Author: olamy
Date: Mon Apr 25 08:18:23 2022
New Revision: 1900255
URL: http://svn.apache.org/viewvc?rev=1900255&view=rev
Log:
Site checkin for project Apache Helix :: Website
Modified:
helix/site-content/0.9.9-docs/Building.html
helix/site-content/0.9.9-docs/Features.html
helix/site-content/0.9.9-docs/Metrics.html
helix/site-content/0.9.9-docs/Quickstart.html
helix/site-content/0.9.9-docs/Tutorial.html
helix/site-content/0.9.9-docs/auto_exit_maintenance.html
helix/site-content/0.9.9-docs/design_crushed.html
helix/site-content/0.9.9-docs/download.html
helix/site-content/0.9.9-docs/index.html
helix/site-content/0.9.9-docs/privacy-policy.html
helix/site-content/0.9.9-docs/quota_scheduling.html
helix/site-content/0.9.9-docs/recipes/lock_manager.html
helix/site-content/0.9.9-docs/recipes/rabbitmq_consumer_group.html
helix/site-content/0.9.9-docs/recipes/rsync_replicated_file_store.html
helix/site-content/0.9.9-docs/recipes/service_discovery.html
helix/site-content/0.9.9-docs/recipes/task_dag_execution.html
helix/site-content/0.9.9-docs/releasenotes/release-0.9.9.html
helix/site-content/0.9.9-docs/tutorial_admin.html
helix/site-content/0.9.9-docs/tutorial_agent.html
helix/site-content/0.9.9-docs/tutorial_controller.html
helix/site-content/0.9.9-docs/tutorial_health.html
helix/site-content/0.9.9-docs/tutorial_messaging.html
helix/site-content/0.9.9-docs/tutorial_participant.html
helix/site-content/0.9.9-docs/tutorial_propstore.html
helix/site-content/0.9.9-docs/tutorial_rebalance.html
helix/site-content/0.9.9-docs/tutorial_rest_service.html
helix/site-content/0.9.9-docs/tutorial_spectator.html
helix/site-content/0.9.9-docs/tutorial_state.html
helix/site-content/0.9.9-docs/tutorial_task_framework.html
helix/site-content/0.9.9-docs/tutorial_task_throttling.html
helix/site-content/0.9.9-docs/tutorial_throttling.html
helix/site-content/0.9.9-docs/tutorial_ui.html
helix/site-content/0.9.9-docs/tutorial_user_content_store.html
helix/site-content/0.9.9-docs/tutorial_user_def_rebalancer.html
helix/site-content/0.9.9-docs/tutorial_yaml.html
helix/site-content/1.0.2-docs/Building.html
helix/site-content/1.0.2-docs/Features.html
helix/site-content/1.0.2-docs/Metrics.html
helix/site-content/1.0.2-docs/Quickstart.html
helix/site-content/1.0.2-docs/Tutorial.html
helix/site-content/1.0.2-docs/auto_exit_maintenance.html
helix/site-content/1.0.2-docs/design_crushed.html
helix/site-content/1.0.2-docs/download.html
helix/site-content/1.0.2-docs/index.html
helix/site-content/1.0.2-docs/privacy-policy.html
helix/site-content/1.0.2-docs/quota_scheduling.html
helix/site-content/1.0.2-docs/recipes/lock_manager.html
helix/site-content/1.0.2-docs/recipes/rabbitmq_consumer_group.html
helix/site-content/1.0.2-docs/recipes/rsync_replicated_file_store.html
helix/site-content/1.0.2-docs/recipes/service_discovery.html
helix/site-content/1.0.2-docs/recipes/task_dag_execution.html
helix/site-content/1.0.2-docs/releasenotes/release-1.0.2.html
helix/site-content/1.0.2-docs/tutorial_admin.html
helix/site-content/1.0.2-docs/tutorial_agent.html
helix/site-content/1.0.2-docs/tutorial_cloud_support.html
helix/site-content/1.0.2-docs/tutorial_controller.html
helix/site-content/1.0.2-docs/tutorial_customized_view.html
helix/site-content/1.0.2-docs/tutorial_distributed_lock.html
helix/site-content/1.0.2-docs/tutorial_health.html
helix/site-content/1.0.2-docs/tutorial_messaging.html
helix/site-content/1.0.2-docs/tutorial_participant.html
helix/site-content/1.0.2-docs/tutorial_propstore.html
helix/site-content/1.0.2-docs/tutorial_rebalance.html
helix/site-content/1.0.2-docs/tutorial_rest_service.html
helix/site-content/1.0.2-docs/tutorial_spectator.html
helix/site-content/1.0.2-docs/tutorial_state.html
helix/site-content/1.0.2-docs/tutorial_task_framework.html
helix/site-content/1.0.2-docs/tutorial_task_throttling.html
helix/site-content/1.0.2-docs/tutorial_throttling.html
helix/site-content/1.0.2-docs/tutorial_ui.html
helix/site-content/1.0.2-docs/tutorial_user_content_store.html
helix/site-content/1.0.2-docs/tutorial_user_def_rebalancer.html
helix/site-content/1.0.2-docs/tutorial_yaml.html
helix/site-content/1.0.3-docs/Building.html
helix/site-content/1.0.3-docs/Features.html
helix/site-content/1.0.3-docs/Metrics.html
helix/site-content/1.0.3-docs/Quickstart.html
helix/site-content/1.0.3-docs/Tutorial.html
helix/site-content/1.0.3-docs/auto_exit_maintenance.html
helix/site-content/1.0.3-docs/design_crushed.html
helix/site-content/1.0.3-docs/download.html
helix/site-content/1.0.3-docs/index.html
helix/site-content/1.0.3-docs/privacy-policy.html
helix/site-content/1.0.3-docs/quota_scheduling.html
helix/site-content/1.0.3-docs/recipes/lock_manager.html
helix/site-content/1.0.3-docs/recipes/rabbitmq_consumer_group.html
helix/site-content/1.0.3-docs/recipes/rsync_replicated_file_store.html
helix/site-content/1.0.3-docs/recipes/service_discovery.html
helix/site-content/1.0.3-docs/recipes/task_dag_execution.html
helix/site-content/1.0.3-docs/releasenotes/release-1.0.3.html
helix/site-content/1.0.3-docs/tutorial_admin.html
helix/site-content/1.0.3-docs/tutorial_agent.html
helix/site-content/1.0.3-docs/tutorial_cloud_support.html
helix/site-content/1.0.3-docs/tutorial_controller.html
helix/site-content/1.0.3-docs/tutorial_customized_view.html
helix/site-content/1.0.3-docs/tutorial_distributed_lock.html
helix/site-content/1.0.3-docs/tutorial_health.html
helix/site-content/1.0.3-docs/tutorial_messaging.html
helix/site-content/1.0.3-docs/tutorial_participant.html
helix/site-content/1.0.3-docs/tutorial_propstore.html
helix/site-content/1.0.3-docs/tutorial_rebalance.html
helix/site-content/1.0.3-docs/tutorial_rest_service.html
helix/site-content/1.0.3-docs/tutorial_spectator.html
helix/site-content/1.0.3-docs/tutorial_state.html
helix/site-content/1.0.3-docs/tutorial_task_framework.html
helix/site-content/1.0.3-docs/tutorial_task_throttling.html
helix/site-content/1.0.3-docs/tutorial_throttling.html
helix/site-content/1.0.3-docs/tutorial_ui.html
helix/site-content/1.0.3-docs/tutorial_user_content_store.html
helix/site-content/1.0.3-docs/tutorial_user_def_rebalancer.html
helix/site-content/1.0.3-docs/tutorial_yaml.html
helix/site-content/Architecture.html
helix/site-content/ClientLibraries.html
helix/site-content/Concepts.html
helix/site-content/IRC.html
helix/site-content/Publications.html
helix/site-content/UseCases.html
helix/site-content/design/crush-ed.html
helix/site-content/download.html
helix/site-content/index.html
helix/site-content/involved/building.html
helix/site-content/involved/contribdocs.html
helix/site-content/privacy-policy.html
helix/site-content/releasing.html
helix/site-content/sources.html
Modified: helix/site-content/0.9.9-docs/Building.html
URL:
http://svn.apache.org/viewvc/helix/site-content/0.9.9-docs/Building.html?rev=1900255&r1=1900254&r2=1900255&view=diff
==============================================================================
--- helix/site-content/0.9.9-docs/Building.html (original)
+++ helix/site-content/0.9.9-docs/Building.html Mon Apr 25 08:18:23 2022
@@ -1,7 +1,13 @@
<!DOCTYPE html>
+
+
+
+
+
+
<!--
- Generated by Apache Maven Doxia at 2022-04-23 Rendered using Reflow Maven
Skin 2.0.0-SNAPSHOT (https://andriusvelykis.github.io/reflow-maven-skin)
+ Generated by Apache Maven Doxia at 2022-04-25 Rendered using Reflow Maven
Skin 2.0.0 (https://olamy.github.io/reflow-maven-skin)
-->
<html xml:lang="en" lang="en">
@@ -29,24 +35,31 @@
<![endif]-->
- <script type="text/javascript">
-
- var _gaq = _gaq || [];
- _gaq.push(['_setAccount', 'UA-3211522-12']);
- _gaq.push(['_trackPageview']);
- (function() {
- var ga = document.createElement('script'); ga.type =
'text/javascript'; ga.async = true;
- ga.src = ('https:' == document.location.protocol ? 'https://ssl' :
'http://www') + '.google-analytics.com/ga.js';
- var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(ga, s);
- })();
- </script>
- </head>
+
+<!-- Matomo -->
+<script>
+ var _paq = window._paq = window._paq || [];
+ _paq.push(['disableCookies']);
+ _paq.push(['trackPageView']);
+ _paq.push(['enableLinkTracking']);
+
+ (function() {
+ var u="https://analytics.apache.org";;
+ _paq.push(['setTrackerUrl', u+'/matomo.php']);
+ _paq.push(['setSiteId', '15']);
+ var d=document, g=d.createElement('script'),
s=d.getElementsByTagName('script')[0];
+ g.async=true; g.src=u+'/matomo.js'; s.parentNode.insertBefore(g,s);
+ })();
+</script>
+<!-- End Matomo Code -->
+ </head>
<body class="page-building project-099-docs" data-spy="scroll"
data-offset="60" data-target="#toc-scroll-target">
+
<div class="navbar navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
@@ -119,7 +132,7 @@
<li><a href="./" title="Release 0.9.9">Release
0.9.9</a></li>
<li class="divider">/</li>
<li>Build Instructions</li>
- <li class="publishDate version-date
pull-right">Last Published: 2022-04-23</li>
+ <li class="publishDate version-date
pull-right">Last Published: 2022-04-25</li>
</ul>
</div>
</header>
@@ -242,7 +255,7 @@ mvn install package -DskipTests
<div class="span12">
<p class="pull-right"><a href="#">Back to
top</a></p>
<p class="copyright">Copyright ©2022 <a
href="https://www.apache.org/";>The Apache Software Foundation</a>. All Rights
Reserved.</p>
- <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> by <a href="https://andrius.velykis.lt";
target="_blank" title="Andrius Velykis">Andrius Velykis</a>.</p>
+ <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> maintained by <a href="https://twitter.com/olamy";
target="_blank" title="Olivier Lamy">Olivier Lamy</a>.</p>
<div class="row span16"><div>Apache Helix, Apache, the Apache
feather logo, and the Apache Helix project logos are trademarks of The Apache
Software Foundation.
All other marks mentioned may be trademarks or registered trademarks
of their respective owners.</div>
<a
href="https://helix.apache.org/0.9.9-docs/privacy-policy.html";>Privacy
Policy</a>
Modified: helix/site-content/0.9.9-docs/Features.html
URL:
http://svn.apache.org/viewvc/helix/site-content/0.9.9-docs/Features.html?rev=1900255&r1=1900254&r2=1900255&view=diff
==============================================================================
--- helix/site-content/0.9.9-docs/Features.html (original)
+++ helix/site-content/0.9.9-docs/Features.html Mon Apr 25 08:18:23 2022
@@ -1,7 +1,13 @@
<!DOCTYPE html>
+
+
+
+
+
+
<!--
- Generated by Apache Maven Doxia at 2022-04-23 Rendered using Reflow Maven
Skin 2.0.0-SNAPSHOT (https://andriusvelykis.github.io/reflow-maven-skin)
+ Generated by Apache Maven Doxia at 2022-04-25 Rendered using Reflow Maven
Skin 2.0.0 (https://olamy.github.io/reflow-maven-skin)
-->
<html xml:lang="en" lang="en">
@@ -29,24 +35,31 @@
<![endif]-->
- <script type="text/javascript">
-
- var _gaq = _gaq || [];
- _gaq.push(['_setAccount', 'UA-3211522-12']);
- _gaq.push(['_trackPageview']);
- (function() {
- var ga = document.createElement('script'); ga.type =
'text/javascript'; ga.async = true;
- ga.src = ('https:' == document.location.protocol ? 'https://ssl' :
'http://www') + '.google-analytics.com/ga.js';
- var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(ga, s);
- })();
- </script>
- </head>
+
+<!-- Matomo -->
+<script>
+ var _paq = window._paq = window._paq || [];
+ _paq.push(['disableCookies']);
+ _paq.push(['trackPageView']);
+ _paq.push(['enableLinkTracking']);
+
+ (function() {
+ var u="https://analytics.apache.org";;
+ _paq.push(['setTrackerUrl', u+'/matomo.php']);
+ _paq.push(['setSiteId', '15']);
+ var d=document, g=d.createElement('script'),
s=d.getElementsByTagName('script')[0];
+ g.async=true; g.src=u+'/matomo.js'; s.parentNode.insertBefore(g,s);
+ })();
+</script>
+<!-- End Matomo Code -->
+ </head>
<body class="page-features project-099-docs" data-spy="scroll"
data-offset="60" data-target="#toc-scroll-target">
+
<div class="navbar navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
@@ -119,7 +132,7 @@
<li><a href="./" title="Release 0.9.9">Release
0.9.9</a></li>
<li class="divider">/</li>
<li>Features</li>
- <li class="publishDate version-date
pull-right">Last Published: 2022-04-23</li>
+ <li class="publishDate version-date
pull-right">Last Published: 2022-04-25</li>
</ul>
</div>
</header>
@@ -180,19 +193,19 @@ under the License.
<p>When the idealstate mode is set to AUTO_REBALANCE, Helix controls both
the location of the replica along with the state. This option is useful for
applications where creation of a replica is not expensive. Example</p>
<div class="source">
<pre><code>{
- "id" : "MyResource",
- "simpleFields" : {
- "IDEAL_STATE_MODE" : "AUTO_REBALANCE",
- "NUM_PARTITIONS" : "3",
- "REPLICAS" : "2",
- "STATE_MODEL_DEF_REF" : "MasterSlave",
+ "id" : "MyResource",
+ "simpleFields" : {
+ "IDEAL_STATE_MODE" : "AUTO_REBALANCE",
+ "NUM_PARTITIONS" : "3",
+ "REPLICAS" : "2",
+ "STATE_MODEL_DEF_REF" : "MasterSlave",
}
- "listFields" : {
- "MyResource_0" : [],
- "MyResource_1" : [],
- "MyResource_2" : []
+ "listFields" : {
+ "MyResource_0" : [],
+ "MyResource_1" : [],
+ "MyResource_2" : []
},
- "mapFields" : {
+ "mapFields" : {
}
}
</code></pre>
@@ -200,24 +213,24 @@ under the License.
<p>If there are 3 nodes in the cluster, then Helix will internally compute
the ideal state as</p>
<div class="source">
<pre><code>{
- "id" : "MyResource",
- "simpleFields" : {
- "NUM_PARTITIONS" : "3",
- "REPLICAS" : "2",
- "STATE_MODEL_DEF_REF" : "MasterSlave",
+ "id" : "MyResource",
+ "simpleFields" : {
+ "NUM_PARTITIONS" : "3",
+ "REPLICAS" : "2",
+ "STATE_MODEL_DEF_REF" : "MasterSlave",
},
- "mapFields" : {
- "MyResource_0" : {
- "N1" : "MASTER",
- "N2" : "SLAVE",
+ "mapFields" : {
+ "MyResource_0" : {
+ "N1" : "MASTER",
+ "N2" : "SLAVE",
},
- "MyResource_1" : {
- "N2" : "MASTER",
- "N3" : "SLAVE",
+ "MyResource_1" : {
+ "N2" : "MASTER",
+ "N3" : "SLAVE",
},
- "MyResource_2" : {
- "N3" : "MASTER",
- "N1" : "SLAVE",
+ "MyResource_2" : {
+ "N3" : "MASTER",
+ "N1" : "SLAVE",
}
}
}
@@ -231,19 +244,19 @@ under the License.
<p>When the idealstate mode is set to AUTO, Helix only controls STATE of
the replicas where as the location of the partition is controlled by
application. Example: The below idealstate indicates thats âMyResource_0â
must be only on node1 and node2. But gives the control of assigning the STATE
to Helix.</p>
<div class="source">
<pre><code>{
- "id" : "MyResource",
- "simpleFields" : {
- "IDEAL_STATE_MODE" : "AUTO",
- "NUM_PARTITIONS" : "3",
- "REPLICAS" : "2",
- "STATE_MODEL_DEF_REF" : "MasterSlave",
+ "id" : "MyResource",
+ "simpleFields" : {
+ "IDEAL_STATE_MODE" : "AUTO",
+ "NUM_PARTITIONS" : "3",
+ "REPLICAS" : "2",
+ "STATE_MODEL_DEF_REF" : "MasterSlave",
}
- "listFields" : {
- "MyResource_0" : [node1, node2],
- "MyResource_1" : [node2, node3],
- "MyResource_2" : [node3, node1]
+ "listFields" : {
+ "MyResource_0" : [node1, node2],
+ "MyResource_1" : [node2, node3],
+ "MyResource_2" : [node3, node1]
},
- "mapFields" : {
+ "mapFields" : {
}
}
</code></pre>
@@ -255,25 +268,25 @@ under the License.
<p>Helix offers a third mode called CUSTOM, in which application can
completely control the placement and state of each replica. Applications will
have to implement an interface that Helix will invoke when the cluster state
changes. Within this callback, the application can recompute the idealstate.
Helix will then issue appropriate transitions such that Idealstate and
Currentstate converges.</p>
<div class="source">
<pre><code>{
- "id" : "MyResource",
- "simpleFields" : {
- "IDEAL_STATE_MODE" : "CUSTOM",
- "NUM_PARTITIONS" : "3",
- "REPLICAS" : "2",
- "STATE_MODEL_DEF_REF" : "MasterSlave",
+ "id" : "MyResource",
+ "simpleFields" : {
+ "IDEAL_STATE_MODE" : "CUSTOM",
+ "NUM_PARTITIONS" : "3",
+ "REPLICAS" : "2",
+ "STATE_MODEL_DEF_REF" : "MasterSlave",
},
- "mapFields" : {
- "MyResource_0" : {
- "N1" : "MASTER",
- "N2" : "SLAVE",
+ "mapFields" : {
+ "MyResource_0" : {
+ "N1" : "MASTER",
+ "N2" : "SLAVE",
},
- "MyResource_1" : {
- "N2" : "MASTER",
- "N3" : "SLAVE",
+ "MyResource_1" : {
+ "N2" : "MASTER",
+ "N3" : "SLAVE",
},
- "MyResource_2" : {
- "N3" : "MASTER",
- "N1" : "SLAVE",
+ "MyResource_2" : {
+ "N3" : "MASTER",
+ "N1" : "SLAVE",
}
}
}
@@ -322,10 +335,10 @@ under the License.
requestBackupUriRequest.setMsgState(MessageState.NEW);
//SET THE RECIPIENT CRITERIA, All nodes that satisfy the criteria will
receive the message
Criteria recipientCriteria = new Criteria();
- recipientCriteria.setInstanceName("%");
+ recipientCriteria.setInstanceName("%");
recipientCriteria.setRecipientInstanceType(InstanceType.PARTICIPANT);
- recipientCriteria.setResource("MyDB");
- recipientCriteria.setPartition("");
+ recipientCriteria.setResource("MyDB");
+ recipientCriteria.setPartition("");
//Should be processed only the process that is active at the time of
sending the message.
//This means if the recipient is restarted after message is sent, it
will not be processed.
recipientCriteria.setSessionSpecific(true);
@@ -450,7 +463,7 @@ under the License.
<div class="span12">
<p class="pull-right"><a href="#">Back to
top</a></p>
<p class="copyright">Copyright ©2022 <a
href="https://www.apache.org/";>The Apache Software Foundation</a>. All Rights
Reserved.</p>
- <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> by <a href="https://andrius.velykis.lt";
target="_blank" title="Andrius Velykis">Andrius Velykis</a>.</p>
+ <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> maintained by <a href="https://twitter.com/olamy";
target="_blank" title="Olivier Lamy">Olivier Lamy</a>.</p>
<div class="row span16"><div>Apache Helix, Apache, the Apache
feather logo, and the Apache Helix project logos are trademarks of The Apache
Software Foundation.
All other marks mentioned may be trademarks or registered trademarks
of their respective owners.</div>
<a
href="https://helix.apache.org/0.9.9-docs/privacy-policy.html";>Privacy
Policy</a>
Modified: helix/site-content/0.9.9-docs/Metrics.html
URL:
http://svn.apache.org/viewvc/helix/site-content/0.9.9-docs/Metrics.html?rev=1900255&r1=1900254&r2=1900255&view=diff
==============================================================================
--- helix/site-content/0.9.9-docs/Metrics.html (original)
+++ helix/site-content/0.9.9-docs/Metrics.html Mon Apr 25 08:18:23 2022
@@ -1,7 +1,13 @@
<!DOCTYPE html>
+
+
+
+
+
+
<!--
- Generated by Apache Maven Doxia at 2022-04-23 Rendered using Reflow Maven
Skin 2.0.0-SNAPSHOT (https://andriusvelykis.github.io/reflow-maven-skin)
+ Generated by Apache Maven Doxia at 2022-04-25 Rendered using Reflow Maven
Skin 2.0.0 (https://olamy.github.io/reflow-maven-skin)
-->
<html xml:lang="en" lang="en">
@@ -29,24 +35,31 @@
<![endif]-->
- <script type="text/javascript">
-
- var _gaq = _gaq || [];
- _gaq.push(['_setAccount', 'UA-3211522-12']);
- _gaq.push(['_trackPageview']);
- (function() {
- var ga = document.createElement('script'); ga.type =
'text/javascript'; ga.async = true;
- ga.src = ('https:' == document.location.protocol ? 'https://ssl' :
'http://www') + '.google-analytics.com/ga.js';
- var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(ga, s);
- })();
- </script>
- </head>
+
+<!-- Matomo -->
+<script>
+ var _paq = window._paq = window._paq || [];
+ _paq.push(['disableCookies']);
+ _paq.push(['trackPageView']);
+ _paq.push(['enableLinkTracking']);
+
+ (function() {
+ var u="https://analytics.apache.org";;
+ _paq.push(['setTrackerUrl', u+'/matomo.php']);
+ _paq.push(['setSiteId', '15']);
+ var d=document, g=d.createElement('script'),
s=d.getElementsByTagName('script')[0];
+ g.async=true; g.src=u+'/matomo.js'; s.parentNode.insertBefore(g,s);
+ })();
+</script>
+<!-- End Matomo Code -->
+ </head>
<body class="page-metrics project-099-docs" data-spy="scroll"
data-offset="60" data-target="#toc-scroll-target">
+
<div class="navbar navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
@@ -119,7 +132,7 @@
<li><a href="./" title="Release 0.9.9">Release
0.9.9</a></li>
<li class="divider">/</li>
<li>Helix Monitoring Metrics</li>
- <li class="publishDate version-date
pull-right">Last Published: 2022-04-23</li>
+ <li class="publishDate version-date
pull-right">Last Published: 2022-04-25</li>
</ul>
</div>
</header>
@@ -820,7 +833,7 @@ under the License.
<div class="span12">
<p class="pull-right"><a href="#">Back to
top</a></p>
<p class="copyright">Copyright ©2022 <a
href="https://www.apache.org/";>The Apache Software Foundation</a>. All Rights
Reserved.</p>
- <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> by <a href="https://andrius.velykis.lt";
target="_blank" title="Andrius Velykis">Andrius Velykis</a>.</p>
+ <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> maintained by <a href="https://twitter.com/olamy";
target="_blank" title="Olivier Lamy">Olivier Lamy</a>.</p>
<div class="row span16"><div>Apache Helix, Apache, the Apache
feather logo, and the Apache Helix project logos are trademarks of The Apache
Software Foundation.
All other marks mentioned may be trademarks or registered trademarks
of their respective owners.</div>
<a
href="https://helix.apache.org/0.9.9-docs/privacy-policy.html";>Privacy
Policy</a>
Modified: helix/site-content/0.9.9-docs/Quickstart.html
URL:
http://svn.apache.org/viewvc/helix/site-content/0.9.9-docs/Quickstart.html?rev=1900255&r1=1900254&r2=1900255&view=diff
==============================================================================
--- helix/site-content/0.9.9-docs/Quickstart.html (original)
+++ helix/site-content/0.9.9-docs/Quickstart.html Mon Apr 25 08:18:23 2022
@@ -1,7 +1,13 @@
<!DOCTYPE html>
+
+
+
+
+
+
<!--
- Generated by Apache Maven Doxia at 2022-04-23 Rendered using Reflow Maven
Skin 2.0.0-SNAPSHOT (https://andriusvelykis.github.io/reflow-maven-skin)
+ Generated by Apache Maven Doxia at 2022-04-25 Rendered using Reflow Maven
Skin 2.0.0 (https://olamy.github.io/reflow-maven-skin)
-->
<html xml:lang="en" lang="en">
@@ -29,24 +35,31 @@
<![endif]-->
- <script type="text/javascript">
-
- var _gaq = _gaq || [];
- _gaq.push(['_setAccount', 'UA-3211522-12']);
- _gaq.push(['_trackPageview']);
- (function() {
- var ga = document.createElement('script'); ga.type =
'text/javascript'; ga.async = true;
- ga.src = ('https:' == document.location.protocol ? 'https://ssl' :
'http://www') + '.google-analytics.com/ga.js';
- var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(ga, s);
- })();
- </script>
- </head>
+
+<!-- Matomo -->
+<script>
+ var _paq = window._paq = window._paq || [];
+ _paq.push(['disableCookies']);
+ _paq.push(['trackPageView']);
+ _paq.push(['enableLinkTracking']);
+
+ (function() {
+ var u="https://analytics.apache.org";;
+ _paq.push(['setTrackerUrl', u+'/matomo.php']);
+ _paq.push(['setSiteId', '15']);
+ var d=document, g=d.createElement('script'),
s=d.getElementsByTagName('script')[0];
+ g.async=true; g.src=u+'/matomo.js'; s.parentNode.insertBefore(g,s);
+ })();
+</script>
+<!-- End Matomo Code -->
+ </head>
<body class="page-quickstart project-099-docs" data-spy="scroll"
data-offset="60" data-target="#toc-scroll-target">
+
<div class="navbar navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
@@ -119,7 +132,7 @@
<li><a href="./" title="Release 0.9.9">Release
0.9.9</a></li>
<li class="divider">/</li>
<li>Quickstart</li>
- <li class="publishDate version-date
pull-right">Last Published: 2022-04-23</li>
+ <li class="publishDate version-date
pull-right">Last Published: 2022-04-25</li>
</ul>
</div>
</header>
@@ -399,15 +412,15 @@ localhost_12913
./helix-admin.sh --zkSvr localhost:2199 --listInstanceInfo MYCLUSTER
localhost_12913
InstanceConfig: {
- "id" : "localhost_12913",
- "mapFields" : {
+ "id" : "localhost_12913",
+ "mapFields" : {
},
- "listFields" : {
+ "listFields" : {
},
- "simpleFields" : {
- "HELIX_ENABLED" : "true",
- "HELIX_HOST" : "localhost",
- "HELIX_PORT" : "12913"
+ "simpleFields" : {
+ "HELIX_ENABLED" : "true",
+ "HELIX_HOST" : "localhost",
+ "HELIX_PORT" : "12913"
}
}
</code></pre>
@@ -420,96 +433,96 @@ InstanceConfig: {
IdealState for myDB:
{
- "id" : "myDB",
- "mapFields" : {
- "myDB_0" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "LEADER",
- "localhost_12915" : "STANDBY"
- },
- "myDB_1" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "STANDBY",
- "localhost_12915" : "LEADER"
- },
- "myDB_2" : {
- "localhost_12913" : "LEADER",
- "localhost_12914" : "STANDBY",
- "localhost_12915" : "STANDBY"
- },
- "myDB_3" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "STANDBY",
- "localhost_12915" : "LEADER"
- },
- "myDB_4" : {
- "localhost_12913" : "LEADER",
- "localhost_12914" : "STANDBY",
- "localhost_12915" : "STANDBY"
- },
- "myDB_5" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "LEADER",
- "localhost_12915" : "STANDBY"
+ "id" : "myDB",
+ "mapFields" : {
+ "myDB_0" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "LEADER",
+ "localhost_12915" : "STANDBY"
+ },
+ "myDB_1" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "STANDBY",
+ "localhost_12915" : "LEADER"
+ },
+ "myDB_2" : {
+ "localhost_12913" : "LEADER",
+ "localhost_12914" : "STANDBY",
+ "localhost_12915" : "STANDBY"
+ },
+ "myDB_3" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "STANDBY",
+ "localhost_12915" : "LEADER"
+ },
+ "myDB_4" : {
+ "localhost_12913" : "LEADER",
+ "localhost_12914" : "STANDBY",
+ "localhost_12915" : "STANDBY"
+ },
+ "myDB_5" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "LEADER",
+ "localhost_12915" : "STANDBY"
}
},
- "listFields" : {
- "myDB_0" : [ "localhost_12914",
"localhost_12913", "localhost_12915" ],
- "myDB_1" : [ "localhost_12915",
"localhost_12913", "localhost_12914" ],
- "myDB_2" : [ "localhost_12913",
"localhost_12915", "localhost_12914" ],
- "myDB_3" : [ "localhost_12915",
"localhost_12913", "localhost_12914" ],
- "myDB_4" : [ "localhost_12913",
"localhost_12914", "localhost_12915" ],
- "myDB_5" : [ "localhost_12914",
"localhost_12915", "localhost_12913" ]
- },
- "simpleFields" : {
- "IDEAL_STATE_MODE" : "AUTO",
- "REBALANCE_MODE" : "SEMI_AUTO",
- "NUM_PARTITIONS" : "6",
- "REPLICAS" : "3",
- "STATE_MODEL_DEF_REF" : "LeaderStandby",
- "STATE_MODEL_FACTORY_NAME" : "DEFAULT"
+ "listFields" : {
+ "myDB_0" : [ "localhost_12914", "localhost_12913", "localhost_12915" ],
+ "myDB_1" : [ "localhost_12915", "localhost_12913", "localhost_12914" ],
+ "myDB_2" : [ "localhost_12913", "localhost_12915", "localhost_12914" ],
+ "myDB_3" : [ "localhost_12915", "localhost_12913", "localhost_12914" ],
+ "myDB_4" : [ "localhost_12913", "localhost_12914", "localhost_12915" ],
+ "myDB_5" : [ "localhost_12914", "localhost_12915", "localhost_12913" ]
+ },
+ "simpleFields" : {
+ "IDEAL_STATE_MODE" : "AUTO",
+ "REBALANCE_MODE" : "SEMI_AUTO",
+ "NUM_PARTITIONS" : "6",
+ "REPLICAS" : "3",
+ "STATE_MODEL_DEF_REF" : "LeaderStandby",
+ "STATE_MODEL_FACTORY_NAME" : "DEFAULT"
}
}
ExternalView for myDB:
{
- "id" : "myDB",
- "mapFields" : {
- "myDB_0" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "LEADER",
- "localhost_12915" : "STANDBY"
- },
- "myDB_1" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "STANDBY",
- "localhost_12915" : "LEADER"
- },
- "myDB_2" : {
- "localhost_12913" : "LEADER",
- "localhost_12914" : "STANDBY",
- "localhost_12915" : "STANDBY"
- },
- "myDB_3" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "STANDBY",
- "localhost_12915" : "LEADER"
- },
- "myDB_4" : {
- "localhost_12913" : "LEADER",
- "localhost_12914" : "STANDBY",
- "localhost_12915" : "STANDBY"
- },
- "myDB_5" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "LEADER",
- "localhost_12915" : "STANDBY"
+ "id" : "myDB",
+ "mapFields" : {
+ "myDB_0" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "LEADER",
+ "localhost_12915" : "STANDBY"
+ },
+ "myDB_1" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "STANDBY",
+ "localhost_12915" : "LEADER"
+ },
+ "myDB_2" : {
+ "localhost_12913" : "LEADER",
+ "localhost_12914" : "STANDBY",
+ "localhost_12915" : "STANDBY"
+ },
+ "myDB_3" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "STANDBY",
+ "localhost_12915" : "LEADER"
+ },
+ "myDB_4" : {
+ "localhost_12913" : "LEADER",
+ "localhost_12914" : "STANDBY",
+ "localhost_12915" : "STANDBY"
+ },
+ "myDB_5" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "LEADER",
+ "localhost_12915" : "STANDBY"
}
},
- "listFields" : {
+ "listFields" : {
},
- "simpleFields" : {
- "BUCKET_SIZE" : "0"
+ "simpleFields" : {
+ "BUCKET_SIZE" : "0"
}
}
</code></pre>
@@ -553,96 +566,96 @@ ExternalView for myDB:
IdealState for myDB:
{
- "id" : "myDB",
- "mapFields" : {
- "myDB_0" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "STANDBY",
- "localhost_12917" : "LEADER"
- },
- "myDB_1" : {
- "localhost_12916" : "STANDBY",
- "localhost_12917" : "STANDBY",
- "localhost_12918" : "LEADER"
- },
- "myDB_2" : {
- "localhost_12913" : "LEADER",
- "localhost_12917" : "STANDBY",
- "localhost_12918" : "STANDBY"
- },
- "myDB_3" : {
- "localhost_12915" : "LEADER",
- "localhost_12917" : "STANDBY",
- "localhost_12918" : "STANDBY"
- },
- "myDB_4" : {
- "localhost_12916" : "LEADER",
- "localhost_12917" : "STANDBY",
- "localhost_12918" : "STANDBY"
- },
- "myDB_5" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "LEADER",
- "localhost_12915" : "STANDBY"
+ "id" : "myDB",
+ "mapFields" : {
+ "myDB_0" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "STANDBY",
+ "localhost_12917" : "LEADER"
+ },
+ "myDB_1" : {
+ "localhost_12916" : "STANDBY",
+ "localhost_12917" : "STANDBY",
+ "localhost_12918" : "LEADER"
+ },
+ "myDB_2" : {
+ "localhost_12913" : "LEADER",
+ "localhost_12917" : "STANDBY",
+ "localhost_12918" : "STANDBY"
+ },
+ "myDB_3" : {
+ "localhost_12915" : "LEADER",
+ "localhost_12917" : "STANDBY",
+ "localhost_12918" : "STANDBY"
+ },
+ "myDB_4" : {
+ "localhost_12916" : "LEADER",
+ "localhost_12917" : "STANDBY",
+ "localhost_12918" : "STANDBY"
+ },
+ "myDB_5" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "LEADER",
+ "localhost_12915" : "STANDBY"
}
},
- "listFields" : {
- "myDB_0" : [ "localhost_12917",
"localhost_12913", "localhost_12914" ],
- "myDB_1" : [ "localhost_12918",
"localhost_12917", "localhost_12916" ],
- "myDB_2" : [ "localhost_12913",
"localhost_12917", "localhost_12918" ],
- "myDB_3" : [ "localhost_12915",
"localhost_12917", "localhost_12918" ],
- "myDB_4" : [ "localhost_12916",
"localhost_12917", "localhost_12918" ],
- "myDB_5" : [ "localhost_12914",
"localhost_12915", "localhost_12913" ]
- },
- "simpleFields" : {
- "IDEAL_STATE_MODE" : "AUTO",
- "REBALANCE_MODE" : "SEMI_AUTO",
- "NUM_PARTITIONS" : "6",
- "REPLICAS" : "3",
- "STATE_MODEL_DEF_REF" : "LeaderStandby",
- "STATE_MODEL_FACTORY_NAME" : "DEFAULT"
+ "listFields" : {
+ "myDB_0" : [ "localhost_12917", "localhost_12913", "localhost_12914" ],
+ "myDB_1" : [ "localhost_12918", "localhost_12917", "localhost_12916" ],
+ "myDB_2" : [ "localhost_12913", "localhost_12917", "localhost_12918" ],
+ "myDB_3" : [ "localhost_12915", "localhost_12917", "localhost_12918" ],
+ "myDB_4" : [ "localhost_12916", "localhost_12917", "localhost_12918" ],
+ "myDB_5" : [ "localhost_12914", "localhost_12915", "localhost_12913" ]
+ },
+ "simpleFields" : {
+ "IDEAL_STATE_MODE" : "AUTO",
+ "REBALANCE_MODE" : "SEMI_AUTO",
+ "NUM_PARTITIONS" : "6",
+ "REPLICAS" : "3",
+ "STATE_MODEL_DEF_REF" : "LeaderStandby",
+ "STATE_MODEL_FACTORY_NAME" : "DEFAULT"
}
}
ExternalView for myDB:
{
- "id" : "myDB",
- "mapFields" : {
- "myDB_0" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "STANDBY",
- "localhost_12917" : "LEADER"
- },
- "myDB_1" : {
- "localhost_12916" : "STANDBY",
- "localhost_12917" : "STANDBY",
- "localhost_12918" : "LEADER"
- },
- "myDB_2" : {
- "localhost_12913" : "LEADER",
- "localhost_12917" : "STANDBY",
- "localhost_12918" : "STANDBY"
- },
- "myDB_3" : {
- "localhost_12915" : "LEADER",
- "localhost_12917" : "STANDBY",
- "localhost_12918" : "STANDBY"
- },
- "myDB_4" : {
- "localhost_12916" : "LEADER",
- "localhost_12917" : "STANDBY",
- "localhost_12918" : "STANDBY"
- },
- "myDB_5" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "LEADER",
- "localhost_12915" : "STANDBY"
+ "id" : "myDB",
+ "mapFields" : {
+ "myDB_0" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "STANDBY",
+ "localhost_12917" : "LEADER"
+ },
+ "myDB_1" : {
+ "localhost_12916" : "STANDBY",
+ "localhost_12917" : "STANDBY",
+ "localhost_12918" : "LEADER"
+ },
+ "myDB_2" : {
+ "localhost_12913" : "LEADER",
+ "localhost_12917" : "STANDBY",
+ "localhost_12918" : "STANDBY"
+ },
+ "myDB_3" : {
+ "localhost_12915" : "LEADER",
+ "localhost_12917" : "STANDBY",
+ "localhost_12918" : "STANDBY"
+ },
+ "myDB_4" : {
+ "localhost_12916" : "LEADER",
+ "localhost_12917" : "STANDBY",
+ "localhost_12918" : "STANDBY"
+ },
+ "myDB_5" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "LEADER",
+ "localhost_12915" : "STANDBY"
}
},
- "listFields" : {
+ "listFields" : {
},
- "simpleFields" : {
- "BUCKET_SIZE" : "0"
+ "simpleFields" : {
+ "BUCKET_SIZE" : "0"
}
}
</code></pre>
@@ -659,92 +672,92 @@ ExternalView for myDB:
IdealState for myDB:
{
- "id" : "myDB",
- "mapFields" : {
- "myDB_0" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "STANDBY",
- "localhost_12917" : "LEADER"
- },
- "myDB_1" : {
- "localhost_12916" : "STANDBY",
- "localhost_12917" : "STANDBY",
- "localhost_12918" : "LEADER"
- },
- "myDB_2" : {
- "localhost_12913" : "LEADER",
- "localhost_12917" : "STANDBY",
- "localhost_12918" : "STANDBY"
- },
- "myDB_3" : {
- "localhost_12915" : "LEADER",
- "localhost_12917" : "STANDBY",
- "localhost_12918" : "STANDBY"
- },
- "myDB_4" : {
- "localhost_12916" : "LEADER",
- "localhost_12917" : "STANDBY",
- "localhost_12918" : "STANDBY"
- },
- "myDB_5" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "LEADER",
- "localhost_12915" : "STANDBY"
+ "id" : "myDB",
+ "mapFields" : {
+ "myDB_0" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "STANDBY",
+ "localhost_12917" : "LEADER"
+ },
+ "myDB_1" : {
+ "localhost_12916" : "STANDBY",
+ "localhost_12917" : "STANDBY",
+ "localhost_12918" : "LEADER"
+ },
+ "myDB_2" : {
+ "localhost_12913" : "LEADER",
+ "localhost_12917" : "STANDBY",
+ "localhost_12918" : "STANDBY"
+ },
+ "myDB_3" : {
+ "localhost_12915" : "LEADER",
+ "localhost_12917" : "STANDBY",
+ "localhost_12918" : "STANDBY"
+ },
+ "myDB_4" : {
+ "localhost_12916" : "LEADER",
+ "localhost_12917" : "STANDBY",
+ "localhost_12918" : "STANDBY"
+ },
+ "myDB_5" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "LEADER",
+ "localhost_12915" : "STANDBY"
}
},
- "listFields" : {
- "myDB_0" : [ "localhost_12917",
"localhost_12913", "localhost_12914" ],
- "myDB_1" : [ "localhost_12918",
"localhost_12917", "localhost_12916" ],
- "myDB_2" : [ "localhost_12913",
"localhost_12918", "localhost_12917" ],
- "myDB_3" : [ "localhost_12915",
"localhost_12918", "localhost_12917" ],
- "myDB_4" : [ "localhost_12916",
"localhost_12917", "localhost_12918" ],
- "myDB_5" : [ "localhost_12914",
"localhost_12915", "localhost_12913" ]
- },
- "simpleFields" : {
- "IDEAL_STATE_MODE" : "AUTO",
- "REBALANCE_MODE" : "SEMI_AUTO",
- "NUM_PARTITIONS" : "6",
- "REPLICAS" : "3",
- "STATE_MODEL_DEF_REF" : "LeaderStandby",
- "STATE_MODEL_FACTORY_NAME" : "DEFAULT"
+ "listFields" : {
+ "myDB_0" : [ "localhost_12917", "localhost_12913", "localhost_12914" ],
+ "myDB_1" : [ "localhost_12918", "localhost_12917", "localhost_12916" ],
+ "myDB_2" : [ "localhost_12913", "localhost_12918", "localhost_12917" ],
+ "myDB_3" : [ "localhost_12915", "localhost_12918", "localhost_12917" ],
+ "myDB_4" : [ "localhost_12916", "localhost_12917", "localhost_12918" ],
+ "myDB_5" : [ "localhost_12914", "localhost_12915", "localhost_12913" ]
+ },
+ "simpleFields" : {
+ "IDEAL_STATE_MODE" : "AUTO",
+ "REBALANCE_MODE" : "SEMI_AUTO",
+ "NUM_PARTITIONS" : "6",
+ "REPLICAS" : "3",
+ "STATE_MODEL_DEF_REF" : "LeaderStandby",
+ "STATE_MODEL_FACTORY_NAME" : "DEFAULT"
}
}
ExternalView for myDB:
{
- "id" : "myDB",
- "mapFields" : {
- "myDB_0" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "STANDBY",
- "localhost_12917" : "LEADER"
- },
- "myDB_1" : {
- "localhost_12916" : "STANDBY",
- "localhost_12917" : "LEADER"
- },
- "myDB_2" : {
- "localhost_12913" : "LEADER",
- "localhost_12917" : "STANDBY"
- },
- "myDB_3" : {
- "localhost_12915" : "LEADER",
- "localhost_12917" : "STANDBY"
- },
- "myDB_4" : {
- "localhost_12916" : "LEADER",
- "localhost_12917" : "STANDBY"
- },
- "myDB_5" : {
- "localhost_12913" : "STANDBY",
- "localhost_12914" : "LEADER",
- "localhost_12915" : "STANDBY"
+ "id" : "myDB",
+ "mapFields" : {
+ "myDB_0" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "STANDBY",
+ "localhost_12917" : "LEADER"
+ },
+ "myDB_1" : {
+ "localhost_12916" : "STANDBY",
+ "localhost_12917" : "LEADER"
+ },
+ "myDB_2" : {
+ "localhost_12913" : "LEADER",
+ "localhost_12917" : "STANDBY"
+ },
+ "myDB_3" : {
+ "localhost_12915" : "LEADER",
+ "localhost_12917" : "STANDBY"
+ },
+ "myDB_4" : {
+ "localhost_12916" : "LEADER",
+ "localhost_12917" : "STANDBY"
+ },
+ "myDB_5" : {
+ "localhost_12913" : "STANDBY",
+ "localhost_12914" : "LEADER",
+ "localhost_12915" : "STANDBY"
}
},
- "listFields" : {
+ "listFields" : {
},
- "simpleFields" : {
- "BUCKET_SIZE" : "0"
+ "simpleFields" : {
+ "BUCKET_SIZE" : "0"
}
}
</code></pre>
@@ -834,7 +847,7 @@ ExternalView for myDB:
<div class="span12">
<p class="pull-right"><a href="#">Back to
top</a></p>
<p class="copyright">Copyright ©2022 <a
href="https://www.apache.org/";>The Apache Software Foundation</a>. All Rights
Reserved.</p>
- <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> by <a href="https://andrius.velykis.lt";
target="_blank" title="Andrius Velykis">Andrius Velykis</a>.</p>
+ <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> maintained by <a href="https://twitter.com/olamy";
target="_blank" title="Olivier Lamy">Olivier Lamy</a>.</p>
<div class="row span16"><div>Apache Helix, Apache, the Apache
feather logo, and the Apache Helix project logos are trademarks of The Apache
Software Foundation.
All other marks mentioned may be trademarks or registered trademarks
of their respective owners.</div>
<a
href="https://helix.apache.org/0.9.9-docs/privacy-policy.html";>Privacy
Policy</a>
Modified: helix/site-content/0.9.9-docs/Tutorial.html
URL:
http://svn.apache.org/viewvc/helix/site-content/0.9.9-docs/Tutorial.html?rev=1900255&r1=1900254&r2=1900255&view=diff
==============================================================================
--- helix/site-content/0.9.9-docs/Tutorial.html (original)
+++ helix/site-content/0.9.9-docs/Tutorial.html Mon Apr 25 08:18:23 2022
@@ -1,7 +1,13 @@
<!DOCTYPE html>
+
+
+
+
+
+
<!--
- Generated by Apache Maven Doxia at 2022-04-23 Rendered using Reflow Maven
Skin 2.0.0-SNAPSHOT (https://andriusvelykis.github.io/reflow-maven-skin)
+ Generated by Apache Maven Doxia at 2022-04-25 Rendered using Reflow Maven
Skin 2.0.0 (https://olamy.github.io/reflow-maven-skin)
-->
<html xml:lang="en" lang="en">
@@ -29,24 +35,31 @@
<![endif]-->
- <script type="text/javascript">
-
- var _gaq = _gaq || [];
- _gaq.push(['_setAccount', 'UA-3211522-12']);
- _gaq.push(['_trackPageview']);
- (function() {
- var ga = document.createElement('script'); ga.type =
'text/javascript'; ga.async = true;
- ga.src = ('https:' == document.location.protocol ? 'https://ssl' :
'http://www') + '.google-analytics.com/ga.js';
- var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(ga, s);
- })();
- </script>
- </head>
+
+<!-- Matomo -->
+<script>
+ var _paq = window._paq = window._paq || [];
+ _paq.push(['disableCookies']);
+ _paq.push(['trackPageView']);
+ _paq.push(['enableLinkTracking']);
+
+ (function() {
+ var u="https://analytics.apache.org";;
+ _paq.push(['setTrackerUrl', u+'/matomo.php']);
+ _paq.push(['setSiteId', '15']);
+ var d=document, g=d.createElement('script'),
s=d.getElementsByTagName('script')[0];
+ g.async=true; g.src=u+'/matomo.js'; s.parentNode.insertBefore(g,s);
+ })();
+</script>
+<!-- End Matomo Code -->
+ </head>
<body class="page-tutorial project-099-docs" data-spy="scroll"
data-offset="60" data-target="#toc-scroll-target">
+
<div class="navbar navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
@@ -119,7 +132,7 @@
<li><a href="./" title="Release 0.9.9">Release
0.9.9</a></li>
<li class="divider">/</li>
<li>Tutorial</li>
- <li class="publishDate version-date
pull-right">Last Published: 2022-04-23</li>
+ <li class="publishDate version-date
pull-right">Last Published: 2022-04-25</li>
</ul>
</div>
</header>
@@ -204,10 +217,10 @@ under the License.
<div class="source">
<pre><code>// Create setup tool instance
// Note: ZK_ADDRESS is the host:port of Zookeeper
-String ZK_ADDRESS = "localhost:2199";
+String ZK_ADDRESS = "localhost:2199";
admin = new ZKHelixAdmin(ZK_ADDRESS);
-String CLUSTER_NAME = "helix-demo";
+String CLUSTER_NAME = "helix-demo";
//Create cluster namespace in zookeeper
admin.addCluster(CLUSTER_NAME);
</code></pre>
@@ -223,19 +236,19 @@ admin.addCluster(CLUSTER_NAME);
<h4 id="Configure_the_Nodes_of_the_Cluster">Configure the Nodes of the
Cluster</h4>
<p>First we'll add new nodes to the cluster, then configure the nodes in
the cluster. Each node in the cluster must be uniquely identifiable. The most
commonly used convention is hostname:port.</p>
<div class="source">
- <pre><code>String CLUSTER_NAME = "helix-demo";
+ <pre><code>String CLUSTER_NAME = "helix-demo";
int NUM_NODES = 2;
-String hosts[] = new String[]{"localhost","localhost"};
-String ports[] = new String[]{"7000","7001"};
+String hosts[] = new String[]{"localhost","localhost"};
+String ports[] = new String[]{"7000","7001"};
for (int i = 0; i < NUM_NODES; i++)
{
- InstanceConfig instanceConfig = new InstanceConfig(hosts[i]+ "_" +
ports[i]);
+ InstanceConfig instanceConfig = new InstanceConfig(hosts[i]+ "_" + ports[i]);
instanceConfig.setHostName(hosts[i]);
instanceConfig.setPort(ports[i]);
instanceConfig.setInstanceEnabled(true);
//Add additional system specific configuration if needed. These can be
accessed during the node start up.
- instanceConfig.getRecord().setSimpleField("key",
"value");
+ instanceConfig.getRecord().setSimpleField("key", "value");
admin.addInstance(CLUSTER_NAME, instanceConfig);
}
</code></pre>
@@ -267,13 +280,13 @@ for (int i = 0; i < NUM_NODES; i++)
</ul>
<p>The following snippet shows how to declare the state model and
constraints for the LEADER-STANDBY model.</p>
<div class="source">
- <pre><code>String STATE_MODEL_NAME = "LeaderStandby";
+ <pre><code>String STATE_MODEL_NAME = "LeaderStandby";
StateModelDefinition.Builder builder = new
StateModelDefinition.Builder(STATE_MODEL_NAME);
// Define your own states: those are opaque strings to Helix
// Only the topology of the state machine (initial state, transitions,
priorities, final DROPPED state) is meaningful to Helix
-String LEADER = "LEADER";
-String STANDBY = "STANDBY";
-String OFFLINE = "OFFLINE";
+String LEADER = "LEADER";
+String STANDBY = "STANDBY";
+String OFFLINE = "OFFLINE";
// Add states and their rank to indicate priority. A lower rank corresponds to
a higher priority
builder.addState(LEADER, 1);
@@ -303,7 +316,7 @@ builder.upperBound(LEADER, 1);
// this allows a different replication factor for each resource without
// having to define a new state model
-builder.dynamicUpperBound(STANDBY, "R");
+builder.dynamicUpperBound(STANDBY, "R");
StateModelDefinition myStateModel = builder.build();
admin.addStateModelDef(CLUSTER_NAME, STATE_MODEL_NAME, myStateModel);
@@ -321,10 +334,10 @@ admin.addStateModelDef(CLUSTER_NAME, STA
</ul>
<p>For more information on the assignment modes, see the <a
href="./tutorial_rebalance.html">Rebalancing Algorithms</a> section of this
tutorial.</p>
<div class="source">
- <pre><code>String RESOURCE_NAME = "MyDB";
+ <pre><code>String RESOURCE_NAME = "MyDB";
int NUM_PARTITIONS = 6;
-STATE_MODEL_NAME = "LeaderStandby";
-String MODE = "SEMI_AUTO";
+STATE_MODEL_NAME = "LeaderStandby";
+String MODE = "SEMI_AUTO";
int NUM_REPLICAS = 2;
admin.addResource(CLUSTER_NAME, RESOURCE_NAME, NUM_PARTITIONS,
STATE_MODEL_NAME, MODE);
@@ -404,7 +417,7 @@ admin.rebalance(CLUSTER_NAME, RESOURCE_N
<div class="span12">
<p class="pull-right"><a href="#">Back to
top</a></p>
<p class="copyright">Copyright ©2022 <a
href="https://www.apache.org/";>The Apache Software Foundation</a>. All Rights
Reserved.</p>
- <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> by <a href="https://andrius.velykis.lt";
target="_blank" title="Andrius Velykis">Andrius Velykis</a>.</p>
+ <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> maintained by <a href="https://twitter.com/olamy";
target="_blank" title="Olivier Lamy">Olivier Lamy</a>.</p>
<div class="row span16"><div>Apache Helix, Apache, the Apache
feather logo, and the Apache Helix project logos are trademarks of The Apache
Software Foundation.
All other marks mentioned may be trademarks or registered trademarks
of their respective owners.</div>
<a
href="https://helix.apache.org/0.9.9-docs/privacy-policy.html";>Privacy
Policy</a>
Modified: helix/site-content/0.9.9-docs/auto_exit_maintenance.html
URL:
http://svn.apache.org/viewvc/helix/site-content/0.9.9-docs/auto_exit_maintenance.html?rev=1900255&r1=1900254&r2=1900255&view=diff
==============================================================================
--- helix/site-content/0.9.9-docs/auto_exit_maintenance.html (original)
+++ helix/site-content/0.9.9-docs/auto_exit_maintenance.html Mon Apr 25
08:18:23 2022
@@ -1,7 +1,13 @@
<!DOCTYPE html>
+
+
+
+
+
+
<!--
- Generated by Apache Maven Doxia at 2022-04-23 Rendered using Reflow Maven
Skin 2.0.0-SNAPSHOT (https://andriusvelykis.github.io/reflow-maven-skin)
+ Generated by Apache Maven Doxia at 2022-04-25 Rendered using Reflow Maven
Skin 2.0.0 (https://olamy.github.io/reflow-maven-skin)
-->
<html xml:lang="en" lang="en">
@@ -29,24 +35,31 @@
<![endif]-->
- <script type="text/javascript">
-
- var _gaq = _gaq || [];
- _gaq.push(['_setAccount', 'UA-3211522-12']);
- _gaq.push(['_trackPageview']);
- (function() {
- var ga = document.createElement('script'); ga.type =
'text/javascript'; ga.async = true;
- ga.src = ('https:' == document.location.protocol ? 'https://ssl' :
'http://www') + '.google-analytics.com/ga.js';
- var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(ga, s);
- })();
- </script>
- </head>
+
+<!-- Matomo -->
+<script>
+ var _paq = window._paq = window._paq || [];
+ _paq.push(['disableCookies']);
+ _paq.push(['trackPageView']);
+ _paq.push(['enableLinkTracking']);
+
+ (function() {
+ var u="https://analytics.apache.org";;
+ _paq.push(['setTrackerUrl', u+'/matomo.php']);
+ _paq.push(['setSiteId', '15']);
+ var d=document, g=d.createElement('script'),
s=d.getElementsByTagName('script')[0];
+ g.async=true; g.src=u+'/matomo.js'; s.parentNode.insertBefore(g,s);
+ })();
+</script>
+<!-- End Matomo Code -->
+ </head>
<body class="page-auto_exit_maintenance project-099-docs"
data-spy="scroll" data-offset="60" data-target="#toc-scroll-target">
+
<div class="navbar navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
@@ -119,7 +132,7 @@
<li><a href="./" title="Release 0.9.9">Release
0.9.9</a></li>
<li class="divider">/</li>
<li>Auto-exit of Maintenance Mode</li>
- <li class="publishDate version-date
pull-right">Last Published: 2022-04-23</li>
+ <li class="publishDate version-date
pull-right">Last Published: 2022-04-25</li>
</ul>
</div>
</header>
@@ -199,19 +212,19 @@ under the License.
<p>Currently, Helix stores the maintenance signal in
/{CLUSTER_NAME}/CONTROLLER/MAINTENANCE. A sample maintenance signal ZNode will
look like the following:</p>
<div class="source">
<pre><code class="language-json">{
- "id" : "maintenance",
- "simpleFields" : {
- "REASON" : "Offline Instances count 5 greater than allowed
count 4. Stop rebalance and put the cluster
CLUSTER_TestClusterInMaintenanceModeWhenReachingOfflineInstancesLimit into
maintenance mode.",
- "TRIGGERED_BY" : "CONTROLLER",
- "TIMESTAMP" : "12312838831***",
+ "id" : "maintenance",
+ "simpleFields" : {
+ "REASON" : "Offline Instances count 5 greater than allowed count 4. Stop
rebalance and put the cluster
CLUSTER_TestClusterInMaintenanceModeWhenReachingOfflineInstancesLimit into
maintenance mode.",
+ "TRIGGERED_BY" : "CONTROLLER",
+ "TIMESTAMP" : "12312838831***",
// The following are sample user-defined fields from the REST call payload
//
- "id" : "hulee",
- "jira" : "HELIX-123",
- "cluster" : "testCluster"
+ "id" : "hulee",
+ "jira" : "HELIX-123",
+ "cluster" : "testCluster"
},
- "listFields" : {
+ "listFields" : {
},
- "mapFields" : {
+ "mapFields" : {
}
}
</code></pre>
@@ -229,8 +242,8 @@ under the License.
<p>Currently, Helix maintains the controller history in the
/{clusterName}/CONTROLLER/HISTORY ZNode. We plan to add a history for
maintenance mode. This way, users will be able to access the history in
ZooKeeper directly, or utilize the REST endpoint for viewing. The format will
be in a human-readable format like the following (this is how Helix maintains
the Controller leader history):</p>
<div class="source">
<pre><code class="language-java">long currentTime =
System.currentTimeMillis();
-DateFormat df = new SimpleDateFormat("yyyy-MM-dd-HH:mm:ss");
-df.setTimeZone(TimeZone.getTimeZone("UTC"));
+DateFormat df = new SimpleDateFormat("yyyy-MM-dd-HH:mm:ss");
+df.setTimeZone(TimeZone.getTimeZone("UTC"));
String dateTime = df.format(new Date(currentTime));
</code></pre>
</div>
@@ -261,7 +274,7 @@ String dateTime = df.format(new Date(cur
<section>
<h3 id="Guide">Guide</h3>
<p>First, we encourage all users of this feature to understand Helix's
workflow below:</p>
- <p><img src="./images/auto-exit-maintenance.jpg" alt="Intro" /></p>
+ <p><img src="./images/auto-exit-maintenance.jpg" alt="Intro"></p>
<p>In order to use this feature, you'd need to set the following config
parameters in your cluster's ClusterConfig.</p>
<section>
<h4 id="Auto-enter_maintenance_mode">Auto-enter maintenance mode</h4>
@@ -363,7 +376,7 @@ String dateTime = df.format(new Date(cur
<div class="span12">
<p class="pull-right"><a href="#">Back to
top</a></p>
<p class="copyright">Copyright ©2022 <a
href="https://www.apache.org/";>The Apache Software Foundation</a>. All Rights
Reserved.</p>
- <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> by <a href="https://andrius.velykis.lt";
target="_blank" title="Andrius Velykis">Andrius Velykis</a>.</p>
+ <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> maintained by <a href="https://twitter.com/olamy";
target="_blank" title="Olivier Lamy">Olivier Lamy</a>.</p>
<div class="row span16"><div>Apache Helix, Apache, the Apache
feather logo, and the Apache Helix project logos are trademarks of The Apache
Software Foundation.
All other marks mentioned may be trademarks or registered trademarks
of their respective owners.</div>
<a
href="https://helix.apache.org/0.9.9-docs/privacy-policy.html";>Privacy
Policy</a>
Modified: helix/site-content/0.9.9-docs/design_crushed.html
URL:
http://svn.apache.org/viewvc/helix/site-content/0.9.9-docs/design_crushed.html?rev=1900255&r1=1900254&r2=1900255&view=diff
==============================================================================
--- helix/site-content/0.9.9-docs/design_crushed.html (original)
+++ helix/site-content/0.9.9-docs/design_crushed.html Mon Apr 25 08:18:23 2022
@@ -1,7 +1,13 @@
<!DOCTYPE html>
+
+
+
+
+
+
<!--
- Generated by Apache Maven Doxia at 2022-04-23 Rendered using Reflow Maven
Skin 2.0.0-SNAPSHOT (https://andriusvelykis.github.io/reflow-maven-skin)
+ Generated by Apache Maven Doxia at 2022-04-25 Rendered using Reflow Maven
Skin 2.0.0 (https://olamy.github.io/reflow-maven-skin)
-->
<html xml:lang="en" lang="en">
@@ -29,24 +35,31 @@
<![endif]-->
- <script type="text/javascript">
-
- var _gaq = _gaq || [];
- _gaq.push(['_setAccount', 'UA-3211522-12']);
- _gaq.push(['_trackPageview']);
- (function() {
- var ga = document.createElement('script'); ga.type =
'text/javascript'; ga.async = true;
- ga.src = ('https:' == document.location.protocol ? 'https://ssl' :
'http://www') + '.google-analytics.com/ga.js';
- var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(ga, s);
- })();
- </script>
- </head>
+
+<!-- Matomo -->
+<script>
+ var _paq = window._paq = window._paq || [];
+ _paq.push(['disableCookies']);
+ _paq.push(['trackPageView']);
+ _paq.push(['enableLinkTracking']);
+
+ (function() {
+ var u="https://analytics.apache.org";;
+ _paq.push(['setTrackerUrl', u+'/matomo.php']);
+ _paq.push(['setSiteId', '15']);
+ var d=document, g=d.createElement('script'),
s=d.getElementsByTagName('script')[0];
+ g.async=true; g.src=u+'/matomo.js'; s.parentNode.insertBefore(g,s);
+ })();
+</script>
+<!-- End Matomo Code -->
+ </head>
<body class="page-design_crushed project-099-docs" data-spy="scroll"
data-offset="60" data-target="#toc-scroll-target">
+
<div class="navbar navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
@@ -119,7 +132,7 @@
<li><a href="./" title="Release 0.9.9">Release
0.9.9</a></li>
<li class="divider">/</li>
<li>CrushED (Crush-based rebalancer with Even
Distribution)</li>
- <li class="publishDate version-date
pull-right">Last Published: 2022-04-23</li>
+ <li class="publishDate version-date
pull-right">Last Published: 2022-04-25</li>
</ul>
</div>
</header>
@@ -147,20 +160,20 @@
<p>CrushRebalanceStrategy has very small movement count, but the distribution
is not optimal. MultiRoundCrushRebalanceStrategy was designed to solve this
problem by running CRUSH multiple times on partition assignments that
contribute to uneven mapping. However, due to potentially high number of
rounds, computation cost is high, we observed significantly more partition
movements when the cluster topology is changed.</p>
<p>Since we have a good base strategy, CrushRebalanceStrategy, we built
CrushEDRebalanceStrategy on top of it. Sample mapping of both strategies are as
following. Note that blue parts remain unchanged before and after.</p>
<p>Before (CRUSH)</p>
- <p><img src="images/design/crushed/before-using-crush.png" alt="Before
(CRUSH)" /></p>
+ <p><img src="images/design/crushed/before-using-crush.png" alt="Before
(CRUSH)"></p>
<p>After (new strategy)</p>
- <p><img src="images/design/crushed/after-using-crushed.png" alt="After (new
strategy)" /></p>
- <p>Since the problem is NP-hard. We are not expecting the best assignment. A
greedy algorithm works good enough.<br /> After we tried different designs, we
found it's hard to achieve both goals (even distribution and fewer movements)
using a single strategy. So we decided to apply a hybrid algorithm that
finishes the work step by step.</p>
- <p><b>Step 1, run CRUSH to get a base assignment.</b><br /> The base
assignment usually contains a certain number of uneven partitions(i.e. extra
partitions above perfect distribution), so we need the following steps to
re-distribute them.</p>
- <p><b>Step 2, run a card dealing algorithm on the uneven parts.</b><br />
Assign extra partitions to under-loaded nodes, using card dealing strategy.
This algorithm is conceptually simple. The result ensures that all partitions
are assigned to instances with minimum difference. When gauranteeing fault-zone
safe assignment, our greedy algorithm may not be able to calculate possible
results because of fault-zone conflict.</p>
+ <p><img src="images/design/crushed/after-using-crushed.png" alt="After (new
strategy)"></p>
+ <p>Since the problem is NP-hard. We are not expecting the best assignment. A
greedy algorithm works good enough.<br> After we tried different designs, we
found it's hard to achieve both goals (even distribution and fewer movements)
using a single strategy. So we decided to apply a hybrid algorithm that
finishes the work step by step.</p>
+ <p><b>Step 1, run CRUSH to get a base assignment.</b><br> The base assignment
usually contains a certain number of uneven partitions(i.e. extra partitions
above perfect distribution), so we need the following steps to re-distribute
them.</p>
+ <p><b>Step 2, run a card dealing algorithm on the uneven parts.</b><br>
Assign extra partitions to under-loaded nodes, using card dealing strategy.
This algorithm is conceptually simple. The result ensures that all partitions
are assigned to instances with minimum difference. When gauranteeing fault-zone
safe assignment, our greedy algorithm may not be able to calculate possible
results because of fault-zone conflict.</p>
<p>Example of assignments after step 2,</p>
- <p><img src="images/design/crushed/example-cluster-partition-dist.png"
alt="Example" /></p>
- <p><b>Step 3, Shuffle partitions' preference lists.</b><br /> State
assignments (i.e. Master, Slave, Online, Offline, etc) are made according to
preflist, ordered node. When using randomly ordered lists, State assignment is
also random, and it may result in uneven state distribution. To resolve this
issue, CrushED assigns scores to nodes as it computes pref list, to give all
nodes equal chances in appearing at the top of the pref list. This operation
results in a much more even state distribution.</p>
+ <p><img src="images/design/crushed/example-cluster-partition-dist.png"
alt="Example"></p>
+ <p><b>Step 3, Shuffle partitions' preference lists.</b><br> State assignments
(i.e. Master, Slave, Online, Offline, etc) are made according to preflist,
ordered node. When using randomly ordered lists, State assignment is also
random, and it may result in uneven state distribution. To resolve this issue,
CrushED assigns scores to nodes as it computes pref list, to give all nodes
equal chances in appearing at the top of the pref list. This operation results
in a much more even state distribution.</p>
<p>Example of master distribution before step 3,</p>
- <p><img src="images/design/crushed/example-cluster-master-dist.png"
alt="Example" /></p>
+ <p><img src="images/design/crushed/example-cluster-master-dist.png"
alt="Example"></p>
<p>Example of master distribution after step 3,</p>
- <p><img src="images/design/crushed/example-cluster-master-dist-after.png"
alt="Example" /></p>
- <p><b>Step 4, re-calculate the assignment for the partitions on temporarily
disabled nodes using a consistent hashing algorithm.</b><br /> Consistent
hashing ensures minimize partition movement.<br /> Note that the first 3 steps
are using full node list, regardless of disabled or offline nodes. So the
assignment will be stable even the algorithm contains random factors such
hashCode. Then step 4 ensures all the disabled nodes are handled correctly
without causing huge partition movements.</p>
+ <p><img src="images/design/crushed/example-cluster-master-dist-after.png"
alt="Example"></p>
+ <p><b>Step 4, re-calculate the assignment for the partitions on temporarily
disabled nodes using a consistent hashing algorithm.</b><br> Consistent hashing
ensures minimize partition movement.<br> Note that the first 3 steps are using
full node list, regardless of disabled or offline nodes. So the assignment will
be stable even the algorithm contains random factors such hashCode. Then step 4
ensures all the disabled nodes are handled correctly without causing huge
partition movements.</p>
<p>Pseudocode of above algorithm is as follows :</p>
<p><b>Pseudo Code</b></p>
<div class="source">
@@ -207,23 +220,23 @@ if (!nodeToPartitionMap.isEmpty()) {
<li>Adding hosts to simulate expansion.</li>
<li>Rolling upgrade.</li>
</ul>
- <p>All results show that CrushED generates more uniform global distribution
compared with CRUSH.<br /> Moreover, partition movements in most scenarios are
minimized. When topology changes (i.e. cluster expansion), there can be
significantly more partition movements, but we can control the impact by using
State Transition Throttling feature.</p>
+ <p>All results show that CrushED generates more uniform global distribution
compared with CRUSH.<br> Moreover, partition movements in most scenarios are
minimized. When topology changes (i.e. cluster expansion), there can be
significantly more partition movements, but we can control the impact by using
State Transition Throttling feature.</p>
<section>
<h3 id="Partition_Distribution">Partition Distribution</h3>
- <p>Following charts demonstrate the worst cases (min load vs. max load) and
STDEVs of partition/master distributions from some sample clusters data.<br />
If we measure the improvement by STDEV, CrushED improves the partition
distribution evenness by 87% on average compared with CRUSH. And for state
assignment (i.e. Mastership assignment) the evenness improvement is 68% on
average.</p>
- <p><img src="images/design/crushed/cursh-partition-dist.png" alt="Example"
/><img src="images/design/crushed/crushed-partition-dist.png" alt="Example"
/></p>
- <p><img src="images/design/crushed/cursh-master-dist.png" alt="Example"
/><img src="images/design/crushed/crushed-master-dist.png" alt="Example" /></p>
+ <p>Following charts demonstrate the worst cases (min load vs. max load) and
STDEVs of partition/master distributions from some sample clusters data.<br> If
we measure the improvement by STDEV, CrushED improves the partition
distribution evenness by 87% on average compared with CRUSH. And for state
assignment (i.e. Mastership assignment) the evenness improvement is 68% on
average.</p>
+ <p><img src="images/design/crushed/cursh-partition-dist.png"
alt="Example"><img src="images/design/crushed/crushed-partition-dist.png"
alt="Example"></p>
+ <p><img src="images/design/crushed/cursh-master-dist.png" alt="Example"><img
src="images/design/crushed/crushed-master-dist.png" alt="Example"></p>
</section>
<section>
<h3 id="Disabling_Nodes">Disabling Nodes</h3>
- <p>When nodes are offline or disabled, CrushED will re-assign the partitions
to other live nodes. The algorithm move only the necessary partitions.<br /> We
simulated disabling nodes, and measured partition movement changes and
mastership changes. We also used the expected movement (the partitions/masters
count on the disabled nodes) as a baseline to measure extra movements.</p>
+ <p>When nodes are offline or disabled, CrushED will re-assign the partitions
to other live nodes. The algorithm move only the necessary partitions.<br> We
simulated disabling nodes, and measured partition movement changes and
mastership changes. We also used the expected movement (the partitions/masters
count on the disabled nodes) as a baseline to measure extra movements.</p>
<p>The results show that movement is highly correlated to the number of
disabled nodes, and extra movements are minor (in most cases 0 movements).</p>
<p>Note that <b>Rate</b> in this document is <b>the changed number / total
partition or master count</b>.</p>
- <p><img src="images/design/crushed/node-down-partition-move.png"
alt="Example" /><img src="images/design/crushed/node-down-master-move.png"
alt="Example" /></p>
+ <p><img src="images/design/crushed/node-down-partition-move.png"
alt="Example"><img src="images/design/crushed/node-down-master-move.png"
alt="Example"></p>
</section>
<section>
<h3 id="Rolling_upgrade">Rolling upgrade</h3>
- <p>Rolling upgrade is different from disabling nodes. Since nodes are reset
one by one, in this test we assume the difference could be 2 nodes in maximum
(for example, upgrading Node A then upgrading Node B).<br /> In this case,
movements are still minimized. Even in the worst case scenario, extra partition
movements and mastership changes are still close to 0%.</p>
+ <p>Rolling upgrade is different from disabling nodes. Since nodes are reset
one by one, in this test we assume the difference could be 2 nodes in maximum
(for example, upgrading Node A then upgrading Node B).<br> In this case,
movements are still minimized. Even in the worst case scenario, extra partition
movements and mastership changes are still close to 0%.</p>
<p>Note that in real production clusters, we can completely avoid partition
movements while doing rolling upgrade, by enabling Delayed Rebalancing.</p>
</section>
<section>
@@ -233,10 +246,10 @@ if (!nodeToPartitionMap.isEmpty()) {
</section>
<section>
<h3 id="Algorithm_Performance">Algorithm Performance</h3>
- <p>We compared CrushED with CRUSH algorithms using different instance
numbers. The tests are executed multiple times and we recorded median
computation time.<br /> CrushED does not cost much additional computation time
for regular rebalancing. In some of the worst cases, 30% more runtime was
observed, compared with CRUSH, but it is quicker than MultiRoundCRUSH.</p>
+ <p>We compared CrushED with CRUSH algorithms using different instance
numbers. The tests are executed multiple times and we recorded median
computation time.<br> CrushED does not cost much additional computation time
for regular rebalancing. In some of the worst cases, 30% more runtime was
observed, compared with CRUSH, but it is quicker than MultiRoundCRUSH.</p>
<p>However, when there are down nodes since CrushED needs to run an
additional consistent hashing based re-distribution, the computation time will
be much longer. In some cases, we saw more than 3 times compared to CRUSH.</p>
<p>With some <b>performance improvements</b>, such as using cache to avoid
duplicate calculation, we achieved to greatly reduce CrushED's running time.
According to our experiment, it is now close to MultiRound CRUSH.</p>
- <p><img src="images/design/crushed/performance.png" alt="Example" /></p>
+ <p><img src="images/design/crushed/performance.png" alt="Example"></p>
</section>
</section>
<section>
@@ -252,15 +265,15 @@ if (!nodeToPartitionMap.isEmpty()) {
</ol>
<p><b>IdeaState SimpleFields Example</b></p>
<div class="source">
- <pre><code>HELIX_ENABLED : "true"
-IDEAL\_STATE\_MODE : "AUTO_REBALANCE"
-REBALANCE\_MODE : "FULL\_AUTO"
-REBALANCE_STRATEGY :
"org.apache.helix.controller.rebalancer.strategy.CrushRebalanceStrategy"
-MIN\_ACTIVE\_REPLICAS : "0"
-NUM_PARTITIONS : "64"
-REBALANCER\_CLASS\_NAME :
"org.apache.helix.controller.rebalancer.DelayedAutoRebalancer"
-REPLICAS : "1"
-STATE\_MODEL\_DEF_REF : "LeaderStandby"
+ <pre><code>HELIX_ENABLED : "true"
+IDEAL\_STATE\_MODE : "AUTO_REBALANCE"
+REBALANCE\_MODE : "FULL\_AUTO"
+REBALANCE_STRATEGY :
"org.apache.helix.controller.rebalancer.strategy.CrushRebalanceStrategy"
+MIN\_ACTIVE\_REPLICAS : "0"
+NUM_PARTITIONS : "64"
+REBALANCER\_CLASS\_NAME :
"org.apache.helix.controller.rebalancer.DelayedAutoRebalancer"
+REPLICAS : "1"
+STATE\_MODEL\_DEF_REF : "LeaderStandby"
</code></pre>
</div>
</section>
@@ -333,7 +346,7 @@ STATE\_MODEL\_DEF_REF : "LeaderStan
<div class="span12">
<p class="pull-right"><a href="#">Back to
top</a></p>
<p class="copyright">Copyright ©2022 <a
href="https://www.apache.org/";>The Apache Software Foundation</a>. All Rights
Reserved.</p>
- <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> by <a href="https://andrius.velykis.lt";
target="_blank" title="Andrius Velykis">Andrius Velykis</a>.</p>
+ <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> maintained by <a href="https://twitter.com/olamy";
target="_blank" title="Olivier Lamy">Olivier Lamy</a>.</p>
<div class="row span16"><div>Apache Helix, Apache, the Apache
feather logo, and the Apache Helix project logos are trademarks of The Apache
Software Foundation.
All other marks mentioned may be trademarks or registered trademarks
of their respective owners.</div>
<a
href="https://helix.apache.org/0.9.9-docs/privacy-policy.html";>Privacy
Policy</a>
Modified: helix/site-content/0.9.9-docs/download.html
URL:
http://svn.apache.org/viewvc/helix/site-content/0.9.9-docs/download.html?rev=1900255&r1=1900254&r2=1900255&view=diff
==============================================================================
--- helix/site-content/0.9.9-docs/download.html (original)
+++ helix/site-content/0.9.9-docs/download.html Mon Apr 25 08:18:23 2022
@@ -1,7 +1,13 @@
<!DOCTYPE html>
+
+
+
+
+
+
<!--
- Generated by Apache Maven Doxia at 2022-04-23 Rendered using Reflow Maven
Skin 2.0.0-SNAPSHOT (https://andriusvelykis.github.io/reflow-maven-skin)
+ Generated by Apache Maven Doxia at 2022-04-25 Rendered using Reflow Maven
Skin 2.0.0 (https://olamy.github.io/reflow-maven-skin)
-->
<html xml:lang="en" lang="en">
@@ -30,24 +36,31 @@
<![endif]-->
- <script type="text/javascript">
-
- var _gaq = _gaq || [];
- _gaq.push(['_setAccount', 'UA-3211522-12']);
- _gaq.push(['_trackPageview']);
- (function() {
- var ga = document.createElement('script'); ga.type =
'text/javascript'; ga.async = true;
- ga.src = ('https:' == document.location.protocol ? 'https://ssl' :
'http://www') + '.google-analytics.com/ga.js';
- var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(ga, s);
- })();
- </script>
- </head>
+
+<!-- Matomo -->
+<script>
+ var _paq = window._paq = window._paq || [];
+ _paq.push(['disableCookies']);
+ _paq.push(['trackPageView']);
+ _paq.push(['enableLinkTracking']);
+
+ (function() {
+ var u="https://analytics.apache.org";;
+ _paq.push(['setTrackerUrl', u+'/matomo.php']);
+ _paq.push(['setSiteId', '15']);
+ var d=document, g=d.createElement('script'),
s=d.getElementsByTagName('script')[0];
+ g.async=true; g.src=u+'/matomo.js'; s.parentNode.insertBefore(g,s);
+ })();
+</script>
+<!-- End Matomo Code -->
+ </head>
<body class="page-download project-099-docs" data-spy="scroll"
data-offset="60" data-target="#toc-scroll-target">
+
<div class="navbar navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
@@ -120,7 +133,7 @@
<li><a href="./" title="Release 0.9.9">Release
0.9.9</a></li>
<li class="divider">/</li>
<li>Apache Helix Downloads</li>
- <li class="publishDate version-date
pull-right">Last Published: 2022-04-23</li>
+ <li class="publishDate version-date
pull-right">Last Published: 2022-04-25</li>
</ul>
</div>
</header>
@@ -151,15 +164,13 @@
<section>
<h2 id="Release">Release</h2>
<p>Release date: 10/13/2020 </p>
- <p><a href="releasenotes/release-0.9.9.html">0.9.9 Release notes</a></p>
- <a name="mirror"></a>
+ <p><a href="releasenotes/release-0.9.9.html">0.9.9 Release notes</a></p> <a
name="mirror"></a>
<section>
<h3 id="Mirror">Mirror</h3>
- <p> [if-any logo] <a href="[link]"> <img src="[logo]" align="right"
border="0" alt="logo" /> </a> [end] The currently selected mirror is
<b>[preferred]</b>. If you encounter a problem with this mirror, please select
another mirror. If all mirrors are failing, there are <i>backup</i> mirrors (at
the end of the mirrors list) that should be available. </p>
+ <p> [if-any logo] <a href="[link]"> <img src="[logo]" align="right"
border="0" alt="logo"> </a> [end] The currently selected mirror is
<b>[preferred]</b>. If you encounter a problem with this mirror, please select
another mirror. If all mirrors are failing, there are <i>backup</i> mirrors (at
the end of the mirrors list) that should be available. </p>
<form action="[location]" method="get" id="SelectMirror" class="form-inline">
- Other mirrors:
- <select name="Preferred" class="input-xlarge"> [if-any http] [for http]
<option value="[http]">[http]</option> [end] [end] [if-any ftp] [for ftp]
<option value="[ftp]">[ftp]</option> [end] [end] [if-any backup] [for backup]
<option value="[backup]">[backup] (backup)</option> [end] [end] </select>
- <input type="submit" value="Change" class="btn" />
+ Other mirrors: <select name="Preferred" class="input-xlarge"> [if-any
http] [for http] <option value="[http]">[http]</option> [end] [end] [if-any
ftp] [for ftp] <option value="[ftp]">[ftp]</option> [end] [end] [if-any backup]
[for backup] <option value="[backup]">[backup] (backup)</option> [end] [end]
</select>
+ <input type="submit" value="Change" class="btn">
</form>
<p> You may also consult the <a class="externalLink"
href="http://www.apache.org/mirrors/";>complete list of mirrors.</a> </p>
</section>
@@ -225,12 +236,12 @@
<pre>% pgpk -a KEYS
% pgpv downloaded_file.asc</pre>
</div> or
- <br />
+ <br>
<div class="source">
<pre>% pgp -ka KEYS
% pgp downloaded_file.asc</pre>
</div> or
- <br />
+ <br>
<div class="source">
<pre>% gpg --import KEYS
% gpg --verify downloaded_file.asc</pre>
@@ -311,7 +322,7 @@
<div class="span12">
<p class="pull-right"><a href="#">Back to
top</a></p>
<p class="copyright">Copyright ©2022 <a
href="https://www.apache.org/";>The Apache Software Foundation</a>. All Rights
Reserved.</p>
- <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> by <a href="https://andrius.velykis.lt";
target="_blank" title="Andrius Velykis">Andrius Velykis</a>.</p>
+ <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> maintained by <a href="https://twitter.com/olamy";
target="_blank" title="Olivier Lamy">Olivier Lamy</a>.</p>
<div class="row span16"><div>Apache Helix, Apache, the Apache
feather logo, and the Apache Helix project logos are trademarks of The Apache
Software Foundation.
All other marks mentioned may be trademarks or registered trademarks
of their respective owners.</div>
<a
href="https://helix.apache.org/0.9.9-docs/privacy-policy.html";>Privacy
Policy</a>
Modified: helix/site-content/0.9.9-docs/index.html
URL:
http://svn.apache.org/viewvc/helix/site-content/0.9.9-docs/index.html?rev=1900255&r1=1900254&r2=1900255&view=diff
==============================================================================
--- helix/site-content/0.9.9-docs/index.html (original)
+++ helix/site-content/0.9.9-docs/index.html Mon Apr 25 08:18:23 2022
@@ -1,7 +1,13 @@
<!DOCTYPE html>
+
+
+
+
+
+
<!--
- Generated by Apache Maven Doxia at 2022-04-23 Rendered using Reflow Maven
Skin 2.0.0-SNAPSHOT (https://andriusvelykis.github.io/reflow-maven-skin)
+ Generated by Apache Maven Doxia at 2022-04-25 Rendered using Reflow Maven
Skin 2.0.0 (https://olamy.github.io/reflow-maven-skin)
-->
<html xml:lang="en" lang="en">
@@ -29,24 +35,31 @@
<![endif]-->
- <script type="text/javascript">
-
- var _gaq = _gaq || [];
- _gaq.push(['_setAccount', 'UA-3211522-12']);
- _gaq.push(['_trackPageview']);
- (function() {
- var ga = document.createElement('script'); ga.type =
'text/javascript'; ga.async = true;
- ga.src = ('https:' == document.location.protocol ? 'https://ssl' :
'http://www') + '.google-analytics.com/ga.js';
- var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(ga, s);
- })();
- </script>
- </head>
+
+<!-- Matomo -->
+<script>
+ var _paq = window._paq = window._paq || [];
+ _paq.push(['disableCookies']);
+ _paq.push(['trackPageView']);
+ _paq.push(['enableLinkTracking']);
+
+ (function() {
+ var u="https://analytics.apache.org";;
+ _paq.push(['setTrackerUrl', u+'/matomo.php']);
+ _paq.push(['setSiteId', '15']);
+ var d=document, g=d.createElement('script'),
s=d.getElementsByTagName('script')[0];
+ g.async=true; g.src=u+'/matomo.js'; s.parentNode.insertBefore(g,s);
+ })();
+</script>
+<!-- End Matomo Code -->
+ </head>
<body class="page-index project-099-docs" data-spy="scroll"
data-offset="60" data-target="#toc-scroll-target">
+
<div class="navbar navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
@@ -119,7 +132,7 @@
<li><a href="./" title="Release 0.9.9">Release
0.9.9</a></li>
<li class="divider">/</li>
<li>Helix 0.9.9 Documentation</li>
- <li class="publishDate version-date
pull-right">Last Published: 2022-04-23</li>
+ <li class="publishDate version-date
pull-right">Last Published: 2022-04-25</li>
</ul>
</div>
</header>
@@ -231,7 +244,7 @@
<div class="span12">
<p class="pull-right"><a href="#">Back to
top</a></p>
<p class="copyright">Copyright ©2022 <a
href="https://www.apache.org/";>The Apache Software Foundation</a>. All Rights
Reserved.</p>
- <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> by <a href="https://andrius.velykis.lt";
target="_blank" title="Andrius Velykis">Andrius Velykis</a>.</p>
+ <p><a
href="https://github.com/olamy/reflow-maven-skin"; title="Reflow Maven
skin">Reflow Maven skin</a> maintained by <a href="https://twitter.com/olamy";
target="_blank" title="Olivier Lamy">Olivier Lamy</a>.</p>
<div class="row span16"><div>Apache Helix, Apache, the Apache
feather logo, and the Apache Helix project logos are trademarks of The Apache
Software Foundation.
All other marks mentioned may be trademarks or registered trademarks
of their respective owners.</div>
<a
href="https://helix.apache.org/0.9.9-docs/privacy-policy.html";>Privacy
Policy</a>
