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У меня есть кластер MKE с тремя узлами менеджера. etcd выдает следующие предупреждения

 2021-12-06 10:03:10.624622 W | etcdserver: read-only range request "key:"/registry/health" " with result "range_response_count:0 size:8" took too long (157.50303ms) to execute 2021-12-06 10:03:24.987502 W | etcdserver: read-only range request "key:"/registry/services/endpoints/kube-system/kube-scheduler" " with result "range_response_count:1 size:442" took too long (127.110289ms) to execute 2021-12-06 10:03:26.302979 W | etcdserver: request "header:lt;ID:16726225580315543268 username:"system:ucp:v2d7rih1ql0sztk06dnu37a58" auth_revision:1 gt; txn:lt;compare:lt;target:MOD key:"/registry/leases/kube-system/kube-scheduler" mod_revision:352278653 gt; success:lt;request_put:lt;key:"/registry/leases/kube-system/kube-scheduler" value_size:218 gt;gt; failure:lt;gt;gt;" with result "size:22" took too long (101.390612ms) to execute 2021-12-06 10:03:26.498919 W | etcdserver: read-only range request "key:"/registry/health" " with result "range_response_count:0 size:8" took too long (141.572923ms) to execute 2021-12-06 10:03:37.589988 W | etcdserver: read-only range request "key:"/registry/leases/kube-system/kube-scheduler" " with result "range_response_count:1 size:296" took too long (141.997165ms) to execute 2021-12-06 10:04:03.211705 W | etcdserver: read-only range request "key:"/registry/networkpolicies/" range_end:"/registry/networkpolicies0" count_only:true " with result "range_response_count:0 size:8" took too long (108.336554ms) to execute 2021-12-06 10:04:08.707179 W | etcdserver: read-only range request "key:"/registry/health" " with result "range_response_count:0 size:8" took too long (102.900861ms) to execute 2021-12-06 10:04:09.145791 W | etcdserver: read-only range request "key:"/registry/leases/kube-system/kube-scheduler" " with result "range_response_count:1 size:296" took too long (253.282239ms) to execute 2021-12-06 10:04:09.834741 W | etcdserver: read-only range request "key:"/registry/services/endpoints/kube-system/kube-controller-manager" " with result "range_response_count:1 size:460" took too long (149.503672ms) to execute 2021-12-06 10:04:25.053962 W | etcdserver: read-only range request "key:"/registry/persistentvolumeclaims/tme-ns-cms-prd/tme-pvc-tmeestore" " with result "range_response_count:1 size:1201" took too long (209.981256ms) to execute 2021-12-06 10:05:30.778453 W | etcdserver: read-only range request "key:"/registry/services/endpoints/kube-system/kube-controller-manager" " with result "range_response_count:1 size:460" took too long (253.111751ms) to execute  

Мы уже увеличили количество процессоров и памяти на этих трех узлах управления без какого-либо влияния.

Я полагаю, что ввод-вывод диска очень важен и может привести к этим предупреждениям, если у нас будет высокая задержка?

Может ли сеть между тремя экземплярами etcd также вызвать это? Или эти запросы являются чисто локальными ?