lhotari commented on code in PR #15366:
URL: https://github.com/apache/pulsar/pull/15366#discussion_r860797741


##########
pulsar-proxy/src/main/java/org/apache/pulsar/proxy/server/ProxyConnection.java:
##########
@@ -183,11 +190,22 @@ public synchronized void 
channelInactive(ChannelHandlerContext ctx) throws Excep
 
     @Override
     public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) 
throws Exception {
-        state = State.Closing;
         super.exceptionCaught(ctx, cause);
-        LOG.warn("[{}] Got exception {} : {} {}", remoteAddress, 
cause.getClass().getSimpleName(), cause.getMessage(),
+        LOG.warn("[{}] Got exception {} : Message: {} State: {}", 
remoteAddress, cause.getClass().getSimpleName(),
+                cause.getMessage(), state,
                 ClientCnx.isKnownException(cause) ? null : cause);
-        ctx.close();
+        if (state != State.Closed) {
+            state = State.Closing;
+        }
+        if (ctx.channel().isOpen()) {

Review Comment:
   it could be called, but it it's already closed, it might not close the 
directProxyHandler (if that happens to be present). The else branch is the 
reason for adding this logic.



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