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    <title>Support Forums: Message List - SymmetricDS 1.0.0 Released - synchronizes databases</title>
    <link>http://www.theserverside.com</link>
    <description>Most recent forum messages</description>
    <language>en</language>
    
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    <pubDate>Tue, 21 May 2013 10:04:46 -0400</pubDate>


    <item>

        <title>Re: performance question</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[<blockquote>Another possibility is an option to perform just replication for those looking for higher performance but limited features.  This is definitely something I want to think about more for a future release.</blockquote>...]]></description>
        

        <pubDate>Wed, 14 Nov 2007 04:45:28 -0500</pubDate>

        

        <jf:creationDate>Wed, 14 Nov 2007 04:45:28 -0500</jf:creationDate>
        <jf:modificationDate>Wed, 14 Nov 2007 04:45:28 -0500</jf:modificationDate>
        <jf:date>Nov 14, 2007</jf:date>
        <jf:author>John Brand</jf:author>
        <jf:replyCount>0</jf:replyCount>
    </item>


    <item>

        <title>Re: performance question</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[In your example, one insert would cause the trigger to insert 1 Data and 10 DataEvents.  The DataEvents are small and relate a Data to a Node so it can be synchronized and tracked through the system.  The configuration allows the user to specify an...]]></description>
        

        <pubDate>Tue, 13 Nov 2007 21:16:07 -0500</pubDate>

        

        <jf:creationDate>Tue, 13 Nov 2007 21:16:07 -0500</jf:creationDate>
        <jf:modificationDate>Tue, 13 Nov 2007 21:16:07 -0500</jf:modificationDate>
        <jf:date>Nov 13, 2007</jf:date>
        <jf:author>Eric Long</jf:author>
        <jf:replyCount>1</jf:replyCount>
    </item>


    <item>

        <title>Re: performance question</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[<blockquote>Yes, there will be some overhead.  As you probably noticed,  the row data is only inserted once.  The data_event table is as sparse as we could make it:  data_id, event_id, and batch_id.  We had to make some sacrifices in order to guarantee...]]></description>
        

        <pubDate>Tue, 13 Nov 2007 14:57:56 -0500</pubDate>

        

        <jf:creationDate>Tue, 13 Nov 2007 14:57:56 -0500</jf:creationDate>
        <jf:modificationDate>Tue, 13 Nov 2007 14:57:56 -0500</jf:modificationDate>
        <jf:date>Nov 13, 2007</jf:date>
        <jf:author>John Brand</jf:author>
        <jf:replyCount>2</jf:replyCount>
    </item>


    <item>

        <title>Re: performance question</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[Yes, there will be some overhead.  As you probably noticed,  the row data is only inserted once.  The data_event table is as sparse as we could make it:  data_id, event_id, and batch_id.  We had to make some sacrifices in order to guarantee delivery,...]]></description>
        

        <pubDate>Tue, 13 Nov 2007 13:09:11 -0500</pubDate>

        

        <jf:creationDate>Tue, 13 Nov 2007 13:09:11 -0500</jf:creationDate>
        <jf:modificationDate>Tue, 13 Nov 2007 13:09:11 -0500</jf:modificationDate>
        <jf:date>Nov 13, 2007</jf:date>
        <jf:author>chenson42</jf:author>
        <jf:replyCount>3</jf:replyCount>
    </item>


    <item>

        <title>Re: Some Questions</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[Yes, we recently decided to add PostgreSQL because of the interest.  I just added it to the roadmap on the site.  Thanks for pointing that out....]]></description>
        

        <pubDate>Tue, 13 Nov 2007 13:05:03 -0500</pubDate>

        

        <jf:creationDate>Tue, 13 Nov 2007 13:05:03 -0500</jf:creationDate>
        <jf:modificationDate>Tue, 13 Nov 2007 13:05:03 -0500</jf:modificationDate>
        <jf:date>Nov 13, 2007</jf:date>
        <jf:author>Eric Long</jf:author>
        <jf:replyCount>0</jf:replyCount>
    </item>


    <item>

        <title>performance question</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[Hi, after reading the documentation of SymmetricDS a performance question came to my mind. I'm wondering how do you know which data have already been replicated to a particular node and which haven't. I got the impression that for every changed record in...]]></description>
        

        <pubDate>Tue, 13 Nov 2007 11:39:09 -0500</pubDate>

        

        <jf:creationDate>Tue, 13 Nov 2007 11:39:09 -0500</jf:creationDate>
        <jf:modificationDate>Tue, 13 Nov 2007 11:39:09 -0500</jf:modificationDate>
        <jf:date>Nov 13, 2007</jf:date>
        <jf:author>Petr Matejka</jf:author>
        <jf:replyCount>4</jf:replyCount>
    </item>


    <item>

        <title>Some Questions</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[This project looks really promising, we are in desperate need of two way replication.  I have some questions though:...]]></description>
        

        <pubDate>Tue, 13 Nov 2007 11:03:06 -0500</pubDate>

        

        <jf:creationDate>Tue, 13 Nov 2007 11:03:06 -0500</jf:creationDate>
        <jf:modificationDate>Tue, 13 Nov 2007 11:03:06 -0500</jf:modificationDate>
        <jf:date>Nov 13, 2007</jf:date>
        <jf:author>Jacob Champlin</jf:author>
        <jf:replyCount>1</jf:replyCount>
    </item>


    <item>

        <title>Re: SymmetricDS 1.0.0 Released - synchronizes databases</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[<blockquote>Using database triggers is the only approach SymmetricDS supports.  We keep the trigger code to a minimum so they are efficient.  Capturing data instead of statements can be an advantage.  For example, if you update data in the source...]]></description>
        

        <pubDate>Tue, 13 Nov 2007 09:38:38 -0500</pubDate>

        

        <jf:creationDate>Tue, 13 Nov 2007 09:38:38 -0500</jf:creationDate>
        <jf:modificationDate>Tue, 13 Nov 2007 09:38:38 -0500</jf:modificationDate>
        <jf:date>Nov 13, 2007</jf:date>
        <jf:author>John Brand</jf:author>
        <jf:replyCount>0</jf:replyCount>
    </item>


    <item>

        <title>Re: SymmetricDS 1.0.0 Released - synchronizes databases</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[Using database triggers is the only approach SymmetricDS supports.  We keep the trigger code to a minimum so they are efficient.  Capturing data instead of statements can be an advantage.  For example, if you update data in the source database that is...]]></description>
        

        <pubDate>Tue, 13 Nov 2007 09:30:29 -0500</pubDate>

        

        <jf:creationDate>Tue, 13 Nov 2007 09:30:29 -0500</jf:creationDate>
        <jf:modificationDate>Tue, 13 Nov 2007 09:30:29 -0500</jf:modificationDate>
        <jf:date>Nov 13, 2007</jf:date>
        <jf:author>Eric Long</jf:author>
        <jf:replyCount>1</jf:replyCount>
    </item>


    <item>

        <title>Re: Additional dialects</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[Yes, additional dialects are a priority for the next release.  We are working on PostgreSQL, MS SQL-Server, and Apache Derby.  We have a <a href="http://symmetricds.sourceforge.net/roadmap.html">roadmap</a> posted so you can see what other features and...]]></description>
        

        <pubDate>Tue, 13 Nov 2007 08:41:45 -0500</pubDate>

        

        <jf:creationDate>Tue, 13 Nov 2007 08:41:45 -0500</jf:creationDate>
        <jf:modificationDate>Tue, 13 Nov 2007 08:41:45 -0500</jf:modificationDate>
        <jf:date>Nov 13, 2007</jf:date>
        <jf:author>Eric Long</jf:author>
        <jf:replyCount>0</jf:replyCount>
    </item>


    <item>

        <title>Re: SymmetricDS 1.0.0 Released - synchronizes databases</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[Does Symmetric support undo/redo log replication as well as the trigger based approach?

If not, how much additional performance overhead can one expect on the source database?]]></description>
        

        <pubDate>Tue, 13 Nov 2007 03:53:23 -0500</pubDate>

        

        <jf:creationDate>Tue, 13 Nov 2007 03:53:23 -0500</jf:creationDate>
        <jf:modificationDate>Tue, 13 Nov 2007 03:53:23 -0500</jf:modificationDate>
        <jf:date>Nov 13, 2007</jf:date>
        <jf:author>John Brand</jf:author>
        <jf:replyCount>2</jf:replyCount>
    </item>


    <item>

        <title>Re: Where clause for restriction of synchronization items?</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[I'll probably try this in an upcomming project, looks like an awesome project.]]></description>
        

        <pubDate>Tue, 13 Nov 2007 03:22:44 -0500</pubDate>

        

        <jf:creationDate>Tue, 13 Nov 2007 03:22:44 -0500</jf:creationDate>
        <jf:modificationDate>Tue, 13 Nov 2007 03:22:44 -0500</jf:modificationDate>
        <jf:date>Nov 13, 2007</jf:date>
        <jf:author>han theman</jf:author>
        <jf:replyCount>0</jf:replyCount>
    </item>


    <item>

        <title>Additional dialects</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[Is there any plan or roadmap for additional dialects implementation?]]></description>
        

        <pubDate>Tue, 13 Nov 2007 03:21:58 -0500</pubDate>

        

        <jf:creationDate>Tue, 13 Nov 2007 03:21:58 -0500</jf:creationDate>
        <jf:modificationDate>Tue, 13 Nov 2007 03:21:58 -0500</jf:modificationDate>
        <jf:date>Nov 13, 2007</jf:date>
        <jf:author>Antonio Toma</jf:author>
        <jf:replyCount>1</jf:replyCount>
    </item>


    <item>

        <title>Re: Syncing with a local DB</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[Yes, this is possible.  You would deploy an instance of SymmetricDS per 'local' database with a node_group_id of 'local' (for example). ...]]></description>
        

        <pubDate>Mon, 12 Nov 2007 18:36:50 -0500</pubDate>

        

        <jf:creationDate>Mon, 12 Nov 2007 18:36:50 -0500</jf:creationDate>
        <jf:modificationDate>Mon, 12 Nov 2007 18:36:50 -0500</jf:modificationDate>
        <jf:date>Nov 12, 2007</jf:date>
        <jf:author>chenson42</jf:author>
        <jf:replyCount>2</jf:replyCount>
    </item>


    <item>

        <title>Syncing with a local DB</title>
        <link>http://www.theserverside.com/discussions/thread.tss?thread_id=47528</link>

        

        
            <description><![CDATA[I have an application on multiple JVMs and nodes and I would like a lot of data stored locally for performance or even in memory using Apache Derby. But I need all these copies to synchronize with the central Oracle cluster when the data changes...]]></description>
        

        <pubDate>Mon, 12 Nov 2007 16:18:35 -0500</pubDate>

        

        <jf:creationDate>Mon, 12 Nov 2007 16:18:35 -0500</jf:creationDate>
        <jf:modificationDate>Mon, 12 Nov 2007 16:18:35 -0500</jf:modificationDate>
        <jf:date>Nov 12, 2007</jf:date>
        <jf:author>Taruvai Subramaniam</jf:author>
        <jf:replyCount>3</jf:replyCount>
    </item>



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