v3.12.0: visit grid console will see"DefaultRemoteProxy unknown version,Failed to connect to ****"

[oceanchow]

Meta -

OS: Win7

Selenium Version: V3.12.0

Browser:

Browser Version:

Expected Behavior - monitor the Grid via ip(hub): 4444/grid/console, will see the node status list quickly, actually, from V3.9.1 to V3.11.0 really work.

Actual Behavior - show the node status list very slowly and in the top of each node unit will show a message "DefaultRemoteProxy unknown version,Failed to connect to node**/...:5555

Steps to reproduce -

1 start hub by run bat
TITLE SELENIUM_HUB
set SERVER_PORT=4444
set JAR_NAME=selenium-server-standalone-3.12.0.jar
java -jar %JAR_NAME% -port %SERVER_PORT% -role hub -timeout 600 -browserTimeout 3600
2 start one node by run bat(even though change the NODE_HOSTNAME from host name to host ip, still saw the same problem)
TITLE SELENIUM_NODE

set HUB_NAME= ...
set NODE_HOSTNAME=***
set HUB_PORT=4444
set NODE_PORT=5555
set DRIVER_PATH_IE=C:\SeleniumGrid\IEDriverServer.exe
set NODE_CHROME_EXE_PATH=C:/Program Files (x86)/Google/Chrome/Application/chrome.exe
set DRIVER_PATH_CHROME=C:\SeleniumGrid\chromedriver.exe
set DRIVER_PATH_FIREFOX=C:\SeleniumGrid\geckodriver.exe
set JAR_NAME=selenium-server-standalone-3.12.0.jar
set MAX_INSTANCES=3
set MAX_SESSION=3

java -Dwebdriver.chrome.driver=%DRIVER_PATH_CHROME% -Dwebdriver.ie.driver=%DRIVER_PATH_IE% -Dwebdriver.gecko.driver=%DRIVER_PATH_FIREFOX% -jar %JAR_NAME% -maxSession %MAX_SESSION% -role node -browser "browserName=internet explorer,maxInstances=%MAX_INSTANCES%,platform=WINDOWS" -browser "browserName=chrome,maxInstances=%MAX_INSTANCES%,chrome_binary=%NODE_CHROME_EXE_PATH%,platform=WINDOWS" -browser "browserName=firefox,maxInstances=%MAX_INSTANCES%,platform=WINDOWS" -port %NODE_PORT% -host %NODE_HOSTNAME% -hub http://%HUB_NAME%:%HUB_PORT%/grid/register

[oceanchow]

screenshot for the problem

[barancev]

Hosts that run nodes are not available from the host that runs the hub.
It's a network misconfiguration, not a Selenium issue.

[oceanchow]

@barancev As you can see my description, same configuration work from V3.9.1 to V3.11.0, why only V3.12.0 show error?

[barancev]

Please run hub with -debug option, attach a node to this hub, and provide the hub log for investigation.
Do the same for a version that works (e.g. 3.11) so we can compare the logs.

[oceanchow]

@barancev sure, will do it later. thanks for your help.

[liulirun]

I have seen the exactly same issue: providing logs from hub side, with -debug option

[liulirun]

with v3.12

C:\Selenium>java -jar selenium-server-standalone-3.12.0.jar -role hub -debug

14:30:39.489 INFO [GridLauncherV3.launch] - Selenium build info: version: '3.12.
0', revision: '7c6e0b3'
14:30:39.492 INFO [GridLauncherV3$2.launch] - Launching Selenium Grid hub on por
t 4444
2018-06-07 14:30:39.906:INFO::main: Logging initialized @849ms to org.seleniumhq
.jetty9.util.log.StdErrLog
14:30:40.131 INFO [Hub.start] - Selenium Grid hub is up and running
14:30:40.132 INFO [Hub.start] - Nodes should register to http://172.24.95.35:444
4/grid/register/
14:30:40.133 INFO [Hub.start] - Clients should connect to http://172.24.95.35:44
44/wd/hub
14:31:20.307 DEBUG [RegistrationServlet.process] - getting the following registr
ation request  : {"class":{"enclosingConstructor":null,"annotations":[],"memberC
lass":false,"declaredConstructors":[null,null,null,null],"declaredFields":[null,
null,null,null,null,null,null],"superclass":{"enclosingConstructor":null,"annota
tions":[],"memberClass":false,"declaredConstructors":[null],"declaredFields":[],
"superclass":null,"canonicalName":"java.lang.Object","package":null,"protectionD
omain":null,"enclosingMethod":null,"enum":false,"declaringClass":null,"construct
ors":[null],"synthetic":false,"declaredClasses":[],"name":"java.lang.Object","fi
elds":[],"classLoader":null,"primitive":false,"methods":[null,null,null,null,nul
l,null,null,null,null],"classes":[],"typeName":"java.lang.Object","declaredMetho
ds":[null,null,null,null,null,null,null,null,null,null,null,null],"modifiers":1,
"interface":false,"genericInterfaces":[],"annotatedSuperclass":null,"typeParamet
ers":[],"array":false,"enumConstants":null,"annotatedInterfaces":[],"class":"jav
a.lang.Class","annotation":false,"componentType":null,"declaredAnnotations":[],"
interfaces":[],"genericSuperclass":null,"localClass":false,"enclosingClass":null
,"signers":null,"simpleName":"Object","anonymousClass":false},"canonicalName":"o
rg.openqa.grid.common.RegistrationRequest","package":{"specificationVendor":"Ora
cle Corporation","declaredAnnotations":[],"implementationVersion":"9.4.7.v201709
14","sealed":false,"annotations":[],"implementationTitle":"HttpComponents Apache
 HttpClient Mime","hCode":-250690871,"packages":[null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null],"specificationTitle":"HttpComp
onents Apache HttpClient Mime","name":"org.openqa.grid.common","implementationVe
ndor":"Eclipse.org - Jetty","class":"java.lang.Package","specificationVersion":"
3.1"},"protectionDomain":{"classLoader":null,"permissions":null,"principals":[],
"codeSource":null,"class":"java.security.ProtectionDomain"},"enclosingMethod":nu
ll,"enum":false,"declaringClass":null,"constructors":[null,null,null,null],"synt
hetic":false,"declaredClasses":[],"name":"org.openqa.grid.common.RegistrationReq
uest","fields":[null,null,null],"classLoader":{"parent":null,"systemClassLoader"
:null,"uRLs":["file:/C:/Selenium/selenium-server-standalone-3.12.0.jar"],"class"
:"sun.misc.Launcher$AppClassLoader"},"primitive":false,"methods":[null,null,null
,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null
],"classes":[],"typeName":"org.openqa.grid.common.RegistrationRequest","declared
Methods":[null,null,null,null,null,null,null,null,null,null],"modifiers":1,"inte
rface":false,"genericInterfaces":[],"annotatedSuperclass":{"declaredAnnotations"
:[],"annotations":[],"type":null,"class":"sun.reflect.annotation.AnnotatedTypeFa
ctory$AnnotatedTypeBaseImpl"},"typeParameters":[],"array":false,"enumConstants":
null,"annotatedInterfaces":[],"class":"java.lang.Class","annotation":false,"comp
onentType":null,"declaredAnnotations":[],"interfaces":[],"genericSuperclass":{"e
nclosingConstructor":null,"annotations":[],"memberClass":false,"declaredConstruc
tors":[null],"declaredFields":[],"superclass":null,"canonicalName":"java.lang.Ob
ject","package":null,"protectionDomain":null,"enclosingMethod":null,"enum":false
,"declaringClass":null,"constructors":[null],"synthetic":false,"declaredClasses"
:[],"name":"java.lang.Object","fields":[],"classLoader":null,"primitive":false,"
methods":[null,null,null,null,null,null,null,null,null],"classes":[],"typeName":
"java.lang.Object","declaredMethods":[null,null,null,null,null,null,null,null,nu
ll,null,null,null],"modifiers":1,"interface":false,"genericInterfaces":[],"annot
atedSuperclass":null,"typeParameters":[],"array":false,"enumConstants":null,"ann
otatedInterfaces":[],"class":"java.lang.Class","annotation":false,"componentType
":null,"declaredAnnotations":[],"interfaces":[],"genericSuperclass":null,"localC
lass":false,"enclosingClass":null,"signers":null,"simpleName":"Object","anonymou
sClass":false},"localClass":false,"enclosingClass":null,"signers":null,"simpleNa
me":"RegistrationRequest","anonymousClass":false},"configuration":{"unregisterIf
StillDownAfter":60000,"role":"node","debug":false,"capabilities":[{"browserName"
:"chrome","maxInstances":5,"platform":"WIN8_1","platformName":"WIN8_1","selenium
Protocol":"WebDriver","server:CONFIG_UUID":"f45234a5-19cb-4605-a74a-0b9d922f8c00
"}],"remoteHost":"http://172.24.95.36:5555","custom":{},"nodeStatusCheckTimeout"
:5000,"downPollingLimit":2,"timeout":1800,"nodePolling":2000,"proxy":"org.openqa
.grid.selenium.proxy.DefaultRemoteProxy","cleanUpCycle":2000,"hub":"http://172.2
4.95.35:4444/grid/register","port":19810,"browserTimeout":0,"host":"172.24.95.36
","servlets":[],"enablePlatformVerification":true,"id":"http://172.24.95.36:5555
","withoutServlets":[],"maxSession":5,"registerCycle":10000,"register":true},"de
scription":null,"name":null}
14:31:40.828 DEBUG [BaseRemoteProxy.getNewInstance] - Using class org.openqa.gri
d.selenium.proxy.DefaultRemoteProxy
14:31:40.836 DEBUG [BaseRemoteProxy.setupTimeoutListener] - starting cleanup thr
ead
14:31:40.837 DEBUG [BaseRemoteProxy$CleanUpThread.run] - cleanup thread starting
...
14:31:40.840 INFO [DefaultGridRegistry.add] - Registered a node http://172.24.95
.36:5555
14:31:40.842 DEBUG [RegistrationServlet.lambda$process$0] - proxy added http://1
72.24.95.36:5555
14:31:44.072 DEBUG [DefaultRemoteProxy.isAlive] - Failed to check status of node
: Failed to connect to /172.24.95.36:5555
14:31:47.086 DEBUG [DefaultRemoteProxy.isAlive] - Failed to check status of node
: Failed to connect to /172.24.95.36:5555
14:31:47.088 INFO [DefaultRemoteProxy.onEvent] - Marking the node http://172.24.
95.36:5555 as down: cannot reach the node for 2 tries
14:31:50.094 DEBUG [DefaultRemoteProxy.isAlive] - Failed to check status of node
: Failed to connect to /172.24.95.36:5555

[liulirun]

with v3.11

C:\Selenium>java -jar selenium-server-standalone-3.12.0.jar -role hub -debug

14:33:41.940 INFO [GridLauncherV3.launch] - Selenium build info: version: '3.12.
0', revision: '7c6e0b3'
14:33:41.945 INFO [GridLauncherV3$2.launch] - Launching Selenium Grid hub on por
t 4444
2018-06-07 14:33:42.322:INFO::main: Logging initialized @836ms to org.seleniumhq
.jetty9.util.log.StdErrLog
14:33:42.535 INFO [Hub.start] - Selenium Grid hub is up and running
14:33:42.535 INFO [Hub.start] - Nodes should register to http://172.24.95.35:444
4/grid/register/
14:33:42.535 INFO [Hub.start] - Clients should connect to http://172.24.95.35:44
44/wd/hub
14:33:54.753 DEBUG [RegistrationServlet.process] - getting the following registr
ation request  : {"class":{"enclosingConstructor":null,"annotations":[],"memberC
lass":false,"declaredConstructors":[null,null,null,null],"declaredFields":[null,
null,null,null,null,null,null],"superclass":{"enclosingConstructor":null,"annota
tions":[],"memberClass":false,"declaredConstructors":[null],"declaredFields":[],
"superclass":null,"canonicalName":"java.lang.Object","package":null,"protectionD
omain":null,"enclosingMethod":null,"enum":false,"declaringClass":null,"construct
ors":[null],"synthetic":false,"declaredClasses":[],"name":"java.lang.Object","fi
elds":[],"classLoader":null,"primitive":false,"methods":[null,null,null,null,nul
l,null,null,null,null],"classes":[],"typeName":"java.lang.Object","declaredMetho
ds":[null,null,null,null,null,null,null,null,null,null,null,null],"modifiers":1,
"interface":false,"genericInterfaces":[],"annotatedSuperclass":null,"typeParamet
ers":[],"array":false,"enumConstants":null,"annotatedInterfaces":[],"class":"jav
a.lang.Class","annotation":false,"componentType":null,"declaredAnnotations":[],"
interfaces":[],"genericSuperclass":null,"localClass":false,"enclosingClass":null
,"signers":null,"simpleName":"Object","anonymousClass":false},"canonicalName":"o
rg.openqa.grid.common.RegistrationRequest","package":{"specificationVendor":"Ora
cle Corporation","declaredAnnotations":[],"implementationVersion":"9.4.7.v201709
14","sealed":false,"annotations":[],"implementationTitle":"HttpComponents Apache
 HttpClient Mime","hCode":-250690871,"packages":[null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null],"specificationTitle":"HttpComponent
s Apache HttpClient Mime","name":"org.openqa.grid.common","implementationVendor"
:"Eclipse.org - Jetty","class":"java.lang.Package","specificationVersion":"3.1"}
,"protectionDomain":{"classLoader":null,"permissions":null,"principals":[],"code
Source":null,"class":"java.security.ProtectionDomain"},"enclosingMethod":null,"e
num":false,"declaringClass":null,"constructors":[null,null,null,null],"synthetic
":false,"declaredClasses":[],"name":"org.openqa.grid.common.RegistrationRequest"
,"fields":[null,null,null],"classLoader":{"parent":null,"systemClassLoader":null
,"uRLs":["file:/C:/Selenium/selenium-server-standalone-3.11.0.jar"],"class":"sun
.misc.Launcher$AppClassLoader"},"primitive":false,"methods":[null,null,null,null
,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null
],"classes":[],"typeName":"org.openqa.grid.common.RegistrationRequest","declared
Methods":[null,null,null,null,null,null,null,null,null,null,null],"modifiers":1,
"interface":false,"genericInterfaces":[],"annotatedSuperclass":{"declaredAnnotat
ions":[],"annotations":[],"type":null,"class":"sun.reflect.annotation.AnnotatedT
ypeFactory$AnnotatedTypeBaseImpl"},"typeParameters":[],"array":false,"enumConsta
nts":null,"annotatedInterfaces":[],"class":"java.lang.Class","annotation":false,
"componentType":null,"declaredAnnotations":[],"interfaces":[],"genericSuperclass
":{"enclosingConstructor":null,"annotations":[],"memberClass":false,"declaredCon
structors":[null],"declaredFields":[],"superclass":null,"canonicalName":"java.la
ng.Object","package":null,"protectionDomain":null,"enclosingMethod":null,"enum":
false,"declaringClass":null,"constructors":[null],"synthetic":false,"declaredCla
sses":[],"name":"java.lang.Object","fields":[],"classLoader":null,"primitive":fa
lse,"methods":[null,null,null,null,null,null,null,null,null],"classes":[],"typeN
ame":"java.lang.Object","declaredMethods":[null,null,null,null,null,null,null,nu
ll,null,null,null,null],"modifiers":1,"interface":false,"genericInterfaces":[],"
annotatedSuperclass":null,"typeParameters":[],"array":false,"enumConstants":null
,"annotatedInterfaces":[],"class":"java.lang.Class","annotation":false,"componen
tType":null,"declaredAnnotations":[],"interfaces":[],"genericSuperclass":null,"l
ocalClass":false,"enclosingClass":null,"signers":null,"simpleName":"Object","ano
nymousClass":false},"localClass":false,"enclosingClass":null,"signers":null,"sim
pleName":"RegistrationRequest","anonymousClass":false},"configuration":{"remoteH
ost":"http://172.24.95.36:5555","id":"http://172.24.95.36:5555","capabilities":[
{"browserName":"chrome","maxInstances":5,"platform":"WIN8_1","platformName":"WIN
8_1","seleniumProtocol":"WebDriver","server:CONFIG_UUID":"38e19500-492d-4465-87b
f-68881b68f2aa"}],"downPollingLimit":2,"hub":"http://172.24.95.35:4444/grid/regi
ster","nodePolling":2000,"nodeStatusCheckTimeout":5000,"proxy":"org.openqa.grid.
selenium.proxy.DefaultRemoteProxy","register":true,"registerCycle":10000,"unregi
sterIfStillDownAfter":60000,"enablePlatformVerification":true,"cleanUpCycle":200
0,"custom":{},"host":"172.24.95.36","maxSession":5,"servlets":[],"withoutServlet
s":[],"browserTimeout":0,"debug":false,"port":5555,"role":"node","timeout":1800}
,"description":null,"name":null}
14:33:54.811 DEBUG [BaseRemoteProxy.getNewInstance] - Using class org.openqa.gri
d.selenium.proxy.DefaultRemoteProxy
14:33:54.819 DEBUG [BaseRemoteProxy.setupTimeoutListener] - starting cleanup thr
ead
14:33:54.820 DEBUG [BaseRemoteProxy$CleanUpThread.run] - cleanup thread starting
...
14:33:54.822 INFO [DefaultGridRegistry.add] - Registered a node http://172.24.95
.36:5555
14:33:54.824 DEBUG [RegistrationServlet.lambda$process$0] - proxy added http://1
72.24.95.36:5555

[oceanchow]

thanks @liulirun for your information.
I list mine in the below:
V3.11

C:\SeleniumGrid>TITLE SELENIUM_HUD

C:\SeleniumGrid>set SERVER_PORT=4444

C:\SeleniumGrid>set JAR_NAME=selenium-server-standalone-3.11.0.jar

C:\SeleniumGrid>java -jar selenium-server-standalone-3.11.0.jar -port 4444 -role
hub -debug -timeout 600 -browserTimeout 3600
21:23:02.064 INFO [GridLauncherV3.launch] - Selenium build info: version: '3.11.
0', revision: 'e59cfb3'
21:23:02.064 INFO [GridLauncherV3$2.launch] - Launching Selenium Grid hub on por
t 4444
2018-06-07 21:23:02.892:INFO::main: Logging initialized @2242ms to org.seleniumh
q.jetty9.util.log.StdErrLog
21:23:03.408 INFO [Hub.start] - Selenium Grid hub is up and running
21:23:03.408 INFO [Hub.start] - Nodes should register to http://HubIP:4
444/grid/register/
21:23:03.408 INFO [Hub.start] - Clients should connect to http://HubIP:
4444/wd/hub
21:24:13.362 DEBUG [RegistrationServlet.process] - getting the following registr
ation request : {"class":{"enclosingConstructor":null,"annotations":[],"memberC
lass":false,"declaredConstructors":[null,null,null,null],"declaredFields":[null,
null,null,null,null,null,null],"superclass":{"enclosingConstructor":null,"annota
tions":[],"memberClass":false,"declaredConstructors":[null],"declaredFields":[],
"superclass":null,"canonicalName":"java.lang.Object","package":null,"protectionD
omain":null,"enclosingMethod":null,"enum":false,"declaringClass":null,"construct
ors":[null],"synthetic":false,"declaredClasses":[],"name":"java.lang.Object","fi
elds":[],"classLoader":null,"primitive":false,"methods":[null,null,null,null,nul
l,null,null,null,null],"classes":[],"typeName":"java.lang.Object","declaredMetho
ds":[null,null,null,null,null,null,null,null,null,null,null,null],"modifiers":1,
"interface":false,"genericInterfaces":[],"annotatedSuperclass":null,"typeParamet
ers":[],"array":false,"enumConstants":null,"annotatedInterfaces":[],"class":"jav
a.lang.Class","annotation":false,"componentType":null,"declaredAnnotations":[],"
interfaces":[],"genericSuperclass":null,"localClass":false,"enclosingClass":null
,"signers":null,"simpleName":"Object","anonymousClass":false},"canonicalName":"o
rg.openqa.grid.common.RegistrationRequest","package":{"specificationVendor":"Ora
cle Corporation","declaredAnnotations":[],"implementationVersion":"9.4.7.v201709
14","sealed":false,"annotations":[],"implementationTitle":"HttpComponents Apache
HttpClient Mime","hCode":-250690871,"packages":[null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null],"specificationTitle":"HttpComponents Apache H
ttpClient Mime","name":"org.openqa.grid.common","implementationVendor":"Eclipse.
org - Jetty","class":"java.lang.Package","specificationVersion":"3.1"},"protecti
onDomain":{"classLoader":null,"permissions":null,"principals":[],"codeSource":nu
ll,"class":"java.security.ProtectionDomain"},"enclosingMethod":null,"enum":false
,"declaringClass":null,"constructors":[null,null,null,null],"synthetic":false,"d
eclaredClasses":[],"name":"org.openqa.grid.common.RegistrationRequest","fields":
[null,null,null],"classLoader":{"parent":null,"systemClassLoader":null,"uRLs":["
file:/C:/SeleniumGrid/selenium-server-standalone-3.11.0.jar"],"class":"sun.misc.
Launcher$AppClassLoader"},"primitive":false,"methods":[null,null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null],"cla
sses":[],"typeName":"org.openqa.grid.common.RegistrationRequest","declaredMethod
s":[null,null,null,null,null,null,null,null,null,null,null],"modifiers":1,"inter
face":false,"genericInterfaces":[],"annotatedSuperclass":{"declaredAnnotations":
[],"annotations":[],"type":null,"class":"sun.reflect.annotation.AnnotatedTypeFac
tory$AnnotatedTypeBaseImpl"},"typeParameters":[],"array":false,"enumConstants":n
ull,"annotatedInterfaces":[],"class":"java.lang.Class","annotation":false,"compo
nentType":null,"declaredAnnotations":[],"interfaces":[],"genericSuperclass":{"en
closingConstructor":null,"annotations":[],"memberClass":false,"declaredConstruct
ors":[null],"declaredFields":[],"superclass":null,"canonicalName":"java.lang.Obj
ect","package":null,"protectionDomain":null,"enclosingMethod":null,"enum":false,
"declaringClass":null,"constructors":[null],"synthetic":false,"declaredClasses":
[],"name":"java.lang.Object","fields":[],"classLoader":null,"primitive":false,"m
ethods":[null,null,null,null,null,null,null,null,null],"classes":[],"typeName":"
java.lang.Object","declaredMethods":[null,null,null,null,null,null,null,null,nul
l,null,null,null],"modifiers":1,"interface":false,"genericInterfaces":[],"annota
tedSuperclass":null,"typeParameters":[],"array":false,"enumConstants":null,"anno
tatedInterfaces":[],"class":"java.lang.Class","annotation":false,"componentType"
:null,"declaredAnnotations":[],"interfaces":[],"genericSuperclass":null,"localCl
ass":false,"enclosingClass":null,"signers":null,"simpleName":"Object","anonymous
Class":false},"localClass":false,"enclosingClass":null,"signers":null,"simpleNam
e":"RegistrationRequest","anonymousClass":false},"configuration":{"remoteHost":"
http://NodeName:5555","id":"http://NodeName:5555","capabilities":[{"brow
serName":"internet explorer","maxInstances":3,"platform":"WINDOWS","platformName
":"WINDOWS","seleniumProtocol":"WebDriver","server:CONFIG_UUID":"56e72e37-4df1-4
41c-bb4f-21bf179694c9"},{"browserName":"chrome","chrome_binary":"C:/Program File
s (x86)/Google/Chrome/Application/chrome.exe","maxInstances":3,"platform":"WINDO
WS","platformName":"WINDOWS","seleniumProtocol":"WebDriver","server:CONFIG_UUID"
:"4783b93e-0974-43dd-95b2-a3c6560b7aae"},{"browserName":"firefox","maxInstances"
:3,"platform":"WINDOWS","platformName":"WINDOWS","seleniumProtocol":"WebDriver",
"server:CONFIG_UUID":"5a052f12-cc48-4d11-b49b-586971462fc6"}],"downPollingLimit"
:2,"hub":"http://HubIP:4444/grid/register","nodePolling":5000,"nodeStat
usCheckTimeout":5000,"proxy":"org.openqa.grid.selenium.proxy.DefaultRemoteProxy"
,"register":true,"registerCycle":5000,"unregisterIfStillDownAfter":60000,"enable
PlatformVerification":true,"custom":{},"host":"NodeName","maxSession":3,"ser
vlets":[],"withoutServlets":[],"browserTimeout":0,"debug":false,"port":5555,"rol
e":"node","timeout":1800},"description":null,"name":null}
21:24:13.675 DEBUG [BaseRemoteProxy.getNewInstance] - Using class org.openqa.gri
d.selenium.proxy.DefaultRemoteProxy
21:24:13.690 DEBUG [BaseRemoteProxy.setupTimeoutListener] - starting cleanup thr
ead
21:24:13.706 DEBUG [BaseRemoteProxy$CleanUpThread.run] - cleanup thread starting
...
21:24:13.706 INFO [DefaultGridRegistry.add] - Registered a node http://NodeName:5555
21:24:13.706 DEBUG [RegistrationServlet.lambda$process$0] - proxy added http://NodeName:5555

[oceanchow]

V3.12

C:\SeleniumGrid>TITLE SELENIUM_HUD

C:\SeleniumGrid>set SERVER_PORT=4444

C:\SeleniumGrid>set JAR_NAME=selenium-server-standalone-3.12.0.jar

C:\SeleniumGrid>java -jar selenium-server-standalone-3.12.0.jar -port 4444 -role
hub -debug -timeout 600 -browserTimeout 3600
21:31:35.561 INFO [GridLauncherV3.launch] - Selenium build info: version: '3.12.
0', revision: '7c6e0b3'
21:31:35.561 INFO [GridLauncherV3$2.launch] - Launching Selenium Grid hub on por
t 4444
2018-06-07 21:31:36.093:INFO::main: Logging initialized @1352ms to org.seleniumh
q.jetty9.util.log.StdErrLog
21:31:36.546 INFO [Hub.start] - Selenium Grid hub is up and running
21:31:36.546 INFO [Hub.start] - Nodes should register to http://HubIP:4
444/grid/register/
21:31:36.546 INFO [Hub.start] - Clients should connect to http://HubIP:
4444/wd/hub
21:31:44.359 DEBUG [RegistrationServlet.process] - getting the following registr
ation request : {"class":{"enclosingConstructor":null,"annotations":[],"memberC
lass":false,"declaredConstructors":[null,null,null,null],"declaredFields":[null,
null,null,null,null,null,null],"superclass":{"enclosingConstructor":null,"annota
tions":[],"memberClass":false,"declaredConstructors":[null],"declaredFields":[],
"superclass":null,"canonicalName":"java.lang.Object","package":null,"protectionD
omain":null,"enclosingMethod":null,"enum":false,"declaringClass":null,"construct
ors":[null],"synthetic":false,"declaredClasses":[],"name":"java.lang.Object","fi
elds":[],"classLoader":null,"primitive":false,"methods":[null,null,null,null,nul
l,null,null,null,null],"classes":[],"typeName":"java.lang.Object","declaredMetho
ds":[null,null,null,null,null,null,null,null,null,null,null,null],"modifiers":1,
"interface":false,"genericInterfaces":[],"annotatedSuperclass":null,"typeParamet
ers":[],"array":false,"enumConstants":null,"annotatedInterfaces":[],"class":"jav
a.lang.Class","annotation":false,"componentType":null,"declaredAnnotations":[],"
interfaces":[],"genericSuperclass":null,"localClass":false,"enclosingClass":null
,"signers":null,"simpleName":"Object","anonymousClass":false},"canonicalName":"o
rg.openqa.grid.common.RegistrationRequest","package":{"specificationVendor":"Ora
cle Corporation","declaredAnnotations":[],"implementationVersion":"9.4.7.v201709
14","sealed":false,"annotations":[],"implementationTitle":"HttpComponents Apache
HttpClient Mime","hCode":-250690871,"packages":[null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,n
ull,null,null,null,null,null,null,null],"specificationTitle":"HttpComponents Apa
che HttpClient Mime","name":"org.openqa.grid.common","implementationVendor":"Ecl
ipse.org - Jetty","class":"java.lang.Package","specificationVersion":"3.1"},"pro
tectionDomain":{"classLoader":null,"permissions":null,"principals":[],"codeSourc
e":null,"class":"java.security.ProtectionDomain"},"enclosingMethod":null,"enum":
false,"declaringClass":null,"constructors":[null,null,null,null],"synthetic":fal
se,"declaredClasses":[],"name":"org.openqa.grid.common.RegistrationRequest","fie
lds":[null,null,null],"classLoader":{"parent":null,"systemClassLoader":null,"uRL
s":["file:/C:/SeleniumGrid/selenium-server-standalone-3.12.0.jar"],"class":"sun.
misc.Launcher$AppClassLoader"},"primitive":false,"methods":[null,null,null,null,
null,null,null,null,null,null,null,null,null,null,null,null,null,null,null],"cla
sses":[],"typeName":"org.openqa.grid.common.RegistrationRequest","declaredMethod
s":[null,null,null,null,null,null,null,null,null,null],"modifiers":1,"interface"
:false,"genericInterfaces":[],"annotatedSuperclass":{"declaredAnnotations":[],"a
nnotations":[],"type":null,"class":"sun.reflect.annotation.AnnotatedTypeFactory$
AnnotatedTypeBaseImpl"},"typeParameters":[],"array":false,"enumConstants":null,"
annotatedInterfaces":[],"class":"java.lang.Class","annotation":false,"componentT
ype":null,"declaredAnnotations":[],"interfaces":[],"genericSuperclass":{"enclosi
ngConstructor":null,"annotations":[],"memberClass":false,"declaredConstructors":
[null],"declaredFields":[],"superclass":null,"canonicalName":"java.lang.Object",
"package":null,"protectionDomain":null,"enclosingMethod":null,"enum":false,"decl
aringClass":null,"constructors":[null],"synthetic":false,"declaredClasses":[],"n
ame":"java.lang.Object","fields":[],"classLoader":null,"primitive":false,"method
s":[null,null,null,null,null,null,null,null,null],"classes":[],"typeName":"java.
lang.Object","declaredMethods":[null,null,null,null,null,null,null,null,null,nul
l,null,null],"modifiers":1,"interface":false,"genericInterfaces":[],"annotatedSu
perclass":null,"typeParameters":[],"array":false,"enumConstants":null,"annotated
Interfaces":[],"class":"java.lang.Class","annotation":false,"componentType":null
,"declaredAnnotations":[],"interfaces":[],"genericSuperclass":null,"localClass":
false,"enclosingClass":null,"signers":null,"simpleName":"Object","anonymousClass
":false},"localClass":false,"enclosingClass":null,"signers":null,"simpleName":"R
egistrationRequest","anonymousClass":false},"configuration":{"unregisterIfStillD
ownAfter":60000,"role":"node","debug":false,"capabilities":[{"browserName":"inte
rnet explorer","maxInstances":3,"platform":"WINDOWS","platformName":"WINDOWS","s
eleniumProtocol":"WebDriver","server:CONFIG_UUID":"662d7228-5a0e-47e8-9b1f-52d8e
f3df230"},{"browserName":"chrome","chrome_binary":"C:/Program Files (x86)/Google
/Chrome/Application/chrome.exe","maxInstances":3,"platform":"WINDOWS","platformN
ame":"WINDOWS","seleniumProtocol":"WebDriver","server:CONFIG_UUID":"916359c9-007
a-4418-8b27-5a7f2791f9da"},{"browserName":"firefox","maxInstances":3,"platform":
"WINDOWS","platformName":"WINDOWS","seleniumProtocol":"WebDriver","server:CONFIG
_UUID":"9dca6c84-a35e-469e-b193-bcbe0900c8fd"}],"remoteHost":"http://NodeName:5555","custom":{},"nodeStatusCheckTimeout":5000,"downPollingLimit":2,"timeout"
:1800,"nodePolling":5000,"proxy":"org.openqa.grid.selenium.proxy.DefaultRemotePr
oxy","hub":"http://HubIP:4444/grid/register","port":5555,"browserTimeou
t":0,"host":"NodeName","servlets":[],"enablePlatformVerification":true,"id":
"http://NodeName:5555","withoutServlets":[],"maxSession":3,"registerCycle":5
000,"register":true},"description":null,"name":null}
21:31:44.578 DEBUG [BaseRemoteProxy.getNewInstance] - Using class org.openqa.gri
d.selenium.proxy.DefaultRemoteProxy
21:31:44.593 DEBUG [BaseRemoteProxy.setupTimeoutListener] - starting cleanup thr
ead
21:31:44.609 DEBUG [BaseRemoteProxy$CleanUpThread.run] - cleanup thread starting
...
21:31:44.609 INFO [DefaultGridRegistry.add] - Registered a node http://NodeName:5555
21:31:44.609 DEBUG [RegistrationServlet.lambda$process$0] - proxy added http://NodeName:5555
21:32:11.111 DEBUG [DefaultRemoteProxy.isAlive] - Failed to check status of node
: Failed to connect to NodeName/NodeIP:5555
21:32:37.144 DEBUG [DefaultRemoteProxy.isAlive] - Failed to check status of node
: Failed to connect to NodeName/NodeIP:5555
21:32:37.238 INFO [DefaultRemoteProxy.onEvent] - Marking the node http://NodeName:5555 as down: cannot reach the node for 2 tries