Docube

Not able to invite users to access secure docube

Do the following changes:
File: com.option3.docube.cfg
Path: /opt/docube/apache-karaf-4.0.6/etc
Modifications:
docube.mail.smtp=true
docube.mail.hostName=smtp.gmail.com
docube.mail.port=587
docube.mail.username=mailtest.option3@gmail.com
docube.mail.password=Option#123
docube.mail.enableSslOnconnect=true

Once these changes are done, restart karaf by following below steps.
Path: /opt/docube/
commands:
./apache-karaf-4.0.6/bin/status
./apache-karaf-4.0.6/bin/stop
./apache-karaf-4.0.6/bin/start

Attempted to send a message when connection is no longer valid

Cause: This error occurs when the Drill process has lost connection with the Karaf process.

Solution:

• To make a new connection from Drill to Karaf, restart both the Karaf and the Drill processes.
• Login to Docube Server using putty or equivalent and switch to 'docube-usr'.
• Execute the following commands to stop the Karaf and the Drill processes:
  • Go to the Docube mount point.
cd {mount-path}/Docube-Packages
  • Stop the Karaf process.
./apache-karaf-x.x.x/bin/stop
  • Stop the Drill process.
./apache-drill-x.x.x/bin/drillbit.sh stop
• Execute the following commands to start the Karaf and the Drill processes:
  • Go to the Docube mount point.
cd {mount-path}/Docube-Packages
  • Start the Drill process.
    • Start the Drill process:
/apache-drill-x.x.x/bin/drillbit.sh start
    • Verify if the process has successfully started:
./apache-drill-x.x.x/bin/drillbit.sh status
  • Start the Karaf process.
    • Start the Drill process:
./apache-karaf-x.x.x/bin/start
    • Verify if the process has successfully started:
./apache-karaf-x.x.x/bin/status
• Below are the Drill and Karaf logs path:
  • Drill log path: *{mount-path}/Docube-Packages/apache-drill-x.x.x/log/*
  • Karaf log path: *{mount-path}/Docube-Packages/apache-karaf-x.x.x/data/log/*

Docube Spark submission is falling “Error: Job submission failed”

Cause: This error is expected in the front end of Docube when the Apache Spark process is down, is unable to start or is hung.

Solution:

• Login to Docube Server using putty or equivalent and switch to 'docube-usr'.
• Execute the following commands to restart the Apache Spark process:
  • Verify if the Apache spark process is running in the Docube Server:
ps -aux|grep spark
  • Stop the spark process (Skip this step if there are no spark processes running.)
{mount-path}/Docube-Packages/spark-x.x.x-bin-hadoop2.7/sbin/stop-all.sh
  • Start the Apache Spark process.
{mount-path}/Docube-Packages/spark-x.x.x-bin-hadoop2.7/sbin/start-all.sh