Use index to judge data,but not found

Elastic Stack Elasticsearch
1

please help me.
I got many data of the same type. In some cases, the known data must exist, but I need to further confirm which index the data is under. I chose to judge in the following way, but cannot found then throw exception.
This happens occasionally . elasticsearch version : 6.8.23，3 nodes
example:

( indexs is this type of elasticsearch indexs )
for (String index:indexs){
                exists = client.prepareGet(index, model, id)
                        .setFetchSource(false)
                        .execute()
                        .actionGet().isExists();
                if(exists){
                    return index;
                }
            }

        throw new RuntimeException("cannot fount index");
2

This is a very old version, which has been EOL a long time. I would recommend you upgrade to a supported version.

What is the size, topology and configuration of your cluster?

3

3 nodes

4

How are they configured? If all your 3 nodes are master eligible, have you set discovery.zen.minimum_master_nodes in your config to 2 in order to avoid split brain scenarios?

5

yes, i do, and i checked the es log at that time and there was nothing abnormal.

6

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