Inconsistent node role display for the same configuration

Elasticsearch version: 7.16.2

In our case, all data nodes in elasticsearch.yml file are configured as

node.roles: [data_hot, data_content, ]

But running cat node in dev tool we see inconsistent node role display, some of the data nodes are marked as d, the rest is marked as hs, for example:

ip           heap.percent ram.percent cpu load_1m load_5m load_15m node.role master name           38          99   5    0.74    0.60     0.60 d         -           27          99  10    0.54    0.83     0.94 hs        -

Does anyone know the reason for this, thanks!

Did you upgrade from an earlier version recently? If so, try another rolling restart.

Hi @DavidTurner

Yes, we upgraded from version 7.6.x. Thanks for your suggestion, will have a try (tried, it works!).

Do you know the possible reason why this happened? Kind of curious.

I think there's a small bug that affects upgrades from very old versions in this way, depending on the order in which nodes were upgraded.

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