java.util.concurrent.ExecutionException: Provider Exception

     [
https://issues.apache.org/jira/browse...nels:all-tabpanel
]

Bob Schellink updated CLK-636:

     [
https://issues.apache.org/jira/browse...nels:all-tabpanel
]

Bob Schellink resolved CLK-636.

I am trying to run the terasort example with a small input on a 4 node
cluster. I just did the minimal configuration (fs.default.name, master,
slaves etc.), but did not do anything specific to terasort. I am getting
the following java.lang.NullPointerException on running terasort
example:





10/07/16 11:48:29 INFO terasort.TeraSort: starting

10/07/16 11:48:29 INFO mapred.FileInputFormat: Total input paths to
process : 1

10/07/16 11:48:29 INFO util.NativeCodeLoader: Loaded the native-hadoop
library

10/07/16 11:48:29 INFO zlib.ZlibFactory: Successfully loaded &
initialized native-zlib library

10/07/16 11:48:29 INFO compress.CodecPool: Got brand-new compressor

Making 1 from 10 records

Step size is 10.0

10/07/16 11:48:30 INFO mapred.JobClient: Running job:
job_201006251254_0010

10/07/16 11:48:31 INFO mapred.JobClient:  map 0% reduce 0%

10/07/16 11:48:38 INFO mapred.JobClient:  map 50% reduce 0%

10/07/16 11:48:39 INFO mapred.JobClient:  map 100% reduce 0%

10/07/16 11:48:43 INFO mapred.JobClient: Task Id :
attempt_201006251254_0010_r_000000_0, Status : FAILED

Error: java.lang.NullPointerException

        at
java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:768)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$GetMapEventsThread.getM
apCompletionEvents(ReduceTask.java:2683)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$GetMapEventsThread.run(
ReduceTask.java:2605)



10/07/16 11:48:49 INFO mapred.JobClient: Task Id :
attempt_201006251254_0010_r_000000_1, Status : FAILED

Error: java.lang.NullPointerException

        at
java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:768)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$GetMapEventsThread.getM
apCompletionEvents(ReduceTask.java:2683)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$GetMapEventsThread.run(
ReduceTask.java:2605)



10/07/16 11:48:57 INFO mapred.JobClient: Task Id :
attempt_201006251254_0010_r_000000_2, Status : FAILED

Error: java.lang.NullPointerException

        at
java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:768)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$GetMapEventsThread.getM
apCompletionEvents(ReduceTask.java:2683)

        at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$GetMapEventsThread.run(
ReduceTask.java:2605)







Also, I got similar error from reduce jobs on running a streaming
map-reduce application. In this case also, the map tasks completed
successfully.





Any pointers are appreciated.



Thanks,

Ravi Chinni

I installed Java and Hadoop on a GoGrid cloud server using Red Hat
Enterprise Linux Server release 5.1 (Tikanga). Hadoop installed fine and
starts fine, however I get an error (java.lang.NullPointerException at
java.util.concurrent.ConcurrentHashMap) while running the Hadoop wordcount
example. My guess was that this was a localhost or IPv6 issue.

* I have tested replacing 'localhost' with both the local IP, and server
IP
addresses (when out of options) in Hadoop conf
* I have disabled IPv6 both in sysctl.conf and hadoop-env.sh (former
followed by a server restart)

Any thoughts?
Thank you.


The output is given below

# bin/hadoop jar hadoop-0.20.2-examples.jar wordcount datasets tests/out7
10/07/27 05:44:59 INFO input.FileInputFormat: Total input paths to process
:
1
10/07/27 05:44:59 INFO mapred.JobClient: Running job:
job_201007270544_0001
10/07/27 05:45:00 INFO mapred.JobClient: map 0% reduce 0%
10/07/27 05:45:12 INFO mapred.JobClient: map 100% reduce 0%
10/07/27 05:45:17 INFO mapred.JobClient: Task Id :
attempt_201007270544_0001_r_000000_0, Status : FAILED

Error: java.lang.NullPointerException
at java.util.concurrent.ConcurrentHashMap.get(Unknown Source)
at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$GetMapEventsThread.getMapCompletionEvents(ReduceTask.java:2683)

at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$GetMapEventsThread.run(ReduceTask.java:2605)


10/07/27 05:45:24 INFO mapred.JobClient: Task Id :
attempt_201007270544_0001_r_000000_1, Status : FAILED
Error: java.lang.NullPointerException
at java.util.concurrent.ConcurrentHashMap.get(Unknown Source)
at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$GetMapEventsThread.getMapCompletionEvents(ReduceTask.java:2683)

at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$GetMapEventsThread.run(ReduceTask.java:2605)


10/07/27 05:45:30 INFO mapred.JobClient: Task Id :
attempt_201007270544_0001_r_000000_2, Status : FAILED
Error: java.lang.NullPointerException
at java.util.concurrent.ConcurrentHashMap.get(Unknown Source)
at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$GetMapEventsThread.getMapCompletionEvents(ReduceTask.java:2683)

at
org.apache.hadoop.mapred.ReduceTask$ReduceCopier$GetMapEventsThread.run(ReduceTask.java:2605)


10/07/27 05:45:39 INFO mapred.JobClient: Job complete:
job_201007270544_0001

10/07/27 05:45:39 INFO mapred.JobClient: Counters: 12
10/07/27 05:45:39 INFO mapred.JobClient: Job Counters
10/07/27 05:45:39 INFO mapred.JobClient: Launched reduce tasks=4
10/07/27 05:45:39 INFO mapred.JobClient: Launched map tasks=1
10/07/27 05:45:39 INFO mapred.JobClient: Data-local map tasks=1
10/07/27 05:45:39 INFO mapred.JobClient: Failed reduce tasks=1
10/07/27 05:45:39 INFO mapred.JobClient: FileSystemCounters
10/07/27 05:45:39 INFO mapred.JobClient: HDFS_BYTES_READ=15319
10/07/27 05:45:39 INFO mapred.JobClient: FILE_BYTES_WRITTEN=12847
10/07/27 05:45:39 INFO mapred.JobClient: Map-Reduce Framework
10/07/27 05:45:39 INFO mapred.JobClient: Combine output records=934
10/07/27 05:45:39 INFO mapred.JobClient: Map input records=149
10/07/27 05:45:39 INFO mapred.JobClient: Spilled Records=934
10/07/27 05:45:39 INFO mapred.JobClient: Map output bytes=25346
10/07/27 05:45:39 INFO mapred.JobClient: Combine input records=2541
10/07/27 05:45:39 INFO mapred.JobClient: Map output records=2541

I setup a provider service in activeMQ and want to offer 1000 requests at
the
same time. How can I set the thread policy for this provider?

I have a piece of code that retrieves data from oracle database XML type.
It
works on tomcat installation on ubuntu. But fails on CentOS. Any ideas?


java.lang.NoSuchMethodError: method java.util.Collections.emptyMap
with signature ()Ljava.util.Map; was not found.
	javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:337)
	javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:244)
	gdb.UnmarshallerAPI.unmarshalAdvisors(UnmarshallerAPI.java:80)
	gdb.ReportBeanStudent.studentSearchByNameWithDetails(ReportBeanStudent.java:581)
	gdb.ProcessInput.listInfoAboutStudentsinDetail(ProcessInput.java:688)
	gdb.ProcessInput.doPost(ProcessInput.java:116)
	javax.servlet.http.HttpServlet.service(tomcat5-servlet-2.4-api-5.5.23.jar.so)
	javax.servlet.http.HttpServlet.service(tomcat5-servlet-2.4-api-5.5.23.jar.so)

Thanks,vm

java.util.ConcurrentModificationException in Method
org.apache.camel.util.CaseInsensitiveMap.putAll()

Author: markt
Date: Sun Jun  6 21:50:11 2010
New Revision: 952000

URL: http://svn.apache.org/viewvc?rev=952000&view=rev
Log:
Make syncs consistent

Modified:
    tomcat/trunk/java/org/apache/catalina/util/LifecycleBase.java

Modified: tomcat/trunk/java/org/apache/catalina/util/LifecycleBase.java
URL:
http://svn.apache.org/viewvc/tomcat/t...000&view=diff

Author: markt
Date: Mon Aug  2 10:58:23 2010
New Revision: 981451

URL: http://svn.apache.org/viewvc?rev=981451&view=rev
Log:
Javadoc fixes

Modified:
    tomcat/trunk/java/org/apache/catalina/util/LifecycleMBeanBase.java

Modified:
tomcat/trunk/java/org/apache/catalina/util/LifecycleMBeanBase.java
URL:
http://svn.apache.org/viewvc/tomcat/t...451&view=diff

Author: rjung
Date: Mon Aug  2 12:44:45 2010
New Revision: 981487

URL: http://svn.apache.org/viewvc?rev=981487&view=rev
Log:
Javadocs fix: @Link -> @link

Modified:
    tomcat/trunk/java/org/apache/catalina/startup/ContextConfig.java
    tomcat/trunk/java/org/apache/catalina/util/LifecycleMBeanBase.java

Modified: tomcat/trunk/java/org/apache/catalina/startup/ContextConfig.java
URL:
http://svn.apache.org/viewvc/tomcat/t...487&view=diff

Author: markt
Date: Thu Jun  3 10:02:30 2010
New Revision: 950929

URL: http://svn.apache.org/viewvc?rev=950929&view=rev
Log:
Re-order so it is easier to check all objects are re-cycled

Modified:
    tomcat/trunk/java/org/apache/tomcat/util/http/mapper/MappingData.java

Modified:
tomcat/trunk/java/org/apache/tomcat/util/http/mapper/MappingData.java
URL:
http://svn.apache.org/viewvc/tomcat/t...929&view=diff

Author: rjung
Date: Mon Aug  2 13:08:37 2010
New Revision: 981501

URL: http://svn.apache.org/viewvc?rev=981501&view=rev
Log:
Replace UTF section sign in Javadoc by
HTML entity.

Modified:
    tomcat/trunk/java/org/apache/tomcat/util/bcel/classfile/StackMap.java
   
tomcat/trunk/java/org/apache/tomcat/util/bcel/classfile/StackMapEntry.java
   
tomcat/trunk/java/org/apache/tomcat/util/bcel/classfile/StackMapTable.java
   
tomcat/trunk/java/org/apache/tomcat/util/bcel/classfile/StackMapTableEntry.java

Modified:
tomcat/trunk/java/org/apache/tomcat/util/bcel/classfile/StackMap.java
URL:
http://svn.apache.org/viewvc/tomcat/t...501&view=diff

Author: markt
Date: Sun Jul  4 15:44:45 2010
New Revision: 960348

URL: http://svn.apache.org/viewvc?rev=960348&view=rev
Log:
Revert r958362, r960083, r958406, r960069. r958362 broke the TCK tests and
the other commits were sufficiently tightly coupled to it that it was
easier to revert all of them than try to unpick them.

Removed:
    tomcat/trunk/test/org/apache/catalina/core/TestAsyncListener.java
Modified:
    tomcat/trunk/java/org/apache/tomcat/util/net/JIoEndpoint.java
    tomcat/trunk/webapps/docs/changelog.xml

Modified: tomcat/trunk/java/org/apache/tomcat/util/net/JIoEndpoint.java
URL:
http://svn.apache.org/viewvc/tomcat/t...348&view=diff

Author: pero
Date: Sun Jun 27 11:02:10 2010
New Revision: 958362

URL: http://svn.apache.org/viewvc?rev=958362&view=rev
Log:
Start JioEndpoint timeout thread, to handle timeout a AsyncListener.

Added:
    tomcat/trunk/test/org/apache/catalina/core/TestAsyncListener.java  
(with props)
Modified:
    tomcat/trunk/java/org/apache/tomcat/util/net/JIoEndpoint.java
    tomcat/trunk/webapps/docs/changelog.xml

Modified: tomcat/trunk/java/org/apache/tomcat/util/net/JIoEndpoint.java
URL:
http://svn.apache.org/viewvc/tomcat/t...362&view=diff

Author: markt
Date: Thu Jun  3 07:50:51 2010
New Revision: 950904

URL: http://svn.apache.org/viewvc?rev=950904&view=rev
Log:
Fix an Eclipse nag

Modified:
    tomcat/trunk/java/org/apache/tomcat/util/http/FastHttpDateFormat.java

Modified:
tomcat/trunk/java/org/apache/tomcat/util/http/FastHttpDateFormat.java
URL:
http://svn.apache.org/viewvc/tomcat/t...904&view=diff

I am highly interessed why does my fix is wrong :-)

Is my fix really wrong, you can revert my checkin. Today I present the  
new Tomcat 7 release at Java User Forum Stuttgart (Germany).

Many thanks,

Peter

Am 01.07.2010 um 08:20 schrieb jean-frederic clere:

 On 06/30/2010 09:15 PM, Peter Roßbach wrote:
> Hi Jean Frederic!
>
> Why does my change break the TCK? Is the current 12/09 servlet
spec  
> not
> correct? How must the async timeout functionalty work?
>
> Can you comment my other findings, please?

 I will have a look today to the stuff.

 Cheers

 Jean-Frederic

Author: markt
Date: Thu Jul 22 11:51:00 2010
New Revision: 966596

URL: http://svn.apache.org/viewvc?rev=966596&view=rev
Log:
Poll time and wait are both in milliseconds

Modified:
    tomcat/trunk/java/org/apache/tomcat/util/net/AprEndpoint.java

Modified: tomcat/trunk/java/org/apache/tomcat/util/net/AprEndpoint.java
URL:
http://svn.apache.org/viewvc/tomcat/t...596&view=diff

Author: markt
Date: Tue Jul 27 20:27:16 2010
New Revision: 979852

URL: http://svn.apache.org/viewvc?rev=979852&view=rev
Log:
Only need to wait a single pollTime, not one pollTime for each poller.

Modified:
    tomcat/trunk/java/org/apache/tomcat/util/net/AprEndpoint.java

Modified: tomcat/trunk/java/org/apache/tomcat/util/net/AprEndpoint.java
URL:
http://svn.apache.org/viewvc/tomcat/t...852&view=diff

Author: markt
Date: Tue Jul 27 21:05:16 2010
New Revision: 979872

URL: http://svn.apache.org/viewvc?rev=979872&view=rev
Log:
Code clean-up
Remove deps on o.a.catalina
Fix a couple of Eclipse nags

Modified:
    tomcat/trunk/java/org/apache/tomcat/util/net/AprEndpoint.java

Modified: tomcat/trunk/java/org/apache/tomcat/util/net/AprEndpoint.java
URL:
http://svn.apache.org/viewvc/tomcat/t...872&view=diff

Author: markt
Date: Sat Jul 31 14:02:29 2010
New Revision: 981061

URL: http://svn.apache.org/viewvc?rev=981061&view=rev
Log:
Revert r966596 - pollTime is in microseconds, wait is in milliseconds
Add an additional wait that prevents a JVM crash on shutdown detected in
TestAsyncContextImpl tests 

Modified:
    tomcat/trunk/java/org/apache/tomcat/util/net/AprEndpoint.java

Modified: tomcat/trunk/java/org/apache/tomcat/util/net/AprEndpoint.java
URL:
http://svn.apache.org/viewvc/tomcat/t...061&view=diff