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If the PostgreSQL version and architecture is the same on the target so they're binary compatible: Set up streaming replication with WAL archive fallback, so the new host replicates from the old one. Enable hot_standby mode so you can connect to the new host read-only. Test. Then when you're ready to cut over, stop the old server and pg_ctl promote the new ...


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This version of Oracle XE is based on 11g2 edition, which is not compatible with CentOS 7. In fact, it isn't even 100% compatible with CentOS 6, however it will run there without problems, after you install a number of RPM packages not installed/required by Oracle installer (especially libaio both 32/64-bit). These are formal OS requirements for XE 11g2: ...


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If the problem is only cannot start sqlplus, there are two alternatives: 1) If one has the GUI (GNOME or KDE), do the search: "sql command line", and It will appear Run SQL Command Line. 2) Check again the environment variables. Edit the files /root/.bash_profile and /root/.bashrc (for example: # nano /root/.bash_profile) and put the line (at the end): ...


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Reason: Is it the same version of Mongo on both servers? Record Padding : http://docs.mongodb.org/v2.4/core/record-padding/ No Padding Allocation Strategy Changed in version 3.0.0. For collections whose workloads do not change the document sizes, such as workloads that consist of insert-only operations or update operations that do not increase document ...


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You should be able to just run mysql_install_db from the command line mysql_install_db initializes the MySQL data directory and creates the system tables that it contains, if they do not exist. It also initializes the system tablespace and related data structures needed to manage InnoDB tables. As of MySQL 5.6.8, mysql_install_db is a Perl script and can ...



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