David Turner f6055dc9b2 Suppress noisy SSL exceptions (#61359)
If a TLS-protected connection closes unexpectedly then today we often
emit a `WARN` log, typically one of the following:

    io.netty.handler.codec.DecoderException: javax.net.ssl.SSLHandshakeException: Insufficient buffer remaining for AEAD cipher fragment (2). Needs to be more than tag size (16)

    io.netty.handler.codec.DecoderException: javax.net.ssl.SSLException: Received close_notify during handshake

We typically only report unexpectedly-closed connections at `DEBUG`
level, but these two messages don't follow that rule and generate a lot
of noise as a result. This commit adjusts the logging to report these
two exceptions at `DEBUG` level only.
2020-08-27 10:59:39 +01:00
..