基于zookeeper的activemq的主从集群配置
2024-10-14 06:24:49
项目，要用到消息队列，这里采用activemq，相对使用简单点。这里重点是环境部署。
0. 服务器环境
RedHat7
10.90.7.2
10.90.7.10
10.90.2.102
1. 下载安装zookeeper
地址：https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.3.6/zookeeper-3.3.6.tar.gz
zookeeper的安装，采用一台机器装3个实例，伪集群。其实，搭建真集群，也是没问题的。
在7.10服务器上，安装这3个实例。
解压zookeeper。
[root@localhost zookeeper-3.3.]# pwd
/opt/amq/zookeeper-3.3.
然后，copy zookeeper-3.3.6 三份为zk1,zk2,zk3
[root@localhost amq]# ll
总用量
drwxr-xr-x root root 7月 : zk1
drwxr-xr-x root root 7月 : zk2
drwxr-xr-x root root 7月 : zk3
drwxr-xr-x www www 7月 zookeeper-3.3.
-rw-r--r-- root root 7月 : zookeeper-3.3..tar.gz
在zk1，zk2，zk3的目录下，创建data目录。
修改zk1,zk2,zk3的配置文件。
[root@localhost conf]# pwd
/opt/amq/zk1/conf
[root@localhost conf]# mv zoo_sample.cfg zoo.cfg
[root@localhost conf]# ll
总用量
-rw-r--r-- root root 7月 : configuration.xsl
-rw-r--r-- root root 7月 : log4j.properties
-rw-r--r-- root root 7月 : zoo.cfg
修改zk1的zoo.cfg的配置内容为下面的内容：
# The number of milliseconds of each tick
tickTime=
# The number of ticks that the initial
# synchronization phase can take
initLimit=
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=
# the directory where the snapshot is stored.
dataDir=/opt/amq/zk1/data
# the port at which the clients will connect
clientPort=
server.=10.90.7.10::
server.=10.90.7.10::
server.=10.90.7.10::
修改zk2的zoo.cfg的配置内容为下面的内容：
# The number of milliseconds of each tick
tickTime=
# The number of ticks that the initial
# synchronization phase can take
initLimit=
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=
# the directory where the snapshot is stored.
dataDir=/opt/amq/zk2/data
# the port at which the clients will connect
clientPort=
server.=10.90.7.10::
server.=10.90.7.10::
server.=10.90.7.10::
修改zk3的zoo.cfg的配置内容为下面的内容：
# The number of milliseconds of each tick
tickTime=
# The number of ticks that the initial
# synchronization phase can take
initLimit=
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=
# the directory where the snapshot is stored.
dataDir=/opt/amq/zk3/data
# the port at which the clients will connect
clientPort=
server.=10.90.7.10::
server.=10.90.7.10::
server.=10.90.7.10::
还有一步，就是在zk1，zk2，zk3的data（这个data目录也是自己创建的）下面创建一个文件myid，内容就是zoo.cfg中的服务器server.x中的数字1,2,3。
[root@localhost data]# pwd
/opt/amq/zk1/data
[root@localhost data]# ll
总用量
-rw-r--r-- root root 7月 : myid
drwxr-xr-x root root 7月 : version-
-rw-r--r-- root root 7月 : zookeeper_server.pid
最后，分别到zk1，zk2，zk3的bin目录，执行启动zookeeper的程序。例如，这里我启动zk1的。
[root@localhost bin]# ./zkServer.sh
JMX enabled by default
Using config: /opt/amq/zk1/bin/../conf/zoo.cfg
Usage: ./zkServer.sh {start|start-foreground|stop|restart|status|upgrade|print-cmd} [root@localhost bin]# ./zkServer.sh start
到此，zk的3元集群启动完毕。
若是三个不同的机器上启动，配置上只有zoo.cfg中的一点点不同。就是下面的这个信息：
server.A=B:C:D
其 中
A 是一个数字，表示这个是第几号服务器；
B 是这个服务器的 ip地址；
C 表示的是这个服务器与集群中的 Leader 服务器交换信息的端口；
D 表示的是万一集群中的 Leader 服务器挂了，需要一个端口来重新进行选举，选出一个新的 Leader，
而这个端口就是用来执行选举时服务器相互通信的端口。如果是伪集群的配置方式，由于 B 都是一样，所以不同的 Zookeeper 实例通信端口号不能一样，所以要给它们分配不同的端口号。
正常启动了的zookeeper的日志是这样子的：
-- ::, - INFO [QuorumPeer:/:::::::::Learner@] - Getting a snapshot from leader
-- ::, - INFO [QuorumPeer:/:::::::::Learner@] - Setting leader epoch
-- ::, - INFO [QuorumPeer:/:::::::::FileTxnSnapLog@] - Snapshotting:
-- ::, - INFO [WorkerReceiver Thread:FastLeaderElection@] - Notification: (n.leader), (n.zxid), (n.round), LOOKING (n.state), (n.sid), FOLLOWING (my state)
-- ::, - INFO [WorkerReceiver Thread:FastLeaderElection@] - Notification: (n.leader), (n.zxid), (n.round), LOOKING (n.state), (n.sid), FOLLOWING (my state)
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn$Factory@] - Accepted socket connection from /10.90.7.10:
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn@] - Client attempting to establish new session at /10.90.7.10:
-- ::, - WARN [QuorumPeer:/:::::::::Follower@] - Got zxid 0x100000001 expected 0x1
-- ::, - INFO [SyncThread::FileTxnLog@] - Creating new log file: log.
-- ::, - INFO [CommitProcessor::NIOServerCnxn@] - Established session 0x15d68b1dbf90000 with negotiated timeout for client /10.90.7.10:
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn@] - Closed socket connection for client /10.90.7.10: which had sessionid 0x15d68b1dbf90000
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn$Factory@] - Accepted socket connection from /10.90.7.10:
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn@] - Client attempting to establish new session at /10.90.7.10:
-- ::, - INFO [CommitProcessor::NIOServerCnxn@] - Established session 0x15d68b1dbf90001 with negotiated timeout for client /10.90.7.10:
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn@] - Closed socket connection for client /10.90.7.10: which had sessionid 0x15d68b1dbf90001
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn$Factory@] - Accepted socket connection from /10.90.7.10:
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn@] - Client attempting to establish new session at /10.90.7.10:
-- ::, - INFO [CommitProcessor::NIOServerCnxn@] - Established session 0x15d68b1dbf90002 with negotiated timeout for client /10.90.7.10:
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn$Factory@] - Accepted socket connection from /10.90.2.102:
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn@] - Client attempting to establish new session at /10.90.2.102:
-- ::, - INFO [CommitProcessor::NIOServerCnxn@] - Established session 0x15d68b1dbf90003 with negotiated timeout for client /10.90.2.102:
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn@] - Closed socket connection for client /10.90.2.102: which had sessionid 0x15d68b1dbf90003
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn$Factory@] - Accepted socket connection from /10.90.2.102:
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn@] - Client attempting to establish new session at /10.90.2.102:
-- ::, - INFO [CommitProcessor::NIOServerCnxn@] - Established session 0x15d68b1dbf90004 with negotiated timeout for client /10.90.2.102:
-- ::, - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn@] - EndOfStreamException: Unable to read additional data from client sessionid 0x15d68b1dbf90002, likely client has closed socket
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn@] - Closed socket connection for client /10.90.7.10: which had sessionid 0x15d68b1dbf90002
-- ::, - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn@] - EndOfStreamException: Unable to read additional data from client sessionid 0x15d68b1dbf90004, likely client has closed socket
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn@] - Closed socket connection for client /10.90.2.102: which had sessionid 0x15d68b1dbf90004
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn$Factory@] - Accepted socket connection from /10.90.7.2:
-- ::, - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0::NIOServerCnxn@] - Client attempting to establish new session at /10.90.7.2:
-- ::, - INFO [CommitProcessor::NIOServerCnxn@] - Established session 0x15d68b1dbf90005 with negotiated timeout for client /10.90.7.2:
执行一下./zkCli.sh
[root@localhost bin]# ./zkCli.sh
Connecting to localhost:
-- ::, - INFO [main:Environment@] - Client environment:zookeeper.version=3.3.-, built on // : GMT
-- ::, - INFO [main:Environment@] - Client environment:host.name=localhost
-- ::, - INFO [main:Environment@] - Client environment:java.version=1.8.0_121
-- ::, - INFO [main:Environment@] - Client environment:java.vendor=Oracle Corporation
-- ::, - INFO [main:Environment@] - Client environment:java.home=/usr/java/jdk1..0_121/jre
-- ::, - INFO [main:Environment@] - Client environment:java.class.path=/opt/amq/zk1/bin/../build/classes:/opt/amq/zk1/bin/../build/lib/*.jar:/opt/amq/zk1/bin/../zookeeper-3.3.6.jar:/opt/amq/zk1/bin/../lib/log4j-1.2.15.jar:/opt/amq/zk1/bin/../lib/jline-0.9.94.jar:/opt/amq/zk1/bin/../src/java/lib/*.jar:/opt/amq/zk1/bin/../conf:.:/usr/java/jdk1.8.0_121/lib/dt.jar:/usr/java/jdk1.8.0_121/lib/tools.jar
2017-07-22 16:46:49,281 - INFO [main:Environment@97] - Client environment:java.library.path=/home/torch/install/lib:/usr/local/cudnn:/usr/local/cuda-8.0/lib64::/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
2017-07-22 16:46:49,281 - INFO [main:Environment@97] - Client environment:java.io.tmpdir=/tmp
2017-07-22 16:46:49,281 - INFO [main:Environment@97] - Client environment:java.compiler=<NA>
2017-07-22 16:46:49,281 - INFO [main:Environment@97] - Client environment:os.name=Linux
2017-07-22 16:46:49,281 - INFO [main:Environment@97] - Client environment:os.arch=amd64
2017-07-22 16:46:49,281 - INFO [main:Environment@97] - Client environment:os.version=3.10.0-229.el7.x86_64
2017-07-22 16:46:49,282 - INFO [main:Environment@97] - Client environment:user.name=root
2017-07-22 16:46:49,282 - INFO [main:Environment@97] - Client environment:user.home=/root
2017-07-22 16:46:49,282 - INFO [main:Environment@97] - Client environment:user.dir=/opt/amq/zk1/bin
2017-07-22 16:46:49,283 - INFO [main:ZooKeeper@379] - Initiating client connection, connectString=localhost:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@49c2faae
Welcome to ZooKeeper!
2017-07-22 16:46:49,295 - INFO [main-SendThread():ClientCnxn$SendThread@1058] - Opening socket connection to server localhost/0:0:0:0:0:0:0:1:2181
JLine support is enabled
2017-07-22 16:46:49,359 - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@947] - Socket connection established to localhost/0:0:0:0:0:0:0:1:2181, initiating session
2017-07-22 16:46:49,370 - INFO [main-SendThread(localhost:2181):ClientCnxn$SendThread@736] - Session establishment complete on server localhost/0:0:0:0:0:0:0:1:2181, sessionid = 0x15d68b1dbf90006, negotiated timeout = 30000 WATCHER:: WatchedEvent state:SyncConnected type:None path:null
[zk: localhost:2181(CONNECTED) 0] info
ZooKeeper -server host:port cmd args
stat path [watch]
set path data [version]
ls path [watch]
delquota [-n|-b] path
ls2 path [watch]
setAcl path acl
setquota -n|-b val path
history
redo cmdno
printwatches on|off
delete path [version]
sync path
listquota path
get path [watch]
create [-s] [-e] path data acl
addauth scheme auth
quit
getAcl path
close
connect host:port
[zk: localhost:2181(CONNECTED) 2] ls /
[activemq, zookeeper]
[zk: localhost:2181(CONNECTED) 3] ls /activemq
[leveldb-stores]
[zk: localhost:2181(CONNECTED) 4] ls /zookeeper
[quota]
[zk: localhost:2181(CONNECTED) 5] ls /zookeeper/quota
[]
[zk: localhost:2181(CONNECTED) 6]
2. 下载安装activemq
下载地址：http://archive.apache.org/dist/activemq/5.14.3/apache-activemq-5.14.3-bin.tar.gz
这个比较简单，我在三台机器上安装AMQ。
10.90.7.2
10.90.7.10
10.90.2.102
类似一个tomcat的应用，其实是jetty的web应用。
主要的修改配置文件，就是activemq.xml。
解压apache-activemq-5.14.3-bin.tar.gz，并重命名包名称为mq1（在10.90.7.10），mq2（在10.90.7.2），mq3（在10.90.2.102）.
下面以操作mq1为例介绍配置：
[root@localhost amq]# pwd
/opt/amq
[root@localhost amq]# ll
总用量
drwxr-xr-x root root 12月 apache-activemq-5.14.
-rw-r--r-- root root 2月 : apache-activemq-5.14.-bin.tar.gz
drwxr-xr-x root root 7月 : mq1
drwxr-xr-x root root 7月 : zk1
drwxr-xr-x root root 7月 : zk2
drwxr-xr-x root root 7月 : zk3
drwxr-xr-x www www 7月 zookeeper-3.3.
-rw-r--r-- root root 7月 : zookeeper-3.3..tar.gz
进入mq1目录，vim activemq.xml文件。我们这里amq的集群是基于zk的，所以，不要默认的持久化方案。即将原始的
<persistenceAdapter>
<kahaDB directory="${activemq.data}/kahadb"/>
</persistenceAdapter>
注释掉，采用下面的新内容：
<persistenceAdapter>
<replicatedLevelDB
directory="${activemq.data}/leveldb"
replicas="3"
bind="tcp://0.0.0.0:0"
zkAddress="10.90.7.10:2181,10.90.7.10:2182,10.90.7.10:2183"
hostname="10.90.7.10"
sync="local_disk"
zkPath="/activemq/leveldb-stores"
/>
</persistenceAdapter>
这里，hostname要修改为amq所在机器的IP地址，或者是能够解析的域名。zkAddress是zk集群的地址，即每个zk的IP：port对，之间用逗号分隔。zkPath这里是指定的，所以，在上面的zkCli.sh中可以ls命令看到的内容。
还有，broker这个节点中的brokerName，必须三个amq实例配置都要一样。这里，我配置为tkcss了。
。。。。。。
<broker xmlns="http://activemq.apache.org/schema/core" brokerName="tkcss" dataDirectory="${activemq.data}"> <destinationPolicy>
<policyMap>
<policyEntries>
<policyEntry topic=">" >
<!-- The constantPendingMessageLimitStrategy is used to prevent
slow topic consumers to block producers and affect other consumers
by limiting the number of messages that are retained
For more information, see: http://activemq.apache.org/slow-consumer-handling.html -->
<pendingMessageLimitStrategy>
<constantPendingMessageLimitStrategy limit=""/>
</pendingMessageLimitStrategy>
</policyEntry>
</policyEntries>
</policyMap>
</destinationPolicy> <!--
The managementContext is used to configure how ActiveMQ is exposed in
JMX. By default, ActiveMQ uses the MBean server that is started by
the JVM. For more information, see: http://activemq.apache.org/jmx.html
-->
<managementContext>
<managementContext createConnector="false"/>
</managementContext> <!--
Configure message persistence for the broker. The default persistence
mechanism is the KahaDB store (identified by the kahaDB tag).
For more information, see: http://activemq.apache.org/persistence.html
-->
<!--
<persistenceAdapter>
<kahaDB directory="${activemq.data}/kahadb"/>
</persistenceAdapter>
--> <persistenceAdapter>
<replicatedLevelDB
directory="${activemq.data}/leveldb"
replicas="3"
bind="tcp://0.0.0.0:0"
zkAddress="10.90.7.10:2181,10.90.7.10:2182,10.90.7.10:2183"
hostname="10.90.7.10"
sync="local_disk"
zkPath="/activemq/leveldb-stores"
/>
</persistenceAdapter>
。。。。。。
配置完成后，即可启动amq。
[root@localhost bin]# ./activemq start
启动后，正常的日志，这里看看amq3启动的日志：
-- ::, | INFO | Refreshing org.apache.activemq.xbean.XBeanBrokerFactory$@3e993445: startup date [Sat Jul :: CST ]; root of context hierarchy | org.apache.activemq.xbean.XBeanBrokerFactory$ | main
-- ::, | INFO | Using Persistence Adapter: Replicated LevelDB[/opt/amq/mq3/data/leveldb, 10.90.7.10:,10.90.7.10:,10.90.7.10://activemq/leveldb-stores] | org.apache.activemq.broker.BrokerService | main
-- ::, | INFO | Starting StateChangeDispatcher | org.apache.activemq.leveldb.replicated.groups.ZKClient | ZooKeeper state change dispatcher thread
-- ::, | INFO | Client environment:zookeeper.version=3.4.-, built on // : GMT | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:host.name=localhost | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:java.version=1.7.0_75 | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:java.vendor=Oracle Corporation | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:java.home=/usr/lib/jvm/java-1.7.-openjdk-1.7.0.75-2.5.4.2.el7_0.x86_64/jre | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:java.class.path=/opt/amq/mq3//bin/activemq.jar | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:java.library.path=/usr/local/cuda-7.5/lib64::/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:java.io.tmpdir=/opt/amq/mq3//tmp | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:java.compiler=<NA> | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:os.name=Linux | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:os.arch=amd64 | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:os.version=3.10.-.el7.x86_64 | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:user.name=root | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:user.home=/root | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Client environment:user.dir=/opt/amq/mq3/bin | org.apache.zookeeper.ZooKeeper | main
-- ::, | INFO | Initiating client connection, connectString=10.90.7.10:,10.90.7.10:,10.90.7.10: sessionTimeout= watcher=org.apache.activemq.leveldb.replicated.groups.ZKClient@5bb2dc75 | org.apache.zooke
eper.ZooKeeper | main
-- ::, | WARN | SASL configuration failed: javax.security.auth.login.LoginException: No JAAS configuration section named 'Client' was found in specified JAAS configuration file: '/opt/amq/mq3//conf/login.config'. Will
continue connection to Zookeeper server without SASL authentication, if Zookeeper server allows it. | org.apache.zookeeper.ClientCnxn | main-SendThread(10.90.7.10:)
-- ::, | INFO | Opening socket connection to server 10.90.7.10/10.90.7.10: | org.apache.zookeeper.ClientCnxn | main-SendThread(10.90.7.10:)
-- ::, | WARN | unprocessed event state: AuthFailed | org.apache.activemq.leveldb.replicated.groups.ZKClient | main-EventThread
-- ::, | INFO | Socket connection established to 10.90.7.10/10.90.7.10:, initiating session | org.apache.zookeeper.ClientCnxn | main-SendThread(10.90.7.10:)
-- ::, | WARN | Connected to an old server; r-o mode will be unavailable | org.apache.zookeeper.ClientCnxnSocket | main-SendThread(10.90.7.10:)
-- ::, | INFO | Session establishment complete on server 10.90.7.10/10.90.7.10:, sessionid = 0x35d68b2a0f10004, negotiated timeout = | org.apache.zookeeper.ClientCnxn | main-SendThread(10.90.7.10:)
-- ::, | INFO | Using the pure java LevelDB implementation. | org.apache.activemq.leveldb.LevelDBClient | ActiveMQ BrokerService[tkcss] Task-
-- ::, | INFO | Attaching to master: tcp://10.90.7.10:50942 | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | ActiveMQ BrokerService[tkcss] Task-1
-- ::, | INFO | Slave started | org.apache.activemq.leveldb.replicated.MasterElector | ActiveMQ BrokerService[tkcss] Task-
-- ::, | INFO | Slave skipping download of: log/.log | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Slave requested: .index/CURRENT | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Slave requested: .index/.log | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Slave requested: .index/MANIFEST- | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Attaching... Downloaded 0.02/1.66 kb and / files | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Attaching... Downloaded 1.61/1.66 kb and / files | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Attaching... Downloaded 1.66/1.66 kb and / files | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Attached | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
最后，尝试将当前的Master的AMQ给kill掉，在amq3的日志中，会看到重新选主的日志：
-- ::, | WARN | Unexpected session error: java.io.IOException: Connection reset by peer | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Using the pure java LevelDB implementation. | org.apache.activemq.leveldb.LevelDBClient | hawtdispatch-DEFAULT-
-- ::, | INFO | Attaching to master: tcp://10.90.7.10:50942 | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-1
-- ::, | WARN | Unexpected session error: java.net.ConnectException: 拒绝连接 | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Using the pure java LevelDB implementation. | org.apache.activemq.leveldb.LevelDBClient | hawtdispatch-DEFAULT-
-- ::, | INFO | Attaching to master: tcp://10.90.7.10:50942 | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-1
-- ::, | WARN | Unexpected session error: java.net.ConnectException: 拒绝连接 | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Using the pure java LevelDB implementation. | org.apache.activemq.leveldb.LevelDBClient | hawtdispatch-DEFAULT-
-- ::, | INFO | Attaching to master: tcp://10.90.7.10:50942 | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-1
-- ::, | WARN | Unexpected session error: java.net.ConnectException: 拒绝连接 | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Using the pure java LevelDB implementation. | org.apache.activemq.leveldb.LevelDBClient | hawtdispatch-DEFAULT-
-- ::, | INFO | Attaching to master: tcp://10.90.7.10:50942 | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-1
-- ::, | WARN | Unexpected session error: java.net.ConnectException: 拒绝连接 | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Using the pure java LevelDB implementation. | org.apache.activemq.leveldb.LevelDBClient | hawtdispatch-DEFAULT-
-- ::, | INFO | Attaching to master: tcp://10.90.7.10:50942 | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-1
-- ::, | WARN | Unexpected session error: java.net.ConnectException: 拒绝连接 | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Slave stopped | org.apache.activemq.leveldb.replicated.MasterElector | ActiveMQ BrokerService[tkcss] Task-
-- ::, | INFO | Using the pure java LevelDB implementation. | org.apache.activemq.leveldb.LevelDBClient | ActiveMQ BrokerService[tkcss] Task-
-- ::, | INFO | Attaching to master: tcp://10.90.7.2:2896 | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | ActiveMQ BrokerService[tkcss] Task-2
-- ::, | INFO | Slave started | org.apache.activemq.leveldb.replicated.MasterElector | ActiveMQ BrokerService[tkcss] Task-
-- ::, | INFO | Slave requested: .index/.log | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Slave requested: .index/.sst | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Slave requested: .index/CURRENT | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Slave requested: .index/MANIFEST- | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Attaching... Downloaded 5.17/10.18 kb and / files | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Attaching... Downloaded 9.01/10.18 kb and / files | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Attaching... Downloaded 10.06/10.18 kb and / files | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Attaching... Downloaded 10.08/10.18 kb and / files | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Attaching... Downloaded 10.18/10.18 kb and / files | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
-- ::, | INFO | Attached | org.apache.activemq.leveldb.replicated.SlaveLevelDBStore | hawtdispatch-DEFAULT-
到此，说明我们的三个实例amq基于zk的集群已经配置好。
在应用程序中，brokerUrl的配置，可以写成这样：
brokerURL=failover:(tcp://10.90.7.2:61616,tcp://10.90.7.10:61616,tcp://10.90.2.102:61616)?initialReconnectDelay=1000
userName=admin
password=admin
采用系统默认的用户权限管理。配置信息在jetty.xml里面。
关于spring集成amq的应用，这里不讲，下一个博文再叙。
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