| <div class="docbook"><div class="navheader"><table summary="Navigation header" width="100%"><tr><th align="center" colspan="3">10.11. Reset Group Information</th></tr><tr><td align="left" width="20%"><a accesskey="p" href="Java-Broker-High-Availability-Backup.html">Prev</a> </td><th align="center" width="60%">Chapter 10. High Availability</th><td align="right" width="20%"> <a accesskey="n" href="Java-Broker-Backup-And-Recovery.html">Next</a></td></tr></table><hr /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Java-Broker-High-Availability-Reset-Group-Infomational"></a>10.11. Reset Group Information</h2></div></div></div><p>BDB JE internally stores details of the group within its database. There are some | |
| circumstances when resetting this information is useful.</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Copying data between environments (e.g. production to UAT)</p></li><li class="listitem"><p>Some disaster recovery situations where a group must be recreated on new | |
| hardware</p></li></ul></div><p>This is not an normal operation and is not usually required</p><p>The following command replaces the group table contained within the JE logs files with the | |
| provided information. </p><div class="example"><a id="d0e7115"></a><p class="title"><strong>Example 10.1. Resetting of replication group with <code class="classname">DbResetRepGroup</code></strong></p><div class="example-contents"><div class="cmdsynopsis"><p><code class="command">java</code> -cp je-7.4.5.jar com.sleepycat.je.rep.util.DbResetRepGroup -h <em class="replaceable"><code>path/to/jelogfiles</code></em> <br /> -groupName <em class="replaceable"><code>newgroupname</code></em> -nodeName <em class="replaceable"><code>newnodename</code></em> -nodeHostPort <em class="replaceable"><code>newhostname:5000</code></em> </p></div></div></div><br class="example-break" /><p>The modified log files can then by copied into | |
| <code class="literal">${QPID_WORK}/<nodename>/config</code> directory of a target Broker. Then | |
| start the Broker, and add a BDB HA Virtualhost node specify the same group name, node name and | |
| node address. You will then have a group with a single node, ready to start re-adding | |
| additional nodes as described above. </p></div><div class="navfooter"><hr /><table summary="Navigation footer" width="100%"><tr><td align="left" width="40%"><a accesskey="p" href="Java-Broker-High-Availability-Backup.html">Prev</a> </td><td align="center" width="20%"><a accesskey="u" href="Java-Broker-High-Availability.html">Up</a></td><td align="right" width="40%"> <a accesskey="n" href="Java-Broker-Backup-And-Recovery.html">Next</a></td></tr><tr><td align="left" valign="top" width="40%">10.10. Backups </td><td align="center" width="20%"><a accesskey="h" href="Apache-Qpid-Broker-J-Book.html">Home</a></td><td align="right" valign="top" width="40%"> Chapter 11. Backup And Recovery</td></tr></table></div></div> |