KB88892
Published: May 5, 2020
Revision: 2.0

GRV-EPIC-PR1 may lock up while running certain Node-RED nodes


Applies To:

Firmware for GRV-EPIC-PR1

Versions Affected:

All versions to .1.5.0

Resolved In Version:

2.0.0


Symptoms:

You may observe lock-up symptoms like the following:

  • GRV-EPIC-PR1 is unresponsive.
  • The LEDs on groov I/O modules all turn red.
  • Ethernet communication ceases.
If the groov EPIC processor is running Node-RED flows when these symptoms appear, it's possible that a third-party node installed on your processor has a memory leak. To determine if this might be the cause of these issues:
  1. Log into your groov EPIC processor with an ID that has administrator privileges.
  2. From the groov Manage Home page, click Node-RED.
  3. Record the value on the Memory Usage field.
  4. Wait 24 hours.
  5. Return to the groov Manage Node-RED page (steps 1 and 2).
  6. Compare the value in the Memory Usage field with the value you recorded from step 3.
If the difference is significant, there may be a memory leak that is causing your GRV-EPIC-PR1 to display "lock-up" symptoms.

Workaround:

Monitor Node-RED memory usage. If it starts to increase above typical, then restart Node-RED.

Resolution:

Opto 22 has resolved this issue.

Questions?

Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com


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