Question regarding dedicated master nodes

What will happen to elasticsearch cluster if 2 out of 3 dedicated master nodes will go down?
Let's say we have replication factor 2 and basically 2/3 of our cluster went down - we still have the data because it was replicated but only one master would remain -> Will it still work?

No. If you lose a majority of the master-eligible nodes then you will no longer have a good copy of the cluster metadata which is only stored on a majority of the master-eligible nodes. Without this metadata the data on your data nodes is essentially meaningless.


This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.