$?
if [[ "$RETVAL" != "0" ]]; then
return 5
fi
if ! diff ${CLUSTER_CONF_FILE} /tmp/nginx_clusters.conf > /dev/null; then
echo "Cluster configuration changed. Reload service"
mv -f /tmp/nginx_clusters.conf ${CLUSTER_CONF_FILE}
reload
fi
}
Set of bash scripts to add records to database.
Web console to add/modify/delete records in database (extjs+nginx module)