wordcount | Hadoop MapReduce word counting with Java
kandi X-RAY | wordcount Summary
kandi X-RAY | wordcount Summary
Hadoop MapReduce word counting with Java. "input_folder" and "output_folder" are folders on HDFS.
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Trending Discussions on wordcount
QUESTION
I am using two instances of tinyMCE in shiny. I would like to save the content of both of these instances as a csv file using a single action button. I can use two action button but that defeats my goal. Not really great with javascript and how to make it work in R. I was able to source some code to save the output of first instance. Following is a working example.
...ANSWER
Answered 2021-Jun-13 at 13:37You can concatenate the input from two text in onclick
-
QUESTION
Say that I have a Map
containing entries and I would like to select the first entry with the highest value, see the example below:
ANSWER
Answered 2021-Jun-12 at 19:40You can use something like this:
QUESTION
I had used the below command in GCP Shell terminal to create a project wordcount
...ANSWER
Answered 2021-Jun-10 at 21:48I'd suggest finding an archetype for creating MapReduce applications, otherwise, you need to add hadoop-client
as a dependency in your pom.xml
QUESTION
I have included django-tinymce module in my django 3.1 project. However, the tinymce editor disappeared from my pages and I don't know why. When I run the project in my localhost I get a 404 on init_tinymce.js, a folder that is not in my project and not specified in the django-tinymce project.
I hardly touched anything but it suddenly did not show on my pages. Here is the log from my console:
...ANSWER
Answered 2021-Jun-09 at 06:13If you don't specifically need to change the default TINYMCE_JS_URL
and TINYMCE_JS_ROOT
settings, don't set them in your project. Did you include 'tinymce' in your INSTALLED_APPS
?
QUESTION
ANSWER
Answered 2021-Jun-10 at 03:09Application resources will become embedded resources by the time of deployment, so it is wise to start accessing them as if they were, right now. An embedded-resource must be accessed by URL rather than file. See the info. page for embedded resource for how to form the URL.
Thanks for your work, work with
getResource
. Here is the working code
QUESTION
I am using the WordCountProg from the tutorial on https://www.tutorialspoint.com/apache_flink/apache_flink_creating_application.htm . The code is as follows:
WordCountProg.java
...ANSWER
Answered 2021-Jun-03 at 14:34If using minikube you need to first mount the volume using
QUESTION
I got this error when trying to run Spark Streaming to read data from Kafka, I searched it on google and the answers didn't fix my error.
I fixed a bug here Exception in thread "main" java.lang.NoClassDefFoundError: scala/Product$class ( Java) with the answer of https://stackoverflow.com/users/9023547/chandan but then got this error again.
This is terminal when I run project :
...ANSWER
Answered 2021-May-31 at 19:33The answer is the same as before. Make all Spark and Scala versions the exact same. What's happening is kafka_2.13
depends on Scala 2.13, and the rest of your dependencies are 2.11... Spark 2.4 doesn't support Scala 2.13
You can more easily do this with Maven properties
QUESTION
I run a Spark Streaming program written in Java to read data from Kafka, but am getting this error, I tried to find out it might be because my version using scala or java is low. I used JDK version 15 and still got this error, can anyone help me to solve this error? Thank you.
This is terminal when i run project :
...ANSWER
Answered 2021-May-31 at 09:34Spark and Scala version mismatch is what causing this. If you use below set of dependencies this problem should be resolved.
One observation I have (which might not be 100% true as well) is if we have spark-core_2.11
(or any spark-xxxx_2.11) but scala-library version is 2.12.X
I always ran into issues. Easy thing to memorize might be like if we have spark-xxxx_2.11
then use scala-library 2.11.X
but not 2.12.X
.
Please fix scala-reflect
and scala-compile
versions also to 2.11.X
QUESTION
I'm new to Flink. I got a problem when running the local cluster on my computer. Some key software information as follows:
- Flink version: 1.13.0 for Scala 2.11;
- OS: Fedora 34;
- Java version: 16;
- Scala version: 2.11.12.
When I started up the local cluster by command line, everything seems fine from the command line, BUT I could not access the localhost:8081
. It fails to open. Furthermore, the exception comes out when I running the Flink example:
ANSWER
Answered 2021-May-31 at 09:44Flink does not support Java 16. You'll need either Java 8 or 11.
QUESTION
I'm working with List
-- it contais a big text. Text looks like:
ANSWER
Answered 2021-May-30 at 14:38You can't exclude any values that are less than rare
until you have computed the frequency count.
Here is how I might go about it.
- do the frequency count (I chose to do it slightly differently than you).
- then stream the entrySet of the map and filter out values less than a certain frequency.
- then reconstruct the map using a
TreeMap
to sort the words in lexical order
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Install wordcount
You can use wordcount like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the wordcount component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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