[ins-06006] Passwordless ssh connectivity not set up between the following

在安装rac的时候出现如下错误：

 


查看日志如下：

INFO: Gathering system details...

INFO: Local Domain Name:

WARNING: No Local Domain found, setting to whatever first domain is available

INFO: Local Domain set to:

WARNING: No Domain found, skipping Same Domain validation

INFO: Validating for Local Node existence

INFO: Checking for local node existence in the list of public nodes

INFO: Validating for Duplicates

INFO: Validating for Duplicates in the table

INFO: Verifying setup for installer validations

INFO: Overall status of CVU API call:OPERATION_FAILED

SEVERE: [FATAL] [INS-30132] Initial setup required for the execution of installer validations failed on nodes: rac-two

   CAUSE: Indicated nodes were not reachable or failed to access the temporary location on the indicated nodes.

   ACTION: Ensure that all the indicated nodes are reachable and current user has required permissions to access the temporary location on all the indicated nodes.

INFO: Advice is ABORT

INFO: Adding ExitStatus INVALID_USER_INPUT to the exit status set

INFO: Completed validating state <CRSNodeInformationUI>

INFO: Terminating all background operations

INFO: Terminated all background operations

INFO: Transition aborted

INFO: Rolled back to state <CRSNodeInformationUI>

INFO: Preparing to check passwordless SSH Connectivity between nodes: [Rac-one, Rac-two]

INFO: Testing passwordless SSH connectivity between the selected nodes. This may take several minutes, please wait...

INFO: OverallStatus of User Equivalence check using CVU is OPERATION_FAILED

INFO: VerificationError:  Either a node failed in the middle of a manageability operation, or the communication between nodes was disrupted.

查看err如下：

---# Begin Stacktrace #---------------------------

ID: oracle.install.driver.oui.OUISSHSupportManager:577

oracle.ops.mgmt.cluster.ClusterException: ssh: Could not resolve hostname  -o FallBackToRsh=no : No address associated with hostname :failedssh: Could not resolve hostname  -o FallBackToRsh=no : No address associated with hostname :failed :successful :successful

        at oracle.ops.mgmt.cluster.ClusterConfig.submit(ClusterConfig.java:578)

        at oracle.ops.mgmt.cluster.ClusterCmd.submit(ClusterCmd.java:269)

        at oracle.ops.mgmt.cluster.ClusterCmd.submit(ClusterCmd.java:294)

        at oracle.install.driver.oui.OUISSHSupportManager.getUnconfiguredRemoteNodes(OUISSHSupportManager.java:428)

        at oracle.install.driver.oui.OUISSHSupportManager.getSSHConnectivityDetails(OUISSHSupportManager.java:378)

        at oracle.install.commons.net.support.SSHSupportManager.getSSHConnectivityDetails(SSHSupportManager.java:181)

        at oracle.install.ivw.common.view.SSHSetupPane$8.perform(SSHSetupPane.java:305)

        at oracle.install.ivw.common.view.SSHSetupPane$SSHOperation.run(SSHSetupPane.java:336)

问题解决办法：

将主机中/etc/hosts 所有大写改为小写。问题得到解决。