Start and Stop the Platform

See Admin Settings Page in the Admin Guide.

Command Line

Start

Command:

service trifacta start

Verify operations

Steps:

1. Check logs for errors:

   /opt/trifacta/logs/*.log

    

   1. You can also access logs through the Designer Cloud® application for each service. See System Services and Logs in the Admin Guide. 

2. Login to the Designer Cloud application. If available, perform a simple transformation operation. See  Login.

3. Run a simple job. See Verify Operations in the Admin Guide.

Restart

Command:

service trifacta restart

When the login page is available, the system has been restarted. See Login.

Stop

Command:

service trifacta stop

Configure Platform Restart

By default, the Designer Cloud Powered by Trifacta platform waits for a period of time for the Designer Cloud application to restart before re-activating the user interface. As needed, you can review and modify the following settings, which define the parameters of these restarts.

Steps:

1. You can apply this change through the Admin Settings Page (recommended) or trifacta-conf.json. For more information, see Platform Configuration Methods.

2. Locate the following parameters, and adjust settings as needed:
   
   

   "webapp.waitForRestart.initialWait": 45000,
   "webapp.waitForRestart.intervalWait": 5000,
   "webapp.waitForRestart.maxChecks": 60,

   Setting	Description
   webapp.waitForRestart.initialWait	Number of seconds to wait for the Designer Cloud application before checking it for a successful restart. Default is 45000 milliseconds (45 seconds).
   webapp.waitForRestart.intervalWait	After the initial wait period has failed, this value is the number of seconds to wait before checking the Designer Cloud application for a successful restart. Default is 5000 milliseconds (5 seconds).
   webapp.waitForRestart.maxChecks	Total number of checks for a successful restart before failing the Designer Cloud application.

3. Save your changes and restart the application.

Troubleshooting

You can verify operations of WebHDFS. Command:

curl -i  "http://<hadoop_node>:<port_number>/webhdfs/v1/?op=LISTSTATUS&user.name=trifacta"

Error - "ImportError: No module named pkg_resources" error in supervisord

When you start the platform for the first time, you may receive the following error:

Traceback (most recent call last):
File "/usr/local/bin/supervisord", line 5, in <module>
from pkg_resources import load_entry_point
ImportError: No module named pkg_resources

This error occurs when the supervisord process is starting. The  Designer Cloud Powered by Trifacta platform fails to complete startup.

Solution:

This issue is caused by a missing package for supervisord. The simplest solution is to install the Python setup tools on the Alteryx node. Commands are listed below.

CentOS/RHEL:

yum install python-setuptools

Ubuntu:

wget https://bootstrap.pypa.io/ez_setup.py -O - | python

After installation is complete, restart the platform.

Error - SequelizeConnectionRefusedError: connect ECONNREFUSED

If you have attempted to start the platform after an operating system reboot, you may receive the following error message, and the platform start fails to complete: 

2016-10-04T14:03:17.883Z - error: [ENVIRONMENT] Environment Sanity Test Failed
2016-10-04T14:03:17.883Z - error: [ENVIRONMENT] Exception Type: Error
2016-10-04T14:03:17.883Z - error: [ENVIRONMENT] Exception Message: SequelizeConnectionRefusedError: connect ECONNREFUSED

Solution:

This error can occur when the operating system is restarted. Please execute the following commands to check the PostgreSQL configuration and restart the databases. 

chkconfig postgresql-12 on

Then, restart the platform as normal. 

service trifacta restart