NettyTransiever doesn't call RPCPlugin.clientReceiveResponse on the same thread
as clientSendRequest
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Key: AVRO-949
URL: https://issues.apache.org/jira/browse/AVRO-949
Project: Avro
Issue Type: Bug
Affects Versions: 1.5.4, 1.6.0
Reporter: Philip Zeyliger
RPCPlugin.clientReceiveResponse() is called in the Netty IO thread when using a
NettyTransceiver. This is quite different than how HTTPTransceiver does it.
Users can use RPCPlugin to do things like tracing and timing. It's bizarre that
clientSendRequest() happens in the caller's thread, but clientReceiveResponse()
happens in a different one, because thread locals are one of the easiest way to
pass information between these. There's no easy other way, since RPCContext,
which is passed along, has no way to associate arbitrary data with itself.
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