Hi There, I noticed this issue during high load. A very simple example, I ran
curl "http://localhost:8080/heath"; it returned in 10+ seconds; however when I look at the request log, the latency is logged as tens of milli seconds. I profiled my server and qtp threads are not under heavy load. I turned on debug and found the following: 19:09:26.632:DBUG:oeji.SelectChannelEndPoint:qtp1963485345-43-selector-ServerConnectorManager@14a6d5e4/2: Key interests updated 1 -> 0 on SelectChannelEndPoint@199c8743{/ 127.0.0.1:46061 <->8080,Open,in,out,R,-,7/30000,HttpConnection}{io=1,kio=0,kro=1} 19:09:26.633:DBUG:oeji.SelectChannelEndPoint:qtp1963485345-43-selector-ServerConnectorManager@14a6d5e4/2: Local interests updating 1 -> 0 for SelectChannelEndPoint@199c8743{/ 127.0.0.1:46061 <->8080,Open,in,out,R,-,8/30000,HttpConnection}{io=0,kio=0,kro=1} 19:09:26.633:DBUG:oeji.SelectorManager:qtp1963485345-43-selector-ServerConnectorManager@14a6d5e4/2: Queued change org.eclipse.jetty.io.SelectChannelEndPoint$1@1712a18 19:09:26.633:DBUG:oeji.AbstractConnection:qtp1963485345-43-selector-ServerConnectorManager@14a6d5e4/2: FILL_INTERESTED-->FILLING HttpConnection@44ced19c{FILLING} 19:09:26.634 :DBUG:oeji.SelectorManager:qtp1963485345-43-selector-ServerConnectorManager@14a6d5e4/2: Running change org.eclipse.jetty.io.SelectChannelEndPoint$1@1712a18 but after this, the onfillable happens after 10 seconds: 19:09:37.006:DBUG:oeji.ChannelEndPoint:qtp1963485345-5349: filled 99 SelectChannelEndPoint@199c8743{/127.0.0.1:46061 <->8080,Open,in,out,-,-,10381/30000,HttpConnection}{io=0,kio=0,kro=1} Can any please help me fiture out what exactly happened after the HttpConnection turns into FILLING state and what caused the onfillable to be invoked after 10+ seconds? My environment: Server: 8 cores, 30 G memory Jetty: 9.2x Acceptor: 4 (default was 2, tried to increase to see difference but no help) Selector: 16 (default was 8, tried to increase to see difference but no help) Executor: 48 Thanks, Jing
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