What is SymmetricDS
SymmetricDS is open source software for multi-master database replication, filtered synchronization, or transformation across the network in a heterogeneous environment. It supports multiple subscribers with one direction or bi-directional asynchronous data replication. It uses web and database technologies to replicate tables between relational databases, in near real time if desired. The software was designed to scale for a large number of databases, work across low-bandwidth connections, and withstand periods of network outage.
SymmetricDS 3.3.1 Released
- Details
- Category: News
- Published on Thursday, 14 February 2013 14:17
- Written by Eric Long
Thanks to everyone for their help with feedback and testing. We've made some updates and released SymmetricDS 3.3.1. This release includes four bugfixes, including fixes for the MariaDB dialect, concurrent batch extraction, and a fix to allow a batch to be re-extracted by the user. Details are in the Changelog.
Add a commentSymmetricDS 3.3.0 Released
- Details
- Category: News
- Published on Saturday, 09 February 2013 00:41
- Written by Eric Long
SymmetricDS version 3.3.0 is released. This is a feature release that includes new configuration tables. When you upgrade to this version, it will automatically create the new tables for you. The sym_table_reload_request table provides an easy way to queue requests for reloading the data of one of your tables. For example, a remote client maybe be undergoing a software upgrade and request from the server that a table reload is sent to it.
Grouplets are a new way to create arbitrary groups of nodes that participate in a different synchronization configuration. This is useful for piloting a configuration change with a small group of nodes before rolling it out to all nodes.
The refresh cache job is now enabled by default. It checks to see if the configuration has changed and refreshes the appropriate cache. This was added so changes can take effect quickly across a cluster of root servers.
Conflict management was improved by recording the conflict_id and the current data in sym_incoming_batch. Now you can easily see exactly which conflict detector put the batch in error. If the streaming LOBs feature is enabled, the data loader now knows not to try conflict detection with a LOB, since there is no old and new data to compare.
This is a minor release that includes 8 new features, 8 improvements, and fixes 8 bugs. Yes, I counted twice, it's 8 all around. Improvements include better logging to aid debugging, defaulting to an error for missing tables, and more documentation. Bugs include fixing the disabling of stream to file and recording a batch error message even if it occurs before or after batch processing. Get more details from the changelog.
Add a commentHow many databases are you syncing?
- Details
- Category: Polls
- Published on Wednesday, 30 January 2013 00:00
- Written by Eric Long
SymmetricDS 3.2.3 Released
- Details
- Category: News
- Published on Thursday, 24 January 2013 10:00
- Written by Eric Long
SymmetricDS version 3.2.3 is released. This is a patch release that fixes 3 bugs and includes 4 improvements. Bugs include handling large objects when tables need quoted and targeting different catalogs. Improvements include upgrading the PostgreSQL driver, options for tuning the routing query, and an option for throttling the dbimport. Get more details from the changelog.
Add a commentSymmetricDS 3.2.2 Released
- Details
- Category: News
- Published on Sunday, 13 January 2013 00:00
- Written by Eric Long
SymmetricDS version 3.2.2 is released. This is a patch release that fixes 5 bugs, including fixes for PostgreSQL, SQLite, and Informix dialects, and a fix for wildcards with tables. Get more details from the changelog.
Add a commentLatest Release
Forum Feed
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How to stop data replication on client
1) You can stop the triggers by toggling the 'sync_on_update', 'sync_on_insert', and 'sync_on_delete' columns in the sym_trigger table for that trigger. Changing this will remove the trigger and prevent...
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Reload Table in 3.2.0
dang, I posted in the Mobile Forum... again. Sorry about that. There doesn't appear to be a way to move this to one of the other forums.
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Transform of type variable on extract (or load) not invoked.
The problem was the table name specified in the sym_transform_table table. This is case sensitive, and since PostgreSQL returns table names in lower case, the table needs to be...
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node_group_link changes force re-registration
This issue does not seem to be present with the production 3.2.0 release. :-) I do get an error on one of the (replica) nodes whenever I toggle node_group_link. ...
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JumpMind and SymmetricDS at Percona Live Santa Clara
We are about a week out at this point from the Percona Live MySQL conference, held in Santa Clara, California, and JumpMind is getting excited about it. As one of JumpMind's founders, I will be presenting a session on SymmetricDS at the conference, and JumpMind will also be revealing its...
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8:36pm · 8 May 13
symmetricds: Check out a quick video about SymmetricDS Pro to see the GUI in action. http://t.co/9RIzIBF6lu
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8:48am · 29 Apr 13
symmetricds: SymmetricDS 3.4.2 maintenance update released. Fixes nocount bug on SQL-Server and improves error monitoring.
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8:43pm · 21 Apr 13
symmetricds: New minor release, SymmetricDS 3.4.0, with more support for MariaDB, sync status API, and "remove" transform. http://t.co/ctiBxkeciA
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9:09pm · 15 Apr 13
symmetricds: Performance tweaks just released in SymmetricDS 3.3.7 to speed up big batches and initial load.
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7:57pm · 10 Apr 13
symmetricds: Mark Hanes is speaking at #perconalive April 22-25 about multi-tier replication and SymmetricDS. Also visit Mark and Brad at booth 416.