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addition of nodes doesnt update the slave and regionservers file

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addition of nodes doesnt update the slave and regionservers file

We had a 5 node cluster (2 master and 3 slave nodes). Recently we added 4 more slave nodes. all of this is through ambari. One strange thing we noticed is in all the existing 5 nodes , the /etc/hadoop/conf/slaves and /etc/hbase/conf/regionservers didnt get the entries of the newly added nodes (they have only the 3 slave entries). but the newly added nodes have all the entries for all the 7 hosts. why is it so?

I believe this will cause an issue when we restart. start/stop the hbase service.

but amabri dashboard shows all 7 slaves and we are able to run jobs on all 7 slaves too.

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Re: addition of nodes doesnt update the slave and regionservers file

Guru

Ambari does not use these files for managing the HBase service. Those files are only used for custom scripts that come with HBase (bin/start-hbase.sh, etc) which is not needed in an Ambari setup.

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Re: addition of nodes doesnt update the slave and regionservers file

Guru

Ambari does not use these files for managing the HBase service. Those files are only used for custom scripts that come with HBase (bin/start-hbase.sh, etc) which is not needed in an Ambari setup.

Re: addition of nodes doesnt update the slave and regionservers file

@ARUN

As @Enis clarified, there will be no impact on your start/stop. If you have custom scripts then you may want fix those files to show all slaves. I have no explanation yet of why the files in the existent slave nodes did not get updated, but you are safe for start/stop.