@Cl0ck Each host's name is stored in CM's backend database with an UUID attached, please refer to table HOSTS. Example as below:   HOST_ID: 12 OPTIMISTIC_LOCK_VERSION: 148 HOST_IDENTIFIER: bfaf4b71-01e2-4157-b46f-d1c13566b69a NAME: host-xxx-xxx.xxx IP_ADDRESS: xx.xx.xx.xx RACK_ID: /default STATUS: NA CONFIG_CONTAINER_ID: 1 MAINTENANCE_COUNT: 0 DECOMMISSION_COUNT: 0 CLUSTER_ID: 1 NUM_CORES: 1 TOTAL_PHYS_MEM_BYTES: 1929342976 PUBLIC_NAME: NULL PUBLIC_IP_ADDRESS: NULL CLOUD_PROVIDER: NULL   Where HOST_IDENTIFIER is the UUID, and is stored under /var/lib/cloudera-scm-agent/uuid on each host. Maybe you can try to update the table here for NAME field and see if that can help? Cheers Eric ... View more

@sagittarian , Can you please share the full stacktrace of the error? Both from HS2 log and yarn application logs? Thanks Eric ... View more

@kvinod CM 5.8.x is very old, is there any reason that you do not want to upgrade? As @lwang mentioned, higher version of CM supported downgrade back to Express version, so I guess the option is for you to upgrade first. But personally I don't see any issues if you don't want to do anything. After expiry, the only difference would be that Enterprise features won't be available, but cluster should still function. Unless Li can provide more insights. Cheers Eric ... View more

@kvinod, There won't be issues after license expired, it just that the Enterprise features won't be available, but cluster should still function as before. Please see below doc: https://docs.cloudera.com/documentation/enterprise/latest/topics/cm_ag_licenses.html#cmug_topic_13_7__section_ed1_nz1_wr When a Cloudera Enterprise license expires, the following occurs: -- Cloudera Enterprise Cloudera Enterprise Trial - Enterprise features are disabled. --Cloudera Enterprise - Most enterprise features such as Navigator, reports, Auto-TLS, and fine-grained permissions are disabled. Key Trustee KMS and the Key Trustee server will continue to function on the cluster, but you cannot change any configurations or add any services. Navigator will not continue to collect audits, but existing audits will remain on disk in the Cloudera Manager audit table. On license expiration, the license expiration banner displays which enterprise features have been disabled. In terms of downgrading to express edition, can you try to restart CM and management services and see if it will do it? Cheers Eric ... View more

@avengers CM does not manage HAProxy server, you need to manage it yourself, as the Proxy Server can be any 3rd that provides the service, like HAProxy or F5. At the bottom of the page you referenced, there is an example of how to setup HAProxy: https://docs.cloudera.com/documentation/enterprise/6/6.1/topics/admin_ha_hiveserver2.html#example_ha_proxy_config It is your responsibility to make sure that 3rd HA service is configured properly and up and running. Cheers Eric ... View more

Hi @parthk, No problems. Impala + Ranger is under construction for CDP release. From what I can see Phase one is done and there are a few more phases to go through. So it is still early stage and I do not have ETA. You probably just have to wait and ask the question again a few months down the track. Cheers Eric ... View more

@Amn_468, Can you please explain a bit more on "run through impala shell via jdbc connection"? Which JDBC driver and how did you set it up? The article is generic, as the setting is set at the impala server level, so session will timeout from impala daemon and when that happens, all clients' connections will be closed, together with the queries in those sessions. Cheers Eric ... View more