How Do You Troubleshoot the Error “intx ThreadPriorityPolicy=42 is outside the allowed range [ 0 … 1 ] “?

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Problem scenario
You try to start Cassandra but you get this error:

“[0.000s][warning][gc] -Xloggc is deprecated. Will use -Xlog:gc:./bin/../logs/gc.log instead.
intx ThreadPriorityPolicy=42 is outside the allowed range [ 0 … 1 ]
Improperly specified VM option ‘ThreadPriorityPolicy=42’
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.”

Possible solution #1
Migrate to Linux SUSE or a Red Hat family version of Linux (e.g.,

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How Do You Enter Data into a Cassandra Table?

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Problem scenario
You want to insert data into a Cassandra table.  How do you do this?

Solution
Prerequisites
Install and configure Cassandra.  If you do not know how, click on this link and go to “Possible Solution #5” at the bottom to determine the distribution of Linux that you have.

Procedures
1.  Create the table with this command:
CREATE TABLE contint(
  

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How Do You Use Amazon DynamoDB?

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Problem scenario
You want to use a NoSQL solution from a public cloud provider. How do you deploy Amazon DynamoDB to try it out?

Solution
1.  Log into AWS.
2.  In the web browser, go to https://console.aws.amazon.com/dynamodb/home
3.  Click “Create table”
4.  Enter the fields as you find appropriate.  It should be self-explanatory.  Click “Create”.
5.  You can now create items in the table,

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How Do You Troubleshoot the Message “/usr/bin/mongodb/bin/mongod: error while loading shared libraries: libcrypto.so.1.0.0: cannot open shared object file: No such file or directory”?

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Problem scenario
You are using a Red Hat derivative of Linux (e.g., CentOS/RHEL/Fedora).  When trying to run a mongod command you receive this message: “/usr/bin/mongodb/bin/mongod: error while loading shared libraries: libcrypto.so.1.0.0: cannot open shared object file: No such file or directory”.

What should you do?

Solution
Get different installation media.  If you try to install a .tgz file for Ubuntu on CentOS/RHEL/Fedora, you will get this message. 

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How Do You Troubleshoot the Message “error while loading shared libraries: libssl.so.1.0.0: cannot open shared object file: No such file or directory”?

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Problem scenario
You are using a Red Hat derivative of Linux (e.g., CentOS/RHEL/Fedora).  When trying to run a MongoDB command you receive this message: “error while loading shared libraries: libssl.so.1.0.0: cannot open shared object file: No such file or directory”

What should you do?

Solution
Get different installation media.  If you try to install a .tgz file for Ubuntu on CentOS/RHEL/Fedora, you will get this message. 

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How Do You Install MongoDB on a Debian/Ubuntu Linux Server?

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Problem scenario
You want to install MongoDB on an Ubuntu/Debian Linux server.  How do you do this?

Solution
1.  If you know your distribution of Linux, go to step #2.  Otherwise try this command:  cat /etc/*-release

2.  Do one of the following that corresponds to your distribution of Linux:

On Debian:  sudo apt-get -y install mongodb mongodb-server

On Ubuntu 16.x or Ubuntu 17.x run these two commands (that may span three lines):

curl http://repo.mongodb.org/apt/ubuntu/dists/xenial/mongodb-org/3.6/multiverse/binary-amd64/mongodb-org-server_3.6.4_amd64.deb >

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