Local PV hostpath upgrading from 2.7.0 to 3.4.0

[liyuntang]

1、What are the good plans for Local PV hostpath upgrading from 2.7.0 to 3.3.0
2、What is the impact of Local PV hostpath upgrading from 2.7.0 to 3.3.0 on stock data

Environment:

kubectl get po -n openebs --show-labels

NAME READY STATUS RESTARTS AGE LABELS
maya-apiserver-867994d7dd-5p5zd 1/1 Running 0 32d name=maya-apiserver,openebs.io/component-name=maya-apiserver,openebs.io/version=2.7.0,pod-template-hash=867994d7dd
openebs-admission-server-78458d9ff6-h6fbs 1/1 Running 0 18d app=admission-webhook,openebs.io/component-name=admission-webhook,openebs.io/version=2.7.0,pod-template-hash=78458d9ff6
openebs-localpv-provisioner-548c7dfbf7-mv8hn 1/1 Running 0 32d name=openebs-localpv-provisioner,openebs.io/component-name=openebs-localpv-provisioner,openebs.io/version=2.7.0,pod-template-hash=548c7dfbf7
openebs-ndm-4crhj 1/1 Running 4 231d controller-revision-hash=6cbb7dbf5f,name=openebs-ndm,openebs.io/component-name=ndm,openebs.io/version=2.7.0,pod-template-generation=1
openebs-ndm-4grcj 1/1 Running 2 231d controller-revision-hash=6cbb7dbf5f,name=openebs-ndm,openebs.io/component-name=ndm,openebs.io/version=2.7.0,pod-template-generation=1
openebs-ndm-57qlq 1/1 Running 2 231d controller-revision-hash=6cbb7dbf5f,name=openebs-ndm,openebs.io/component-name=ndm,openebs.io/version=2.7.0,pod-template-generation=1
openebs-ndm-cfqfb 1/1 Running 2 231d controller-revision-hash=6cbb7dbf5f,name=openebs-ndm,openebs.io/component-name=ndm,openebs.io/version=2.7.0,pod-template-generation=1
openebs-ndm-cluster-exporter-5c985f8b77-9zrzw 1/1 Running 0 32d name=openebs-ndm-cluster-exporter,openebs.io/component-name=ndm-cluster-exporter,openebs.io/version=3.0.0,pod-template-hash=5c985f8b77
openebs-ndm-j4wxx 1/1 Running 4 524d controller-revision-hash=6cbb7dbf5f,name=openebs-ndm,openebs.io/component-name=ndm,openebs.io/version=2.7.0,pod-template-generation=1
openebs-ndm-mt2z4 1/1 Running 2 231d controller-revision-hash=6cbb7dbf5f,name=openebs-ndm,openebs.io/component-name=ndm,openebs.io/version=2.7.0,pod-template-generation=1
openebs-ndm-node-exporter-4lv6r 1/1 Running 1 231d controller-revision-hash=6f95f5c64d,name=openebs-ndm-node-exporter,openebs.io/component-name=ndm-node-exporter,openebs.io/version=3.0.0,pod-template-generation=1
openebs-ndm-node-exporter-5v2cf 1/1 Running 1 231d controller-revision-hash=6f95f5c64d,name=openebs-ndm-node-exporter,openebs.io/component-name=ndm-node-exporter,openebs.io/version=3.0.0,pod-template-generation=1
openebs-ndm-node-exporter-c7662 1/1 Running 2 524d controller-revision-hash=6f95f5c64d,name=openebs-ndm-node-exporter,openebs.io/component-name=ndm-node-exporter,openebs.io/version=3.0.0,pod-template-generation=1
openebs-ndm-node-exporter-dnzj4 1/1 Running 1 231d controller-revision-hash=6f95f5c64d,name=openebs-ndm-node-exporter,openebs.io/component-name=ndm-node-exporter,openebs.io/version=3.0.0,pod-template-generation=1
openebs-ndm-node-exporter-fcf4m 1/1 Running 2 231d controller-revision-hash=6f95f5c64d,name=openebs-ndm-node-exporter,openebs.io/component-name=ndm-node-exporter,openebs.io/version=3.0.0,pod-template-generation=1
openebs-ndm-node-exporter-pl24h 1/1 Running 1 231d controller-revision-hash=6f95f5c64d,name=openebs-ndm-node-exporter,openebs.io/component-name=ndm-node-exporter,openebs.io/version=3.0.0,pod-template-generation=1
openebs-ndm-node-exporter-zrtvm 1/1 Running 1 231d controller-revision-hash=6f95f5c64d,name=openebs-ndm-node-exporter,openebs.io/component-name=ndm-node-exporter,openebs.io/version=3.0.0,pod-template-generation=1
openebs-ndm-operator-67876b4dc4-n9dm7 1/1 Running 0 32d name=openebs-ndm-operator,openebs.io/component-name=ndm-operator,openebs.io/version=2.7.0,pod-template-hash=67876b4dc4
openebs-ndm-wv496 1/1 Running 2 231d controller-revision-hash=6cbb7dbf5f,name=openebs-ndm,openebs.io/component-name=ndm,openebs.io/version=2.7.0,pod-template-generation=1
openebs-provisioner-54c6dbf8bb-sz4tl 1/1 Running 3 32d name=openebs-provisioner,openebs.io/component-name=openebs-provisioner,openebs.io/version=2.7.0,pod-template-hash=54c6dbf8bb
openebs-snapshot-operator-d9855ff67-5mg25 2/2 Running 0 32d name=openebs-snapshot-operator,openebs.io/component-name=openebs-snapshot-operator,openebs.io/version=2.7.0,pod-template-hash=d9855ff67

kubectl version

Client Version: version.Info{Major:"1", Minor:"19", GitVersion:"v1.19.0", GitCommit:"e19964183377d0ec2052d1f1fa930c4d7575bd50", GitTreeState:"clean", BuildDate:"2020-08-26T14:30:33Z", GoVersion:"go1.15", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"19", GitVersion:"v1.19.3", GitCommit:"1e11e4a2108024935ecfcb2912226cedeafd99df", GitTreeState:"clean", BuildDate:"2020-10-14T12:41:49Z", GoVersion:"go1.15.2", Compiler:"gc", Platform:"linux/amd64"}