Is there a way to test a reduce class with MRUnit that uses MultipleOutputFormat to write to multiple output files?
Testing multiple outputs with MRUnit
3.8k Views Asked by David Parks At
2
There are 2 best solutions below
0
Géraud
On
MRUnit 1.1.0 has been released in June 2014 (see http://mrunit.apache.org/)
This latest release includes support for MultipleOutputs (see https://issues.apache.org/jira/browse/MRUNIT-13)
Related Questions in JAVA
- I need the BIRT.war that is compatible with Java 17 and Tomcat 10
- Creating global Class holder
- No method found for class java.lang.String in Kafka
- Issue edit a jtable with a pictures
- getting error when trying to launch kotlin jar file that use supabase "java.lang.NoClassDefFoundError"
- Does the && (logical AND) operator have a higher precedence than || (logical OR) operator in Java?
- Mixed color rendering in a JTable
- HTTPS configuration in Spring Boot, server returning timeout
- How to use Layout to create textfields which dont increase in size?
- Function for making the code wait in javafx
- How to create beans of the same class for multiple template parameters in Spring
- How could you print a specific String from an array with the values of an array from a double array on the same line, using iteration to print all?
- org.telegram.telegrambots.meta.exceptions.TelegramApiException: Bot token and username can't be empty
- Accessing Secret Variables in Classic Pipelines through Java app in Azure DevOps
- Postgres && statement Error in Mybatis Mapper?
Related Questions in HADOOP
- Can anyoone help me with this problem while trying to install hadoop on ubuntu?
- Hadoop No appenders could be found for logger (org.apache.hadoop.mapreduce.v2.app.MRAppMaster)
- Top-N using Python, MapReduce
- Spark Driver vs MapReduce Driver on YARN
- ERROR: org.apache.hadoop.fs.UnsupportedFileSystemException: No FileSystem for scheme "maprfs"
- can't write pyspark dataframe to parquet file on windows
- How to optimize writing to a large table in Hive/HDFS using Spark
- Can't replicate block xxx because the block file doesn't exist, or is not accessible
- HDFS too many bad blocks due to "Operation category WRITE is not supported in state standby" - Understanding why datanode can't find Active NameNode
- distcp throws java.io.IOException when copying files
- Hadoop MapReduce WordPairsCount produces inconsistent results
- If my data is not partitioned can that be why I’m getting maxResultSize error for my PySpark job?
- resource manager and nodemanager connectivity issues
- ERROR flume.SinkRunner: Unable to deliver event
- converting varchar(7) to decimal (7,5) in hive
Related Questions in MAPREDUCE
- Hadoop No appenders could be found for logger (org.apache.hadoop.mapreduce.v2.app.MRAppMaster)
- Top-N using Python, MapReduce
- Spark Driver vs MapReduce Driver on YARN
- Hadoop MapReduce WordPairsCount produces inconsistent results
- Hadoop MiniCluster Web UI
- Java lang runtime exception or jar file does not exist error
- basic python but wierd problem in hadoop-stream text value changes in MapReduce
- Hadoop is writing to file using context.write() but output file turns out empty
- Error while executing load_summarize_chain with custom prompts
- Apache Crunch Job On AWS EMR using Oozie
- Hadoop MapReducee WordCountLength - Type mismatch in key from map: expected org.apache.hadoop.io.Text, received org.apache.hadoop.io.IntWritable
- Error: java.io.IOException: wrong value class: class org.apache.hadoop.io.Text is not class org.apache.hadoop.io.FloatWritable
- I'm having trouble with a map reduce script
- No Output for MapReduce Program even after successful job completion on Cloudera VM
- Context.write method returns wrong result in Mapreduce java
Related Questions in REDUCERS
- How can I read the data directly after dispatch action has mutated the state in react
- how to manage complex redux state for different async calls?
- List count array by name attribute dynamics information
- Attempted import error: './redux/reducers/configureStore' does not contain a default export (imported as 'configureStore')
- Redux: Reduced - How to avoid object is not extensible error during the recursion on nested array?
- React reducer wrong increment number
- Getting error "state" is undefined in stateprovider and reducer using context API react, here is my code
- React Reducer - Add elements to existing element
- I'm getting a list of lists in my reducer output rather than a paired value and I am unsure of what to change in my code
- can't console log state from reducer function?
- How to update state ( initial State ) objects in reducer when using immer?
- How to update/edit with Context API
- how to resolve this error "ERROR TypeError: Cannot delete property '0' of [object Array]"
- How to define a function in javascript reduce function?
- error at react redux combinereducer with typescript
Related Questions in MRUNIT
- mrunit - Using mrunit.mapreduce.MapDriver not callling customised Record Reader
- MapReduce Mrunit error
- MRUnit for Parquet
- MRUnit test for testing hadoop map program error
- java.lang.ClassCastException: org.apache.hadoop.io.serializer.WritableSerialization cannot be cast to org.apache.hadoop.io.serializer.Serialization
- Mrunit: how to set value comparator for MultiOutput test
- Why mrunit 1.1.0 jar is not available in Maven central repository
- java.lang.VerifyError: Expecting a stackmap frame at branch, when using PowerMockRunner
- Tweaking an output before testing using MRUnit
- Testing for a specific exception in MRUnit
- MRUnit Context object returning empty configuration
- What's the successor of mrunit?
- MR-Unit vs JUnit for unit testing
- Hadoop Mrunit throughing exceptions
- MRUnit test giving NULLPOINTER exception while writing to HDFS using MULTIPLEOUTPUTS
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular # Hahtags
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
It looks like support for
MultipleOutputsis still work in progress in the MRUnit Jira.That being said, I found someone who implemented his own drivers subclassing MRUnit's
MapReduceDriverto make it work withMultipleOutputshere, hope that helps.