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https://issues.apache.org/jira/browse/AMBARI-25137?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated AMBARI-25137:
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Labels: pull-request-available (was: )
> SECONDARY_NAMENODE check failed when calling rolling upgrade in the ambari
> managing multi-clusters
> ----------------------------------------------------------------------------------------------------
>
> Key: AMBARI-25137
> URL: https://issues.apache.org/jira/browse/AMBARI-25137
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.7.0
> Reporter: yangqk
> Priority: Major
> Labels: pull-request-available
>
> If i create two clusters in a ambari ,one of them is HA mode, and another is
> nn and snn mode, i want to upgrade the HA cluster with rolling upgrade mode,
> the ambari server will reponse "
> The SNameNode component must be deleted from host:"
> I found the next code :
> {code:java}
> // Try another method to find references to SECONDARY_NAMENODE
> if (hosts.isEmpty()) {
> List<HostComponentStateEntity> allHostComponents =
> hostComponentStateDao.findAll();
> for(HostComponentStateEntity hc : allHostComponents) {
> if (hc.getServiceName().equalsIgnoreCase(HDFS_SERVICE_NAME) &&
> hc.getComponentName().equalsIgnoreCase(SECONDARY_NAMENODE)) {
> hosts.add(hc.getHostName());
> }
> }
> }
> {code}
> it means this checker will find all hosts which has the snn component
> regardless of whether it belongs to this cluster.
> Maybe HostComponentStateDao should have a findByCluster method
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