Hello again,
working with:
- resin-pro 4.0.34 (eval license),
- two instances (app-0,app-1)
- mod_caucho.so for loadbalancing on apache 2.2 prefork
Lets start:
- resin's /resin-admin: System Health is OK, i see both servers
- apache's /caucho-status: i see both servers green as ok
Now i disable app-0 for load balancing, so that i can maintain the server:
app-0$ ./resinctl disable -server app-0
- resin's access.log no longer has entries. OK.
- apache's access.log is now full of "503". Not OK. All traffic should go to
app-1.
- apache's /caucho-status: both servers show up as green ok. Not OK. app-0
should be red.
- app-0/resin-admin is delivering "503". Not OK. How to maintain the server
app-0 now?
Lets see, if it helps to stop the whole web-app to get it out of load balancing:
app-0$ ./resinctl web-app-stop myapp
No further change. Not ok.
Is it because there are other apps still enabled, thats why mod_caucho keeps
the server? But why do i get so many "503" for my webapp context, that i have
disabled?
Should i probably disable /resin-admin, /resin-rest on "Host: default" as well?
app-0$ ./resinctl stop
Finally a change:
- apache's /caucho-status: app-0 is getting red. Juhu.
But still:
- apache's access.log is full with "503" (why oh why its not going to app-1,
because)
- app-1 almost gets almost gets no traffic.
app-0$ ./resinctl start
- app-0/1 slowly start get request again according to resin's access.log
- in between i even start to see "404" in apache's log. Hm, this could be my
fault, though resin should not start to deliver, when the webapp is not fully
app.
In any way, i am pretty lost.
The only properties i have overwritten:
dev_mode : false
app_servers : 172.17.32.4:6800 172.17.32.5:6800
session_store : false
remote_admin_enable : true
web_admin_enable : true
web_admin_external : true
rest_admin_enable : true
admin_user : admin
admin_password : ...
And i have put those two ResinConfigServer ("config triad") into the httpd.conf:
ResinConfigServer 172.17.32.4 6800
ResinConfigServer 172.17.32.5 6800
Is anyone using mod_caucho in production and has no problems with it? Am i
missing something here? :-)
Thanks!
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