3
좋아, 지난 이래로 지난 3 일 동안 내 머리를 헛되게 먹었으므로 전문가가!아파치, mod_jk 및 JBoss로드 밸런싱 문제
배경
내가 분명히 간단한 설정 작업을 얻기 위해 노력하고있어 - 내가 설정이 개 JBoss의 노드 (단일, 비 멀티 홈에 즉, 두 노드에 할에 CentOS는 상자를 가지고 , Server)를 참조하고 장애 극복 시나리오를 시도하십시오. 나는 아파치의 mod_jk 모듈이 그것을 달성하는 것을 도울 것이라고 읽었다.
나는 부지런히 JBoss 5.1 Clustering Guide을 따르려고 노력했지만, 어쨌든, 어딘가에서, 나는 어리둥절 해 보였다.
문제는
나는 503 서비스를 사용할 수 없음 메시지가 항상 아파치를 통해 node2에 연결하고 할 수 결코 해요.
구성
다음은 자세한 내용입니다.
#Include mod_jk's specific configuration file Include conf/mod_jk.conf
mod_jk.conf은 (다른 것들 사이)에 다음 줄을 포함합니다 :
uriworkermap.properites
JkMountFile conf/uriworkermap.properties은 다음과 같습니다
# 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
CentOS 6 Apache 2.2.15 mod_jk 1.2.35 JBoss 5.1.0 GA
httpd.conf는 결국 다음과 같은 라인을 가지고 ,451,515,
workers.properties : 나는 node1과 node2 호출하려면 다음 명령을 사용
# 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
: 또한
./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
, 나는 node 각 디렉토리 내에서 server.xml 파일을 수정 Engine에 해당 jvmRoute 매개 변수를 추가 한 꼬리표. 처음에 내가 응용 프로그램
... [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 ...을 액세스 할 때 내가 노드 1, 노드 2와 아파치
... [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 ...
을 가져올 때
: 다음
관측
는 mod_jk 로그입니다
보시다시피 node1을 통해 요청을 처리하기 전에 node2에 두 번 연결하려고 시도합니다. 시간이 node1이 될 때까지입니다. 내가 그것을 쓰러 뜨리 자마자 나는 접근하려고 할 때 503 에러를 받기 시작한다.
나는 mod_jk에 문제가 있는지 또는 누락 된 것인지 잘 모르겠습니다.
제안 사항?
업데이트 : 그것은 두 개의 (물리적) 노드와 일하고있어,하지만 난 여전히 별도의 포트 (8009 및 8109)와 같은 상자에 작업을 가져올 수 없습니다.