I have a MariaDB (10.4.14) Master-Slave configuration and I want to use Percona pt-table-checksum. I have installed Percona Toolkit in the Master host, which includes pt-table-checksum 3.2.1.
I have created a user to run pt-table-checksum and granted his privileges:
GRANT REPLICATION SLAVE,PROCESS,SUPER, SELECT ON *.* TO `checksum_user`#'%' IDENTIFIED BY 'checksum_password';
GRANT ALL PRIVILEGES ON percona.* TO `checksum_user`#'%';
However, when I try to run the tool, I always get the following error:
pt-table-checksum --replicate=percona.checksums --ignore-databases mysql --no-check-binlog-format h=localhost, u=checksum_user, p=checksum_password
Usage: pt-table-checksum [OPTIONS] [DSN]
Errors in command-line arguments:
* More than one host specified; only one allowed
Instead of using the DSN, I have also tried the options --host,--user and --password, but the results are the same.
What am I doing wrong?
Related
Open MPI: 4.0.1a
HostFile:
34bb0519eAAA
a2935f150BBB
I am in machine 34bb0519eAAA. And I could use ssh a2935f150BBB to connect a2935f150BBB successfully. And also ssh 34bb0519eAAA In machine a2935f150BBB to connect 34bb0519eAAA successfully .
But when I mpiexec command . I get error message
****Warning: Permanently added '[XX.XX.XX.XX]:XX' (a2935f150BBB'IP address) to the list of known hosts.**
----------------------**--------------------------------------
A process or daemon was unable to complete a TCP connection
to another process:
Local host: a2935f150BBB
Remote host: 34bb0519eAAA
This is usually caused by a firewall on the remote host. Please
check that any firewall (e.g., iptables) has been disabled and
ORTE was unable to reliably start one or more daemons.
This usually is caused by:
* not finding the required libraries and/or binaries on
one or more nodes. Please check your PATH and LD_LIBRARY_PATH
settings, or configure OMPI with --enable-orterun-prefix-by-default
* lack of authority to execute on one or more specified nodes.
Please verify your allocation and authorities.
* the inability to write startup files into /tmp (--tmpdir/orte_tmpdir_base).
Please check with your sys admin to determine the correct location to use.
* compilation of the orted with dynamic libraries when static are required
(e.g., on Cray). Please check your configure cmd line and consider using
one of the contrib/platform definitions for your system type.
* an inability to create a connection back to mpirun due to a
lack of common network interfaces and/or no route found between
them. Please check network connectivity (including firewalls
and network routing requirements).
I am very confused that.Because I run ssh to each other successfully . How could fail that.
Here is ssh connection
ssh a2935f150BBB
Warning: Permanently added '[XX.XX.XX.XX]:XX to the list of known hosts.
Welcome to Ubuntu 18.04.1 LTS (XXXXXXXXXXXXXXXXXX)
Documentation: https://help.ubuntu.com
Management: https://landscape.canonical.com
Support: https://ubuntu.com/advantage
This system has been minimized by removing packages and content that are
not required on a system that users do not log into.
To restore this content, you can run the 'unminimize' command.
Last login:XXXXXXXXXXXXX from XXXXXXXXXX
I'm using a fresh installation of Debian Stretch, and installed PHP7 and MariaDB as recommended:
sudo apt-get install nginx mariadb-server mariadb-client php-mysqli php7.0-fpm php7.0-curl
Then using sudo mysql_secure_installation I followed the prompts to remove test users etc.
MariaDB seems to use unix_socket authentication (which is a new concept to me). I like how it restricts root access to sudoers and allows me to grant DB permissions to specific OS users.
However I'd prefer to assign individual user/passwords for each web application running on the server. They all run as www-data user on the system and I see no reason to let them share databases.
So I created a user for my first PHP script and granted access to a new database:
CREATE USER 'telemetry'#'localhost' IDENTIFIED BY 'yeah_toast';
UPDATE mysql.user SET plugin='mysql_native_password' WHERE user='telemetry';
GRANT ALL PRIVILEGES ON telemetry TO 'telemetry'#'localhost';
FLUSH PRIVILEGES;
But it refuses to let me connect from the application:
[error] 19336#19336: *20 FastCGI sent in stderr: "PHP message: PHP Warning: mysqli::real_connect(): (HY000/1045): Access denied for user 'telemetry'#'localhost' (using password: YES) in /path/to/database.inc.php on line 30
The credentials I'm using from the application are as follows:
Host: localhost (also tried 127.0.0.1)
Username: telemetry
Password: yeah_toast
Database: telemetry
I tried deleting and re-creating the username in case it was a password problem, and creating a user #'localhost' and #'%' but none seem to work. In fact when I log in using the same credentials from the command line without sudo it works great (mysql -utelemetry -p).
Am I missing a MariaDB configuration step here?
While installing oracle 11g XE on docker i am getting the error.
Following are the output:-
/etc/init.d/oracle-xe configure
Oracle Database 11g Express Edition Configuration
This will configure on-boot properties of Oracle Database 11g Express
Edition. The following questions will determine whether the database should
be starting upon system boot, the ports it will use, and the passwords that
will be used for database accounts. Press to accept the defaults.
Ctrl-C will abort.
Specify the HTTP port that will be used for Oracle Application Express [8080]:8080
Specify a port that will be used for the database listener [1521]:1521
Specify a password to be used for database accounts. Note that the same
password will be used for SYS and SYSTEM. Oracle recommends the use of
different passwords for each database account. This can be done after
initial configuration:
Confirm the password:
Do you want Oracle Database 11g Express Edition to be started on boot (y/n) [y]:y
Starting Oracle Net Listener...Done
Configuring database...
Database Configuration failed. Look into /u01/app/oracle/product/11.2.0/xe/config/log for details
[root#b7c63c4e1da8 Disk1]# cd /u01/app/oracle/product/11.2.0/xe/config/log
[root#b7c63c4e1da8 log]# ls
CloneRmanRestore.log cloneDBCreation.log postDBCreation.log postScripts.log
[root#b7c63c4e1da8 log]# cat CloneRmanRestore.log
ORA-00845: MEMORY_TARGET not supported on this system
select TO_CHAR(systimestamp,'YYYYMMDD HH:MI:SS') from dual
*
ERROR at line 1:
ORA-01034: ORACLE not available
Process ID: 0
Session ID: 0 Serial number: 0
declare
*
ERROR at line 1:
ORA-01034: ORACLE not available
Process ID: 0
Session ID: 0 Serial number: 0
select TO_CHAR(systimestamp,'YYYYMMDD HH:MI:SS') from dual
*
ERROR at line 1:
ORA-01034: ORACLE not available
Process ID: 0
Session ID: 0 Serial number: 0
One of the possible solution that I got was to mount the temp file to provide extra space to it which only contains 6GB approx in the docker. But i am unable to mount the memory in docker.
Got the solution for the same :-
we have to modify the files init.ora and initXETemp.ora at the path /u01/app/oracle/product/11.2.0/xe/config/scripts
with the values :-
###########################################
# Miscellaneous
###########################################
compatible=11.2.0.0.0
diagnostic_dest=/u01/app/oracle
#memory_target=1073741824
pga_aggregate_target=200540160
sga_target=601620480
You may encounter
ORA-00845: MEMORY_TARGET not supported on this system
when starting Oracle DB in an unprivileged container. Try running the container with the --privileged flag, e.g.
docker run --name oracle12 --hostname oracledb --privileged local/oracle12:12.1.0.2
I try to install https://github.com/roots/bedrock-ansible to get a bedrock deployment (http://roots.io/wordpress-stack/) running.
When I run "vagrant up", after some time I get the error:
TASK: [capistrano-setup | Setup deploy group] *********************************
skipping: [default]
TASK: [capistrano-setup | Setup deploy user] **********************************
skipping: [default]
TASK: [capistrano-setup | Adding public key to server] ************************
fatal: [default] => could not locate file in lookup: ~/.ssh/id_rsa.pub
FATAL: all hosts have already failed -- aborting
PLAY RECAP ********************************************************************
to retry, use: --limit #/Users/johannes/site.retry
default : ok=46 changed=16 unreachable=1 failed=0
Ansible failed to complete successfully. Any error output should be
visible above. Please fix these errors and try again.
I do not have a clou how i can fix this. Do you have an idea?
It seems the role is trying to find your local public key. It should be in the location in the error message '~/.ssh/id_rsa.pub', but it's not. So either you don't have one, or you keep it in another location.
If you're not familiar with generating SSH keys you probably don't have one. I personally like the GitHub help page for this: https://help.github.com/articles/generating-ssh-keys/
(you only have to perform steps 1 and 2).
If you do have SSH keys, but in a different location, the capistrano-install role in bedrock uses some variables:
deploy_user: deploy
deploy_keys:
- "~/.ssh/id_rsa.pub"
So you can set (multiple) public key files in the deploy_keys list and they will be added to the deploy_user's authorized keys.
All this is needed because Capistrano will use the deploy user to connect to the remote server later. http://blakesmith.me/2010/02/08/understanding-public-key-private-key-concepts.html
The only relevant command that I found is:
NAME
list-jdbc-connection-pools - lists all JDBC connection pools
EXAMPLES
This example lists the existing JDBC connection pools.
asadmin> list-jdbc-connection-pools
sample_derby_pool
__TimerPool
Command list-jdbc-connection-pools executed successfully.
What I want is to display the information about particular connection pool. Such as:
asadmin desc-jdbc-connection-pool sample_derby_pool
name: sample_derby_pool
databaseName: oracle
portNumber: 1521
serverName: test
user: testUser
...
Try running:
asadmin get * | more
The above command will display all GlassFish attributes. Pipe it to grep to get just the pool properties you are interested in:
asadmin get * | grep TimerPool
Hope this helps.