Cassadra migration

Solved1.22K viewsCassandra migration
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Hi Dojo,

Is there a way to move Cassandra DB from one HD to another?

We are copying manually the files and editing the config yaml but is not working.

Thanks in advance.

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 14th July 2023

2 Answers

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Hi,

Adding to the answer of Jeroen, the procedure is also described in the help: Moving the Cassandra database to a different disk drive | DataMiner Docs

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 14th July 2023
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Hi Manuel,

I haven't done this in a while but the procedure I would use in such case would be:

  1. Nodetool drain on the node on which you want to apply the change.
  2. Stop the Cassandra service.
  3. Copy the dataset from the old location to the new location in the filesystem.
  4. Adjust the yaml settings file to point to the new location in the filesystem.
  5. Start the Cassandra service.

That should in my mind get it done.

Jeroen Nietvelt [SLC] [DevOps Advocate] Answered question 16th June 2022