For every cycle of this add-on it creates a /tmp/httplib2_merged_certificates_xxxxx.crt file where xxxxx is a unique number. The file always contains the same 243 root & intermediate certificates.
After about 1200 times cycling through the add-on stops working. When I clean up these files in /tmp, the add-on continues to work.
Other than a cron job to clean these up periodically does someone have a fix for this.
FYI, using 2.25.10 version of the TA on Splunk Heavy Forwarder 6.6.5.
It turns out that these .crt files aren't related to this add-on as I first suspected. Uninstalled the add-on and the .crt files continue to collect.
View solution in original post
Also, if it matters at all Ubuntu 16.04 and Splunk is running as Splunk user (not root). Confirmed that the .crt files belong to Splunk user, so not an access issue.