7:49 a.m.
Bogdan Sikora created MODCLUSTER-541:
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Summary: [Mod_cluster] ManagerBalancerName variable is lowercased
Key: MODCLUSTER-541
URL: https://issues.jboss.org/browse/MODCLUSTER-541
Project: mod_cluster
Issue Type: Bug
Affects Versions: 1.3.3.Final
Reporter: Bogdan Sikora
Assignee: Michal Karm Babacek
Documentation
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3.5.8. ManagerBalancerName
ManagerBalancerName: That is the name of balancer to use when the JBoss AS/JBossWeb/Tomcat
doesn't provide a balancer name.
Default: mycluster
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Issue:
Apache Httpd (2.4.23-ER1) did not recognize ManagerBalancerName uppercase letters and is
turning whole name to lowercase. If worker passes balancer name then is correctly used as
documentation suggest and even with uppercase letters.
Reproduce:
1. Set up balancer (httpd) with worker (for example EAP-7, do not set Balancer variable)
2. Set ManagerBalancerName to QA-bAlAnCeR in mod_cluster.conf
3. Start everything and access mod_cluster status page
4. Look for Balancer variable under your worker, should be cAmeLcAse but isn't
Workaround:
Set balancer name in each worker, as documentation says it will override variable set in
mod_cluster.conf (ManagerBalancerName)
Verbose:
Httpd debug node join part
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08:13:22.058 [INFO] RESPONSE: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2
Final//EN">
<html><head>
<title>Mod_cluster Status</title>
</head><body>
<h1>mod_cluster/1.3.3.Final</h1><a
href="/mcm?nonce=2cfb1542-913e-11e6-9142-9fb646370036&refresh=10">Auto
Refresh</a> <a
href="/mcm?nonce=2cfb1542-913e-11e6-9142-9fb646370036&Cmd=DUMP&Range=ALL">show
DUMP output</a> <a
href="/mcm?nonce=2cfb1542-913e-11e6-9142-9fb646370036&Cmd=INFO&Range=ALL">show
INFO output</a>
<h1> Node jboss-eap-7.1 (ajp://192.168.122.88:8009): </h1>
<a
href="/mcm?nonce=2cfb1542-913e-11e6-9142-9fb646370036&Cmd=ENABLE-APP&Range=NODE&JVMRoute=jboss-eap-7.1">Enable
Contexts</a> <a
href="/mcm?nonce=2cfb1542-913e-11e6-9142-9fb646370036&Cmd=DISABLE-APP&Range=NODE&JVMRoute=jboss-eap-7.1">Disable
Contexts</a> <a
href="/mcm?nonce=2cfb1542-913e-11e6-9142-9fb646370036&Cmd=STOP-APP&Range=NODE&JVMRoute=jboss-eap-7.1">Stop
Contexts</a><br/>
Balancer:qa-balancer,LBGroup: ,Flushpackets: Off,Flushwait: 10000,Ping: 10000000,Smax:
2,Ttl: 60000000,Status: OK,Elected: 0,Read: 0,Transferred: 0,Connected: 0,Load: 1
<h2> Virtual Host
1:</h2><h3>Contexts:</h3><pre>/clusterbench, Status: ENABLED
Request: 0 <a
href="/mcm?nonce=2cfb1542-913e-11e6-9142-9fb646370036&Cmd=DISABLE-APP&Range=CONTEXT&JVMRoute=jboss-eap-7.1&Alias=default-host&Context=/clusterbench">Disable</a>
<a
href="/mcm?nonce=2cfb1542-913e-11e6-9142-9fb646370036&Cmd=STOP-APP&Range=CONTEXT&JVMRoute=jboss-eap-7.1&Alias=default-host&Context=/clusterbench">Stop</a>
</pre><h3>Aliases:</h3><pre>default-host
localhost
</pre></body></html>
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[Thu Oct 13 08:12:04.337611 2016] [:debug] [pid 12216] mod_manager.c(3018):
manager_handler CONFIG (/) processing:
"JVMRoute=jboss-eap-7.1&Host=192.168.122.88&Maxattempts=1&Port=8009&StickySessionForce=No&Type=ajp&ping=10"
[Thu Oct 13 08:12:04.340202 2016] [:debug] [pid 12216] mod_manager.c(3068):
manager_handler CONFIG OK
[Thu Oct 13 08:12:04.342416 2016] [:debug] [pid 12217] mod_manager.c(2302): manager_trans
ENABLE-APP (/)
[Thu Oct 13 08:12:04.342499 2016] [authz_core:debug] [pid 12217] mod_authz_core.c(809):
[client 192.168.122.88:54652] AH01626: authorization result of Require all granted:
granted
[Thu Oct 13 08:12:04.342509 2016] [authz_core:debug] [pid 12217] mod_authz_core.c(809):
[client 192.168.122.88:54652] AH01626: authorization result of <RequireAny>:
granted
[Thu Oct 13 08:12:04.342576 2016] [:debug] [pid 12217] mod_proxy_cluster.c(1054):
update_workers_node starting
[Thu Oct 13 08:12:04.343186 2016] [:debug] [pid 12217] mod_proxy_cluster.c(695):
add_balancer_node: Create balancer balancer://qa-balancer
[Thu Oct 13 08:12:04.343243 2016] [:debug] [pid 12217] mod_proxy_cluster.c(293): Created:
worker for ajp://192.168.122.88:8009
[Thu Oct 13 08:12:04.343259 2016] [proxy:debug] [pid 12217] proxy_util.c(1779): AH00925:
initializing worker ajp://192.168.122.88 shared
[Thu Oct 13 08:12:04.343262 2016] [proxy:debug] [pid 12217] proxy_util.c(1821): AH00927:
initializing worker ajp://192.168.122.88 local
[Thu Oct 13 08:12:04.343279 2016] [proxy:debug] [pid 12217] proxy_util.c(1872): AH00931:
initialized single connection worker in child 12217 for (192.168.122.88)
[Thu Oct 13 08:12:04.343288 2016] [:debug] [pid 12217] mod_proxy_cluster.c(293): Created:
worker for ajp://192.168.122.88:8009
[Thu Oct 13 08:12:04.343290 2016] [proxy:debug] [pid 12217] proxy_util.c(1774): AH00924:
worker ajp://192.168.122.88 shared already initialized
[Thu Oct 13 08:12:04.343292 2016] [proxy:debug] [pid 12217] proxy_util.c(1821): AH00927:
initializing worker ajp://192.168.122.88 local
[Thu Oct 13 08:12:04.343312 2016] [proxy:debug] [pid 12217] proxy_util.c(1872): AH00931:
initialized single connection worker in child 12217 for (192.168.122.88)
[Thu Oct 13 08:12:04.343318 2016] [:debug] [pid 12217] mod_proxy_cluster.c(1066):
update_workers_node done
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Configuration (mod_cluster.conf)
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<IfModule manager_module>
Listen 192.168.122.88:8747
LogLevel debug
<VirtualHost 192.168.122.88:8747>
ServerName localhost.localdomain:8747
<Directory />
Require all granted
</Directory>
KeepAliveTimeout 60
MaxKeepAliveRequests 0
ServerAdvertise on
AdvertiseFrequency 5
ManagerBalancerName QA-bAlAnCeR
AdvertiseGroup 224.0.5.88:23364
AdvertiseBindAddress 192.168.122.88:23364
EnableMCPMReceive
<Location /mcm>
SetHandler mod_cluster-manager
Require all granted
</Location>
</VirtualHost>
</IfModule>
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Bogdan Sikora (JIRA)