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Posted to commits@hbase.apache.org by jd...@apache.org on 2010/01/17 01:24:36 UTC
svn commit: r900036 - in /hadoop/hbase/branches/0.20: ./ docs/
src/java/org/apache/hadoop/hbase/metrics/
src/java/org/apache/hadoop/hbase/regionserver/metrics/
Author: jdcryans
Date: Sun Jan 17 00:24:35 2010
New Revision: 900036
URL: http://svn.apache.org/viewvc?rev=900036&view=rev
Log:
HBASE-2138 unknown metrics type (Stack via JD)
Modified:
hadoop/hbase/branches/0.20/CHANGES.txt
hadoop/hbase/branches/0.20/docs/index.html
hadoop/hbase/branches/0.20/docs/index.pdf
hadoop/hbase/branches/0.20/docs/linkmap.html
hadoop/hbase/branches/0.20/docs/linkmap.pdf
hadoop/hbase/branches/0.20/docs/metrics.html
hadoop/hbase/branches/0.20/docs/metrics.pdf
hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/metrics/MetricsMBeanBase.java
hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/regionserver/metrics/RegionServerMetrics.java
Modified: hadoop/hbase/branches/0.20/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/CHANGES.txt?rev=900036&r1=900035&r2=900036&view=diff
==============================================================================
--- hadoop/hbase/branches/0.20/CHANGES.txt (original)
+++ hadoop/hbase/branches/0.20/CHANGES.txt Sun Jan 17 00:24:35 2010
@@ -58,6 +58,7 @@
HBASE-2127 randomWrite mode of PerformanceEvaluation benchmark program
writes only to a small range of keys (Kannan Muthukkaruppan
via Stack)
+ HBASE-2138 unknown metrics type (Stack via JD)
IMPROVEMENTS
HBASE-1970 Export does one version only; make it configurable how many
Modified: hadoop/hbase/branches/0.20/docs/index.html
URL: http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/docs/index.html?rev=900036&r1=900035&r2=900036&view=diff
==============================================================================
--- hadoop/hbase/branches/0.20/docs/index.html (original)
+++ hadoop/hbase/branches/0.20/docs/index.html Sun Jan 17 00:24:35 2010
@@ -117,6 +117,9 @@
<a href="metrics.html">HBase Metrics</a>
</div>
<div class="menuitem">
+<a href="cygwin.html">HBase on Windows</a>
+</div>
+<div class="menuitem">
<a href="http://wiki.apache.org/hadoop/Hbase">Wiki</a>
</div>
<div class="menuitem">
@@ -193,7 +196,7 @@
</div>
<div class="copyright">
Copyright ©
- 2008 <a href="http://www.apache.org/licenses/">The Apache Software Foundation.</a>
+ 2009 <a href="http://www.apache.org/licenses/">The Apache Software Foundation.</a>
</div>
<div id="logos"></div>
<!--+
Modified: hadoop/hbase/branches/0.20/docs/index.pdf
URL: http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/docs/index.pdf?rev=900036&r1=900035&r2=900036&view=diff
==============================================================================
--- hadoop/hbase/branches/0.20/docs/index.pdf (original)
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trailer
<<
Modified: hadoop/hbase/branches/0.20/docs/linkmap.html
URL: http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/docs/linkmap.html?rev=900036&r1=900035&r2=900036&view=diff
==============================================================================
--- hadoop/hbase/branches/0.20/docs/linkmap.html (original)
+++ hadoop/hbase/branches/0.20/docs/linkmap.html Sun Jan 17 00:24:35 2010
@@ -117,6 +117,9 @@
<a href="metrics.html">HBase Metrics</a>
</div>
<div class="menuitem">
+<a href="cygwin.html">HBase on Windows</a>
+</div>
+<div class="menuitem">
<a href="http://wiki.apache.org/hadoop/Hbase">Wiki</a>
</div>
<div class="menuitem">
@@ -188,6 +191,12 @@
<ul>
<li>
+<a href="cygwin.html">HBase on Windows</a> ___________________ <em>api</em>
+</li>
+</ul>
+
+<ul>
+<li>
<a href="http://wiki.apache.org/hadoop/Hbase">Wiki</a> ___________________ <em>wiki</em>
</li>
</ul>
@@ -229,7 +238,7 @@
</div>
<div class="copyright">
Copyright ©
- 2008 <a href="http://www.apache.org/licenses/">The Apache Software Foundation.</a>
+ 2009 <a href="http://www.apache.org/licenses/">The Apache Software Foundation.</a>
</div>
<!--+
|end bottomstrip
Modified: hadoop/hbase/branches/0.20/docs/linkmap.pdf
URL: http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/docs/linkmap.pdf?rev=900036&r1=900035&r2=900036&view=diff
==============================================================================
--- hadoop/hbase/branches/0.20/docs/linkmap.pdf (original)
+++ hadoop/hbase/branches/0.20/docs/linkmap.pdf Sun Jan 17 00:24:35 2010
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%%EOF
Modified: hadoop/hbase/branches/0.20/docs/metrics.html
URL: http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/docs/metrics.html?rev=900036&r1=900035&r2=900036&view=diff
==============================================================================
--- hadoop/hbase/branches/0.20/docs/metrics.html (original)
+++ hadoop/hbase/branches/0.20/docs/metrics.html Sun Jan 17 00:24:35 2010
@@ -119,6 +119,9 @@
<div class="menupagetitle">HBase Metrics</div>
</div>
<div class="menuitem">
+<a href="cygwin.html">HBase on Windows</a>
+</div>
+<div class="menuitem">
<a href="http://wiki.apache.org/hadoop/Hbase">Wiki</a>
</div>
<div class="menuitem">
@@ -158,6 +161,20 @@
<li>
<a href="#HOWTO">HOWTO</a>
</li>
+<li>
+<a href="#Using+with+JMX"> Using with JMX </a>
+<ul class="minitoc">
+<li>
+<a href="#Enable+HBase+stats+collection">Enable HBase stats collection</a>
+</li>
+<li>
+<a href="#Setup+JMX+remote+access">Setup JMX remote access</a>
+</li>
+<li>
+<a href="#Configure+JMX+in+HBase+startup">Configure JMX in HBase startup</a>
+</li>
+</ul>
+</li>
</ul>
</div>
@@ -185,7 +202,7 @@
</p>
<p>
If you enable the <em>hbase</em> context, on regionservers you'll see total requests since last
- metric emission, count of regions and storefiles as well as a count of memcache size.
+ metric emission, count of regions and storefiles as well as a count of memstore size.
On the master, you'll see a count of the cluster's requests.
</p>
<p>
@@ -199,6 +216,110 @@
in ganglia, the stats are aggregated rather than reported per instance.
</p>
</div>
+
+
+<a name="N10051"></a><a name="Using+with+JMX"></a>
+<h2 class="h3"> Using with JMX </h2>
+<div class="section">
+<p>
+ In addition to the standard output contexts supported by the Hadoop
+ metrics package, you can also export HBase metrics via Java Management
+ Extensions (JMX). This will allow viewing HBase stats in JConsole or
+ any other JMX client.
+ </p>
+<a name="N1005A"></a><a name="Enable+HBase+stats+collection"></a>
+<h3 class="h4">Enable HBase stats collection</h3>
+<p>
+ To enable JMX support in HBase, first edit
+ <span class="codefrag">$HBASE_HOME/conf/hadoop-metrics.properties</span> to support
+ metrics refreshing. (If you've already configured
+ <span class="codefrag">hadoop-metrics.properties</span> for another output context,
+ you can skip this step).
+ </p>
+<pre class="code">
+# Configuration of the "hbase" context for null
+hbase.class=org.apache.hadoop.metrics.spi.NullContextWithUpdateThread
+hbase.period=60
+
+# Configuration of the "jvm" context for null
+jvm.class=org.apache.hadoop.metrics.spi.NullContextWithUpdateThread
+jvm.period=60
+
+# Configuration of the "rpc" context for null
+rpc.class=org.apache.hadoop.metrics.spi.NullContextWithUpdateThread
+rpc.period=60
+ </pre>
+<a name="N1006E"></a><a name="Setup+JMX+remote+access"></a>
+<h3 class="h4">Setup JMX remote access</h3>
+<p>
+ For remote access, you will need to configure JMX remote passwords
+ and access profiles. Create the files:
+ </p>
+<dl>
+
+<dt>
+<span class="codefrag">$HBASE_HOME/conf/jmxremote.passwd</span> (set permissions
+ to 600)</dt>
+
+<dd>
+
+<pre class="code">
+monitorRole monitorpass
+controlRole controlpass
+ </pre>
+
+</dd>
+
+
+<dt>
+<span class="codefrag">$HBASE_HOME/conf/jmxremote.access</span>
+</dt>
+
+<dd>
+
+<pre class="code">
+monitorRole readonly
+controlRole readwrite
+ </pre>
+
+</dd>
+
+</dl>
+<a name="N10092"></a><a name="Configure+JMX+in+HBase+startup"></a>
+<h3 class="h4">Configure JMX in HBase startup</h3>
+<p>
+ Finally, edit the <span class="codefrag">$HBASE_HOME/conf/hbase-env.sh</span>
+ script to add JMX support:
+ </p>
+<dl>
+
+<dt>
+<span class="codefrag">$HBASE_HOME/conf/hbase-env.sh</span>
+</dt>
+
+<dd>
+
+<p>Add the lines:</p>
+
+<pre class="code">
+HBASE_JMX_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.ssl=false"
+HBASE_JMX_OPTS="$HBASE_JMX_OPTS -Dcom.sun.management.jmxremote.password.file=$HBASE_HOME/conf/jmxremote.passwd"
+HBASE_JMX_OPTS="$HBASE_JMX_OPTS -Dcom.sun.management.jmxremote.access.file=$HBASE_HOME/conf/jmxremote.access"
+
+export HBASE_MASTER_OPTS="$HBASE_JMX_OPTS -Dcom.sun.management.jmxremote.port=10101"
+export HBASE_REGIONSERVER_OPTS="$HBASE_JMX_OPTS -Dcom.sun.management.jmxremote.port=10102"
+ </pre>
+
+</dd>
+
+</dl>
+<p>
+ After restarting the processes you want to monitor, you should now be
+ able to run JConsole (included with the JDK since JDK 5.0) to view
+ the statistics via JMX. HBase MBeans are exported under the
+ <strong><span class="codefrag">hadoop</span></strong> domain in JMX.
+ </p>
+</div>
</div>
<!--+
@@ -217,7 +338,7 @@
</div>
<div class="copyright">
Copyright ©
- 2008 <a href="http://www.apache.org/licenses/">The Apache Software Foundation.</a>
+ 2009 <a href="http://www.apache.org/licenses/">The Apache Software Foundation.</a>
</div>
<!--+
|end bottomstrip
Modified: hadoop/hbase/branches/0.20/docs/metrics.pdf
URL: http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/docs/metrics.pdf?rev=900036&r1=900035&r2=900036&view=diff
==============================================================================
--- hadoop/hbase/branches/0.20/docs/metrics.pdf (original)
+++ hadoop/hbase/branches/0.20/docs/metrics.pdf Sun Jan 17 00:24:35 2010
@@ -5,10 +5,10 @@
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%%EOF
Modified: hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/metrics/MetricsMBeanBase.java
URL: http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/metrics/MetricsMBeanBase.java?rev=900036&r1=900035&r2=900036&view=diff
==============================================================================
--- hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/metrics/MetricsMBeanBase.java (original)
+++ hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/metrics/MetricsMBeanBase.java Sun Jan 17 00:24:35 2010
@@ -20,7 +20,6 @@
package org.apache.hadoop.hbase.metrics;
import java.util.ArrayList;
-import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@@ -59,12 +58,27 @@
protected MBeanInfo extendedInfo;
protected MetricsMBeanBase( MetricsRegistry mr, String description ) {
- super(mr, description);
+ super(copyMinusHBaseMetrics(mr), description);
this.registry = mr;
this.description = description;
this.init();
}
+ /*
+ * @param mr MetricsRegistry.
+ * @return A copy of the passed MetricsRegistry minus the hbase metrics
+ */
+ private static MetricsRegistry copyMinusHBaseMetrics(final MetricsRegistry mr) {
+ MetricsRegistry copy = new MetricsRegistry();
+ for (MetricsBase metric : mr.getMetricsList()) {
+ if (metric instanceof org.apache.hadoop.hbase.metrics.MetricsRate) {
+ continue;
+ }
+ copy.add(metric.getName(), metric);
+ }
+ return copy;
+ }
+
protected void init() {
List<MBeanAttributeInfo> attributes = new ArrayList<MBeanAttributeInfo>();
MBeanInfo parentInfo = super.getMBeanInfo();
@@ -81,13 +95,12 @@
continue;
// add on custom HBase metric types
- if (metric instanceof MetricsRate) {
+ if (metric instanceof org.apache.hadoop.hbase.metrics.MetricsRate) {
attributes.add( new MBeanAttributeInfo(metric.getName(),
"java.lang.Float", metric.getDescription(), true, false, false) );
extendedAttributes.put(metric.getName(), metric);
- } else {
- LOG.error("unknown metrics instance: "+metric.getClass().getName());
- }
+ }
+ // else, its probably a hadoop metric already registered. Skip it.
}
this.extendedInfo = new MBeanInfo( this.getClass().getName(),
Modified: hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/regionserver/metrics/RegionServerMetrics.java
URL: http://svn.apache.org/viewvc/hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/regionserver/metrics/RegionServerMetrics.java?rev=900036&r1=900035&r2=900036&view=diff
==============================================================================
--- hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/regionserver/metrics/RegionServerMetrics.java (original)
+++ hadoop/hbase/branches/0.20/src/java/org/apache/hadoop/hbase/regionserver/metrics/RegionServerMetrics.java Sun Jan 17 00:24:35 2010
@@ -169,13 +169,26 @@
this.blockCacheFree.pushMetric(this.metricsRecord);
this.blockCacheCount.pushMetric(this.metricsRecord);
this.blockCacheHitRatio.pushMetric(this.metricsRecord);
-
- // mix in HFile metrics
- this.fsReadLatency.inc((int)HFile.getReadOps(), HFile.getReadTime());
- this.fsWriteLatency.inc((int)HFile.getWriteOps(), HFile.getWriteTime());
+
+ // Mix in HFile and HLog metrics
+ // Be careful. Here is code for MTVR from up in hadoop:
+ // public synchronized void inc(final int numOps, final long time) {
+ // currentData.numOperations += numOps;
+ // currentData.time += time;
+ // long timePerOps = time/numOps;
+ // minMax.update(timePerOps);
+ // }
+ // Means you can't pass a numOps of zero or get a ArithmeticException / by zero.
+ int ops = (int)HFile.getReadOps();
+ if (ops != 0) this.fsReadLatency.inc(ops, HFile.getReadTime());
+ ops = (int)HFile.getWriteOps();
+ if (ops != 0) this.fsWriteLatency.inc(ops, HFile.getWriteTime());
// mix in HLog metrics
- this.fsWriteLatency.inc((int)HLog.getWriteOps(), HLog.getWriteTime());
- this.fsSyncLatency.inc((int)HLog.getSyncOps(), HLog.getSyncTime());
+ ops = (int)HLog.getWriteOps();
+ if (ops != 0) this.fsWriteLatency.inc(ops, HLog.getWriteTime());
+ ops = (int)HLog.getSyncOps();
+ if (ops != 0) this.fsSyncLatency.inc(ops, HLog.getSyncTime());
+
// push the result
this.fsReadLatency.pushMetric(this.metricsRecord);
this.fsWriteLatency.pushMetric(this.metricsRecord);
@@ -250,4 +263,4 @@
Long.valueOf(this.fsSyncLatency.getPreviousIntervalAverageTime()));
return sb.toString();
}
-}
\ No newline at end of file
+}