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<!-- Begin Markdown -->
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<h2 class="section" id='H1'><a href="#H1" class="sectionlink"><i class="icon-share-alt"> </i></a>Ticket Replication & Advanced Administration</h2><p><em>SINCE 1.4.0</em></p><p><strong>Ticket Replication</strong><br/>Gitblit does <em>not</em> provide a generic/universal replication mechanism that works across all persistence backends.</p><p><strong>Advanced Administration</strong><br/>Gitblit does <em>not</em> provide a generic/universal for advanced administration (i.e. manually tweaking ticket data) however each service does have a strategy for that case.</p>
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<h3 class="section" id='H2'><a href="#H2" class="sectionlink"><i class="icon-share-alt"> </i></a>FileTicketService</h3>
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<h4 class="section" id='H3'><a href="#H3" class="sectionlink"><i class="icon-share-alt"> </i></a>Ticket Replication</h4><p>Replication is not supported.</p>
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<h4 class="section" id='H4'><a href="#H4" class="sectionlink"><i class="icon-share-alt"> </i></a>Advanced Administration</h4><p>Use your favorite text editor to <strong>carefully</strong> manipulate a ticket's journal file. I recommend using a JSON validation service to ensure your changes are valid JSON.</p><p>After you've done this, you will need to reset Gitblit's internal ticket cache and you may need to reindex the tickets, depending on your changes.</p>
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<h3 class="section" id='H5'><a href="#H5" class="sectionlink"><i class="icon-share-alt"> </i></a>BranchTicketService</h3>
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<h4 class="section" id='H6'><a href="#H6" class="sectionlink"><i class="icon-share-alt"> </i></a>Ticket Replication</h4><p>Gitblit supports ticket replication for a couple of scenarios with the <em>BranchTicketService</em>. This requires that the Gitblit instance receiving the ticket data be configured for the <em>BranchTicketService</em>. Likewise, the source of the ticket data must be a repository that has ticket data persisted using the <em>BranchTicketService</em>.</p>
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<h5 class="section" id='H7'><a href="#H7" class="sectionlink"><i class="icon-share-alt"> </i></a>Manually Pushing refs/meta/gitblit/tickets</h5><p>Let's say you wanted to create a perfect clone of the Gitblit repository hosted at <a href="https://dev.gitblit.com">https://dev.gitblit.com</a> in your own Gitblit instance. We'll use this repository as an example because it is configured for the <em>BranchTicketService</em>.</p><p><strong>Assumptions</strong></p>
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<ol>
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<li>We are pushing to our local Gitblit with the admin account, or some other privileged account</li>
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<li>Our local Gitblit is configured for create-on-push</li>
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<li>Our local Gitblit is configured for the <em>BranchTicketService</em></li>
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</ol><p><strong>Procedure</strong></p>
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<ol>
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<li>First we'll clone a mirror of the source repository:<pre>git clone --mirror <a href="https://dev.gitblit.com/r/gitblit.git">https://dev.gitblit.com/r/gitblit.git</a> </pre></li>
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<li>Then we'll add a remote for our local Gitblit instance:<pre>cd gitblit.git<br/>git remote add local <a href="https://localhost:8443/gitblit.git">https://localhost:8443/gitblit.git</a> </pre></li>
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<li>Then we'll push <em>everything</em> to our local Gitblit:<pre>git push --mirror local</pre></li>
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</ol><p>If your push was successful you should have a new repository with the entire official Gitblit tickets data.</p>
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<h5 class="section" id='H8'><a href="#H8" class="sectionlink"><i class="icon-share-alt"> </i></a>Mirroring refs/meta/gitblit/tickets</h5><p>Gitblit 1.4.0 introduces a mirroring service. This is not the same as the federation feature - although there are similarities.</p><p>If you setup a mirror of another Gitblit repository which uses the <em>BranchTicketService</em> <strong>AND</strong> your Gitblit instance is configured for <em>BranchTicketService</em>, then your Gitblit will automatically fetch and reindex all tickets without intervention or further configuration.</p><p><strong>Things to note about mirrors...</strong></p>
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<ol>
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<li>You must set <em>git.enableMirroring=true</em> and optionally change <em>git.mirrorPeriod</em></li>
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<li>Mirrors are read-only. You can not push to a mirror. You can not manipulate a mirror's ticket data.</li>
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<li>Mirrors are a Git feature - not a Gitblit invention. To create one you must currently use Git within your <em>git.repositoriesFolder</em>, you must reset your cache, and you must trigger a ticket reindex.<pre>git clone --mirror <url><br/>curl --insecure --user admin:admin "https://localhost:8443/rpc?req=clear_repository_cache"<br/>curl --insecure --user admin:admin "https://localhost:8443/rpc?req=reindex_tickets&name=<repo>"</pre></li>
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<li>After you have indexed the repository, Gitblit will take over and incrementally update your tickets data on each fetch.</li>
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</ol>
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<h4 class="section" id='H9'><a href="#H9" class="sectionlink"><i class="icon-share-alt"> </i></a>Advanced Administration</h4><p>Repository owners or Gitblit administrators have the option of manually editing ticket data. To do this you must fetch and checkout the <code>refs/meta/gitblit/tickets</code> ref. This orphan branch is where ticket data is stored. You may then use a text editor to <strong>carefully</strong> manipulate journals and push your changes back upstream. I recommend using a JSON validation tool to ensure your changes are valid JSON.</p>
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<pre><code>git fetch origin refs/meta/gitblit/tickets
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git checkout -B tix FETCH_HEAD
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...fix data...
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git add .
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git commit
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git push origin HEAD:refs/meta/gitblit/tickets
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</code></pre><p>Gitblit will identify the incoming <code>refs/meta/gitblit/tickets</code> ref update and will incrementally index the changed tickets OR, if the update is non-fast-forward, all tickets on that branch will be reindexed.</p>
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<h3 class="section" id='H10'><a href="#H10" class="sectionlink"><i class="icon-share-alt"> </i></a>RedisTicketService</h3>
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<h4 class="section" id='H11'><a href="#H11" class="sectionlink"><i class="icon-share-alt"> </i></a>Ticket Replication</h4><p>Redis is capable of sophisticated replication and clustering. I have not configured Redis replication myself. If this topic interests you please document your procedure and open a pull request to improve this section for others who may also be interested in Redis replication.</p>
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<h4 class="section" id='H12'><a href="#H12" class="sectionlink"><i class="icon-share-alt"> </i></a>Advanced Administration</h4><p>You can directly manipulate the journals in Redis. The most convenient way do manipulate data is using the simple, but very competent, <a href="http://redisdesktop.com">RedisDesktopManager</a>. It even provides JSON pretty printing which faciliates editing.</p><p>After you've done this, you will need to reset Gitblit's internal ticket cache and you may need to reindex the tickets, depending on your changes.</p><p>The schema of the Redis backend looks like this <em>repository:object:id</em>.</p>
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<pre><code>redis 127.0.0.1:6379> keys *
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1) "~james/mytickets.git:ticket:8"
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2) "~james/mytickets.git:journal:8"
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3) "~james/mytickets.git:ticket:4"
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4) "~james/mytickets.git:counter"
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5) "~james/mytickets.git:journal:2"
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6) "~james/mytickets.git:journal:4"
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7) "~james/mytickets.git:journal:7"
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8) "~james/mytickets.git:ticket:3"
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9) "~james/mytickets.git:ticket:6"
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10) "~james/mytickets.git:journal:1"
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11) "~james/mytickets.git:ticket:2"
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12) "~james/mytickets.git:journal:6"
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13) "~james/mytickets.git:ticket:7"
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14) "~james/mytickets.git:ticket:1"
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15) "~james/mytickets.git:journal:3"
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</code></pre><p><strong>Some notes about the Redis backend</strong><br/>The <em>ticket</em> object keys are provided as a convenience for integration with other systems. Gitblit does not read those keys, but it does update them.</p><p>The <em>journal</em> object keys are the important ones. Gitblit maintains ticket change journals. The <em>journal</em> object keys are Redis LISTs where each list entry is a JSON change document.</p><p>The other important object key is the <em>counter</em> which is used to assign ticket ids.</p>
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<h3 class="section" id='H13'><a href="#H13" class="sectionlink"><i class="icon-share-alt"> </i></a>Resetting the Tickets Cache and Reindexing Tickets</h3><p>Reindexing can be memory exhaustive. It obviously depends on the number of tickets you have. Normally, you won't need to manually reindex but if you do, offline reindexing is recommended.</p>
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<h4 class="section" id='H14'><a href="#H14" class="sectionlink"><i class="icon-share-alt"> </i></a>Offline Reindexing</h4>
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<h5 class="section" id='H15'><a href="#H15" class="sectionlink"><i class="icon-share-alt"> </i></a>Gitblit GO</h5><p>Gitblit GO ships with a script that executes the <em>com.gitblit.ReindexTickets</em> tool included in the Gitblit jar file. This tool will reindex <em>all</em> tickets in <em>all</em> repositories <strong>AND</strong> must be run when Gitblit is offline.</p>
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<pre><code>reindex-tickets <baseFolder>
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</code></pre>
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<h5 class="section" id='H16'><a href="#H16" class="sectionlink"><i class="icon-share-alt"> </i></a>Gitblit WAR/Express</h5><p>Gitblit WAR/Express does not ship with anything other than the WAR, but you can still reindex tickets offline with a little extra effort.</p><p><em>Windows</em></p>
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<pre><code>java -cp "C:/path/to/WEB-INF/lib/*" com.gitblit.ReindexTickets --baseFolder <baseFolder>
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</code></pre><p><em>Linux/Unix/Mac OSX</em></p>
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<pre><code>java -cp /path/to/WEB-INF/lib/* com.gitblit.ReindexTickets --baseFolder <baseFolder>
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</code></pre>
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<h4 class="section" id='H17'><a href="#H17" class="sectionlink"><i class="icon-share-alt"> </i></a>Live Reindexing</h4><p>You can trigger a live reindex of tickets for any backend using Gitblit's RPC interface and curl or your browser. This will also reset Gitblit's internal ticket cache. Use of this RPC requires <em>web.enableRpcServlet=true</em> and <em>web.enableRpcManagement=true</em> along with administrator credentials.</p>
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<pre><code>curl --insecure --user admin:admin "https://localhost:8443/rpc?req=reindex_tickets"
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curl --insecure --user admin:admin "https://localhost:8443/rpc?req=reindex_tickets&name=gitblit.git"
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</code></pre>
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<h4 class="section" id='H18'><a href="#H18" class="sectionlink"><i class="icon-share-alt"> </i></a>Migrating Tickets between Ticket Services</h4>
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<h5 class="section" id='H19'><a href="#H19" class="sectionlink"><i class="icon-share-alt"> </i></a>Gitblit GO</h5><p>Gitblit GO ships with a script that executes the <em>com.gitblit.MigrateTickets</em> tool included in the Gitblit jar file. This tool will migrate <em>all</em> tickets in <em>all</em> repositories <strong>AND</strong> must be run when Gitblit is offline.</p>
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<pre><code>migrate-tickets <outputservice> <baseFolder>
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</code></pre><p>For example, this would migrate tickets from the current ticket service configured in <code>c:\gitblit-data\gitblit.properties</code> to a Redis ticket service. The Redis service is configured in the same config file so you must be sure to properly setup all appropriate Redis settings.</p>
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<pre><code>migrate-tickets com.gitblit.tickets.RedisTicketService c:\gitblit-data
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</code></pre>
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<h5 class="section" id='H20'><a href="#H20" class="sectionlink"><i class="icon-share-alt"> </i></a>Gitblit WAR</h5><p>Gitblit WAR does not ship with anything other than the WAR, but you can still migrate tickets offline with a little extra effort.</p><p><em>Windows</em></p>
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<pre><code>java -cp "C:/path/to/WEB-INF/lib/*" com.gitblit.MigrateTickets <outputservice> --baseFolder <baseFolder>
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</code></pre><p><em>Linux/Unix/Mac OSX</em></p>
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<pre><code>java -cp /path/to/WEB-INF/lib/* com.gitblit.MigrateTickets <outputservice> --baseFolder <baseFolder>
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</code></pre>
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