Unable to connect via AsyncElasticsearch using ssl fingerprint about elasticsearch-py HOT 1 CLOSED

Hello! And sorry for the delay in getting back to you. Unfortunately I'm not reproducing your issue. Can you please mention the version of Elasticsearch, elasticsearch-py and elastic-transport-python, as well as your Python version?

Note that if you are using Python 3.10 and above, the Elasticsearch client is able to verify using any certificate in the chain, including the root certificate authority, but AsyncElasticsearch does not support that. So if you're for example using the fingerprint of the root certificate authority, it is expect that it works with Elasticsearch but not AsyncElasticsearch. To check that, you can give a different fingerprint to Elasticsearch, and it will report the certificates of the chain, like this (the formatting is mine):

elastic_transport.TlsError: TLS error caused by: TlsError(
    TLS error caused by: SSLError(
        Fingerprints did not match.
        Expected "fd6e9b0ef398bcd904c3b2ec167a7b0fda7201c903c53a6a6ae5d0414363ef65", got
        "dc179eb67a0d04ab6d635e4ff2ffb3c3150a3c589e2b8af7b71ca840f28f3f7b",
        "67add1166b020ae61b8f5fc96813c04c2aa589960796865572a3c7e737613dfd",
        "96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6".
    )
)

And then you have to make sure to use the first certificate (dc179eb67a0d04ab6d635e4ff2ffb3c3150a3c589e2b8af7b71ca840f28f3f7b in this case) when using AsyncElasticsearch.

from elasticsearch-py.