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features.md

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dbdeployer features

This table compares features from MySQL-Sandbox and dbdeployer.

Feature MySQL-Sandbox dbdeployer dbdeployer planned
Single sandbox deployment yes yes
unpack command sort of 1 yes
multiple sandboxes yes yes
master-slave replication yes yes
"force" flag yes yes
pre-post grants SQL action yes yes
initialization options yes yes
my.cnf options yes yes
custom my.cnf yes yes
friendly UUID generation yes yes
global commands yes yes
test replication flow yes yes
delete command yes 2 yes
show data dictionary tables yes yes
lock/unlock sandboxes yes yes
finding free ports yes yes
semi-sync replication yes yes
group replication SP no yes
group replication MP no yes
prevent port collision no yes 3
visible initialization no yes 4
visible script templates no yes 5
replaceable templates no yes 6
configurable defaults no yes 7
list of source binaries no yes 8
list of installed sandboxes no yes 9
test script per sandbox no yes 10
integrated usage help no yes 11
custom abbreviations no yes 12
version flag no yes 13
sandboxes global catalog no yes
concurrent deployment no yes
command line completion no yes
MySQL upgrade no yes
MySQLX support no yes
fan-in no yes 14
all-masters no yes 15
Percona Xtradb cluster no yes
MySQL Cluster no yes
Inter-sandbox replication limited 16 yes
pre-post grants shell action yes no maybe
getting remote tarballs yes yes
load plugins yes yes 17
circular replication yes sort of 18
master-master (circular) yes no no
Windows support no no 19

Footnotes

  1. It's achieved using --export_binaries and then abandoning the operation.

  2. Uses the sbtool command

  3. dbdeployer sandboxes store their ports in a description JSON file, which allows the tool to get a list of used ports and act before a conflict happens.

  4. The initialization happens with a script that is generated and stored in the sandbox itself. Users can inspect the init_db script and see what was executed.

  5. All sandbox scripts are generated using templates, which can be examined and eventually changed and re-imported.

  6. See also note 5. Using the flag --use-template you can replace an existing template on-the-fly. Group of templates can be exported and imported after editing.

  7. Defaults can be exported to file, and eventually re-imported after editing.

  8. This is little more than using an O.S. file listing, with the added awareness of the source directory.

  9. Using the description files, this command lists the sandboxes with their topology and used ports.

  10. It's a basic test that checks whether the sandbox is running and is using the expected port.

  11. The "usage" command will show basic commands for single and multiple sandboxes.

  12. the abbreviations file allows user to define custom shortcuts for frequently used commands.

  13. Strangely enough, this simple feature was never implemented for MySQL-Sandbox, while it was one of the first additions to dbdeployer.

  14. Uses the multi source technology introduced in MySQL 5.7.

  15. Same as n. 14.

  16. Single sandboxes could replicate from another using option --slaveof

  17. Using pre-grants and post-grants options, all plugins can be loaded.

  18. Circular replication should not be used anymore. There are enough good alternatives (multi-source, group replication) to avoid this old technology. However, using the script replicate_from, it is possible to run circular replication. There is an example in the cookbook.

  19. I don't do Windows. But you can fork the project if you do.