OOM Issue for Activity Page in Chrome

[bsislow]

we have a busy instance (regularly ~1300 TPS; INSERT-heavy) where we occasionally see the following in Chrome on the Activity tab/page:

reloading the page fixes the issue for some time and then it recurs eventually if the page is left open.

temboard and temboard agent logs don't indicate anything around the time of the issue except for my laptop's IP address when failing:

2022-09-26 07:43:18,080 temboardui[12903]: [tornado.general] WARNING: SSL Error on 10 ('xxx.xxx.xxx.xxx', xxxxx): [SSL: SSLV3_ALERT_CERTIFICATE_UNKNOWN] sslv3 alert certificate unknown (_ssl.c:618)
2022-09-26 07:43:18,080 temboardui[12903]: [autossl] ERROR: SSLError: [SSL: SSLV3_ALERT_CERTIFICATE_UNKNOWN] sslv3 alert certificate unknown (_ssl.c:618)