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Re-use existing HANA nodes for new HANA Database

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Hi Folks,

In our BW system landscape, we trying to re use existing HANA nodes for new HANA system. We have 7 HANA nodes where one of them is standby. We are trying to use 3 worker nodes and none of them are configured for standby or master roles.

For the 1st host , we have ran "remove host" through Landscape Administration-->Hosts--> Right click on the node and select Remove Host via HDB studio. The remove host process is completed successfully . Then using HDBLCM command line we have ran Remove Host but it failed as it could not clear some of the OS files. Then those files have been removed manually. When we login on that host to run the step again it did not show the affected hosts in the list.

But even after the restart the host is being listed in HANA studio with status as error , How to remove this host from the system information/Hosts information

For 2nd Host: When we try to run the same remove host through HDBLCM command line after completing reorg of tables successfully , it failed with error " cannot get host remove status of host 'xxx' cannot get landscape host configuration'

Because of the above we could not proceed with the activity , can you help ?

Thanks

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Answers (1)

Answers (1)

jgleichmann
Active Contributor
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At first, do not remove any files manually. It seems to be that the installation was not correct and there were some invalid authorizations. Correct them and try the remove again. All those tasks are documented very well in the guides. Now you may have a mismatch in the topology.

Please check this with this statement:

SELECT * FROM M_TOPOLOGY_TREE

You can export the current topology with this statement of hdbnsutil when DB is offline:

hdbnsutil -exportTopology <filename>

Check if note 1974115 will resolve your issue. Create a copy of /<hana shared>/<SID>/lm_structure/landscapeDescription.xml and edit it.


Regards,

Jens