Ehcache jgroups方式同步缓存出现问题总结
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ehcache配置文件按官网配置如下：
1
<?
xml version="1.0" encoding="UTF-8"
?>
2
<
ehcache
>
3
4
<
diskStore
path
="java.io.tmpdir"
/>
5
6
<
cacheManagerPeerProviderFactory
7
class
="net.sf.ehcache.distribution.jgroups.JGroupsCacheManagerPeerProviderFactory"
8
properties
="connect=TCP(start_port=7777):
9
TCPPING(initial_hosts=133.96.93.111[7777],133.96.93.105[7777];port_range=10;timeout=3000;
10
num_initial_members=3;up_thread=true;down_thread=true):
11
VERIFY_SUSPECT(timeout=1500;down_thread=false;up_thread=false):
12
pbcast.NAKACK(down_thread=true;up_thread=true;gc_lag=100;retransmit_timeout=3000):
13
pbcast.GMS(join_timeout=5000;join_retry_timeout=2000;shun=false;
14
print_local_addr=false;down_thread=true;up_thread=true)"
15
propertySeparator
="::"
/>
16
17
<
defaultCache
maxElementsInMemory
="10000"
overflowToDisk
="false"
18
eternal
="false"
memoryStoreEvictionPolicy
="LRU"
19
maxElementsOnDisk
="10000000"
diskExpiryThreadIntervalSeconds
="600"
20
timeToIdleSeconds
="3600"
timeToLiveSeconds
="100000"
21
diskPersistent
="false"
/>
22
23
<
cache
name
="AutoAssignUsers"
maxElementsInMemory
="10000"
eternal
="true"
24
overflowToDisk
="false"
timeToIdleSeconds
="1"
timeToLiveSeconds
="600"
25
memoryStoreEvictionPolicy
="LRU"
>
26
<
cacheEventListenerFactory
27
class
="net.sf.ehcache.distribution.jgroups.JGroupsCacheReplicatorFactory"
28
properties
="replicateAsynchronously=true, replicatePuts=true, replicateUpdates=true,
29
replicateUpdatesViaCopy=true, replicateRemovals=true "
/>
30
</
cache
>
31
32
</
ehcache
>
按官网配置后启动报错：
[net.sf.ehcache.distribution.jgroups.JGroupsCacheManagerPeerProvider] (main) Failed to create JGroups Channel, replication will not function.
org.jgroups.ChannelException: unable to setup the protocol stack
at org.jgroups.JChannel.init(JChannel.java:1703)
at org.jgroups.JChannel.
<
init
>
(JChannel.java:246)
at org.jgroups.JChannel.
<
init
>
(JChannel.java:229)
at net.sf.ehcache.distribution.jgroups.JGroupsCacheManagerPeerProvider.init(JGroupsCacheManagerPeerProvider.java:127)
at net.sf.ehcache.CacheManager.init(CacheManager.java:328)
at net.sf.ehcache.CacheManager.
<
init
>
(CacheManager.java:226)
at net.sf.ehcache.CacheManager.create(CacheManager.java:690)
Caused by: java.lang.IllegalArgumentException: start_port cannot be set to 0, as no dynamic discovery protocol (e.g. MPING or TCPGOSSIP) has been detected.
at org.jgroups.protocols.BasicTCP.init(BasicTCP.java:90)
at org.jgroups.stack.ProtocolStack.initProtocolStack(ProtocolStack.java:705)
at org.jgroups.stack.ProtocolStack.setup(ProtocolStack.java:457)
at org.jgroups.JChannel.init(JChannel.java:1699)
之后google找到解决方法：
①将
start_port=7800 改为 bind_port=7800
即
<
cacheManagerPeerProviderFactory
class
="net.sf.ehcache.distribution.jgroups.JGroupsCacheManagerPeerProviderFactory"
properties
="connect=TCP(bind_port=7777):
TCPPING(initial_hosts=133.96.93.111[7777],133.96.93.105[7777];port_range=10;timeout=3000;
num_initial_members=3;up_thread=true;down_thread=true):
VERIFY_SUSPECT(timeout=1500;down_thread=false;up_thread=false):
pbcast.NAKACK(down_thread=true;up_thread=true;gc_lag=100;retransmit_timeout=3000):
pbcast.GMS(join_timeout=5000;join_retry_timeout=2000;shun=false;
print_local_addr=false;down_thread=true;up_thread=true)"
propertySeparator
="::"
/>
②<EM style=‘line-height: 1.5; font-family: "Courier New"; font-size: 12px;‘ id="__mceDel">cacheManagerPeerProviderFactory 中properties的属性改为文件引用如下：
<
cacheManagerPeerProviderFactory
class
="net.sf.ehcache.distribution.jgroups.JGroupsCacheManagerPeerProviderFactory"
properties
="jgroups_tcp.xml"
/>
jgroups_tcp.xml :
<?
xml version=‘1.0‘
?>
<
config
>
<
TCP
start_port
="7777"
/>
<
TCPPING
timeout
="3000"
initial_hosts
="139.99.93.111[7777],139.99.93.105[7777]"
port_range
="10"
num_initial_members
="3"
/>
<
VERIFY_SUSPECT
timeout
="1500"
/>
<
pbcast.NAKACK
use_mcast_xmit
="false"
gc_lag
="100"
retransmit_timeout
="300,600,1200,2400,4800"
discard_delivered_msgs
="true"
/>
<
pbcast.STABLE
stability_delay
="1000"
desired_avg_gossip
="50000"
max_bytes
="400000"
/>
<
pbcast.GMS
print_local_addr
="true"
join_timeout
="5000"
shun
="false"
view_bundling
="true"
/>
</
config
>
我试了第一种方法可以缓存同步，第二种没试，但是解决方法中有，可以试试
给出原地址：http://forums.terracotta.org/forums/posts/list/4660.page
原文：http://www.cnblogs.com/luoyanli/p/3717878.html
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