Author: mattf
Date: Mon May 7 18:58:18 2012
New Revision: 1335192
URL: http://svn.apache.org/viewvc?rev=1335192&view=rev
Log:
HADOOP-8027. Visiting /jmx on the daemon web interfaces may print unnecessary
error in logs. Contributed by Aaron T. Myers. Ported to hadoop-1 by Hitesh Shah.
Modified:
hadoop/common/branches/branch-1.0/CHANGES.txt
hadoop/common/branches/branch-1.0/src/core/org/apache/hadoop/jmx/JMXJsonServlet.java
hadoop/common/branches/branch-1.0/src/docs/releasenotes.html
Modified: hadoop/common/branches/branch-1.0/CHANGES.txt
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-1.0/CHANGES.txt?rev=1335192&r1=1335191&r2=1335192&view=diff
==============================================================================
--- hadoop/common/branches/branch-1.0/CHANGES.txt (original)
+++ hadoop/common/branches/branch-1.0/CHANGES.txt Mon May 7 18:58:18 2012
@@ -92,6 +92,9 @@ Release 1.0.3 - 2012.05.07
MAPREDUCE-4012. Hadoop Job setup error leaves no useful info to users
(when LinuxTaskController is used) (tgraves)
+ HADOOP-8027. Visiting /jmx on the daemon web interfaces may print
unnecessary
+ error in logs (Aaron Myers and Hitesh Shah)
+
Release 1.0.2 - 2012.03.24
NEW FEATURES
Modified:
hadoop/common/branches/branch-1.0/src/core/org/apache/hadoop/jmx/JMXJsonServlet.java
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-1.0/src/core/org/apache/hadoop/jmx/JMXJsonServlet.java?rev=1335192&r1=1335191&r2=1335192&view=diff
==============================================================================
---
hadoop/common/branches/branch-1.0/src/core/org/apache/hadoop/jmx/JMXJsonServlet.java
(original)
+++
hadoop/common/branches/branch-1.0/src/core/org/apache/hadoop/jmx/JMXJsonServlet.java
Mon May 7 18:58:18 2012
@@ -34,6 +34,7 @@ import javax.management.MBeanServer;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import javax.management.ReflectionException;
+import javax.management.RuntimeMBeanException;
import javax.management.openmbean.CompositeData;
import javax.management.openmbean.CompositeType;
import javax.management.openmbean.TabularData;
@@ -249,6 +250,15 @@ public class JMXJsonServlet extends Http
Object value = null;
try {
value = mBeanServer.getAttribute(oname, attName);
+ } catch (RuntimeMBeanException e) {
+ // UnsupportedOperationExceptions happen in the normal course of
business,
+ // so no need to log them as errors all the time.
+ if (e.getCause() instanceof UnsupportedOperationException) {
+ LOG.debug("getting attribute "+attName+" of "+oname+" threw an
exception", e);
+ } else {
+ LOG.error("getting attribute "+attName+" of "+oname+" threw an
exception", e);
+ }
+ return;
} catch (AttributeNotFoundException e) {
//Ignored the attribute was not found, which should never happen because
the bean
//just told us that it has this attribute, but if this happens just
don't output
Modified: hadoop/common/branches/branch-1.0/src/docs/releasenotes.html
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-1.0/src/docs/releasenotes.html?rev=1335192&r1=1335191&r2=1335192&view=diff
==============================================================================
--- hadoop/common/branches/branch-1.0/src/docs/releasenotes.html (original)
+++ hadoop/common/branches/branch-1.0/src/docs/releasenotes.html Mon May 7
18:58:18 2012
@@ -62,6 +62,11 @@
<b>FindBugs OutOfMemoryError</b><br>
<blockquote>When running the findbugs target from Jenkins, I get an
OutOfMemory error.<br>The "effort" in FindBugs is set to Max which
ends up using a lot of memory to go through all the classes. The jvmargs passed
to FindBugs is hardcoded to 512 MB max.<br><br>We can leave the default to
512M, as long as we pass this as an ant parameter which can be overwritten in
individual cases through -D, or in the build.properties file (either basedir,
or user's home directory).<br></blockquote></li>
+<li> <a
href="https://issues.apache.org/jira/browse/HADOOP-8027";>HADOOP-8027</a>.
+ Minor improvement reported by qwertymaniac and fixed by atm (metrics)<br>
+ <b>Visiting /jmx on the daemon web interfaces may print unnecessary error
in logs</b><br>
+ <blockquote>Logs that follow a {{/jmx}} servlet
visit:<br><br>{code}<br>11/11/22 12:09:52 ERROR jmx.JMXJsonServlet: getting
attribute UsageThreshold of java.lang:type=MemoryPool,name=Par Eden Space threw
an exception<br>javax.management.RuntimeMBeanException:
java.lang.UnsupportedOperationException: Usage threshold is not supported<br>
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:856)<br>...<br>{code}</blockquote></li>
+
<li> <a
href="https://issues.apache.org/jira/browse/HADOOP-8151";>HADOOP-8151</a>.
Major bug reported by tlipcon and fixed by mattf (io, native)<br>
<b>Error handling in snappy decompressor throws invalid exceptions</b><br>
