Getting consistent hashing balancer requires more entries to add the number of hosts requested, please increase the wheel size.

We are using Kong 2.8.1 and KongIngress 2.2.1 in openshift OKD environment.
Recently we started seeing the below critical message from kong. During this time our requests are getting failed.
We set the “Slots” value to 65536(max) which didn’t help. We have only one service which is having more than 6 target.
Remaining services are having max of 4 targets. We set this slots value in KongIngress as we don’t have direct upstream.
Because the targets are outside of cluster environment. Even after setting the Slots value to maximum still we are getting into this issue.
2022/09/21 05:10:05 [notice] 961#0: *34017514 [lua] init.lua:260: purge(): [DB cache] purging (local) cache, client: 127.0.0.1, server: kong_admin, request: “POST /config?check_hash=1 HTTP/1.1”, host: “127.0.0.1:8002”
2022/09/21 05:10:05 [notice] 961#0: *34017514 [lua] init.lua:260: purge(): [DB cache] purging (local) cache, client: 127.0.0.1, server: kong_admin, request: “POST /config?check_hash=1 HTTP/1.1”, host: “127.0.0.1:8002”
2022/09/21 05:10:06 [crit] 959#0: *34017576 [lua] consistent_hashing.lua:108: afterHostUpdate(): consistent hashing balancer requires more entries to add the number of hosts requested, please increase the wheel size, context: ngx.timer
2022/09/21 05:10:06 [crit] 959#0: *34017576 [lua] consistent_hashing.lua:108: afterHostUpdate(): consistent hashing balancer requires more entries to add the number of hosts requested, please increase the wheel size, context: ngx.timer
2022/09/21 05:10:06 [crit] 959#0: *34017576 [lua] consistent_hashing.lua:108: afterHostUpdate(): consistent hashing balancer requires more entries to add the number of hosts requested, please increase the wheel size, context: ngx.timer
127.0.0.1 - - [21/Sep/2022:05:10:10 +0000] “POST /config?check_hash=1 HTTP/1.1” 201 641388 “-” “Go-http-client/1.1”

apiVersion: configuration.konghq.com/v1
kind: KongIngress
metadata:
name: kongingress-xxxxx-apikey-header
namespace: xxxxx
proxy:
connect_timeout: 3000
read_timeout: 300000
upstream:
algorithm: consistent-hashing
hash_on: header
hash_on_header: x-apikey
hash_fallback: ip
slots: 65536
healthchecks:
active:
timeout: 3
concurrency: 1
healthy:
interval: 0
successes: 1
http_statuses: [ 200, 302 ]
http_path: /health/simple
type: https
https_verify_certificate: false
unhealthy:
interval: 10
http_failures: 0
timeouts: 0
tcp_failures: 0
http_statuses: [ 429, 404, 500, 501, 502, 503, 504, 505 ]
passive:
healthy:
successes: 1
http_statuses: [ 200, 201, 202, 203, 204, 205, 206, 207, 208, 226, 300, 301, 302, 303, 304, 305, 306, 307, 308 ]
unhealthy:
http_failures: 1
timeouts: 1
tcp_failures: 1
http_statuses: [ 429, 500, 503 ]