Member since
09-29-2015
140
Posts
87
Kudos Received
9
Solutions
My Accepted Solutions
Title | Views | Posted |
---|---|---|
1587 | 07-20-2016 08:09 AM | |
541 | 07-19-2016 07:16 AM | |
910 | 06-30-2016 02:00 AM | |
7416 | 05-09-2016 06:00 AM | |
2115 | 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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08-02-2016
04:20 PM
Hbase in AMS is a standalone HBase and there is no need for hbck.
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07-20-2016
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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06-30-2016
07:54 PM
You are welcome! Please accept @Scott Shaw's answer!
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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
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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06-29-2016
05:39 AM
@Eric Periard Please use this article and see if the previous upgrade went good using, Using Ambari to check when upgrade / downgrade seem to be stuck If everything looks good for the hosts / versions [ie there shouldn't be any in INSTALL_FAILED state], then the finalization could help - else those need to be fixed first.
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06-24-2016
07:00 AM
@Aman Mundra Try to restart NN services using Ambari post installation. If it fails to come up, review the namenode log file to find what the issue is.
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06-13-2016
10:26 AM
You could install a Standalone Ambari server for the purpose of Ambari View. Please check Standalone Ambari Views server in the Same. There aren't any other solution from HDP which would support your requirement.
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06-13-2016
09:35 AM
@Kaliyug Antagonist Setup a Local Repository in this scenario. Refer to Ambari Install guide for the same.
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06-13-2016
09:32 AM
@Facundo Bianco Is it a fresh installation of the cluster? It's strange that in a fresh cluster installation, there are entries in alert_notice table. What is observed when you do a select * from alert_notice ? how many rows are returned? Please backup the database using mysql dump and then try to remove a row from this table to check the privileges [without committing]
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06-13-2016
09:26 AM
@charan tej You have to setup Ambari-Views to achieve this. Please review Ambari Views guide for the same.
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06-02-2016
04:17 AM
@Robert Mroczkowski the only change management which is available is config change management as pointed out by @Sri Bandaru A limited change management with respect to services / components can be achieved by manually backing up Ambari db before doing any changes,
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06-01-2016
11:58 AM
@suresh krish Is this a test system? Are the values for the following modified from default
dfs.namenode.checkpoint.period, set to 1 hour by default, specifies the maximum delay between two consecutive checkpoints dfs.namenode.checkpoint.txns, set to 1 million by default, defines the number of uncheckpointed transactions on the NameNode which will force an urgent checkpoint, even if the checkpoint period has not been reached. You could go to the Namenode current folder and check when was the last fsimage created. Was the cluster down for long? You may want to review the above two parameters and check the timestamps in the current folder and find why automatic checkpointing is not happening. You could use the steps provided by @Sri Bandaru to do a checkpoint manually if you could get downtime.
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05-09-2016
11:04 AM
1 Kudo
Are you connected to the hbase master system as listed by Ambari? If so, hbase isn't correctly installed for some reason. Is this a test cluster? If so please remove HBase using API and add it back using Ambari add service. You could refer Cwik pages for the same.
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05-09-2016
07:14 AM
1 Kudo
I suspect that hbase is not correctly installed. When you go to /usr/hdp/current/hbase*/lib, do you find jar files? could you please list them?
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05-09-2016
06:00 AM
@Raghu Ramamoorthi When you try to start Hbase manually, the classpath needs to be correctly set. In this case it looks like the classpath for hbase is not correctly set. You could review hbase-env in Ambari Hbase configs to check what you need to set before actually running the command manually. Or /etc/hbase/conf/hbase-env.sh in the node where hbase is installed. We should focus on the reason for the Hbase to go down after you start from Ambari. Please check /var/log/hbase/hbase*master*log to check why it failed after the service start up came up good. That would help in resolving your issue.
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05-05-2016
04:54 PM
@Dipika Baad Is Hive up and running and accessible using hive client or beeline? Please check for statement used by the Alert to report this issue.
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04-14-2016
06:22 AM
1 Kudo
@Kuldeep Kulkarni Yes - we could run "ambari-server setup-security" and select the option for Encryption. Ambari Encrypt passwords
Its better to use Ambari 2.2 or above, wherein clear text passwords are taken care of.
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04-13-2016
07:10 PM
@Andrew Watson You could put up a script to check for the services and restart them for this period. But as @Sagar Shimpi pointed out, you might have to take care of some of the services. Also ensure that dependent HDP dependent components like Java / Python are not upgraded during this patching. If they are to be, it needs to be tested ahead.
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04-13-2016
04:09 AM
Also, it is important to take a backup of the Ambari database before doing any API add/delete service operations.
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04-11-2016
05:59 PM
@Roberto Sancho Does this host lnxbigO4.cajarural.gcr exist at all? Could you please invoke the following URL and check for existence of this node and the services running on them: http://:8080/api/v1/clusters//hosts>:8080/api/v1/clusters/<cluster_name>/hosts Then drill down on this host to check the services installed. If ATS is listed here, copy the URL, ensure that it really is not required and invoke an appropriate API to delete the service as listed in the Ambari Cwiki page Is this a test cluster? if so, please obtain the following from ambari db: select hostname from hosts; select * from hostcomponentstate; select * from hostcomponentdesiredstate; Thanks & Rgds Venkat
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04-08-2016
04:29 AM
@Arvind Kandaswamy Is this resolved?
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04-08-2016
04:17 AM
@Arvind Kandaswamy As long as you have a folder called /local in the node where you are installing file:///local/var/lib/ambari-metrics-collector/hbase is a good value for hbase.rootdir. You can ignore the error and proceed. But please note that AMS might be writing loads of data - so it's always better to keep it away from datanode locations.
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