Unable to invoke request: java.net.SocketException: Connection reset in Quarkus client/service

[jshandorov1]

I am having two quarkus microservices. The one (say client) calls other (server) via POST request with authorisation.
This works fine, until I restart the server microservice on deployment. Then, at the first call from client to server, I have a "SocketException: Connection reset" error [1]. The next calls are executed correctly.

Locally this is not reproduced. I've even tried to start the client locally and call the remote service, but issue is not reproduced (happens only when both are on google cloud).
Quarkus rest settings are default ones [2] (I haven't modified them).
Issue is reproduced also after some time passes. Probably the token or cache expires (still haven't found exact timing).
Happens with 2.8.2.Final and 2.6.3.Final quarkus versions.
One possible workaround for me is to retry once more in case of such failure.

I am not sure what happens here and would be happy if anyone has some hints on how to resolve this first call failure.

[1]

	[org.apa.htt.wire] (executor-thread-6) http-outgoing-5 << "[read] I/O error: Read timed out" 
	[org.apa.htt.imp.con.PoolingHttpClientConnectionManager] (executor-thread-6) Connection leased: [id: 5][route: {s}->https:/...
	[org.apa.htt.wire] (executor-thread-6) http-outgoing-5 << "[read] I/O error: Connection reset" 
	[org.apa.htt.imp.con.DefaultManagedHttpClientConnection] (executor-thread-6) http-outgoing-5: Close connection 
	[org.apa.htt.imp.con.DefaultManagedHttpClientConnection] (executor-thread-6) http-outgoing-5: Shutdown connection 
	[org.apa.htt.imp.exe.MainClientExec] (executor-thread-6) Connection discarded
	[org.apa.htt.imp.con.PoolingHttpClientConnectionManager] (executor-thread-6) Connection released: [id: 5][route: {s}->https:/...
	[org.jbo.res.cli.jax.i18n] (executor-thread-6) RESTEASY004672: Client send processing failure.: java.net.SocketException: Connection reset
	at java.base/java.net.SocketInputStream.read(SocketInputStream.java:186)
	at java.base/java.net.SocketInputStream.read(SocketInputStream.java:140)
	at java.base/sun.security.ssl.SSLSocketInputRecord.read(SSLSocketInputRecord.java:484)
	at java.base/sun.security.ssl.SSLSocketInputRecord.readHeader(SSLSocketInputRecord.java:478)
	at java.base/sun.security.ssl.SSLSocketInputRecord.bytesInCompletePacket(SSLSocketInputRecord.java:70)
	at java.base/sun.security.ssl.SSLSocketImpl.readApplicationRecord(SSLSocketImpl.java:1459)
	[com.xxx.xxx.xxx.xxx] (executor-thread-6) failed: RESTEASY004655: Unable to invoke request: java.net.SocketException: Connection reset/java.net.SocketException: Connection reset/javax.ws.rs.ProcessingException: RESTEASY004655: Unable to invoke request: java.net.SocketException: Connection reset

[2]

quarkus.rest-client.connect-timeout = 15000ms
quarkus.rest-client.read-timeout = 30000ms

[jshandorov1]

Seems similar to #15383