mod_jk产生错误smh errno = 13

我正在尝试使用mod_jk进行负载平衡。

负载均衡器：172.17.8.189（HTTPD + mod_jk）
Node1 ：172.17.8.193（apache tomcat实例1）
Node2 ：172.17.8.196（apache tomcat实例2）

我检查了我的tomcat实例，他们都在8009听。但是，我不断收到这些错误。

 [Tue Jun 18 17:49:14 2013][18057:47118810657648] [error] init_jk::mod_jk.c (3348): Initializing shm:/etc/httpd/logs/jk.shm.18057 errno=13. Load balancing workers will not function properly. [Tue Jun 18 17:49:14 2013][18057:47118810657648] [info] init_jk::mod_jk.c (3365): mod_jk/1.2.37 initialized 

debugging日志是

• Nginx根据参数select上游
• LoadMaster显示服务器为“UP”，但无法访问
• HAProxy max在〜10,700连接
• dynamicHAProxyconfiguration
• 在负载均衡器后面覆盖nginx中的$ scheme

  [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_set_time_fmt::jk_util.c (461): Pre-processed log time stamp format is '[%a %b %d %H:%M:%S %Y]' [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] uri_worker_map_open::jk_uri_worker_map.c (865): rule map size is 2 [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] uri_worker_map_add::jk_uri_worker_map.c (815): wildchar rule '/jasperserver-pro/*=loadbalancer' source 'JkMount' was added [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] uri_worker_map_add::jk_uri_worker_map.c (824): exact rule '/jkstatus/=status' source 'JkMount' was added [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] uri_worker_map_dump::jk_uri_worker_map.c (176): uri map dump after map open: id=0, index=0 file='(null)' reject_unsafe=0 reload=60 modified=0 checked=0 [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] uri_worker_map_dump::jk_uri_worker_map.c (182): generation 0: size=0 nosize=0 capacity=0 [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] uri_worker_map_dump::jk_uri_worker_map.c (182): generation 1: size=2 nosize=0 capacity=4 [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] uri_worker_map_dump::jk_uri_worker_map.c (195): NEXT (1) map #0: uri=/jasperserver-pro/* worker=loadbalancer context=/jasperserver-pro/* source=JkMount type=Wildchar len=19 [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] uri_worker_map_dump::jk_uri_worker_map.c (195): NEXT (1) map #1: uri=/jkstatus/ worker=status context=/jkstatus/ source=JkMount type=Exact len=10 [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] init_jk::mod_jk.c (3303): Setting default connection pool max size to 1 [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_read_property::jk_map.c (482): Adding property 'worker.list' with value 'loadbalancer,status' to map. [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_read_property::jk_map.c (482): Adding property 'worker.node1.port' with value '8009' to map. [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_read_property::jk_map.c (482): Adding property 'worker.node1.host' with value '172.17.8.193' to map. [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_read_property::jk_map.c (482): Adding property 'worker.node1.type' with value 'ajp13' to map. [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_read_property::jk_map.c (482): Adding property 'worker.node1.lbfactor' with value '1' to map. [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_read_property::jk_map.c (482): Adding property 'worker.node2.port' with value '8009' to map. [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_read_property::jk_map.c (482): Adding property 'worker.node2.host' with value '172.17.8.196' to map. [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_read_property::jk_map.c (482): Adding property 'worker.node2.type' with value 'ajp13' to map. [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_read_property::jk_map.c (482): Adding property 'worker.node2.lbfactor' with value '1' to map. [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_read_property::jk_map.c (482): Adding property 'worker.loadbalancer.type' with value 'lb' to map. [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_read_property::jk_map.c (482): Adding property 'worker.loadbalancer.balance_workers' with value 'node1,node2' to map. [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_read_property::jk_map.c (482): Adding property 'worker.loadbalancer.sticky_session' with value '1' to map. [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_read_property::jk_map.c (482): Adding property 'worker.status.type' with value 'status' to map. [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_map_resolve_references::jk_map.c (764): Checking for references with prefix worker. with wildcard (recursion 1) [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_shm_calculate_size::jk_shm.c (129): worker loadbalancer of type lb has 2 members [Tue Jun 18 18:14:00 2013][18778:47687756850032] [debug] jk_shm_calculate_size::jk_shm.c (136): shared memory will contain 0 ajp workers and 1 lb workers with 2 members [Tue Jun 18 18:14:00 2013][18778:47687756850032] [error] init_jk::mod_jk.c (3348): Initializing shm:/etc/httpd/logs/jk.shm.18778 errno=13. Load balancing workers will not function properly. 

因此请求没有被正确地重新路由。

我的worker.properties

 # Define list of workers that will be used # for mapping requests worker.list=loadbalancer,status # Define Node1 # modify the host as your host IP or DNS name. worker.node1.port=8009 worker.node1.host=172.17.8.193 worker.node1.type=ajp13 worker.node1.lbfactor=1 # Define Node2 # modify the host as your host IP or DNS name. worker.node2.port=8009 worker.node2.host=172.17.8.196 worker.node2.type=ajp13 worker.node2.lbfactor=1 # Load-balancing behaviour worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=node1,node2 worker.loadbalancer.sticky_session=1 #worker.list=loadbalancer # Status worker for managing load balancer worker.status.type=status 

我的模式-jk.conf

 # Load mod_jk module # Specify the filename of the mod_jk lib LoadModule jk_module modules/mod_jk.so # Where to find workers.properties JkWorkersFile conf/workers.properties # Where to put jk logs JkLogFile logs/mod_jk.log # Set the jk log level [debug/error/info] JkLogLevel info # Select the log format JkLogStampFormat "[%a %b %d %H:%M:%S %Y]" # JkOptions indicates to send SSK KEY SIZE JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories # JkRequestLogFormat JkRequestLogFormat "%w %V %T" # Mount your applications JkMount /myapp/* loadbalancer # You can use external file for mount points. # It will be checked for updates each 60 seconds. # The format of the file is: /url=worker # /examples/*=loadbalancer #JkMountFile conf/uriworkermap.properties # Add shared memory. # This directive is present with 1.2.10 and # later versions of mod_jk, and is needed for # for load balancing to work properly JkShmFile logs/jk.shm #JkShmFile /var/log/httpd/mod_jk.shm # Add jkstatus for managing runtime data <Location /jkstatus/> JkMount status Order deny,allow Deny from all Allow from localhost </Location> 

在server.xml

 <?xml version='1.0' encoding='utf-8'?> <!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> <!-- Note: A "Server" is not itself a "Container", so you may not define subcomponents such as "Valves" at this level. Documentation at /docs/config/server.html --> <Server port="8005" shutdown="SHUTDOWN"> <!--APR library loader. Documentation at /docs/apr.html --> <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" /> <!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html --> <Listener className="org.apache.catalina.core.JasperListener" /> <!-- Prevent memory leaks due to use of particular java/javax APIs--> <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" /> <!-- JMX Support for the Tomcat server. Documentation at /docs/non-existent.html --> <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" /> <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" /> <!-- Global JNDI resources Documentation at /docs/jndi-resources-howto.html --> <GlobalNamingResources> <!-- Editable user database that can also be used by UserDatabaseRealm to authenticate users --> <Resource name="UserDatabase" auth="Container" type="org.apache.catalina.UserDatabase" description="User database that can be updated and saved" factory="org.apache.catalina.users.MemoryUserDatabaseFactory" pathname="conf/tomcat-users.xml" /> </GlobalNamingResources> <!-- A "Service" is a collection of one or more "Connectors" that share a single "Container" Note: A "Service" is not itself a "Container", so you may not define subcomponents such as "Valves" at this level. Documentation at /docs/config/service.html --> <Service name="Catalina"> <!--The connectors can use a shared executor, you can define one or more named thread pools--> <!-- <Executor name="tomcatThreadPool" namePrefix="catalina-exec-" maxThreads="150" minSpareThreads="4"/> --> <!-- A "Connector" represents an endpoint by which requests are received and responses are returned. Documentation at : Java HTTP Connector: /docs/config/http.html (blocking & non-blocking) Java AJP Connector: /docs/config/ajp.html APR (HTTP/AJP) Connector: /docs/apr.html Define a non-SSL HTTP/1.1 Connector on port 8080 --> <Connector port="8081" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" /> <!-- A "Connector" using the shared thread pool--> <!-- <Connector executor="tomcatThreadPool" port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" /> --> <!-- Define a SSL HTTP/1.1 Connector on port 8443 This connector uses the JSSE configuration, when using APR, the connector should be using the OpenSSL style configuration described in the APR documentation --> <!-- <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS" /> --> <!-- Define an AJP 1.3 Connector on port 8009 --> <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> <!-- An Engine represents the entry point (within Catalina) that processes every request. The Engine implementation for Tomcat stand alone analyzes the HTTP headers included with the request, and passes them on to the appropriate Host (virtual host). Documentation at /docs/config/engine.html --> <!-- You should set jvmRoute to support load-balancing via AJP ie : <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1"> --> <Engine name="Catalina" defaultHost="localhost" jvmRoute="node2"> <!--For clustering, please take a look at documentation at: /docs/cluster-howto.html (simple how to) /docs/config/cluster.html (reference documentation) --> <!-- <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/> --> <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" channelSendOptions="8"> <Manager className="org.apache.catalina.ha.session.DeltaManager" expireSessionsOnShutdown="false" notifyListenersOnReplication="true"/> <Channel className="org.apache.catalina.tribes.group.GroupChannel"> <Membership className="org.apache.catalina.tribes.membership.McastService" address="228.0.0.4" port="45564" frequency="500" dropTime="3000"/> <Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter"> <Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"/> </Sender> <Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver" address="auto" port="4000" autoBind="100" selectorTimeout="5000" maxThreads="6"/> <Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/> <Interceptor className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor"/> </Channel> <Valve className="org.apache.catalina.ha.tcp.ReplicationValve" filter=""/> <Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/> <ClusterListener className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/> <ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/> </Cluster> <!-- The request dumper valve dumps useful debugging information about the request and response data received and sent by Tomcat. Documentation at: /docs/config/valve.html --> <!-- <Valve className="org.apache.catalina.valves.RequestDumperValve"/> --> <!-- This Realm uses the UserDatabase configured in the global JNDI resources under the key "UserDatabase". Any edits that are performed against this UserDatabase are immediately available for use by the Realm. --> <Realm className="org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase"/> <!-- Define the default virtual host Note: XML Schema validation will not work with Xerces 2.2. --> <Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true" xmlValidation="false" xmlNamespaceAware="false"> <!-- SingleSignOn valve, share authentication between web applications Documentation at: /docs/config/valve.html --> <!-- <Valve className="org.apache.catalina.authenticator.SingleSignOn" /> --> <!-- Access log processes all example. Documentation at: /docs/config/valve.html --> <!-- <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false"/> --> </Host> </Engine> </Service> </Server> 

将不胜感激任何反馈。

 # mkdir /var/run/mod_jk # semanage fcontext -a -t httpd_var_run_t "/var/run/mod_jk(/.*)?" 

 # Set this to a location allowed to the 'Apache' user JkShmFile /var/log/httpd/mod_jk.shm