Member since
12-05-2016
17
Posts
2
Kudos Received
0
Solutions
01-07-2017
05:05 PM
I understood now that all basic components have to be deployed on available resources and later they should be moved to new nodes as and when they are added into cluster Thanq for your time
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01-07-2017
05:02 PM
Thanq @Tom McCuch, Thanq so much. Sorry for late response, I have been travelling.
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01-04-2017
06:42 AM
2 Kudos
we are a small community of engineers who train college freshers on hadoop,linux and other opensource technologies
like name node HA configuration and failover activity, could people provide more scenarios for us tosimulate real time issues
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Labels:
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Apache Hadoop
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Apache Spark
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Apache YARN
01-03-2017
03:20 PM
I have installed the hdfs client package manually , problem solved
ofcourse I had to manually install nc rpm
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01-03-2017
11:36 AM
I tried restarting (stop & start) all services in the cluster , during that process, the pending installation kicked off and wassuccessful
I am not sure of the internal architecture
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01-03-2017
10:41 AM
@jspeidel so if we want to install few additional services ABC after a cluster is setup with few XYZ services , it is not possible??
I am unsure of the technicalities but this way it will be a problem for companies running analytics as a service
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01-03-2017
10:09 AM
Is it possible to install zookeeper after few days of cluster setup? I mean due to budget constraints we could fetch few servers at a later stage.
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01-02-2017
08:22 AM
I restarted the ambari-agent services and was able to reregister
we also have an option of
ambari-agent reset hdp_server_name
this was also required on other 2 hosts
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01-01-2017
04:26 AM
in my case, version of Ambari and Python mismatched, I installed a lower version of Ambari and it started to work
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12-20-2016
06:48 AM
Thank you now the option of enabling HA is seen in 'service options'
It could have been simpler if this kind of curl options are provided in GUI with a pasword proected and role based access control. I do understand the sensitivity behind this.
thanks again.
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12-19-2016
03:11 PM
I deployed it manually, not a blue print.
I didnt feel the need for a secondary namenode service to run on the same node, so deleted the option using "CURL" commands
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12-19-2016
03:11 PM
I had only 3 machines with me, so I configured 1 as name node, and later added 2 more data nodes.
Now I am trying to configure a new node as secondary name node. Is it not possible in a running configuration that I add a node and configure it to be a secondary name node?
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12-19-2016
02:44 PM
I am unable to see ha configuration wizard in hdfs service actions.
this is a running cluster with a single name node, i mean initially i was not able to add a secondary name node can someone pls assist here
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Labels:
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Apache Hadoop
12-17-2016
02:23 PM
It will be great to know what was done to fix the issue, I mean to ask what changes were made in which files
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12-08-2016
12:19 PM
my assumption was correct
the datanodes (prbly everynode) will have a uuid which was same and hence this issue,
i removed the install software, diectories and files, then reregisterd which worked fine later
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12-07-2016
02:50 PM
I deployed a clusteron vmware and becuae I was having issues to add additional node, I have cloned a VM, changed hostname and up and added the datanode manually.
As I was seeing just one datanode on dashboard, I tried making all changes as suggested here which actually didnt work.
As soon as I shutdown the an active datanode , the second one started to show up. Any clues what was happening in back end?
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