Egor Kuts created IGNITE-26624:
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Summary: Thin client shows generic “Channel is closed” when
cluster is not initialized
Key: IGNITE-26624
URL: https://issues.apache.org/jira/browse/IGNITE-26624
Project: Ignite
Issue Type: Improvement
Components: thin client
Reporter: Egor Kuts
1. Start a cluster with the thin client endpoint enabled (10800).
2. Do not initialize the cluster via management handler
/management/v1/cluster/init
3. From a Java app, create a thin client and connect to it.
4. Observe a generic exception: {{{}Caused by:
org.apache.ignite.client.IgniteClientConnectionException: IGN-CLIENT-1 Channel
is closed{}}}.
Packet capture shows:
* 3-way handshake
* Server sends FIN right away
* Client sends data, server replies RST
Proposal fix:
Call
org.apache.ignite.client.handler.ClientInboundMessageHandler#handshakeError on
the server side and pass a proper exception
Motivation:
Improve developer experience: users can’t tell why the connection fails.
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