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		07-30-2019
	
	
	
	
	
	
	
	
	
	
	
	
	
	
			
      
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| Title | Views | Posted | 
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| 2383 | 04-12-2023 08:58 PM | |
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		12-04-2017
	
		
		10:55 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
	
		1 Kudo
		
	
				
		
	
		
					
							 Hi @Anurag Mishra ,  for Operations covered when you run service check on various services you can know by reading the file service_check.py in respective services  for example :  HBASE you can understand by reading the file :   cat /var/lib/ambari-server/resources/common-services/HBASE/0.96.0.2.0/package/scripts/service_check.py  for HDFS  cat /var/lib/ambari-server/resources/common-services/HDFS/2.1.0.2.0/package/scripts/service_check.py  Similarly you can Open each of folders in common-services to see how ambari performs service check on each of those services  Now For other question  Is there some rest api to details of operations performed ?  you can Always know it by checking in Pending requests in UI   if you want to perform Service check via REST API you can follow the guides here :  How to run service checks for various services using Ambari Rest APIs.  Ambari API - Run all service checks (bulk) 
						
					
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		12-04-2017
	
		
		04:41 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 Hi @Michael Bronson  you can refer to following link to How to automatically restart/recovery of HDP services via ambari   How do I enable automatic restart / recovery of HDP services via Ambari?  Hope this Helps 
						
					
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		10-24-2017
	
		
		04:58 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 @sidharth,   * You can see the Ambari Server log to see if there is any error while performing the operation.  * You can double check the DNS of each of the ambari agents whether its correct  hostname -f  * You can see Check the ambari-agents on these nodes are running if not restart them ensure the value hostname points to your ambari server in the /etc/ambari-agent/conf/ambari-agent.ini  * you can see the /etc/hosts folder to check the FQDN names are provided are correct   hope this helps 
						
					
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		10-18-2017
	
		
		06:51 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 @Ramesh Prasad   Some more suggestions  1) For JS code use :WebStorm ( you will get EAP version from official website with 30 days trial)  2) Remember to use Coding guidelines as mentioned here     https://cwiki.apache.org/confluence/display/AMBARI/Coding+Guidelines+for+Ambari  3) when you are running the project always skip rat checks or it might fail in most of cases and takes lot of time:  mvn clean install package -Dmaven.test.skip=true -Drat.skip -DskipTests  4) if you are changing only client side changes( Javascript in ambari-web folder ) , you can only run the project on ambari-web folder using the abouve command and the output will be generated on ambari/ambari/ambari-web/public/javascripts folder  you can copy that for  debbuging in your server folder /usr/lib/ambari-server/web/javascripts 
						
					
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		10-09-2017
	
		
		05:32 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
	
		2 Kudos
		
	
				
		
	
		
					
							 Hi @dsun,  you can see the Status of upgrade in Database,  psql ambari -U ambari  default password is bigdata  in DB execute the following command to see package versions ( to know status of upgrade)  select * from hostcomponentstate;
 id  | cluster_id |     component_name      |   version   | current_stack_id | current_state | host_id |  service_name  | upgrade_state | security_state
-----+------------+-------------------------+-------------+------------------+---------------+---------+----------------+---------------+----------------
  24 |          2 | HDFS_CLIENT             | 2.6.2.0-205 |                7 | INSTALLED     |       1 | HDFS           | NONE          | UNSECURED
  21 |          2 | DATANODE                | 2.6.2.0-205 |                7 | STARTED       |       2 | HDFS           | NONE          | UNSECURED
  26 |          2 | HDFS_CLIENT             | 2.6.2.0-205 |                7 | INSTALLED     |       4 | HDFS           | NONE          | UNSECURED
   1 |          2 | NAMENODE                | 2.6.2.0-205 |                7 | STARTED       |       4 | HDFS           | NONE          | UNSECURED
  30 |          2 | MAPREDUCE2_CLIENT       | 2.6.2.0-205 |                7 | INSTALLED     |       4 | MAPREDUCE2     | NONE          | UNSECURED
   2 |          2 | SECONDARY_NAMENODE      | 2.6.2.0-205 |                7 | STARTED       |       1 | HDFS           | NONE          | UNSECURED
 101 |          2 | OOZIE_SERVER            | 2.6.2.0-205 |                7 | STARTED       |       1 | OOZIE          | NONE          | UNSECURED
  25 |          2 | HDFS_CLIENT             | 2.6.2.0-205 |                7 | INSTALLED     |       2 | HDFS           | NONE          | UNSECURED
  34 |          2 | TEZ_CLIENT              | 2.6.2.0-205 |                7 | INSTALLED     |       4 | TEZ            | NONE          | UNSECURED
 103 |          2 | OOZIE_CLIENT            | 2.6.2.0-205 |                7 | INSTALLED     |       2 | OOZIE          | NONE          | UNSECURED
 102 |          2 | OOZIE_CLIENT            | 2.6.2.0-205 |                7 | INSTALLED     |       1 | OOZIE          | NONE          | UNSECURED
  52 |          2 | METRICS_MONITOR         | UNKNOWN     |                7 | STARTED       |       1 | AMBARI_METRICS | NONE          | UNSECURED
   5 |          2 | HISTORYSERVER           | 2.6.2.0-205 |                7 | STARTED       |       1 | MAPREDUCE2     | NONE          | UNSECURED
   4 |          2 | APP_TIMELINE_SERVER     | 2.6.2.0-205 |                7 | STARTED       |       1 | YARN           | NONE          | UNSECURED
  58 |          2 | HST_AGENT               | UNKNOWN     |                7 | INSTALLED     |       1 | SMARTSENSE     | NONE          | UNSECURED
  39 |          2 | HBASE_CLIENT            | 2.6.2.0-205 |                7 | INSTALLED     |       2 | HBASE          | NONE          | UNSECURED
  17 |          2 | HST_SERVER              | UNKNOWN     |                7 | STARTED       |       4 | SMARTSENSE     | NONE          | UNSECURED
  59 |          2 | MYSQL_SERVER            | UNKNOWN     |                7 | STARTED       |       1 | HIVE           | NONE          | UNSECURED
  12 |          2 | ZOOKEEPER_SERVER        | 2.6.2.0-205 |                7 | STARTED       |       4 | ZOOKEEPER      | NONE          | UNSECURED
  51 |          2 | METRICS_MONITOR         | UNKNOWN     |                7 | STARTED       |       4 | AMBARI_METRICS | NONE          | UNSECURED
   3 |          2 | RESOURCEMANAGER         | 2.6.2.0-205 |                7 | STARTED       |       1 | YARN           | NONE          | UNSECURED
  45 |          2 | INFRA_SOLR_CLIENT       | UNKNOWN     |                7 | INSTALLED     |       4 | AMBARI_INFRA   | NONE          | UNSECURED
  18 |          2 | ACTIVITY_ANALYZER       | UNKNOWN     |                7 | INSTALLED     |       4 | SMARTSENSE     | NONE          | UNSECURED
  38 |          2 | HIVE_CLIENT             | 2.6.2.0-205 |                7 | INSTALLED     |       1 | HIVE           | NONE          | UNSECURED
  54 |          2 | METRICS_MONITOR         | UNKNOWN     |                7 | STARTED       |       2 | AMBARI_METRICS | NONE          | UNSECURED
  55 |          2 | HST_AGENT               | UNKNOWN     |                7 | INSTALLED     |       4 | SMARTSENSE     | NONE          | UNSECURED
  13 |          2 | INFRA_SOLR              | UNKNOWN     |                7 | STARTED       |       4 | AMBARI_INFRA   | NONE          | UNSECURED
  31 |          2 | MAPREDUCE2_CLIENT       | 2.6.2.0-205 |                7 | INSTALLED     |       1 | MAPREDUCE2     | NONE          | UNSECURED
  11 |          2 | ZOOKEEPER_SERVER        | 2.6.2.0-205 |                7 | STARTED       |       3 | ZOOKEEPER      | NONE          | UNSECURED
  14 |          2 | METRICS_GRAFANA         | UNKNOWN     |                7 | STARTED       |       4 | AMBARI_METRICS | NONE          | UNSECURED
  53 |          2 | METRICS_MONITOR         | UNKNOWN     |                7 | STARTED       |       3 | AMBARI_METRICS | NONE          | UNSECURED
  44 |          2 | INFRA_SOLR_CLIENT       | UNKNOWN     |                7 | INSTALLED     |       2 | AMBARI_INFRA   | NONE          | UNSECURED
  36 |          2 | HCAT                    | 2.6.2.0-205 |                7 | INSTALLED     |       2 | HIVE           | NONE          | UNSECURED
  37 |          2 | HIVE_CLIENT             | 2.6.2.0-205 |                7 | INSTALLED     |       2 | HIVE           | NONE          | UNSECURED
  32 |          2 | MAPREDUCE2_CLIENT       | 2.6.2.0-205 |                7 | INSTALLED     |       2 | MAPREDUCE2     | NONE          | UNSECURED
  20 |          2 | SPARK2_JOBHISTORYSERVER | 2.6.2.0-205 |                7 | STARTED       |       4 | SPARK2         | NONE          | UNSECURED
  15 |          2 | METRICS_COLLECTOR       | UNKNOWN     |                7 | STARTED       |       3 | AMBARI_METRICS | NONE          | UNSECURED
  23 |          2 | HBASE_REGIONSERVER      | 2.6.2.0-205 |                7 | STARTED       |       2 | HBASE          | NONE          | UNSECURED
  50 |          2 | SLIDER                  | 2.6.2.0-205 |                7 | INSTALLED     |       2 | SLIDER         | NONE          | UNSECURED
   6 |          2 | HIVE_METASTORE          | 2.6.2.0-205 |                7 | STARTED       |       1 | HIVE           | NONE          | UNSECURED
  41 |          2 | PIG                     | 2.6.2.0-205 |                7 | INSTALLED     |       2 | PIG            | NONE          | UNSECURED
  27 |          2 | YARN_CLIENT             | 2.6.2.0-205 |                7 | INSTALLED     |       4 | YARN           | NONE          | UNSECURED
  40 |          2 | PIG                     | 2.6.2.0-205 |                7 | INSTALLED     |       1 | PIG            | NONE          | UNSECURED
  49 |          2 | SLIDER                  | 2.6.2.0-205 |                7 | INSTALLED     |       1 | SLIDER         | NONE          | UNSECURED
  46 |          2 | SPARK_CLIENT            | 2.6.2.0-205 |                7 | INSTALLED     |       1 | SPARK          | NONE          | UNSECURED
  10 |          2 | ZOOKEEPER_SERVER        | 2.6.2.0-205 |                7 | STARTED       |       1 | ZOOKEEPER      | NONE          | UNSECURED
   9 |          2 | HBASE_MASTER            | 2.6.2.0-205 |                7 | STARTED       |       4 | HBASE          | NONE          | UNSECURED
  48 |          2 | SPARK2_CLIENT           | 2.6.2.0-205 |                7 | INSTALLED     |       2 | SPARK2         | NONE          | UNSECURED
  35 |          2 | TEZ_CLIENT              | 2.6.2.0-205 |                7 | INSTALLED     |       1 | TEZ            | NONE          | UNSECURED
  22 |          2 | NODEMANAGER             | 2.6.2.0-205 |                7 | STARTED       |       2 | YARN           | NONE          | UNSECURED
  28 |          2 | YARN_CLIENT             | 2.6.2.0-205 |                7 | INSTALLED     |       1 | YARN           | NONE          | UNSECURED
  33 |          2 | TEZ_CLIENT              | 2.6.2.0-205 |                7 | INSTALLED     |       2 | TEZ            | NONE          | UNSECURED
  42 |          2 | ZOOKEEPER_CLIENT        | 2.6.2.0-205 |                7 | INSTALLED     |       1 | ZOOKEEPER      | NONE          | UNSECURED
  43 |          2 | ZOOKEEPER_CLIENT        | 2.6.2.0-205 |                7 | INSTALLED     |       2 | ZOOKEEPER      | NONE          | UNSECURED
  47 |          2 | SPARK_CLIENT            | 2.6.2.0-205 |                7 | INSTALLED     |       2 | SPARK          | NONE          | UNSECURED
  57 |          2 | HST_AGENT               | UNKNOWN     |                7 | INSTALLED     |       3 | SMARTSENSE     | NONE          | UNSECURED
  29 |          2 | YARN_CLIENT             | 2.6.2.0-205 |                7 | INSTALLED     |       2 | YARN           | NONE          | UNSECURED
  56 |          2 | HST_AGENT               | UNKNOWN     |                7 | INSTALLED     |       2 | SMARTSENSE     | NONE          | UNSECURED
  16 |          2 | ACTIVITY_EXPLORER       | UNKNOWN     |                7 | STARTED       |       4 | SMARTSENSE     | NONE          | UNSECURED
 104 |          2 | OOZIE_CLIENT            | 2.6.2.0-205 |                7 | INSTALLED     |       4 | OOZIE          | NONE          | UNSECURED
  19 |          2 | SPARK_JOBHISTORYSERVER  | 2.6.2.0-205 |                7 | STARTED       |       4 | SPARK          | NONE          | UNSECURED
   7 |          2 | WEBHCAT_SERVER          | 2.6.2.0-205 |                7 | STARTED       |       1 | HIVE           | NONE          | UNSECURED
   8 |          2 | HIVE_SERVER             | 2.6.2.0-205 |                7 | STARTED       |       1 | HIVE           | NONE          | UNSECURED
  select * from hostcomponentdesiredstate;
id  | cluster_id |     component_name      | desired_stack_id | desired_state | host_id |  service_name  | admin_state | maintenance_state | security_state | restart_required
-----+------------+-------------------------+------------------+---------------+---------+----------------+-------------+-------------------+----------------+------------------
   6 |          2 | HIVE_METASTORE          |                7 | STARTED       |       1 | HIVE           |             | OFF               | UNSECURED      |                0
   7 |          2 | WEBHCAT_SERVER          |                7 | STARTED       |       1 | HIVE           |             | OFF               | UNSECURED      |                0
  19 |          2 | SPARK_JOBHISTORYSERVER  |                7 | STARTED       |       4 | SPARK          |             | OFF               | UNSECURED      |                0
  20 |          2 | SPARK2_JOBHISTORYSERVER |                7 | STARTED       |       4 | SPARK2         |             | OFF               | UNSECURED      |                0
  23 |          2 | HBASE_REGIONSERVER      |                7 | STARTED       |       2 | HBASE          | INSERVICE   | OFF               | UNSECURED      |                0
  51 |          2 | METRICS_MONITOR         |                7 | STARTED       |       4 | AMBARI_METRICS | INSERVICE   | OFF               | UNSECURED      |                0
  52 |          2 | METRICS_MONITOR         |                7 | STARTED       |       1 | AMBARI_METRICS | INSERVICE   | OFF               | UNSECURED      |                0
  53 |          2 | METRICS_MONITOR         |                7 | STARTED       |       3 | AMBARI_METRICS | INSERVICE   | OFF               | UNSECURED      |                0
  54 |          2 | METRICS_MONITOR         |                7 | STARTED       |       2 | AMBARI_METRICS | INSERVICE   | OFF               | UNSECURED      |                0
  55 |          2 | HST_AGENT               |                7 | STARTED       |       4 | SMARTSENSE     | INSERVICE   | OFF               | UNSECURED      |                0
  56 |          2 | HST_AGENT               |                7 | STARTED       |       2 | SMARTSENSE     | INSERVICE   | OFF               | UNSECURED      |                0
  57 |          2 | HST_AGENT               |                7 | STARTED       |       3 | SMARTSENSE     | INSERVICE   | OFF               | UNSECURED      |                0
  58 |          2 | HST_AGENT               |                7 | STARTED       |       1 | SMARTSENSE     | INSERVICE   | OFF               | UNSECURED      |                0
  59 |          2 | MYSQL_SERVER            |                7 | STARTED       |       1 | HIVE           |             | OFF               | UNSECURED      |                0
 102 |          2 | OOZIE_CLIENT            |                7 | INSTALLED     |       1 | OOZIE          |             | OFF               | UNSECURED      |                0
 104 |          2 | OOZIE_CLIENT            |                7 | INSTALLED     |       4 | OOZIE          |             | OFF               | UNSECURED      |                0
   1 |          2 | NAMENODE                |                7 | STARTED       |       4 | HDFS           |             | OFF               | UNSECURED      |                0
   2 |          2 | SECONDARY_NAMENODE      |                7 | STARTED       |       1 | HDFS           |             | OFF               | UNSECURED      |                0
   3 |          2 | RESOURCEMANAGER         |                7 | STARTED       |       1 | YARN           |             | OFF               | UNSECURED      |                0
   4 |          2 | APP_TIMELINE_SERVER     |                7 | STARTED       |       1 | YARN           |             | OFF               | UNSECURED      |                0
   5 |          2 | HISTORYSERVER           |                7 | STARTED       |       1 | MAPREDUCE2     |             | OFF               | UNSECURED      |                0
  21 |          2 | DATANODE                |                7 | STARTED       |       2 | HDFS           | INSERVICE   | OFF               | UNSECURED      |                0
  22 |          2 | NODEMANAGER             |                7 | STARTED       |       2 | YARN           | INSERVICE   | OFF               | UNSECURED      |                0
  24 |          2 | HDFS_CLIENT             |                7 | INSTALLED     |       1 | HDFS           |             | OFF               | UNSECURED      |                0
  25 |          2 | HDFS_CLIENT             |                7 | INSTALLED     |       2 | HDFS           |             | OFF               | UNSECURED      |                0
  26 |          2 | HDFS_CLIENT             |                7 | INSTALLED     |       4 | HDFS           |             | OFF               | UNSECURED      |                0
  27 |          2 | YARN_CLIENT             |                7 | INSTALLED     |       4 | YARN           |             | OFF               | UNSECURED      |                0
  28 |          2 | YARN_CLIENT             |                7 | INSTALLED     |       1 | YARN           |             | OFF               | UNSECURED      |                0
  29 |          2 | YARN_CLIENT             |                7 | INSTALLED     |       2 | YARN           |             | OFF               | UNSECURED      |                0
  30 |          2 | MAPREDUCE2_CLIENT       |                7 | INSTALLED     |       4 | MAPREDUCE2     |             | OFF               | UNSECURED      |                0
  31 |          2 | MAPREDUCE2_CLIENT       |                7 | INSTALLED     |       1 | MAPREDUCE2     |             | OFF               | UNSECURED      |                0
  32 |          2 | MAPREDUCE2_CLIENT       |                7 | INSTALLED     |       2 | MAPREDUCE2     |             | OFF               | UNSECURED      |                0
  33 |          2 | TEZ_CLIENT              |                7 | INSTALLED     |       2 | TEZ            |             | OFF               | UNSECURED      |                0
  34 |          2 | TEZ_CLIENT              |                7 | INSTALLED     |       4 | TEZ            |             | OFF               | UNSECURED      |                0
  35 |          2 | TEZ_CLIENT              |                7 | INSTALLED     |       1 | TEZ            |             | OFF               | UNSECURED      |                0
  36 |          2 | HCAT                    |                7 | INSTALLED     |       2 | HIVE           |             | OFF               | UNSECURED      |                0
  37 |          2 | HIVE_CLIENT             |                7 | INSTALLED     |       2 | HIVE           |             | OFF               | UNSECURED      |                0
  38 |          2 | HIVE_CLIENT             |                7 | INSTALLED     |       1 | HIVE           |             | OFF               | UNSECURED      |                0
  39 |          2 | HBASE_CLIENT            |                7 | INSTALLED     |       2 | HBASE          |             | OFF               | UNSECURED      |                0
  40 |          2 | PIG                     |                7 | INSTALLED     |       1 | PIG       
     |             | OFF               | UNSECURED      |                0
  41 |          2 | PIG                     |                7 | INSTALLED     |       2 | PIG            |             | OFF               | UNSECURED      |                0
  42 |          2 | ZOOKEEPER_CLIENT        |                7 | INSTALLED     |       1 | ZOOKEEPER      |             | OFF               | UNSECURED      |                0
  43 |          2 | ZOOKEEPER_CLIENT        |                7 | INSTALLED     |       2 | ZOOKEEPER      |             | OFF               | UNSECURED      |                0
  44 |          2 | INFRA_SOLR_CLIENT       |                7 | INSTALLED     |       2 | AMBARI_INFRA   |             | OFF               | UNSECURED      |                0
  45 |          2 | INFRA_SOLR_CLIENT       |                7 | INSTALLED     |       4 | AMBARI_INFRA   |             | OFF               | UNSECURED      |                0
  46 |          2 | SPARK_CLIENT            |                7 | INSTALLED     |       1 | SPARK          |             | OFF               | UNSECURED      |                0
  47 |          2 | SPARK_CLIENT            |                7 | INSTALLED     |       2 | SPARK          |             | OFF               | UNSECURED      |                0
  48 |          2 | SPARK2_CLIENT           |                7 | INSTALLED     |       2 | SPARK2         |             | OFF               | UNSECURED      |                0
  49 |          2 | SLIDER                  |                7 | INSTALLED     |       1 | SLIDER         |             | OFF               | UNSECURED      |                0
  50 |          2 | SLIDER                  |                7 | INSTALLED     |       2 | SLIDER         |             | OFF               | UNSECURED      |                0
   8 |          2 | HIVE_SERVER             |                7 | STARTED       |       1 | HIVE           |             | OFF               | UNSECURED      |                0
   9 |          2 | HBASE_MASTER            |                7 | STARTED       |       4 | HBASE          |             | OFF               | UNSECURED      |                0
  10 |          2 | ZOOKEEPER_SERVER        |                7 | STARTED       |       1 | ZOOKEEPER      |             | OFF               | UNSECURED      |                0
  11 |          2 | ZOOKEEPER_SERVER        |                7 | STARTED       |       3 | ZOOKEEPER      |             | OFF               | UNSECURED      |                0
  12 |          2 | ZOOKEEPER_SERVER        |                7 | STARTED       |       4 | ZOOKEEPER      |             | OFF               | UNSECURED      |                0
  13 |          2 | INFRA_SOLR              |                7 | STARTED       |       4 | AMBARI_INFRA   |             | OFF               | UNSECURED      |                0
  14 |          2 | METRICS_GRAFANA         |                7 | STARTED       |       4 | AMBARI_METRICS |             | OFF               | UNSECURED      |                0
  15 |          2 | METRICS_COLLECTOR       |                7 | STARTED       |       3 | AMBARI_METRICS |             | OFF               | UNSECURED      |                0
  16 |          2 | ACTIVITY_EXPLORER       |                7 | STARTED       |       4 | SMARTSENSE     |             | OFF               | UNSECURED      |                0
  17 |          2 | HST_SERVER              |                7 | STARTED       |       4 | SMARTSENSE     |             | OFF               | UNSECURED      |                0
  18 |          2 | ACTIVITY_ANALYZER       |                7 | STARTED       |       4 | SMARTSENSE     |             | OFF               | UNSECURED      |                0
 103 |          2 | OOZIE_CLIENT            |                7 | INSTALLED     |       2 | OOZIE          |             | OFF               | UNSECURED      |                0
 101 |          2 | OOZIE_SERVER            |                7 | STARTED       |       1 | OOZIE          |             | OFF               | UNSECURED      |                0
  select * from host_version;
 id | repo_version_id | host_id |  state
----+-----------------+---------+---------
  2 |               1 |       3 | CURRENT
  3 |               1 |       4 | CURRENT
  4 |               1 |       1 | CURRENT
  1 |               1 |       2 | CURRENT
  select * from cluster_version;
 id | repo_version_id | cluster_id |  state  |  start_time   |   end_time    | user_name
----+-----------------+------------+---------+---------------+---------------+-----------
  1 |               1 |          2 | CURRENT | 1505793403390 | 1505794154404 | admin
  you can update the host_versions to UPGRADING incase some upgrades has not happened.  you can troubleshoot more based on output of this database commands. 
						
					
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		09-25-2017
	
		
		06:03 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 As per this Link(point17) :https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.6.2/bk_command-line-upgrade/content/getting-ready-23.html  You need to upgrade JDK first. then go with HDP upgrade 
						
					
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		08-08-2017
	
		
		11:26 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 I have a Kerberos enabled cluster with HDFS service installed on host1.  when i try to perform some operations on HDFS server, its failing with below error.  17/08/08 11:19:34 WARN ipc.Client: Exception encountered while connecting to the server : javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)]
report: Failed on local exception: java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)]; Host Details : local host is: "host1.example.com/172.26.110.122"; destination host is: "host1.example.com":8020;  I tried to execute klist   it shoes some certificates but seems expired.  Please help me on this error. 
						
					
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		08-08-2017
	
		
		08:29 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 If you are sure its related to your Custom Service ,  You can skip the service checks of Ambari before upgrade by changing the configuration in ambari.properties :  cd /etc/ambari-server/conf
vi ambari.properties  check for the below configurations (add if doesnt exist):   skip.service.checks=true -- if you want to skip service checks
stack.upgrade.bypass.prechecks=true   Restart the ambari server   Perform the steps.  It has to work fine.  Let me know if it works  
						
					
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		08-08-2017
	
		
		04:54 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 Go to etc/hive/conf  find a file called hive-log4j.prpoerties  # 30-day backup 
#log4j.appender.DRFA.MaxBackupIndex= 30  Find the abouve commented line inside the file.  Remove the # and modify value to 10.   I think this is one you are searching for .  Let me know if it works 
						
					
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		06-14-2017
	
		
		06:29 AM
	
	
	
	
	
	
	
	
	
	
	
	
	
	
		
	
				
		
			
					
				
		
	
		
					
							 @Jay SenSharma   Thanks, Worked for me too 
						
					
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