Merging 2 different Redmine Installations
I have redmine installed in 2 systems A and B.
Version : 0.8.0
I want both the redmine version to be merged to one now. Does redmine has any such feature where i can merge the database from other redmine installation or location.
Redmine A Redmine B
IP 192.168.1.1 IP 192.168.1.100
Want both to merge
So that the results would be
Redmine ( A + B ) = Redmine (Final)
Please provide me the soln.
#2 Updated by Kiall Mac Innes about 11 years ago
I recently merged a trac and redmine database in a way that may work for you..
Basically - i used the trac importer to create a redmine DB from the trac one. then the existing redmine DB was merged into this new one..
See the attached SQL queries as a base for what your going to need to to on the "to be deleted db" - after all these queries, you can export the data from the old db, and just insert them into the new one..
Aka - Pick one of your existing installs to the the final one and merge the other DB into it ...
The queries i used DO NOT COVER all circumstances - we has been using a limited set of trac features and a limited set of redmine features... You'll need to add more queries...!
#3 Updated by Kiall Mac Innes about 11 years ago
Note... all those numbers in the queries represent the MAX from the corresponding table from the DB u pick as the "final one" ...
Eg all the 380's in the "//User IDs" section are because on the "final db" "SELECT MAX AS max FROM users" returns 380...
Good luck - its not easy.
#4 Updated by Zarooba Rozruba about 11 years ago
A warnings : if you have anywhere references to ticket numbers, in text as opposed to db schema based link, then it will start pointing to a wrong location.
redmine a : commit comment : closes # 123
redmine b : commit comment : closes # 123
When merged, commit comments will stay intact, while one of them will have their tickets renumbered. This will cause some confusion.
If I can bring up my own related need : see ticket #3087
#5 Updated by Chris Born about 11 years ago
This very closely relates to a forum post I made just yesterday about moving a single project from one Redmine install to another. I began looking at the DB to see what it would take, then just ran across this. I was thinking of a possible solution for this being a project export/import feature. This would be really helpful, either project based merger or full Redmine install.
#6 Updated by Eric Davis over 10 years ago
- Priority changed from Urgent to Normal
I just recently completed a plugin that will let you merge two Redmine database together. It worked for my customer, but I need to add some documentation before I can create a release of it. If you're interested, it's located at http://github.com/edavis10/redmine_merge_redmine
#7 Updated by Christian Rodriguez over 6 years ago
I updated Eric Davis plugin to be compatible with current redmine version. Source code (until pull request is accepted) is located at https://github.com/chrodriguez/redmine_merge_redmine
#8 Updated by Baris Demiray over 5 years ago
First of all, thanks to those who contributed the scripts!
I was just using Christian's version and I had problems with clashing project indexes, which was expected, so I updated project_id values in all the tables so that they would not clash, but then now I'm having the error below,
PG::UniqueViolation: ERROR: duplicate key value violates unique constraint "projects_trackers_unique" DETAIL: Key (project_id, tracker_id)=(4, 1) already exists. : INSERT INTO "projects_trackers" ("project_id", "tracker_id") VALUES (4, 1) Tasks: TOP => redmine:merge_redmine (See full trace by running task with --trace)
Apparently, tracker_id field is now unique in recent versions of Redmine, which is not the case at all in older database (as there are tracker_ids 1 to 4 for every single project_id). Am I missing something?
Source Redmine: v1.2.0 (SQLite) # I converted SQLite to PostgreSQL as described in 2.2 of http://vault-tec.info/post/68670739052/installing-migrating-upgrading-redmine-with-ldap-on.
Destination Redmine: v2.5.2 (PostgreSQL)
Thanks in advance,
#9 Updated by Arthur Andersen about 5 years ago
For anyone who's trying to accomplish the same thing.
I updated the merge plugin to work with Redmine 3.0.
With this I was able to merge 2.3 and 2.5 into an up-to-date 3.0 database.
Simply migrate each redmine database to the latest version and run the plugins merge task.
Thank you for all the work that you put into this!