Member since
09-29-2015
140
Posts
86
Kudos Received
9
Solutions
My Accepted Solutions
Title | Views | Posted |
---|---|---|
730 | 07-20-2016 08:09 AM | |
193 | 07-19-2016 07:16 AM | |
361 | 06-30-2016 02:00 AM | |
3709 | 05-09-2016 06:00 AM | |
1073 | 04-11-2016 05:59 PM |
03-06-2018
10:48 AM
Can you try whitelisting all the services you have installed in the node? Since this is a Sandbox, ensure all services like Datanode, Namenode etc are whitelisted.
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10-20-2016
02:20 PM
For Question 2: ensure that you have host names remain the same though the IP's change. Ambari uses Hostnames rather than ip addresses.
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08-02-2016
04:20 PM
Hbase in AMS is a standalone HBase and there is no need for hbck.
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07-27-2016
05:42 AM
@Kumar Veerappan What are the failure messages? Even if it fails, it's not too difficult to fix it.
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07-26-2016
10:38 AM
Edit ambari-agent.ini and change alert_grace_period=10 and restart the ambari-agents. This basically increases the grace period for the alerts. This may or may not work. But give it a try.
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07-26-2016
07:46 AM
Ok, this could be accessed only by customers who have purchased support license. Which version of Ambari are yo uusing?
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07-26-2016
07:08 AM
@Muthukumar S Please refer to KB Article 000004014 and increase the grace times.
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07-26-2016
06:51 AM
@Jagdish Saripella Do you have AMS up and running? Do the operations go faster if you stop AMS service?
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07-20-2016
08:09 AM
@John Martin Please post it as an idea in HCC / file an enhancement request with Apache / Hortonworks.
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07-20-2016
07:10 AM
@revan wabale Also verify and ensure that hadoop.proxyuser.hive.users/group are set to * in hdfs-configs [core-site].
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07-19-2016
07:16 AM
1 Kudo
@deepak sharma It could be as simple as checking the pid file and the corresponding process in the system. For example, for hiveserver2 the file on hiveserver2 node it would be /var/run/hive/hive_server.pid. If the process number in the file is not matching with the running hiveserver2 process, it would show the process as stopped.
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07-18-2016
01:02 PM
@Gaurav Gupta Create your own Repo of plain hadoop and provide those repo link as repositories in Ambari.
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07-01-2016
04:38 AM
@Muthukumar S How did you change hadoop.tmp.dir?
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07-01-2016
02:37 AM
2 Kudos
@revan wabale I was going through HDFS ACL Use Cases. It does look like most of the use cases can be achieved using Ranger. I'm not sure about the Sticky bit + ACL scenario though. Is there a particular use case you are looking at?
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06-30-2016
08:13 PM
@mrizvi It just takes time for Ambari to show the correct status. This should go good in the next release of Zeppelin.
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06-30-2016
08:08 PM
1 Kudo
@Srikaran Jangidi Try restarting the agent in the node and also try to re-install the clients in this node.
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06-30-2016
08:05 PM
@sharath chandra parashara Please review the Namenode log files to see if the checkpoint has been successful.
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06-30-2016
08:02 PM
1 Kudo
@Srikaran Jangidi At this moment, 'embedded'/'distributed' decides only about where the AMS collected data is stored. Distributed only means the data collected by AMS is stored in HDFS and nothing else. It uses only the local resource except for HDFS. In embedded mode, the AMS data is stored in a physical file in the location defined in /etc/ams-hbase/conf/hbase-site.xml and resides local to the node where the collector is running. Currently, there is only one Region Server in the Standalone Hbase used by AMS. Slowly AMS has started using cluster resources - for example, in the recent releases, the Cluster zookeeper could be used. At some point, we might have multiple region servers spread across the nodes in cluster as well.
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06-30-2016
07:54 PM
You are welcome! Please accept @Scott Shaw's answer!
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06-30-2016
07:51 PM
@Muthukumar S / @Rahul Pathak Shouldn't the parameter be - mapreduce.cluster.temp.dir Please review descriptions for mapred-default.xml. By default it goes to ${hadoop.tmp.dir}/mapred/temp. I'm hoping setting this should help. Also it would be useful to find the parameter for and change hadoop.tmp.dir
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06-30-2016
07:43 PM
@rkrishna Is Namenode HA enabled in the cluster? If so, the fs.defaultFS property defined in Ambari Hive view should not include the port number.
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06-30-2016
07:41 PM
@Dim Guy / @Sunile Manjee It might be required to stop the component as well before Deleting the host components in the host: curl -u admin:admin -X PUT -d '{"RequestInfo":{"context":"Stop Service"},"Body":{"ServiceInfo":{"state":"INSTALLED"}}}' http: //AMBARI_SERVER_HOST:8080/api/v1/clusters/c1/services/SERVICE_NAME
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06-30-2016
02:00 AM
2 Kudos
@james.jones If this is a production system, please reach out to Hortonworks Technical Support team. Otherwise, I hope you have copied the existing data from the old hbase.rootdir to the new hbase.rootdir. Post this if it doesn't come up good, backup hbase.tmp.dir/zookeeper and then remove hbase.tmp.dir/zookeeper/* files and retry. If the existing data is not required and you would like to completely clean up, please follow Cleaning Up AMS data. Could you please share the values for hbase.rootdir and hbase.tmp.dir from /etc/ams-hbase/hbase-site.xml file?
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06-29-2016
06:43 PM
1 Kudo
@Rahul Mishra Following is an example based on the above comment: Node1: Ambari Server, Primary Namenode, Zookeeper, Hbase Master, Clients Node2: Secondary/Standby Namenode, Hive services, PIG, OOzie, zookeeper Node3: YARN, Spark, Sqoop, Kafka, Ambari Metrics Collector/Grafana, zookeeper Node4-8: Datanode, Nodemanager, Hbase Region Servers, Clients
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06-29-2016
06:32 PM
@Vinod Nerella It looks like the Zeppelin is already installed. I hope you have followed the steps to add Zeppelin stack to Ambari as described in the link above. Do a yum list installed and check if zeppelin is already installed - if, so try removing the same using rpm -ev zeppelin and then try to install. Thanks & Rgds Venkat
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06-29-2016
06:26 PM
@Aman Mundra Please try restarting the Namenode and datanodes and then try to start the services.
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06-29-2016
11:22 AM
@Shiva Moorthy
Could you please try restarting the metadata database [postgres?] and ambari-server?
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06-29-2016
10:58 AM
@Shihab Do you have Tez jobs running in the setup for adhoc queries? Are the queues configured as documented here: Using Tez with Hive Especially, the following: <property>
<name>hive.server2.tez.default.queues</name>
<value>default</value>
</property>
<property>
<name>hive.server2.tez.sessions.per.default.queue</name>
<value>1</value>
</property> If there are going to simultaneous connections, more queues need to be defined and each queue should have 2-5 sessions.
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06-29-2016
10:53 AM
@Shihab
What is the engine used? If you do the following does it work: hive -hiveconf hive.execution.engine=mr
Please invoke hive as follows and see where it is failing:
hive -hiveconf hive.root.logger=DEBUG,console any errors would be thrown in the console, read through the same to identify the root cause. Thanks & Rgds Venkat
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