Cloudera Manager 7.11.3 Cumulative hotfix 5

When you upgrade from Cloudera Manager 7.7.1 or lower versions to Cloudera Manager 7.11.3 or higher versions with CDP Private Cloud Base 7.1.7.x Hue does not start because Cloudera Manager forces Hue to start with Python 3.8, and Hue needs Python 2.7.

The reason for this issue is because Cloudera Manager does not clean up the Python Path at any time, so when Hue tries to start the Python Path points to 3.8, which is not supported in CDP Private Cloud Base 7.1.7.x version by Hue.

Upgrading JAVA from JDK 8 to JDK 11 creates the following alert in CMS:

Bad : CMSERVER:pit666.slayer.mayank: Reaching Cloudera Manager Server failed

[root@pit666.slayer ~]# /us/lib/jvm/java-1.8.0/bin/java GetHostName
Hostname: pit666.slayer.mayank

[root@pit666.slayer ~]# /usr/lib/jvm/java-11/bin/java GetHostName
Hostname: pit666.slayer

You can notice that the "hostname" is set to a short name instead of FQDN.

Host Inspector fails with Psycopg2 version error while upgrading to Cloudera Manager 7.11.3 or Cloudera Manager 7.11.3 CHF-x versions. When you run the Host Inspector, you get an error Not finding Psycopg2, even though it is installed on all hosts.

Unable to create NettyTransceiver due to Avro library upgrade which leads to File Descriptor leak. File Descriptor leak occurs in Cloudera Manager when a service tries to talk with Event Server over Avro.

For any combinations of CM 7.11.3 version up to CM 7.11.3 CHF7 version, with CDP 7.1.7 through CDP 7.1.8, collection of the YARN diagnostic bundle will fail, and no data transmits occur.

Starting from Cloudera Manager 7.11.3, Cloudera Manager auto-configures the livy_admin_users configuration when Livy is run for the first time. If you add Zeppelin or Knox services later to the existing cluster and do not manually update the service user, the User not allowed to impersonate error is displayed.

Replication policies might fail if the source and target Cloudera Manager instances use different encryption types in Kerberos because of different Java versions. For example, the Java 11 and higher versions might use the aes256-cts encryption type, and the versions lower than Java 11 might use the rc4-hmac encryption type.

MariaDB 10.6, by default, includes the property require_secure_transport=ON in the configuration file (/etc/my.cnf), which is absent in MariaDB 10.4. This setting prohibits non-TLS connections, leading to access issues. This problem is observed in High Availability (HA) mode, where certain operations may not be using the same connection.

Azul Open JDK 8 and 11 are not supported with Cloudera Manager. To use Azul Open JDK 8 or 11 for Cloudera Manager RPM/DEBs, you must manually create a symlink between the Zulu JDK installation path and the default JDK path.

Impala profile data is not available on Observatory.

Telemetry Publisher logs show:

DEBUG org.apache.cxf.jaxrs.utils.JAXRSUtils: No method match, method name : addProfileEvent, request path : /cluster/impala2, method @Path : /{clusterName}/{serviceName}, HTTP Method : POST, method HTTP Method : POST, ContentType : application/x-www-form-urlencoded, method @Consumes : application/json,, Accept : */*,, method @Produces : application/json,.

Cloudera Manager agent logs on Impalad hosts report:

Error occurred when sending entry to server: HTTP Error 415: Unsupported Media Type, url: http://<telemetry_publisher_host>:<port>