on_update_failure is not zero with Eventing single function-N1QL perf tests

With latest 7.2.4-7015 build
We are seeing thput numbers are dropped by 70-90%
We are getting 
on_update_failure is not zero
https://perf.jenkins.couchbase.com/job/themis/25332/console 
logs:{}

https://s3-us-west-2.amazonaws.com/perf-artifacts/jenkins-themis-25332/172.23.96.16.zip

https://s3-us-west-2.amazonaws.com/perf-artifacts/jenkins-themis-25332/172.23.96.17.zip

https://s3-us-west-2.amazonaws.com/perf-artifacts/jenkins-themis-25332/172.23.96.20.zip

https://s3-us-west-2.amazonaws.com/perf-artifacts/jenkins-themis-25332/172.23.96.23.zip

https://s3-us-west-2.amazonaws.com/perf-artifacts/jenkins-themis-25332/172.23.97.177.zip

Node  service configs:
**
172.23.96.16:kv,n1ql
172.23.96.17:kv,n1ql
172.23.96.20:kv,n1ql
172.23.97.177:eventing
172.23.96.23:index