How OpenEBS Nodes can be upgraded seamlessly?












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I have a 3 node OpenEBS cluster and provisioned Jiva volume of 150G. I am running mysql application on it . I want to upgrade my storage Nodes to latest k8 version but with current implementation, OpenEBS Jiva volume is running with single controller and 3 replica and mysql pod is running in one of the Node. So if I upgrade one node, there will be chance for disruption(iSCSI disconnection) between mysql pod and target pod if upgrade has been doing on Nodes where controller is present. So how can I avoid this?










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    I have a 3 node OpenEBS cluster and provisioned Jiva volume of 150G. I am running mysql application on it . I want to upgrade my storage Nodes to latest k8 version but with current implementation, OpenEBS Jiva volume is running with single controller and 3 replica and mysql pod is running in one of the Node. So if I upgrade one node, there will be chance for disruption(iSCSI disconnection) between mysql pod and target pod if upgrade has been doing on Nodes where controller is present. So how can I avoid this?










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      I have a 3 node OpenEBS cluster and provisioned Jiva volume of 150G. I am running mysql application on it . I want to upgrade my storage Nodes to latest k8 version but with current implementation, OpenEBS Jiva volume is running with single controller and 3 replica and mysql pod is running in one of the Node. So if I upgrade one node, there will be chance for disruption(iSCSI disconnection) between mysql pod and target pod if upgrade has been doing on Nodes where controller is present. So how can I avoid this?










      share|improve this question














      I have a 3 node OpenEBS cluster and provisioned Jiva volume of 150G. I am running mysql application on it . I want to upgrade my storage Nodes to latest k8 version but with current implementation, OpenEBS Jiva volume is running with single controller and 3 replica and mysql pod is running in one of the Node. So if I upgrade one node, there will be chance for disruption(iSCSI disconnection) between mysql pod and target pod if upgrade has been doing on Nodes where controller is present. So how can I avoid this?







      mysql kubernetes upgrade openebs






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      asked Nov 14 '18 at 11:23









      Ranjith RaveendranRanjith Raveendran

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