If PAC Control strategy contains HTTP Get/Post commands with SSL, over time, PAC controller/control engine may become unresponsive

Applies To:

Firmware for the following groov EPICs:

GRV-EPIC-PR1
GRV-EPIC-PR2

Firmware for the following SNAP PACs:

SNAP-PAC-S1, SNAP-PAC-S1-FM, SNAP-PAC-S1-W
SNAP-PAC-S2, SNAP-PAC-S2-W
SNAP-PAC-R1, SNAP-PAC-R1-FM, SNAP-PAC-R1-W, SNAP-PAC-R1-B
SNAP-PAC-R2, SNAP-PAC-R2-FM, SNAP-PAC-R2-W

Firmware for SoftPAC

Versions Affected:

For groov EPICs: All versions prior to 3.5.0
For SNAP PACs: All versions prior to R10.5g
For SoftPAC: All versions

Resolved In Version:

For groov EPICs: 3.5.0
For SNAP PACs: R10.5g

Symptoms:

If your PAC Control strategy contains HTTP Get or HTTP Post commands with SSL as the security mode, then over time, you may observe the following:

For groov EPICs, various groov Manage services (including the PAC Controller) restart.
For SNAP PACs and SoftPAC, control engine errors or failures.

The symptoms appear with a frequency corresponding to the frequency of the HTTP Get and HTTP Post commands: the more frequently the commands are called, the more frequently the symptoms appear.

Resolution:

Opto 22 has resolved this issue and will include the fix in an upcoming release.

Questions?

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

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