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From mwa...@apache.org
Subject [09/10] accumulo-website git commit: Jekyll build from master:036341f
Date Mon, 22 May 2017 20:10:58 GMT
http://git-wip-us.apache.org/repos/asf/accumulo-website/blob/3e4443c1/docs/unreleased/administration/monitoring-metrics.html
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+<!DOCTYPE html>
+<html lang="en">
+<head>
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+        <div id="content">
+          
+          <div class="alert alert-danger" role="alert">This documentation is for an
unreleased version of Apache Accumulo that is currently under development! Check out the <a
href="/1.8/accumulo_user_manual.html">documentation for the latest release</a>.</div>
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Shell</a></div>
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Design</a></div>
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Configuration</a></div>
+                
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+                </a>
+              </h4>
+            </div>
+            <div id="collapsedevelopment" class="panel-collapse collapse" role="tabpanel"
aria-labelledby="headingOne">
+              <div class="panel-body">
+                
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/development/iterator_design">Iterator
Design</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/development/iterator_testing">Iterator
Testing</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/development/development_tools">Development
Tools</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/development/sampling">Sampling</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/development/summaries">Summary
Statistics</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/development/security">Security</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/development/high_speed_ingest">High-Speed
Ingest</a></div>
+                
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+                
+              </div>
+            </div>
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+                <a role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseadministration"
aria-expanded="true" aria-controls="collapseadministration">
+                  Administration
+                </a>
+              </h4>
+            </div>
+            <div id="collapseadministration" class="panel-collapse collapse in" role="tabpanel"
aria-labelledby="headingOne">
+              <div class="panel-body">
+                
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/installation">Installation</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/configuration-management">Configuration
Management</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/configuration-properties">Configuration
Properties</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/monitoring-metrics">Monitoring
& Metrics</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/tracing">Tracing</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/fate">FATE</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/multivolume">Multi-Volume
Installations</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/ssl">SSL</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/kerberos">Kerberos</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/replication">Replication</a></div>
+                
+              </div>
+            </div>
+          
+        
+          
+        
+          
+        
+          
+        
+          
+        
+      
+        
+          
+        
+          
+        
+          
+        
+          
+        
+          
+            <div class="panel-heading" role="tab" id="headingOne">
+              <h4 class="panel-title">
+                <a role="button" data-toggle="collapse" data-parent="#accordion" href="#collapsetroubleshooting"
aria-expanded="false" aria-controls="collapsetroubleshooting">
+                  Troubleshooting
+                </a>
+              </h4>
+            </div>
+            <div id="collapsetroubleshooting" class="panel-collapse collapse" role="tabpanel"
aria-labelledby="headingOne">
+              <div class="panel-body">
+                
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/troubleshooting/basic">Basic
Troubleshooting</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/troubleshooting/advanced">Advanced
Troubleshooting</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/troubleshooting/tools">Troubleshooting
Tools</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/troubleshooting/system-metadata-tables">System
Metadata Tables</a></div>
+                
+              </div>
+            </div>
+          
+        
+      
+      </div>
+    </div>
+  </div>
+  <div class="col-md-9">
+    
+    <p><a href="/docs/unreleased/">Accumulo unreleased docs</a> &nbsp;&gt;&gt;&nbsp;
Administration &nbsp;&gt;&gt;&nbsp; Monitoring & Metrics</p>
+    
+    
+    <h1>Monitoring & Metrics</h1>
+    
+    <h2 id="monitoring">Monitoring</h2>
+
+<h3 id="accumulo-monitor">Accumulo Monitor</h3>
+
+<p>The Accumulo Monitor provides an interface for monitoring the status and health
of
+Accumulo components. The Accumulo Monitor provides a web UI for accessing this information
at
+<code class="highlighter-rouge">http://_monitorhost_:9995/</code>.</p>
+
+<p>Things highlighted in yellow may be in need of attention.
+If anything is highlighted in red on the monitor page, it is something that definitely needs
attention.</p>
+
+<p>The Overview page contains some summary information about the Accumulo instance,
including the version, instance name, and instance ID.
+There is a table labeled Accumulo Master with current status, a table listing the active
Zookeeper servers, and graphs displaying various metrics over time.
+These include ingest and scan performance and other useful measurements.</p>
+
+<p>The Master Server, Tablet Servers, and Tables pages display metrics grouped in different
ways (e.g. by tablet server or by table).
+Metrics typically include number of entries (key/value pairs), ingest and query rates.
+The number of running scans, major and minor compactions are in the form <em>number_running</em>
(<em>number_queued</em>).
+Another important metric is hold time, which is the amount of time a tablet has been waiting
but unable to flush its memory in a minor compaction.</p>
+
+<p>The Server Activity page graphically displays tablet server status, with each server
represented as a circle or square.
+Different metrics may be assigned to the nodes’ color and speed of oscillation.
+The Overall Avg metric is only used on the Server Activity page, and represents the average
of all the other metrics (after normalization).
+Similarly, the Overall Max metric picks the metric with the maximum normalized value.</p>
+
+<p>The Garbage Collector page displays a list of garbage collection cycles, the number
of files found of each type (including deletion candidates in use and files actually deleted),
and the length of the deletion cycle.
+The Traces page displays data for recent traces performed (see the following section for
information on <a href="/docs/unreleased/administration/tracing">tracing</a>).
+The Recent Logs page displays warning and error logs forwarded to the monitor from all Accumulo
processes.
+Also, the XML and JSON links provide metrics in XML and JSON formats, respectively.</p>
+
+<h3 id="ssl">SSL</h3>
+
+<p>SSL may be enabled for the monitor page by setting the following properties in the
<code class="highlighter-rouge">accumulo-site.xml</code> file:</p>
+
+<div class="highlighter-rouge"><pre class="highlight"><code>monitor.ssl.keyStore
+monitor.ssl.keyStorePassword
+monitor.ssl.trustStore
+monitor.ssl.trustStorePassword
+</code></pre>
+</div>
+
+<p>If the Accumulo conf directory has been configured (in particular the <code class="highlighter-rouge">accumulo-env.sh</code>
file must be set up), the 
+<code class="highlighter-rouge">accumulo-util gen-monitor-cert</code> command
can be used to create the keystore and truststore files with random passwords. The command
+will print out the properties that need to be added to the <code class="highlighter-rouge">accumulo-site.xml</code>
file. The stores can also be generated manually with the
+Java <code class="highlighter-rouge">keytool</code> command, whose usage can
be seen in the <code class="highlighter-rouge">accumulo-util</code> script.</p>
+
+<p>If desired, the SSL ciphers allowed for connections can be controlled via the following
properties in <code class="highlighter-rouge">accumulo-site.xml</code>:</p>
+
+<div class="highlighter-rouge"><pre class="highlight"><code>monitor.ssl.include.ciphers
+monitor.ssl.exclude.ciphers
+</code></pre>
+</div>
+
+<p>If SSL is enabled, the monitor URL can only be accessed via https.
+This also allows you to access the Accumulo shell through the monitor page.
+The left navigation bar will have a new link to Shell.
+An Accumulo user name and password must be entered for access to the shell.</p>
+
+<h2 id="metrics">Metrics</h2>
+
+<p>Accumulo can expose metrics through a legacy metrics library and using the Hadoop
Metrics2 library.</p>
+
+<h3 id="legacy-metrics">Legacy Metrics</h3>
+
+<p>Accumulo has a legacy metrics library that can be exposes metrics using JMX endpoints
or file-based logging. These metrics can
+be enabled by setting <code class="highlighter-rouge">general.legacy.metrics</code>
to <code class="highlighter-rouge">true</code> in <code class="highlighter-rouge">accumulo-site.xml</code>
and placing the <code class="highlighter-rouge">accumulo-metrics.xml</code>
+configuration file on the classpath (which is typically done by placing the file in the <code
class="highlighter-rouge">conf/</code> directory). A template for
+<code class="highlighter-rouge">accumulo-metrics.xml</code> can be found in <code
class="highlighter-rouge">conf/templates</code> of the Accumulo tarball.</p>
+
+<h3 id="hadoop-metrics2">Hadoop Metrics2</h3>
+
+<p>Hadoop Metrics2 is a library which allows for routing of metrics generated by registered
MetricsSources to
+configured MetricsSinks. Examples of sinks that are implemented by Hadoop include file-based
logging, Graphite and Ganglia.
+All metric sources are exposed via JMX when using Metrics2.</p>
+
+<p>Metrics2 is configured by examining the classpath for a file that matches <code
class="highlighter-rouge">hadoop-metrics2*.properties</code>. The Accumulo tarball

+contains an example <code class="highlighter-rouge">hadoop-metrics2-accumulo.properties</code>
file in <code class="highlighter-rouge">conf/templates</code> which can be copied
to <code class="highlighter-rouge">conf/</code> to place
+on classpath. This file is used to enable file, Graphite or Ganglia sinks (some minimal configuration
required for Graphite
+and Ganglia). Because the Hadoop configuration is also on the Accumulo classpath, be sure
that you do not have multiple
+Metrics2 configuration files. It is recommended to consolidate metrics in a single properties
file in a central location to
+remove ambiguity. The contents of <code class="highlighter-rouge">hadoop-metrics2-accumulo.properties</code>
can be added to a central <code class="highlighter-rouge">hadoop-metrics2.properties</code>
+in <code class="highlighter-rouge">$HADOOP_CONF_DIR</code>.</p>
+
+<p>As a note for configuring the file sink, the provided path should be absolute. A
relative path or file name will be created relative
+to the directory in which the Accumulo process was started. External tools, such as logrotate,
can be used to prevent these files
+from growing without bound.</p>
+
+<p>Each server process should have log messages from the Metrics2 library about the
sinks that were created. Be sure to check
+the Accumulo processes log files when debugging missing metrics output.</p>
+
+<p>For additional information on configuring Metrics2, visit the <a href="https://hadoop.apache.org/docs/current/api/org/apache/hadoop/metrics2/package-summary.html">Javadoc
page for Metrics2</a>.</p>
+
+
+  </div>
+</div>
+
+        </div>
+
+        
+<footer>
+
+  <p><a href="https://www.apache.org/foundation/contributing"><img src="https://www.apache.org/images/SupportApache-small.png"
alt="Support the ASF" id="asf-logo" height="100" /></a></p>
+
+  <p>Copyright © 2011-2017 The Apache Software Foundation. Licensed under the <a
href="https://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
+
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+
+
+      </div>
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+</body>
+</html>

http://git-wip-us.apache.org/repos/asf/accumulo-website/blob/3e4443c1/docs/unreleased/administration/multivolume.html
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diff --git a/docs/unreleased/administration/multivolume.html b/docs/unreleased/administration/multivolume.html
index e5abe91..8ed1b03 100644
--- a/docs/unreleased/administration/multivolume.html
+++ b/docs/unreleased/administration/multivolume.html
@@ -240,15 +240,15 @@
               <div class="panel-body">
                 
                 
-                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/overview">Overview</a></div>
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/installation">Installation</a></div>
                 
                 <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/configuration-management">Configuration
Management</a></div>
                 
                 <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/configuration-properties">Configuration
Properties</a></div>
                 
-                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/kerberos">Kerberos</a></div>
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/monitoring-metrics">Monitoring
& Metrics</a></div>
                 
-                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/replication">Replication</a></div>
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/tracing">Tracing</a></div>
                 
                 <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/fate">FATE</a></div>
                 
@@ -256,6 +256,10 @@
                 
                 <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/ssl">SSL</a></div>
                 
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/kerberos">Kerberos</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/administration/replication">Replication</a></div>
+                
               </div>
             </div>
           
@@ -290,7 +294,13 @@
               <div class="panel-body">
                 
                 
-                <div class="row doc-sidebar-link"><a href="/docs/unreleased/troubleshooting/overview">Overview</a></div>
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/troubleshooting/basic">Basic
Troubleshooting</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/troubleshooting/advanced">Advanced
Troubleshooting</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/troubleshooting/tools">Troubleshooting
Tools</a></div>
+                
+                <div class="row doc-sidebar-link"><a href="/docs/unreleased/troubleshooting/system-metadata-tables">System
Metadata Tables</a></div>
                 
               </div>
             </div>


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