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  1. JBoss Core Services
  2. JBCS-192

[Mod_cluster] ManagerBalancerName variable is lowercased

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Details

    • Bug
    • Resolution: Won't Do
    • Major
    • None
    • httpd 2.4.23 ER1
    • None
    • None

    Description

      Documentation

      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

      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

      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>


      [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

      Configuration (mod_cluster.conf)

      <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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          Bug - A problem that impairs or prevents the functions of the product. MODCLUSTER-540 ManagerBalancerName variable is lowercased

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed

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              mbabacek1@redhat.com Michal Karm
              bsikora Bogdan Sikora (Inactive)
              Bogdan Sikora Bogdan Sikora (Inactive)
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                Created:
                Updated:
                Resolved: