You can try below.    -increasing the heap size of this HiveServer2 role by changing the field Hive - Configuration - 'Java Heap Size of HiveServer2 in Bytes' to 24 GiB for this role instance. - Increasing the time out for the hive service To check further provide   From the SERVICEMONITOR system, please do the following: cd /var/log/cloudera-scm-firehose gzip -c *SERVICEMONITOR*.out > sm.out.gz     ... View more

The following areas normally cause this problem: 1) the connection from Ambari agent host to Ambari Server got lost. 2) firewall issue blocked connections. 3) hostname and IP address are not being set correctly in /etc/hosts   You can compare the output using these APIs: > curl ­u user:passwd http://AmbariHost:8080/api/v1/hosts ... View more

I was having this error and Iliterally spent days scouring the Web for an answer. It turned out in my case that the order matters. The correct order was: olcTLSCACertificateFile, olcTLSCertificateKeyFile, olcTLSCertificateFile. ... View more

To invoke kerberos related operations via Ambari APIs requires, we store the KDC credentials to the Ambari's credential store. For more information on the same please refer to: https://community.cloudera.com/t5/Community-Articles/Adding-KDC-Administrator-Credentials-to-the-Ambari/ta-p/246591   1. To set up Ambari's credential store, the following command must be invoked from the Ambari server host's command line: # ambari-server setup-security Then choose option [2] Encrypt passwords stored in ambari.properties file.   2. Review the changes. Once this is complete, the Ambari credential store will be located at /var/lib/ambari-server/keys/credentials.jceks.   3. Restart ambari server.   4. Now we should be able to store the KDC credentials to the ambari credentials store.   # curl -u admin:admin -H 'X-Requested-By: ambari' -X POST -d '{ 'Credential' : {'principal' : 'admin/admin@EXAMPLE.COM', 'key' : 'admin','type' : 'persisted'}}' http://example.com:8080/api/v1/clusters/kerberos_ambari/credentials/kdc.admin.credential   5. After this we should be able to run the Kerberos API calls like following:   Regenerate for all   curl -u admin:admin -H 'X-Requested-By: ambari' -X PUT -d '{'Clusters':{'security_type':'KERBEROS'}}' http://example.com:8080/api/v1/clusters/kerberos_ambari?regenerate_keytabs=all   (OR) Below is for missing once.   curl -u admin:admin -H 'X-Requested-By: ambari' -X PUT -d '{'Clusters':{'security_type':'KERBEROS'}}' http://example.com:8080/api/v1/clusters/kerberos_ambari?regenerate_keytabs=missing ... View more