Apache，mod_jk和JBoss负载平衡问题

Question

OK, I have been whacking my head in vain since the last three days over this, so time to take it up with the gurus ! 好吧，自从过去三天以来，我一直在徒劳无功，所以有时间与大师们一起讨论 ！

Background 背景
I'm trying to get an apparently simple setup working -- I have a CentOS box, on which I want to set-up two JBoss nodes (ie Two Nodes on a Single, Non-Multihomed, Server), and try out a fail-over scenario. 我正试图让一个看似简单的设置工作 - 我有一个CentOS盒子，我想在其上设置两个JBoss节点（即单个，非多宿主，服务器上的两个节点），并尝试失败 - 场景。 I read that mod_jk module of Apache would help me achieve it. 我读到Apache的mod_jk模块可以帮助我实现它。

I have diligently tried to follow JBoss 5.1 Clustering Guide , but still, somehow, somewhere I seem to have fumbled. 我一直在努力尝试遵循JBoss 5.1集群指南，但不知何故，我似乎在某个地方摸索过。

Issue 问题
I'm never able to connect to node2 via Apache, and always get a 503 Service Unavailable message. 我永远无法通过Apache连接到node2 ，并始终获得503 Service Unavailable消息。

Configuration 组态
Following are the details. 以下是详细信息。

CentOS 6
Apache 2.2.15
mod_jk 1.2.35
JBoss 5.1.0 GA

httpd.conf has the following line in the end: httpd.conf有以下几行：

#Include mod_jk's specific configuration file
Include conf/mod_jk.conf

mod_jk.conf contains the following line (amongst other things): mod_jk.conf包含以下行（除其他外）：

JkMountFile conf/uriworkermap.properties

uriworkermap.properites looks like this: uriworkermap.properites看起来像这样：

# Simple worker configuration file
# Mount the Servlet context to the ajp13 worker
/jmx-console=loadbalancer
/jmx-console/*=loadbalancer
/web-console=loadbalancer
/web-console/*=loadbalancer
/jspHello=loadbalancer
/jspHello/*=loadbalancer

workers.properties : workers.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=127.0.0.1
worker.node1.type=ajp13
worker.node1.lbfactor=1

# Define Node2
# modify the host as your host IP or DNS name.
worker.node2.port=8109
worker.node2.host=127.0.0.1
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

# Status worker for managing load balancer
worker.status.type=status

I use the following commands to invoke node1 and node2 : 我使用以下命令来调用node1和node2 ：

./run.sh -c node1 -g DocsPartition -Djboss.messaging.ServerPeerID=1 -Djboss.service.binding.set=ports-default -b 0.0.0.0

./run.sh -c node2 -g DocsPartition -Djboss.messaging.ServerPeerID=2 -Djboss.service.binding.set=ports-01 -b 0.0.0.0

Also, I have modified server.xml files within each of the node directories and added the corresponding jvmRoute parameter in Engine tag. 此外，我修改了每个node目录中的server.xml文件，并在Engine标记中添加了相应的jvmRoute参数。

Observation 意见
Following are the mod_jk logs: 以下是mod_jk日志：
Initially when I bring up node1, node2 and httpd 最初当我调出node1，node2和httpd时

...
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] do_shm_open::jk_shm.c (561): Truncated shared memory to 1856
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] do_shm_open::jk_shm.c (606): Initialized shared memory /var/run/httpd/mod_jk.shm.14695 size=1856 free=1728 addr=0x7fe7cb7c3000
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] do_shm_open_lock::jk_shm.c (476): Opened shared memory lock /var/run/httpd/mod_jk.shm.14695.lock
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'ServerRoot' -> '/etc/httpd'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'worker.list' -> 'loadbalancer,status'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'worker.node1.port' -> '8009'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'worker.node1.host' -> '127.0.0.1'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'worker.node1.type' -> 'ajp13'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'worker.node1.lbfactor' -> '1'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'worker.node2.port' -> '8109'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'worker.node2.host' -> '127.0.0.1'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'worker.node2.type' -> 'ajp13'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'worker.node2.lbfactor' -> '1'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'worker.loadbalancer.type' -> 'lb'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'worker.loadbalancer.balance_workers' -> 'node1,node2'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'worker.loadbalancer.sticky_session' -> '0'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_map_dump::jk_map.c (589): Dump of map: 'worker.status.type' -> 'status'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] build_worker_map::jk_worker.c (241): creating worker loadbalancer
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] wc_create_worker::jk_worker.c (145): about to create instance loadbalancer of lb
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] wc_create_worker::jk_worker.c (158): about to validate and init loadbalancer
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] wc_create_worker::jk_worker.c (145): about to create instance node1 of ajp13
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] wc_create_worker::jk_worker.c (158): about to validate and init node1
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_validate::jk_ajp_common.c (2679): worker node1 contact is '127.0.0.1:8009'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2877): setting endpoint options:
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2880): keepalive:              0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2884): socket timeout:         0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2888): socket connect timeout: 0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2892): buffer size:            0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2896): pool timeout:           0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2900): ping timeout:           10000
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2904): connect timeout:        0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2908): reply timeout:          0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2912): prepost timeout:        0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2916): recovery options:       0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2920): retries:                2
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2924): max packet size:        8192
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2928): retry interval:         100
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_create_endpoint_cache::jk_ajp_common.c (2737): setting connection pool size to 1 with min 1 and acquire timeout 200
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] wc_create_worker::jk_worker.c (145): about to create instance node2 of ajp13
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] wc_create_worker::jk_worker.c (158): about to validate and init node2
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_validate::jk_ajp_common.c (2679): worker node2 contact is '127.0.0.1:8109'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2877): setting endpoint options:
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2880): keepalive:              0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2884): socket timeout:         0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2888): socket connect timeout: 0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2892): buffer size:            0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2896): pool timeout:           0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2900): ping timeout:           10000
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2904): connect timeout:        0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2908): reply timeout:          0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2912): prepost timeout:        0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2916): recovery options:       0
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2920): retries:                2
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2924): max packet size:        8192
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_init::jk_ajp_common.c (2928): retry interval:         100
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] ajp_create_endpoint_cache::jk_ajp_common.c (2737): setting connection pool size to 1 with min 1 and acquire timeout 200
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] validate::jk_lb_worker.c (1702): Balanced worker 0 has name node1 and route node1 in domain 
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] validate::jk_lb_worker.c (1702): Balanced worker 1 has name node2 and route node2 in domain 
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] update_mult::jk_lb_worker.c (262): worker node1 gets multiplicity 1
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] update_mult::jk_lb_worker.c (262): worker node2 gets multiplicity 1
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] jk_lb_push::jk_lb_worker.c (353): syncing shm for lb 'loadbalancer' from mem (0->1)
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] build_worker_map::jk_worker.c (241): creating worker status
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] wc_create_worker::jk_worker.c (145): about to create instance status of status
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] wc_create_worker::jk_worker.c (158): about to validate and init status
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] init::jk_status.c (5078): Status worker 'status' is read/write and has css '(null)', prefix 'worker', name space 'jk:', xml name space 'xmlns:jk="http://tomcat.apache.org"', document type '(null)'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [debug] init::jk_status.c (5129): Status worker 'status' has good rating for '0000000f' and bad rating for '00ff1010'
[Thu Sep 06 02:21:54 2012][14695:140633527957472] [info] init_jk::mod_jk.c (3365): mod_jk/1.2.35 initialized
...

And when I try to access the application 当我尝试访问该应用程序时

...
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] find_match::jk_uri_worker_map.c (949): Found a wildchar match '/jspHello/*=loadbalancer'
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] jk_handler::mod_jk.c (2621): Into handler jakarta-servlet worker=loadbalancer r->proxyreq=0
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] wc_get_worker_for_name::jk_worker.c (115): found a worker loadbalancer
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] wc_maintain::jk_worker.c (338): Maintaining worker loadbalancer
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] wc_get_name_for_type::jk_worker.c (292): Found worker type 'lb'
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] init_ws_service::mod_jk.c (1097): Service protocol=HTTP/1.1 method=GET ssl=false host=(null) addr=::1 name=localhost port=80 auth=(null) user=(null) laddr=::1 raddr=::1 uri=/jspHello/
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] service::jk_lb_worker.c (1192): service sticky_session=0 id='empty'
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] get_most_suitable_worker::jk_lb_worker.c (1061): found best worker node2 (node2) using method 'Request'
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] service::jk_lb_worker.c (1237): service worker=node2 route=node2
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_get_endpoint::jk_ajp_common.c (3146): acquired connection pool slot=0 after 0 retries
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_marshal_into_msgb::jk_ajp_common.c (626): ajp marshaling done
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_service::jk_ajp_common.c (2441): processing node2 with 2 retries
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_send_request::jk_ajp_common.c (1615): (node2) all endpoints are disconnected.
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] jk_open_socket::jk_connect.c (485): socket TCP_NODELAY set to On
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] jk_open_socket::jk_connect.c (609): trying to connect socket 14 to 127.0.0.1:8109
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [info] jk_open_socket::jk_connect.c (627): connect to 127.0.0.1:8109 failed (errno=13)
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [info] ajp_connect_to_endpoint::jk_ajp_common.c (992): Failed opening socket to (127.0.0.1:8109) (errno=13)
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [error] ajp_send_request::jk_ajp_common.c (1621): (node2) connecting to backend failed. Tomcat is probably not started or is listening on the wrong port (errno=13)
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [info] ajp_service::jk_ajp_common.c (2614): (node2) sending request to tomcat failed (recoverable), because of error during request sending (attempt=1)
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_service::jk_ajp_common.c (2463): retry 1, sleeping for 100 ms before retrying
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_send_request::jk_ajp_common.c (1615): (node2) all endpoints are disconnected.
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] jk_open_socket::jk_connect.c (485): socket TCP_NODELAY set to On
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] jk_open_socket::jk_connect.c (609): trying to connect socket 14 to 127.0.0.1:8109
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [info] jk_open_socket::jk_connect.c (627): connect to 127.0.0.1:8109 failed (errno=13)
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [info] ajp_connect_to_endpoint::jk_ajp_common.c (992): Failed opening socket to (127.0.0.1:8109) (errno=13)
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [error] ajp_send_request::jk_ajp_common.c (1621): (node2) connecting to backend failed. Tomcat is probably not started or is listening on the wrong port (errno=13)
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [info] ajp_service::jk_ajp_common.c (2614): (node2) sending request to tomcat failed (recoverable), because of error during request sending (attempt=2)
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [error] ajp_service::jk_ajp_common.c (2634): (node2) connecting to tomcat failed.
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_reset_endpoint::jk_ajp_common.c (786): (node2) resetting endpoint with socket -1 (socket shutdown)
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_done::jk_ajp_common.c (3077): recycling connection pool for worker node2 and socket -1
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] service::jk_lb_worker.c (1455): worker node2 escalating local error to global error
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [info] service::jk_lb_worker.c (1469): service failed, worker node2 is in error state
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] service::jk_lb_worker.c (1480): recoverable error... will try to recover on other worker
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] get_most_suitable_worker::jk_lb_worker.c (1061): found best worker node1 (node1) using method 'Request'
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] service::jk_lb_worker.c (1237): service worker=node1 route=node2
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_get_endpoint::jk_ajp_common.c (3146): acquired connection pool slot=0 after 0 retries
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_marshal_into_msgb::jk_ajp_common.c (626): ajp marshaling done
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_service::jk_ajp_common.c (2441): processing node1 with 2 retries
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_send_request::jk_ajp_common.c (1615): (node1) all endpoints are disconnected.
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] jk_open_socket::jk_connect.c (485): socket TCP_NODELAY set to On
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] jk_open_socket::jk_connect.c (609): trying to connect socket 14 to 127.0.0.1:8009
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] jk_open_socket::jk_connect.c (635): socket 14 [127.0.0.1:38909 -> 127.0.0.1:8009] connected
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_connection_tcp_send_message::jk_ajp_common.c (1175): sending to ajp13 pos=4 len=570 max=8192
[Thu Sep 06 02:24:42 2012][14700:140633527957472] [debug] ajp_connection_tcp_send_message::jk_ajp_common.c (1175): 0000    12 34 02 36 02 02 00 08 48 54 54 50 2F 31 2E 31  - .4.6....HTTP/1.1
...

As you can see, it tries to connect to node2 twice before servicing the request via node1. 如您所见，它在尝试通过node1处理请求之前尝试连接到node2两次。 This is so till the time node1 is up. 直到node1启动node1这样。 As soon as I take it down, I start getting the 503 error when I try to access. 我一拿下它，当我尝试访问时就开始收到503错误。

I am not sure whether its a mod_jk issue or am I missing something. 我不确定它是一个mod_jk问题还是我错过了什么。

Any suggestions? 有什么建议么？

Update : It's working with two separate (physical) nodes, but I still could not get it to work on the same box with separate ports (8009 and 8109). 更新：它正在使用两个独立的（物理）节点，但我仍然无法在具有单独端口（8009和8109）的同一个盒子上工作。

Answer 1

Sounds like the JBoss isn't using the port you think it is. 听起来JBoss没有使用您认为的端口。 A good diagnostic tool is lsof (which is installable via yum); 一个很好的诊断工具是lsof（可以通过yum安装）;

lsof -i -n -P

and look to see what ports the JBoss process is listening to. 并查看JBoss进程正在侦听的端口。 Correct your configs from there. 从那里纠正你的配置。

Answer 2

JBoss may be listening on ports 8009 and 8109, but by default, it only listens on the 127.0.0.1 interface meaning that the ports would not be open to remote connections. JBoss可能正在侦听端口8009和8109，但默认情况下，它只侦听127.0.0.1 接口，这意味着端口不会对远程连接开放。

To make jboss listen on all interfaces, use this run option (from run.sh --help ): 要使jboss侦听所有接口，请使用此run选项（来自run.sh --help ）：

-b, --host= Bind address for all JBoss services -b， - host =所有JBoss服务的绑定地址

and set the value to 0.0.0.0 并将值设置为0.0.0.0

Answer 3

The fix for this issue is to change the AJP port to a different range. 解决此问题的方法是将AJP端口更改为其他范围。 The port 8109 was getting blocked by SELinux in my CentOS /Red Hat. 在我的CentOS / Red Hat中，端口8109被SELinux阻止了。 So I changed the AJP port to 81 and the issue got fixed. 所以我将AJP端口更改为81，问题得到解决。

Apache，mod_jk和JBoss负载平衡问题

问题描述

3 个解决方案

解决方案1
1 2012-09-05 21:10:19

解决方案2
0 2012-09-07 17:08:10

解决方案3
0 2016-07-04 14:49:20

Apache，mod_jk和JBoss负载平衡问题

问题描述

3 个解决方案

解决方案1 1 2012-09-05 21:10:19

解决方案2 0 2012-09-07 17:08:10

解决方案3 0 2016-07-04 14:49:20

解决方案1
1 2012-09-05 21:10:19

解决方案2
0 2012-09-07 17:08:10

解决方案3
0 2016-07-04 14:49:20