Got error "No processor type exists with name [attachment]

[lxia (lynn xia)]

have installed ingest-attachment on the host, and also restart the service "sudo systemctl restart elasticsearch.service".
and get the message on the host:
elasticsearch@CNSHZ-Amarisoft-OptiPlex-7050:/usr/local/elasticsearch-7.10.0/bin$ ./elasticsearch-plugin list
ingest-attachment

But on the Kibana,
hit "GET _cat/plugins?v", got nothing.
name component version

Anyone can help me? how to troubleshooting the issue? I'am new for ES.

[dadoonet (David Pilato)]

Welcome

Did you restart the node?

[lxia (lynn xia)]

I have a query. we not only need restart the service "sudo systemctl restart elasticsearch.service"
also need restart the process elasticsearch?

[dadoonet (David Pilato)]

I believe this is restarting the node.

Could you do it and then share the whole logs here?

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[lxia (lynn xia)]

yeah, after restart the node, the issue is resolved.