netutils | Network utilities Python library , and network schemes | TCP library

I am trying to configure SELinux on Poky Linux distro.

I am connecting to the board both on serial and ssh.

Launching ping and ifconfig on ssh the board prints nothing, whereas the same command on serial is printing the correct one.

At first, ping was completely disabled, so I had to patch the netutils SELinux policy (now works correctly).

The command journalctl -xe | grep "denied" shows no "denied" for ping neither ifconfig.

How can I fix this issue? Or where should I look further? Maybe a /dev/pts error?

The Liquibase install comes with an examples directory you can use to learn about different commands. The examples use a H2 database with a web console on port 9090. Unfortunately port 9090 is not available.

I'm asking how can I change the web-conole port used with the example H2 database started by the script:

• start-h2

The port appears to be specified by the Liquibase liquibase.example.StartH2Main module itself. H2 doesn't seem influenced by changes to: $HOME/.h2.server.properties ...

Does anybody may give someone advice for me how realise DataStage connection?
API Link: https://www.ibm.com/docs/en/iis/11.3?topic=interfaces-infosphere-datastage-development-kit
I try include the api but when I run the program I get error: 0xc000007b
Where I made a mistake?
Thanks for anwer!

main.cpp

I have written a simple map reduce job to perform KMeans clustering on some points.

However, when running the following command on Windows 10 cmd:

I`m trying to run my cluster with Kerberos. Before hdfs, yarn and spark worked correctly. After setting up kerberos, I can only run hdfs because yarn is going to crush after 15 minutes with an error. I have tried different configurations with no result. Master node do not have any logs about slave node. Nodemanager run just for 15 minutes but do not show on yarn master list.

I do not understand why you can use kinit or hdfs run with no problem, but yarn seems to not connect the resource manager.

Log:

So this error is a weird one...

I'm using EXE4J 6 to build a .exe file for my JavaFX Application. This has worked with no issues through Java version 13.0.1. I recently upgraded my environment to use Java 14.0.1 and now I get the following stacktrace whenever I try to run my application through exe:

I have a static http request helper in ASP.NET

Is it thread safe?

Will it cause a memory leak?

Will the singleton model be a better choice?
PS: In this case, I don't need extend classes or implement interfaces.

Will this code have a bad effect on the program?

Here is the code.Thank you for your help.

I am currently experimenting with Apache Spark. Everything seems to be working fine in that all the various components are up and running (i.e. HDFS, Spark, Yarn, etc). There do not appear to be any errors during the startup of any of these. I am running this in a Vagrant VM and Spark/HDFS/Yarn are dockerized.

tl;dr: Submitting an job via Yarn results in There are 1 datanode(s) running and 1 node(s) are excluded in this operation.

Submitting my application with: $ spark-submit --master yarn --class org.apache.spark.examples.SparkPi --driver-memory 512m --executor-memory 512m --executor-cores 1 /Users/foobar/Downloads/spark-3.0.0-preview2-bin-hadoop3.2/examples/jars/spark-examples_2.12-3.0.0-preview2.jar 10

Which results in the following:

I'm a student of big data. I'm coming to you today for a question about the high availability of HDFS using Zookeeper. I am aware that there has already been bcp of topic dealing with this subject, I have read a lot of them already. It's already been 15 days that I've been browsing the forums without finding what I'm looking for (maybe I'm not looking in the right place too ;-) )

I have followed the procedure three times here: https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.html.

I may have done everything right, but when I kill one of my namenodes, none of them take over.

My architecture is as follows: - 5 VM - VM 1,3 and 5 are namenodes - VMs 1 to 5 are datanodes.

I launched my journalnodes, I started my DFSZKFailoverController, I formatted my first namenode, I copied with -bootstrapStandby the configuration of my first namenode to the 2 others and I started my cluster.

Despite all this and no obvious problems in the ZKFC and namenode logs, I can't get a namenode to take over a dying namenode.

Does anyone have any idea how to help me?

Many thanks for your help :)

zoo.cfg