We are migrating an application from go 1.4.1 to 1.6.2. The application
uses a modified Gowut 0.9 as the framework and initially moved without
issue. The application server runs behind a tls sni
proxy/loadbalancer(slt). While running slt at 1.4.1 and the server at 1.6.2
no problems were encountered. We assume because 1.4.1 couldn’t http2. After
moving the slt to 1.6.2 we are experiencing runtime panics with
http2(protocol attached). Two questions:
Is the statement that http2 should just run still applicable?
And
Are use cases that fail still of interest as issues?
We have a “provisional trigger” . A client xmlHttpRequest triggered by an
attached javascript timer requests a component update and reload from the
server. Currently at 10 second intervals.
Irregularly, between the 90th and 99th request the server panics.
We are bit stuck because we have no experience with http2. Any suggestions
on how to proceed would be welcome.
Nigel Vickers
Rhewo Dev2016/10/05 14:14:24 serveHTTP Incoming: request Path /mainAppWin/e
Rhewo Dev2016/10/05 14:14:24 serveHTTP Incoming: request Body
&{0xc8205ba120 0xc8200f5180 false 0xc8204e8d00 false}
SessionDump &{LUP_NiaDLsjBFLOpsSUKLa false {63611263456 268951715 0xf36ee0}
{63611266464 12850383 0xf36ee0} map[mainAppWin:0xc8202b4ff0]
map[groups:[free admin] module:Status Lang:de hiddenPan:0xc820476000
ips:xx.xx.xx.xx user:fred2 auth:auth] 14400000000000 0xc820303f20}
Rhewo Dev2016/10/05 14:14:24 serveHTTP appName Parts 3 [ mainAppWin e]
Rhewo Dev2016/10/05 14:14:24 Event from comp: 932 event: 15
2016/10/05 14:14:24 http2: panic serving xxx.xxx.xxx.xxx:49337: runtime
error: index out of range
goroutine 2962 [running]:
net/http.(*http2serverConn).runHandler.func1(0xc82053df3f, 0xc8200f5180,
0xc82007c2a0)
/usr/local/go/src/net/http/h2_bundle.go:4050 +0xde
panic(0xb24060, 0xc82000e0d0)
/usr/local/go/src/runtime/panic.go:443 +0x521
lib.setupC5Tab(0x7f6fbe169d20, 0xc8201b0d20, 0xc820436d98, 0x7f6fbe169d20,
0xc8201b0dc0, 0x7f6fbe16a2a8, 0xc820339e60, 0x7f6fbe16a5f8, 0xc8201b0e60,
0xc82047be20)
/home/sysop/go/src/lib/rhewocompstatus.go:1310 +0x3976
lib.BuildRhewoStatus.func4(0x7f6fbe117538, 0xc8205bc300)
/home/sysop/go/src/lib/rhewocompstatus.go:168 +0xc8
github.com/icza/gowut/gwu.handlerFuncWrapper.HandleEvent(0xc82040b5c0,
0x7f6fbe117538, 0xc8205bc300)
/home/sysop/go/src/github.com/icza/gowut/gwu/event.go:441 +0x3e
github.com/icza/gowut/gwu.(*compImpl).dispatchEvent(0xc820158770,
0x7f6fbe117538, 0xc8205bc300)
/home/sysop/go/src/github.com/icza/gowut/gwu/comp.go:307 +0x167
github.com/icza/gowut/gwu.(*timerImpl).dispatchEvent(0xc820158770,
0x7f6fbe117538, 0xc8205bc300)
<autogenerated>:1302 +0x60
github.com/icza/gowut/gwu.(*serverImpl).handleEvent(0xc82019e900,
0x7f6fbe1172c0, 0xc8202fa7e0, 0x7f6fbe169998, 0xc8202b4ff0, 0x7f6fbe117170,
0xc82007c2a0, 0xc820148460)
/home/sysop/go/src/github.com/icza/gowut/gwu/server.go:815 +0x103e
github.com/icza/gowut/gwu.(*serverImpl).serveHTTP(0xc82019e900,
0x7f6fbe117170, 0xc82007c2a0, 0xc820148460)
/home/sysop/go/src/github.com/icza/gowut/gwu/server.go:683 +0x1544
github.com/icza/gowut/gwu.(*serverImpl).Start.func1(0x7f6fbe117170,
0xc82007c2a0, 0xc820148460)
/home/sysop/go/src/github.com/icza/gowut/gwu/server.go:483 +0x4c
net/http.HandlerFunc.ServeHTTP(0xc82006d450, 0x7f6fbe117170, 0xc82007c2a0,
0xc820148460)
/usr/local/go/src/net/http/server.go:1618 +0x48
net/http.(*ServeMux).ServeHTTP(0xc820070b10, 0x7f6fbe117170, 0xc82007c2a0,
0xc820148460)
/usr/local/go/src/net/http/server.go:1910 +0x213
net/http.serverHandler.ServeHTTP(0xc8200e4200, 0x7f6fbe117170,
0xc82007c2a0, 0xc820148460)
/usr/local/go/src/net/http/server.go:2081 +0x207
net/http.initNPNRequest.ServeHTTP(0xc8201d4300, 0xc8200e4200,
0x7f6fbe117170, 0xc82007c2a0, 0xc820148460)
/usr/local/go/src/net/http/server.go:2489 +0x351
net/http.(*initNPNRequest).ServeHTTP(0xc8201d8b20, 0x7f6fbe117170,
0xc82007c2a0, 0xc820148460)
<autogenerated>:253 +0xdb
net/http.(Handler).ServeHTTP-fm(0x7f6fbe117170, 0xc82007c2a0, 0xc820
/usr/local/go/src/net/http/h2_bundle.go:3847 +0x5e
net/http.(*http2serverConn).runHandler(0xc8200f5180, 0xc82007c2a0, 0
/usr/local/go/src/net/http/h2_bundle.go:4060 +0xad
created by net/http.(*http2serverConn).processHeaderBlockFragment
/usr/local/go/src/net/http/h2_bundle.go:3853 +0x7c3
--
You received this message because you are subscribed to the Google Groups
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to golang-nuts+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
