Hi Ashok - This is a new one on me. I don't see anywhere that it is being reset but will continue to dig around a bit.
Not sure why you would want to set it to 98 ms either though. I will let you know what I find. thanks, --larry On Thu, Apr 19, 2018 at 7:04 AM, Ashok V Jose <[email protected]> wrote: > Hi Knox Experts, > > Needed a help incase you are aware of this issue. > > We have this scenario where in we are creating 20 python kernels > concurrently, we see that of these around 6-7 kernels fail with "Exception: > Remote host closed websocket" because of timeout. > > When we tried the same testcase outside of the knox, we did not see the > issue. All the kernels got created ok. > > So we suspected something in knox which is causing the issue, since the > failure is because of the timeout imposed, from the ambari console we > changed these 2 parameters “gateway.idle.timeout" and > "gateway.websocket.idle.timeout" to different values and ran the testcase. > > However we see in the knox logs that although we have set the > "gateway.websocket.idle.timeout" to 98 it is being reset to 300000. > > We see that idleTimeout is 98 , however it resets and becomes 300000 later > on. > > So basically it looks like whatever we set is being overwritten to 300000, > is this something you would know ? > > Here are the 2 lines which shows the values of idleTimeout to 98 and > 300000. > > 2018-04-13 09:17:38,266 DEBUG events.AbstractEventDriver > (AbstractEventDriver.java:openSession(223)) - > openSession(WebSocketSession[websocket=JettyListenerEventDriver[org. > apache.hadoop.gateway.websockets.ProxyWebSocketAdapter], > behavior=SERVER,connection=WebSocketServerConnection@3016d0df[IDLE, > DecryptedEndPoint@65fc705{/xx.xxx.xxx.xxx:xxxxx<->8443,Open, > in,out,-,-,116/98,WebSocketServerConnection}-> > SelectChannelEndPoint@2dd64f54{/xx.xxx.xxx.xxx:xxxxx<->8443, > Open,in,out,-,-,1/98,SslConnection}{io=0,kio=0,kro= > 1}]{f=Flusher[queueSize=0,aggregateSize=0,failure=null], > g=Generator[SERVER,validating],p=Parser@faa724f[ > ExtensionStack,s=START,c=0,len=0,f=null,p=WebSocketPolicy@430a35ac[ > behavior=SERVER,maxTextMessageSize=2147483647,maxTextMessageBufferSize= > 32768,maxBinaryMessageSize=2147483647,maxBinaryMessageBufferSize= > 32768,asyncWriteTimeout=60000,idleTimeout=98,inputBufferSize=4096]]}, > remote=WebSocketRemoteEndpoint@63617fae[batching=true],incoming= > JettyListenerEventDriver[org.apache.hadoop.gateway.websockets. > ProxyWebSocketAdapter],outgoing=ExtensionStack[queueSize=0,extensions=[], > incoming=org.eclipse.jetty.websocket.common.WebSocketSession,outgoing=org. > eclipse.jetty.websocket.server.WebSocketServerConnection]]) > > 2018-04-13 09:17:40,535 DEBUG component.ContainerLifeCycle > (ContainerLifeCycle.java:addBean(324)) - WebSocketSession[websocket= > JsrAnnotatedEventDriver[websocket=org.apache.hadoop.gateway.websockets. > ProxyInboundSocket@66217bd6],behavior=CLIENT,connection= > WebSocketClientConnection@1fcb3472[IDLE,SelectChannelEndPoint@627d9a4b{ > chs-ksj-013-mn003.bi.services.us-south.bluemix.net/172.16.12.7:8888 > <->38356,Open,in,out,-,-,1/300000,UpgradeConnection}{io=0,kio=0, > kro=1}]{f=Flusher[queueSize=0,aggregateSize=0,failure=null], > g=Generator[CLIENT,validating],p=Parser@1eafcb18[ > ExtensionStack,s=START,c=0,len=0,f=null,p=WebSocketPolicy@4e802544[ > behavior=CLIENT,maxTextMessageSize=2147483647,maxTextMessageBufferSize= > 32768,maxBinaryMessageSize=2147483647,maxBinaryMessageBufferSize= > 32768,asyncWriteTimeout=60000,idleTimeout=300000,inputBufferSize=4096]]}, > remote=null,incoming=JsrAnnotatedEventDriver[websocket=org.apache.hadoop. > gateway.websockets.ProxyInboundSocket@66217bd6],outgoing=ExtensionStack[ > queueSize=0,extensions=[],incoming=org.eclipse.jetty. > websocket.jsr356.JsrSession,outgoing=org.eclipse.jetty.websocket.client.io > .WebSocketClientConnection]] added {ExtensionStack[queueSize=0, > extensions=[],incoming=org.eclipse.jetty.websocket. > jsr356.JsrSession,outgoing=org.eclipse.jetty.websocket.client.io. > WebSocketClientConnection],AUTO} > > This are the versions : Apache Knox: 0.12.0.2.6.2.0-205 ( > c8ad94e5bd29a6925f5a667660a50cfc6de69cc3) > HDP-2.6.2.0-205 > > Please let me know if anything more would help > > > Thanks & Regards, > Ashok Jose > > ********************************************************** > > BigInsights Quality > EGL C Block, 6th Floor > IBM India Software Labs, > Mail-Id : [email protected] > > >
