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Applicable to the two node case.</td> - </tr><tr> - <td>CoalescingSync</td> - <td>boolean</td> - <td>Read only</td> - <td>Coalescing sync flag. Applicable to the master sync policies NO_SYNC and WRITE_NO_SYNC only.</td> - </tr><tr> - <td>getAllNodesInGroup</td> - <td>TabularData</td> - <td>Read only</td> - <td>Get all nodes within the group, regardless of whether currently attached or not</td> - </tr></tbody></table></div><div class="table"><table border="1">Mbean BDBHAMessageStore operations<thead><tr> - <td>Operation</td> - <td>Parameters</td> - <td>Returns</td> - <td>Description</td> - </tr></thead><tbody><tr> - <td>removeNodeFromGroup</td> - <td> - <p><span class="emphasis"><em>nodeName</em></span>, name of node, string</p> - </td> - <td>void</td> - <td>Remove an existing node from the group</td> - </tr><tr> - <td>updateAddress</td> - <td> - <div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p><span class="emphasis"><em>nodeName</em></span>, name of node, string</p></li><li class="listitem"><p><span class="emphasis"><em>newHostName</em></span>, new host name, string</p></li><li class="listitem"><p><span class="emphasis"><em>newPort</em></span>, new port number, int</p></li></ul></div> - </td> - <td>void</td> - <td>Update the address of another node. The node must be in a STOPPED state.</td> - </tr></tbody></table></div><div class="figure"><a id="idm140218886203216"></a><p class="title"><strong>Figure 13.7. BDBHAMessageStore view from jconsole.</strong></p><div class="figure-contents"><div><img alt="BDBHAMessageStore view from jconsole." src="images/HA-BDBHAMessageStore-MBean-jconsole.png" /></div></div></div><br class="figure-break" /><div class="example"><a id="idm140218886201712"></a><p class="title"><strong>Example 13.3. Example of java code to get the node state value</strong></p><div class="example-contents"><pre class="programlisting"> -Map<String, Object> environment = new HashMap<String, Object>(); - -// credentials: user name and password -environment.put(JMXConnector.CREDENTIALS, new String[] {"admin","admin"}); -JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9001/jmxrmi"); -JMXConnector jmxConnector = JMXConnectorFactory.connect(url, environment); -MBeanServerConnection mbsc = jmxConnector.getMBeanServerConnection(); - -ObjectName queueObjectName = new ObjectName("org.apache.qpid:type=BDBHAMessageStore,name=\"test\""); -String state = (String)mbsc.getAttribute(queueObjectName, "NodeState"); - -System.out.println("Node state:" + state); - </pre><p>Example system output:</p><pre class="screen">Node state:MASTER</pre></div></div><br class="example-break" /></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-ClientFailover.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-High-Availability-Monitoring-cluster.html">Next</a></td></tr><tr><td align="left" valign="top" width="40%">13.7. Client failover configuration </td><td align="center" width="20%"><a accesskey="h" href="index.html">Home</a></td><td align="right" valign="top" width="40%"> 13.9. Monitoring cluster</td></tr></table></div></div> - - <hr/> - - <ul id="-apache-navigation"> - <li><a href="http://www.apache.org/";>Apache</a></li> - <li><a href="http://www.apache.org/licenses/";>License</a></li> - <li><a href="http://www.apache.org/foundation/sponsorship.html";>Sponsorship</a></li> - <li><a href="http://www.apache.org/foundation/thanks.html";>Thanks!</a></li> - <li><a href="/security.html">Security</a></li> - <li><a href="http://www.apache.org/";><img id="-apache-feather" width="48" height="14" src="" alt="Apache"/></a></li> - </ul> - - <p id="-legal"> - Apache Qpid, Messaging built on AMQP; Copyright © 2015 - The Apache Software Foundation; Licensed under - the <a href="http://www.apache.org/licenses/LICENSE-2.0";>Apache - License, Version 2.0</a>; Apache Qpid, Qpid, Qpid Proton, - Proton, Apache, the Apache feather logo, and the Apache Qpid - project logo are trademarks of The Apache Software - Foundation; All other marks mentioned may be trademarks or - registered trademarks of their respective owners - </p> - </div> - </div> - </div> - </body> -</html>
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The data will be automatically copied from Master to Replica on Replica start-up. - This will take a period of time determined by the size of the Masters store and the network bandwidth between the nodes.</p><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Note</h3><p>Due to existing caveats in Berkeley JE with copying of data from Master into Replica it is recommended to restart the Master node after store schema upgrade is finished before starting the Replica nodes.</p></div></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-High-Availability-DisasterRecovery.html">Next</a></td></tr><tr><td align="left" valign="top" width="40%">13.13. Backups </td><td align="center" width="20%"><a accesskey="h" h ref="index.html">Home</a></td><td align="right" valign="top" width="40%"> 13.15. Disaster Recovery</td></tr></table></div></div> - - <hr/> - - <ul id="-apache-navigation"> - <li><a href="http://www.apache.org/";>Apache</a></li> - <li><a href="http://www.apache.org/licenses/";>License</a></li> - <li><a href="http://www.apache.org/foundation/sponsorship.html";>Sponsorship</a></li> - <li><a href="http://www.apache.org/foundation/thanks.html";>Thanks!</a></li> - <li><a href="/security.html">Security</a></li> - <li><a href="http://www.apache.org/";><img id="-apache-feather" width="48" height="14" src="" alt="Apache"/></a></li> - </ul> - - <p id="-legal"> - Apache Qpid, Messaging built on AMQP; Copyright © 2015 - The Apache Software Foundation; Licensed under - the <a href="http://www.apache.org/licenses/LICENSE-2.0";>Apache - License, Version 2.0</a>; Apache Qpid, Qpid, Qpid Proton, - Proton, Apache, the Apache feather logo, and the Apache Qpid - project logo are trademarks of The Apache Software - Foundation; All other marks mentioned may be trademarks or - registered trademarks of their respective owners - </p> - </div> - </div> - </div> - </body> -</html> http://git-wip-us.apache.org/repos/asf/qpid-site/blob/a39b425b/content/releases/qpid-0.26/java-broker/book/Java-Broker-High-Availability-Monitoring-cluster.html ---------------------------------------------------------------------- diff --git a/content/releases/qpid-0.26/java-broker/book/Java-Broker-High-Availability-Monitoring-cluster.html b/content/releases/qpid-0.26/java-broker/book/Java-Broker-High-Availability-Monitoring-cluster.html deleted file mode 100644 index 86e5359..0000000 --- a/content/releases/qpid-0.26/java-broker/book/Java-Broker-High-Availability-Monitoring-cluster.html +++ /dev/null @@ -1,160 +0,0 @@ -<!DOCTYPE html> -<!-- - - - - Licensed to the Apache Software Foundation (ASF) under one - - or more contributor license agreements. 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It can indicate that Master virtual host has gone down.</p></li><li class="listitem"><p><span class="emphasis"><em>MST-1006 :</em></span> Recovery Complete. It can indicate that a former Replica virtual host is up and became the Master.</p></li></ul></div></li><li class="listitem"><p>Disk space usage and system load using system tools.</p></li><li class="listitem"><p>Berkeley HA node status using <a class="ulink" href="http://docs.oracle.com/cd/E17277_02/html/java/com/sleepycat/je/rep/util/DbPing.html"; target="_top"><code class="classname">DbPing</code></a> utility.</p><div class="example"><a id="idm140218886189936"> </a><p class="title"><strong>Example 13.4. Using <code class="classname">DbPing</code> utility for monitoring HA nodes.</strong></p><div class="example-contents"><span class="command"><strong> -java -jar je-5.0.97.jar DbPing -groupName TestClusterGroup -nodeName Node-5001 -nodeHost localhost:5001 -socketTimeout 10000 -</strong></span><pre class="screen"> -Current state of node: Node-5001 from group: TestClusterGroup - Current state: MASTER - Current master: Node-5001 - Current JE version: 5.0.97 - Current log version: 8 - Current transaction end (abort or commit) VLSN: 165 - Current master transaction end (abort or commit) VLSN: 0 - Current active feeders on node: 0 - Current system load average: 0.35 -</pre></div></div><br class="example-break" /><p>In the example above <code class="classname">DbPing</code> utility requested status of Cluster node with name - <span class="emphasis"><em>Node-5001</em></span> from replication group <span class="emphasis"><em>TestClusterGroup</em></span> running on host <span class="emphasis"><em>localhost:5001</em></span>. - The state of the node was reported into a system output. - </p></li><li class="listitem"><p>Using Qpid broker JMX interfaces.</p><p>Mbean <code class="classname">BDBHAMessageStore</code> can be used to request the following node information:</p><div class="itemizedlist"><ul class="itemizedlist" type="circle"><li class="listitem"><p><span class="emphasis"><em>NodeState</em></span> indicates whether node is a Master or Replica.</p></li><li class="listitem"><p><span class="emphasis"><em>Durability</em></span> replication durability.</p></li><li class="listitem"><p><span class="emphasis"><em>DesignatedPrimary</em></span> indicates whether Master node is designated primary.</p></li><li class="listitem"><p><span class="emphasis"><em>GroupName</em></span> replication group name.</p></li><li class="listitem"><p><span class="emphasis"><em>NodeName</em></span> node name.</p></li><li class="listitem"><p><span class="emphasis"><em>NodeHostPort</em></span> node host and port.</p></li><li class="listitem"><p><span class="emphasis"><em>HelperH ostPort</em></span> helper host and port.</p></li><li class="listitem"><p><span class="emphasis"><em>AllNodesInGroup</em></span> lists of all nodes in the replication group including their names, hosts and ports.</p></li></ul></div><p>For more details about <code class="classname">BDBHAMessageStore</code> MBean please refer section <a class="link" href="Java-Broker-High-Availability-JMXAPI.html" title="13.8. Qpid JMX API for HA">Qpid JMX API for HA</a></p></li></ul></div></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-JMXAPI.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-High-Availability-DiskSpace.html">Next</a></td></tr><tr><td align="left" valign="top" width="40%">13.8. Qpid JMX API for HA </td><td align="center" width="20%"><a accesskey="h" href="index.html">Home</a></td><td align="right" valign="top" width="40%"> 13.10. Disk space requirements</td></tr></table></div></div> - - <hr/> - - <ul id="-apache-navigation"> - <li><a href="http://www.apache.org/";>Apache</a></li> - <li><a href="http://www.apache.org/licenses/";>License</a></li> - <li><a href="http://www.apache.org/foundation/sponsorship.html";>Sponsorship</a></li> - <li><a href="http://www.apache.org/foundation/thanks.html";>Thanks!</a></li> - <li><a href="/security.html">Security</a></li> - <li><a href="http://www.apache.org/";><img id="-apache-feather" width="48" height="14" src="" alt="Apache"/></a></li> - </ul> - - <p id="-legal"> - Apache Qpid, Messaging built on AMQP; 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HA is provided by way of the HA - features built into the <a class="ulink" href="http://www.oracle.com/technetwork/products/berkeleydb/overview/index-093405.html"; target="_top">Java Edition of the Berkley Database (BDB JE)</a> and as such - is currently only available to Java Broker users who use the optional BDB JE based persistence store. This - <span class="bold"><strong>optional</strong></span> store requires the use of BDB JE which is licensed under the Sleepycat Licence, which is - not compatible with the Apache Licence and thus BDB JE is not distributed with Qpid. Users who elect to use this optional store for - the broker have to provide this dependency.</p><p>HA in the Java Broker provides an <span class="bold"><strong>Active/Passive</strong></span> mode of operation with Virtual hosts being - the unit of replication. The Active node (referred to as the <span class="bold"><strong>Master</strong></span>) accepts all work from all the clients. - The Passive nodes (referred to as <span class="bold"><strong>Replicas</strong></span>) are unavailable for work: the only task they must perform is - to remain in synch with the Master node by consuming a replication stream containing all data and state.</p><p>If the Master node fails, a Replica node is elected to become the new Master node. All clients automatically failover - <a class="footnote" href="#ftn.idm140218887066704" id="idm140218887066704"><sup class="footnote">[5]</sup></a> to the new Master and continue their work.</p><p>The Java Broker HA solution is incompatible with the HA solution offered by the CPP Broker. It is not possible to co-locate Java and CPP - Brokers within the same cluster.</p><p>HA is not currently available for those using the the <span class="bold"><strong>Derby Store</strong></span> or <span class="bold"><strong>Memory - Message Store</strong></span>.</p><div class="footnotes"><br /><hr align="left" width="100" /><div class="footnote" id="ftn.idm140218887066704"><p><a class="para" href="#idm140218887066704"><sup class="para">[5] </sup></a>The automatic failover feature is available only for AMQP connections from the Java client. Management connections (JMX) - do not current offer this feature.</p></div></div></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.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-High-Availability-TwoNodeCluster.html">Next</a></td></tr><tr><td align="left" valign="top" width="40%">Chapter 13. High Availability </td><td align="center" width="20%"><a accesskey="h" href="index.html">Home</a></td><td align="right" valign="top" width="40%"> 13.3. Two Node Cluster</td></tr></table></div></div> - - <hr/> - - <ul id="-apache-navigation"> - <li><a href="http://www.apache.org/";>Apache</a></li> - <li><a href="http://www.apache.org/licenses/";>License</a></li> - <li><a href="http://www.apache.org/foundation/sponsorship.html";>Sponsorship</a></li> - <li><a href="http://www.apache.org/foundation/thanks.html";>Thanks!</a></li> - <li><a href="/security.html">Security</a></li> - <li><a href="http://www.apache.org/";><img id="-apache-feather" width="48" height="14" src="" alt="Apache"/></a></li> - </ul> - - <p id="-legal"> - Apache Qpid, Messaging built on AMQP; Copyright © 2015 - The Apache Software Foundation; Licensed under - the <a href="http://www.apache.org/licenses/LICENSE-2.0";>Apache - License, Version 2.0</a>; Apache Qpid, Qpid, Qpid Proton, - Proton, Apache, the Apache feather logo, and the Apache Qpid - project logo are trademarks of The Apache Software - Foundation; All other marks mentioned may be trademarks or - registered trademarks of their respective owners - </p> - </div> - </div> - </div> - </body> -</html> http://git-wip-us.apache.org/repos/asf/qpid-site/blob/a39b425b/content/releases/qpid-0.26/java-broker/book/Java-Broker-High-Availability-Performance.html ---------------------------------------------------------------------- diff --git a/content/releases/qpid-0.26/java-broker/book/Java-Broker-High-Availability-Performance.html b/content/releases/qpid-0.26/java-broker/book/Java-Broker-High-Availability-Performance.html deleted file mode 100644 index 1ac6eca..0000000 --- a/content/releases/qpid-0.26/java-broker/book/Java-Broker-High-Availability-Performance.html +++ /dev/null @@ -1,250 +0,0 @@ -<!DOCTYPE html> -<!-- - - - - Licensed to the Apache Software Foundation (ASF) under one - - or more contributor license agreements. 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Network bandwidth was 1Gbit. - </p><p>We ran Master node on the first server and Replica and clients(both consumers and producers) on the second server.</p><p>In non-HA case Qpid Broker was run on a first server and clients were run on a second server.</p><p>The table below contains the test results we measured on this environment for different Broker configurations.</p><p>Each result is represented by throughput value in KB/second and difference in % between HA configuration and non HA case for the same number of clients.</p><div class="table"><table border="1">Performance Comparison<thead><tr> - <td>Test/Broker</td> - <td>No HA</td> - <td>SYNC, SYNC, ALL</td> - <td>WRITE_NO_SYNC, WRITE_NO_SYNC, ALL</td> - <td>WRITE_NO_SYNC, WRITE_NO_SYNC, ALL - coalescing-sync</td> - <td>WRITE_NO_SYNC, NO_SYNC,ALL - coalescing-sync</td> - <td>NO_SYNC, NO_SYNC, ALL - coalescing-sync</td> - </tr></thead><tbody><tr> - <td>1 (1/1)</td> - <td>0.0%</td> - <td>-61.4%</td> - <td>117.0%</td> - <td>-16.02%</td> - <td>-9.58%</td> - <td>-25.47%</td> - </tr><tr> - <td>2 (2/2)</td> - <td>0.0%</td> - <td>-75.43%</td> - <td>67.87%</td> - <td>-66.6%</td> - <td>-69.02%</td> - <td>-30.43%</td> - </tr><tr> - <td>3 (4/4)</td> - <td>0.0%</td> - <td>-84.89%</td> - <td>24.19%</td> - <td>-71.02%</td> - <td>-69.37%</td> - <td>-43.67%</td> - </tr><tr> - <td>4 (8/8)</td> - <td>0.0%</td> - <td>-91.17%</td> - <td>-22.97%</td> - <td>-82.32%</td> - <td>-83.42%</td> - <td>-55.5%</td> - </tr><tr> - <td>5 (16/16)</td> - <td>0.0%</td> - <td>-91.16%</td> - <td>-21.42%</td> - <td>-86.6%</td> - <td>-86.37%</td> - <td>-46.99%</td> - </tr><tr> - <td>6 (32/32)</td> - <td>0.0%</td> - <td>-94.83%</td> - <td>-51.51%</td> - <td>-92.15%</td> - <td>-92.02%</td> - <td>-57.59%</td> - </tr><tr> - <td>7 (64/64)</td> - <td>0.0%</td> - <td>-94.2%</td> - <td>-41.84%</td> - <td>-89.55%</td> - <td>-89.55%</td> - <td>-50.54%</td> - </tr></tbody></table></div><p>The figure below depicts the graphs for the performance test results</p><div class="figure"><a id="idm140218886060608"></a><p class="title"><strong>Figure 13.8. Test results</strong></p><div class="figure-contents"><div><img alt="Test results" src="images/HA-perftests-results.png" /></div></div></div><br class="figure-break" /><p>On using durability <span class="emphasis"><em>SYNC,SYNC,ALL</em></span> (without coalescing-sync) the performance drops significantly (by 62-95%) in comparison with non HA broker.</p><p>Whilst, on using durability <span class="emphasis"><em>WRITE_NO_SYNC,WRITE_NO_SYNC,ALL</em></span> (without coalescing-sync) the performance drops by only half, but with loss of durability guarantee, so is not recommended.</p><p>In order to have better performance with HA, Qpid Broker comes up with the special mode called <a class="link" href="Java-Broker-High-Availability-DurabilityGuarantee.html#Java-Broker-High-Availability -DurabilityGuarantee_CoalescingSync" title="13.6.2. Coalescing-sync">coalescing-sync</a>, - With this mode enabled, Qpid broker batches the concurrent transaction commits and syncs transaction data into Master disk in one go. - As result, the HA performance only drops by 25-60% for durability <span class="emphasis"><em>NO_SYNC,NO_SYNC,ALL</em></span> and by 10-90% for <span class="emphasis"><em>WRITE_NO_SYNC,WRITE_NO_SYNC,ALL</em></span>.</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-DisasterRecovery.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-Virtual-Hosts-Configuration-File.html">Next</a></td></tr><tr><td align="left" valign="top" width="40%">13.15. Disaster Recovery </td><td align="center" width="20%"><a accesskey="h" href="index.html">Home</a></td><td align="right" valign="top" width="40%"> Chapter 14. Virtual Host XML configuration file</td></tr></table></div></div> - - <hr/> - - <ul id="-apache-navigation"> - <li><a href="http://www.apache.org/";>Apache</a></li> - <li><a href="http://www.apache.org/licenses/";>License</a></li> - <li><a href="http://www.apache.org/foundation/sponsorship.html";>Sponsorship</a></li> - <li><a href="http://www.apache.org/foundation/thanks.html";>Thanks!</a></li> - <li><a href="/security.html">Security</a></li> - <li><a href="http://www.apache.org/";><img id="-apache-feather" width="48" height="14" src="" alt="Apache"/></a></li> - </ul> - - <p id="-legal"> - Apache Qpid, Messaging built on AMQP; 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