[comment]: # translation:outdated [comment]: # ({7af1bbaa-7af1bbaa}) # 1 Database creation [comment]: # ({/7af1bbaa-7af1bbaa}) [comment]: # ({c42816d5-c42816d5}) #### Overview A Zabbix database must be created during the installation of Zabbix server or proxy. This section provides instructions for creating a Zabbix database. A separate set of instructions is available for each supported database. ::: notetip `schema.sql`, `images.sql` and `data.sql` files are located in the *database* subdirectory of Zabbix sources. If Zabbix was installed from distribution packages, refer to the distribution documentation. ::: ::: noteimportant For a Zabbix proxy database, **only** `schema.sql` should be imported (no images.sql nor data.sql) ::: UTF-8 is the only encoding supported by Zabbix. It is known to work without any security flaws. Users should be aware that there are known security issues if using some of the other encodings. [comment]: # ({/c42816d5-c42816d5}) [comment]: # ({92d30db4-92d30db4}) #### MySQL Character set utf8 and utf8\_bin collation is required for Zabbix server to work properly with MySQL database. shell> mysql -uroot -p mysql> create database zabbix character set utf8 collate utf8_bin; mysql> create user 'zabbix'@'localhost' identified by ''; mysql> grant all privileges on zabbix.* to 'zabbix'@'localhost'; mysql> quit; ::: noteimportant Zabbix server prior to 4.4 cannot work correctly with newer MariaDB versions out of the box. See [Known issues](/manual/installation/known_issues#MariaDB_row_size_error) for required database modifications. ::: ::: notewarning If you are installing from Zabbix packages, stop here and continue with instructions for [Debian/Ubuntu](/manual/installation/install_from_packages/debian_ubuntu#importing_data) or [RHEL/CentOS](/manual/installation/install_from_packages/rhel_centos#importing_data) to import the data into the database. ::: If you are installing Zabbix from sources, proceed to import the data into the database: shell> cd database/mysql shell> mysql -uzabbix -p zabbix < schema.sql # stop here if you are creating database for Zabbix proxy shell> mysql -uzabbix -p zabbix < images.sql shell> mysql -uzabbix -p zabbix < data.sql [comment]: # ({/92d30db4-92d30db4}) [comment]: # ({7e024f3e-7e024f3e}) #### PostgreSQL You need to have database user with permissions to create database objects. The following shell command will create user `zabbix`. Specify password when prompted and repeat password (note, you may first be asked for `sudo` password): shell> sudo -u postgres createuser --pwprompt zabbix Now we will set up the database `zabbix` (last parameter) with the previously created user as the owner (`-O zabbix`). shell> sudo -u postgres createdb -O zabbix -E Unicode -T template0 zabbix ::: notewarning If you are installing from Zabbix packages, stop here and continue with instructions for [Debian/Ubuntu](/manual/installation/install_from_packages/debian_ubuntu#importing_data) or [RHEL/CentOS](/manual/installation/install_from_packages/rhel_centos#importing_data) to import the initial schema and data into the database. ::: If you are installing Zabbix from sources, proceed to import the initial schema and data (assuming you are in the root directory of Zabbix sources): shell> cd database/postgresql shell> cat schema.sql | sudo -u zabbix psql zabbix # stop here if you are creating database for Zabbix proxy shell> cat images.sql | sudo -u zabbix psql zabbix shell> cat data.sql | sudo -u zabbix psql zabbix ::: noteimportant The above commands are provided as an example that will work in most of GNU/Linux installations. You can use different commands, e. g. "psql -U " depending on how your system/database are configured. If you have troubles setting up the database please consult your Database administrator. ::: [comment]: # ({/7e024f3e-7e024f3e}) [comment]: # ({923cc734-923cc734}) #### Oracle We assume that a *zabbix* database user with *password* password exists and has permissions to create database objects in ORCL service located on the *host* Oracle database server with a *user* shell user having write access to /tmp directory. Zabbix requires a Unicode database character set and a `UTF8` national character set. Check current settings: sqlplus> select parameter,value from v$nls_parameters where parameter='NLS_CHARACTERSET' or parameter='NLS_NCHAR_CHARACTERSET'; If you are creating a database for Zabbix server you need to have images from Zabbix sources on the host where Oracle is running. Copy them to a directory */tmp/zabbix\_images* on the Oracle host: shell> cd /path/to/zabbix-sources shell> ssh user@oracle_host "mkdir /tmp/zabbix_images" shell> scp -r misc/images/png_modern user@oracle_host:/tmp/zabbix_images/ Now prepare the database: shell> cd /path/to/zabbix-sources/database/oracle shell> sqlplus zabbix/password@oracle_host/ORCL sqlplus> @schema.sql # stop here if you are creating database for Zabbix proxy sqlplus> @images.sql sqlplus> @data.sql ::: notetip Please set the initialization parameter CURSOR\_SHARING=FORCE for best performance. ::: Now the temporary directory can be removed: shell> ssh user@oracle_host "rm -rf /tmp/zabbix_images" [comment]: # ({/923cc734-923cc734}) [comment]: # ({f00d4e06-f00d4e06}) #### IBM DB2 shell> db2 "create database zabbix using codeset utf-8 territory us pagesize 32768" shell> cd database/ibm_db2 shell> db2batch -d zabbix -f schema.sql # stop here if you are creating database for Zabbix proxy shell> db2batch -d zabbix -f images.sql shell> db2batch -d zabbix -f data.sql ::: noteclassic It is important to set UTF-8 locale for Zabbix server, Zabbix proxy and the web server running Zabbix frontend. Otherwise text information from Zabbix will be interpreted by IBM DB2 server as non-UTF-8 and will be additionally converted on the way from Zabbix to the database and back. The database will store corrupted non-ASCII characters. ::: Zabbix frontend uses `OFFSET` and `LIMIT` clauses in SQL queries. For this to work, IBM DB2 server must have DB2\_COMPATIBILITY\_VECTOR variable be set to 3. Run the following command before starting the database server: shell> db2set DB2_COMPATIBILITY_VECTOR=3 [comment]: # ({/f00d4e06-f00d4e06}) [comment]: # ({02d49e4f-02d49e4f}) #### SQLite Using SQLite is supported for **Zabbix proxy** only! ::: noteclassic If using SQLite with Zabbix proxy, database will be automatically created if it does not exist. ::: shell> cd database/sqlite3 shell> sqlite3 /var/lib/sqlite/zabbix.db < schema.sql Return to the [installation section](/manual/installation/install). [comment]: # ({/02d49e4f-02d49e4f})