@TechAven - Can you run below command on the ambari-server host and share the output. # ambari-server status. Also can you check the error message in the ambari server logs( /var/log/ambari-server/ambari-server.log) during the time of the startup. If possible you can share the ambari server logs. ... View more

@msheean253 - For disk failures, it depends on the property "DataNode failed disk tolerance". You can search for the same in the HDFS configs from Ambari. You need to configure based upon Disk failure.   If Replication Factor is set to 3, then you can have max 2 DN down without any impact on the data. ... View more

@RickWang - Can you please confirm where you was the OutofMemory error. Can you please share the snippet of the log file. Also share the "#ps -ef | grep -i hiveserver2" from the hiveserver2 host. ... View more

@venk - You can refer the below article to get information about the cross-realm:   https://community.cloudera.com/t5/Community-Articles/How-does-a-cross-realm-trust-work/ta-p/245705 https://www.cloudera.com/documentation/enterprise/5-14-x/topics/cm_sg_kdc_def_domain_s2.html ... View more

@LeeFan - Can you please click on any one applications and share the snapshot with me. I am suspecting, applicationMaster is not getting enough memory to run the applications.  Also let me know the value of this parameter in Tez configs " tez. am. resource. memory. mb". If it is set to higher value, you can change to lower value and try it again. ... View more

@harry_li - Can you check and confirm, if your MYSQL is up and running? Also refer below article which talks about the error message which you are getting:   https://community.cloudera.com/t5/Support-Questions/ambari-2-7-0-not-start/m-p/198737 ... View more

@ss00552277 - Did you check the logs for those services and found any error messages? Example for hive check the "/var/log/hive/" log directory. Also I will suggest you to check the same on your host also. As all your services was down on one host, there might be possibility of some issues from the OS side also. Just check the /var/log/message and dmesg on the host. ... View more

@kishore1986 - You can refer below link for configuring the HA Proxy for Hiveserver2.   https://www.cloudera.com/documentation/enterprise/5-9-x/topics/admin_ha_hiveserver2.html ... View more

@maxolasersquad - I can see you are getting below error while installation:   resource_management.core.exceptions.Fail: No package found for storm-${stack_version}(expected name: storm-3-4-1-1)   Can you please edit the  script.py   file under  /usr/lib/ambari-agent/lib/resource_management/libraries/script/script.py  on all the host and comment the line 541 as the following: 541 # package_version = None 542 if (package_version is None or '-' not in package_version) and default('/repositoryFile', None): 543 self.load_available_packages() 544 package_name = self.get_package_from_available(name, self.available_packages_in_repos) 545 if package_name is None: 546 raise Fail("Cannot match package for regexp name {0}. Available packages: {1}".format(name, self.available_packages_in_repos)) 547 return package_name   After this restart the ambari-agent once. ... View more

@Manjunath - Can you check if your metrics collector is tuned as per the below document:   https://cwiki.apache.org/confluence/display/AMBARI/Configurations+-+Tuning ... View more

@Duraisankar S - From this error, I can feel that you have copied the ACID table from one cluster to another cluster. And you are trying to query the new table. Please correct me If I am wrong. If that is a case, then ACID table migration is not supported. Check below description about the same. "Transactional table data cannot be simply copied from cluster to cluster. Each cluster maintains a global transaction ID sequence which is embedded in the data files and file names of transactional tables. Copying the data files confuses the target system. " ... View more

@dinesh v - Below article will help you. How to increase task timeout in Ambari ... View more

@Sajesh PP - You will get below messages in the logs during the time of shutdown. 2019-03-14 17:10:57,270 INFO impl.MetricsSystemImpl (MetricsSystemImpl.java:shutdown(606)) - NodeManager metrics system shutdown complete. 2019-03-14 17:10:57,274 INFO nodemanager.NodeManager (LogAdapter.java:info(45)) - SHUTDOWN_MSG: /************************************************************ SHUTDOWN_MSG: Shutting down NodeManager at abc.example.com/xxx.xx.xx.xxx ************************************************************ You need to grep in the same in the NM logs. If you are not finding anything, then you need to check other files created in the NM logs directory. ... View more

@Prakash Srinivasan - There is no way to upgrade particular services or components. You need to upgrade the entire HDP stack. ... View more

@Mr. Cheng - There is no way to upgrade particular services or components. You need to upgrade the entire HDP stack. ... View more