我在现有的Red Hat服务器上运行了一个运行JBoss 4.2.2的网站.我正在设置第二台服务器,以便拥有一个群集对(然后将进行负载平衡).但是,我无法让它们成功集群.
现有服务器启动JBoss:
run.sh -c default -b 0.0.0.0
(我知道'默认'配置不支持开箱即用的集群 - 我正在使用它的修改版本,其中包括集群支持.)当我用相同的命令启动第二个JBoss实例时,它形成了自己的集群没有注意到第一个.两者都使用相同的分区名称和多播地址和端口.
我尝试了McastReceiverTest和McastSenderTest程序来检查机器是否可以通过多播进行通信; 他们可以.
然后我注意到http://docs.jboss.org/jbossas/docs/Clustering_Guide/beta422/html/ch07s07s07.html上的信息,说JGroups不能绑定到所有接口,而是绑定到默认接口; 所以大概是它绑定到127.0.0.1,从而没有得到消息.所以我设置实例来告诉JGroups使用内部IP:
run.sh -c default -b 0.0.0.0 -Djgroups.bind_addr=10.51.1.131 run.sh -c default -b 0.0.0.0 -Djgroups.bind_addr=10.51.1.141
(.131是现有服务器,.141是新服务器).
节点现在互相注意并形成一个集群 - 首先.但是,在尝试部署.ear时,服务器日志会说:
2010-08-07 22:26:39,321 DEBUG [org.jgroups.protocols.FD] sending are-you-alive msg to 10.51.1.131:46294 (own address=10.51.1.141:47629) 2010-08-07 22:26:45,412 WARN [org.jgroups.protocols.FD] I was suspected by 10.51.1.131:48733; ignoring the SUSPECT message and sending back a HEARTBEAT_ACK 2010-08-07 22:26:49,324 DEBUG [org.jgroups.protocols.FD] sending are-you-alive msg to 10.51.1.131:46294 (own address=10.51.1.141:47629) 2010-08-07 22:26:49,324 DEBUG [org.jgroups.protocols.FD] heartbeat missing from 10.51.1.131:46294 (number=0) 2010-08-07 22:26:49,529 DEBUG [org.jgroups.protocols.MERGE2] initial_mbrs=[[own_addr=10.51.1.141:60365, coord_addr=10.51.1.141:60365, is_server=true]] 2010-08-07 22:26:52,092 WARN [org.jboss.cache.TreeCache] replication failure with method_call optimisticPrepare; id:18; Args: ( arg[0] = GlobalTransaction:<10.51.1.131:46294>:5421085 ...) exception org.jboss.cache.lock.TimeoutException: failure acquiring lock: fqn=/Yudu_ear,Yudu-ejb_jar,Yudu-ejbPU/com/yudu/ejb/entity, caller=GlobalTransaction:<10.51.1.131:46294>:5421085, lock=read owners=[GlobalTransaction:<10.51.1.131:46294>:5421081] (activeReaders=1, activeWriter=null, waitingReaders=0, waitingWriters=1, waitingUpgrader=0)
...而.ear无法部署.
如果我将ejb3-entity-cache-service.xml中的CacheMode从REPL_SYNC更改为LOCAL,则.ear会正确部署,但当然实体缓存复制不会发生.但是,日志仍然显示出同样问题的有趣迹象.
看起来像:
首先,新节点找到现有节点并形成一个集群
然后FD检查失败,并且在一定数量的故障之后,新节点从群集中分离并形成其自己的群集
然后它再次找到它,重新聚类,这次FD检查工作.
日志文件的相关位:
2010-08-07 23:47:07,423 INFO [org.jgroups.protocols.UDP] socket information: local_addr=10.51.1.141:35666, mcast_addr=228.1.2.3:45566, bind_addr=/10.51.1.141, ttl=2 sock: bound to 10.51.1.141:35666, receive buffer size=131071, send buffer size=131071 mcast_recv_sock: bound to 0.0.0.0:45566, send buffer size=131071, receive buffer size=131071 mcast_send_sock: bound to 10.51.1.141:59196, send buffer size=131071, receive buffer size=131071 2010-08-07 23:47:07,431 DEBUG [org.jgroups.protocols.UDP] created unicast receiver thread 2010-08-07 23:47:09,445 DEBUG [org.jgroups.protocols.pbcast.GMS] initial_mbrs are [[own_addr=10.51.1.131:48888, coord_addr=10.51.1.131:48888, is_server=true]] 2010-08-07 23:47:09,446 DEBUG [org.jgroups.protocols.pbcast.GMS] election results: {10.51.1.131:48888=1} 2010-08-07 23:47:09,446 DEBUG [org.jgroups.protocols.pbcast.GMS] sending handleJoin(10.51.1.141:35666) to 10.51.1.131:48888 2010-08-07 23:47:09,751 DEBUG [org.jgroups.protocols.pbcast.GMS] [10.51.1.141:35666]: JoinRsp=[10.51.1.131:48888|61] [10.51.1.131:48888, 10.51.1.141:35666] [size=2] 2010-08-07 23:47:09,752 DEBUG [org.jgroups.protocols.pbcast.GMS] new_view=[10.51.1.131:48888|61] [10.51.1.131:48888, 10.51.1.141:35666] ... 2010-08-07 23:47:10,047 INFO [org.jboss.ha.framework.interfaces.HAPartition.DefaultPartition] Number of cluster members: 2 2010-08-07 23:47:10,047 INFO [org.jboss.ha.framework.interfaces.HAPartition.DefaultPartition] Other members: 1 ... 2010-08-07 23:47:20,034 DEBUG [org.jgroups.protocols.FD] sending are-you-alive msg to 10.51.1.131:48888 (own address=10.51.1.141:35666) 2010-08-07 23:47:30,037 DEBUG [org.jgroups.protocols.FD] sending are-you-alive msg to 10.51.1.131:48888 (own address=10.51.1.141:35666) 2010-08-07 23:47:30,038 DEBUG [org.jgroups.protocols.FD] heartbeat missing from 10.51.1.131:48888 (number=0) 2010-08-07 23:47:40,040 DEBUG [org.jgroups.protocols.FD] sending are-you-alive msg to 10.51.1.131:48888 (own address=10.51.1.141:35666) 2010-08-07 23:47:40,040 DEBUG [org.jgroups.protocols.FD] heartbeat missing from 10.51.1.131:48888 (number=1) ... 2010-08-07 23:48:19,758 WARN [org.jgroups.protocols.FD] I was suspected by 10.51.1.131:48888; ignoring the SUSPECT message and sending back a HEARTBEAT_ACK 2010-08-07 23:48:20,054 DEBUG [org.jgroups.protocols.FD] sending are-you-alive msg to 10.51.1.131:48888 (own address=10.51.1.141:35666) 2010-08-07 23:48:20,055 DEBUG [org.jgroups.protocols.FD] [10.51.1.141:35666]: received no heartbeat ack from 10.51.1.131:48888 for 6 times (60000 milliseconds), suspecting it 2010-08-07 23:48:20,058 DEBUG [org.jgroups.protocols.FD] broadcasting SUSPECT message [suspected_mbrs=[10.51.1.131:48888]] to group ... 2010-08-07 23:48:21,691 DEBUG [org.jgroups.protocols.pbcast.NAKACK] removing 10.51.1.131:48888 from received_msgs (not member anymore) 2010-08-07 23:48:21,691 INFO [org.jboss.ha.framework.server.DistributedReplicantManagerImpl.DefaultPartition] I am (127.0.0.1:1099) received membershipChanged event: 2010-08-07 23:48:21,691 INFO [org.jboss.ha.framework.server.DistributedReplicantManagerImpl.DefaultPartition] Dead members: 0 ([]) 2010-08-07 23:48:21,691 INFO [org.jboss.ha.framework.server.DistributedReplicantManagerImpl.DefaultPartition] New Members : 0 ([]) 2010-08-07 23:48:21,691 INFO [org.jboss.ha.framework.server.DistributedReplicantManagerImpl.DefaultPartition] All Members : 1 ([127.0.0.1:1099]) ... 2010-08-07 23:49:59,793 WARN [org.jgroups.protocols.FD] I was suspected by 10.51.1.131:48888; ignoring the SUSPECT message and sending back a HEARTBEAT_ACK 2010-08-07 23:50:09,796 WARN [org.jgroups.protocols.FD] I was suspected by 10.51.1.131:48888; ignoring the SUSPECT message and sending back a HEARTBEAT_ACK 2010-08-07 23:50:19,144 DEBUG [org.jgroups.protocols.FD] Recevied Ack. is invalid (was from: 10.51.1.131:48888), 2010-08-07 23:50:19,144 DEBUG [org.jgroups.protocols.FD] Recevied Ack. is invalid (was from: 10.51.1.131:48888), ... 2010-08-07 23:50:21,791 DEBUG [org.jgroups.protocols.pbcast.GMS] new=[10.51.1.131:48902], suspected=[], leaving=[], new view: [10.51.1.141:35666|63] [10.51.1.141:35666, 10.51.1.131:48902] ... 2010-08-07 23:50:21,792 DEBUG [org.jgroups.protocols.pbcast.GMS] view=[10.51.1.141:35666|63] [10.51.1.141:35666, 10.51.1.131:48902] 2010-08-07 23:50:21,792 DEBUG [org.jgroups.protocols.pbcast.GMS] [local_addr=10.51.1.141:35666] view is [10.51.1.141:35666|63] [10.51.1.141:35666, 10.51.1.131:48902] 2010-08-07 23:50:21,822 INFO [org.jboss.ha.framework.interfaces.HAPartition.lifecycle.DefaultPartition] New cluster view for partition DefaultPartition (id: 63, delta: 1) : [127.0.0.1:1099, 127.0.0.1:1099] 2010-08-07 23:50:21,822 DEBUG [org.jboss.ha.framework.interfaces.HAPartition.DefaultPartition] membership changed from 1 to 2 ... 2010-08-07 23:50:31,825 DEBUG [org.jgroups.protocols.FD] sending are-you-alive msg to 10.51.1.131:48902 (own address=10.51.1.141:35666) 2010-08-07 23:50:31,832 DEBUG [org.jgroups.protocols.FD] received ack from 10.51.1.131:48902
但我不知道为什么FD检查在第一轮失败了; 虽然它最终似乎与另一个节点集群,但是当它试图共享实体状态时,最初的失败似乎足以弄乱部署,从而阻止它实际以有用的方式工作.
如果有人能够阐明这一点,我将非常感激!