我正在尝试使用客户端服务器模式评估 Apache Ignite。我之前有一些使用 Hazelcast 和 Infinispan 的经验，所以我有 IMDG 背景。
我在客户端-服务器模式下使用 Ignite 的初步体验并不是很顺利。我可能听起来很固执，但我认为从嵌入式服务器模式的角度来看，大多数高级用例都是合适的。
问题:
我确实有很多，但我正在发布我现在面临的一个。我使用的是v2.1.0。我正在尝试利用 Ignite 的持久内存功能。因此，我在服务器配置中打开了持久性，如文档中所述。
<property name="persistentStoreConfiguration">
<bean class="org.apache.ignite.configuration.PersistentStoreConfiguration"/>
</property>
现在，当我尝试使用代码从客户端连接时
Ignition.setClientMode(true);
IgniteConfiguration cfg = new IgniteConfiguration();
//cfg.setPeerClassLoadingEnabled(true);
TcpCommunicationSpi commSpi = new TcpCommunicationSpi();
commSpi.setSlowClientQueueLimit(1000);
TcpDiscoverySpi discoverySpi = new TcpDiscoverySpi();
TcpDiscoveryVmIpFinder ipfinder = new TcpDiscoveryVmIpFinder();
ipfinder.setAddresses(Arrays.asList("localhost"));
discoverySpi.setIpFinder(ipfinder);
cfg.setCommunicationSpi(commSpi);
cfg.setDiscoverySpi(discoverySpi);
ignite = Ignition.start(cfg);
//ignite.active(true);
CacheConfiguration<String, Person> config = new CacheConfiguration<>("Person");
config.setCacheMode(CacheMode.PARTITIONED);
//config.setOnheapCacheEnabled(true);
//config.setEvictionPolicy(new LruEvictionPolicy<>(2));
ignite.getOrCreateCache(config);
我收到以下异常:
class org.apache.ignite.IgniteException: Can not perform the operation because the cluster is inactive. Note, that the cluster is considered inactive by default if Ignite Persistent Store is used to let all the nodes join the cluster. To activate the cluster call Ignite.activate(true).
at org.apache.ignite.internal.IgniteKernal.checkClusterState(IgniteKernal.java:3712)
at org.apache.ignite.internal.IgniteKernal.getOrCreateCache0(IgniteKernal.java:2837)
at org.apache.ignite.internal.IgniteKernal.getOrCreateCache(IgniteKernal.java:2824)
如果我设置ignite.activate(true)，代码就会挂起(被阻止？等待？)。为什么我的客户端(我假设)不作为数据节点参与，却需要表现得像一个数据节点？我在这里错过了什么吗？任何帮助将不胜感激。
这是我在服务器上看到的异常。
[13:54:52] Topology snapshot [ver=5, servers=1, clients=0, CPUs=4, heap=0.13GB]
[14:02:19] Topology snapshot [ver=6, servers=1, clients=1, CPUs=4, heap=1.9GB]
[14:02:20] Default checkpoint page buffer size is too small, setting to an adjusted value: 1.6 GiB
[14:02:20,446][SEVERE][exchange-worker-#34%null%][GridDhtPartitionsExchangeFuture] Failed to reinitialize local partitions (preloading will be stopped
): GridDhtPartitionExchangeId [topVer=AffinityTopologyVersion [topVer=6, minorTopVer=1], nodeId=bccb36d2, evt=DISCOVERY_CUSTOM_EVT]
java.lang.OutOfMemoryError
at sun.misc.Unsafe.allocateMemory(Native Method)
at org.apache.ignite.internal.util.GridUnsafe.allocateMemory(GridUnsafe.java:1054)
at org.apache.ignite.internal.mem.unsafe.UnsafeMemoryProvider.nextRegion(UnsafeMemoryProvider.java:80)
at org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl.start(PageMemoryImpl.java:276)
at org.apache.ignite.internal.processors.cache.persistence.IgniteCacheDatabaseSharedManager.startMemoryPolicies(IgniteCacheDatabaseSharedManag
er.java:194)
at org.apache.ignite.internal.processors.cache.persistence.IgniteCacheDatabaseSharedManager.onActivate(IgniteCacheDatabaseSharedManager.java:9
49)
at org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.onActivate(GridCacheDatabaseSharedManager.java:459)
at org.apache.ignite.internal.processors.cache.GridCacheSharedContext.activate(GridCacheSharedContext.java:244)
at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.onClusterStateChangeRequest(GridDhtPa
rtitionsExchangeFuture.java:762)
at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.init(GridDhtPartitionsExchangeFuture.
java:574)
at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:19
01)
at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at java.lang.Thread.run(Thread.java:745)
[14:02:20,478][SEVERE][exchange-worker-#34%null%][GridCachePartitionExchangeManager] Runtime error caught during grid runnable execution: GridWorker [
name=partition-exchanger, igniteInstanceName=null, finished=false, hashCode=1380507612, interrupted=false, runner=exchange-worker-#34%null%]
java.lang.OutOfMemoryError
at sun.misc.Unsafe.allocateMemory(Native Method)
at org.apache.ignite.internal.util.GridUnsafe.allocateMemory(GridUnsafe.java:1054)
at org.apache.ignite.internal.mem.unsafe.UnsafeMemoryProvider.nextRegion(UnsafeMemoryProvider.java:80)
at org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl.start(PageMemoryImpl.java:276)
at org.apache.ignite.internal.processors.cache.persistence.IgniteCacheDatabaseSharedManager.startMemoryPolicies(IgniteCacheDatabaseSharedManag
er.java:194)
at org.apache.ignite.internal.processors.cache.persistence.IgniteCacheDatabaseSharedManager.onActivate(IgniteCacheDatabaseSharedManager.java:9
49)
at org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.onActivate(GridCacheDatabaseSharedManager.java:459)
at org.apache.ignite.internal.processors.cache.GridCacheSharedContext.activate(GridCacheSharedContext.java:244)
at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.onClusterStateChangeRequest(GridDhtPa
rtitionsExchangeFuture.java:762)
at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.init(GridDhtPartitionsExchangeFuture.
java:574)
at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:19
01)
at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at java.lang.Thread.run(Thread.java:745)
Exception in thread "exchange-worker-#34%null%" java.lang.OutOfMemoryError
at sun.misc.Unsafe.allocateMemory(Native Method)
at org.apache.ignite.internal.util.GridUnsafe.allocateMemory(GridUnsafe.java:1054)
at org.apache.ignite.internal.mem.unsafe.UnsafeMemoryProvider.nextRegion(UnsafeMemoryProvider.java:80)
at org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl.start(PageMemoryImpl.java:276)
at org.apache.ignite.internal.processors.cache.persistence.IgniteCacheDatabaseSharedManager.startMemoryPolicies(IgniteCacheDatabaseSharedManag
er.java:194)
at org.apache.ignite.internal.processors.cache.persistence.IgniteCacheDatabaseSharedManager.onActivate(IgniteCacheDatabaseSharedManager.java:9
49)
at org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.onActivate(GridCacheDatabaseSharedManager.java:459)
at org.apache.ignite.internal.processors.cache.GridCacheSharedContext.activate(GridCacheSharedContext.java:244)
at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.onClusterStateChangeRequest(GridDhtPa
rtitionsExchangeFuture.java:762)
at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.init(GridDhtPartitionsExchangeFuture.
java:574)
at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:19
01)
at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at java.lang.Thread.run(Thread.java:745)
[14:02:20,846][SEVERE][query-#174%null%][msg] Received message without registered handler (will ignore) [msg=GridCacheQueryRequest [id=3, cacheName=ig
nite-sys-cache, type=SCAN, fields=false, clause=null, clsName=null, keyValFilter=null, rdc=null, trans=null, pageSize=1024, incBackups=false, cancel=f
alse, incMeta=false, all=false, keepBinary=false, subjId=61cfa42e-40af-473d-a9f6-2fe249d66910, taskHash=0, part=-1, topVer=AffinityTopologyVersion [to
pVer=6, minorTopVer=1], super=GridCacheIdMessage [cacheId=-2100569601]], node=61cfa42e-40af-473d-a9f6-2fe249d66910, locTopVer=AffinityTopologyVersion
[topVer=-1, minorTopVer=0], msgTopVer=AffinityTopologyVersion [topVer=6, minorTopVer=1], desc=DynamicCacheDescriptor [deploymentId=4093bcfdd51-bae6026
e-62b0-4189-854b-9efa4b8bf23f, staticCfg=true, sql=false, cacheType=UTILITY, template=false, updatesAllowed=true, cacheId=-2100569601, rcvdFrom=bccb36
d2-2c8f-4642-b84d-63b5dd2ab93b, objCtx=null, rcvdOnDiscovery=false, startTopVer=AffinityTopologyVersion [topVer=6, minorTopVer=0], rcvdFromVer=Affinit
yTopologyVersion [topVer=1, minorTopVer=0], clientCacheStartVer=null, schema=QuerySchema [], grpDesc=CacheGroupDescriptor [grpId=-2100569601, grpName=
null, startTopVer=null, rcvdFrom=bccb36d2-2c8f-4642-b84d-63b5dd2ab93b, deploymentId=4093bcfdd51-bae6026e-62b0-4189-854b-9efa4b8bf23f, caches={ignite-s
ys-cache=-2100569601}, rcvdFromVer=AffinityTopologyVersion [topVer=1, minorTopVer=0], cacheName=ignite-sys-cache], cacheName=ignite-sys-cache]]
Registered listeners:
最佳答案
Topology snapshot [ver=5, servers=1, clients=0, CPUs=4, heap=0.13GB]
您启动的 Ignite 服务器节点的堆内存太小(128mb)，请尝试增加它(参数 -Xmx 和 -Xms)。
此外，默认情况下，Ignite 会尝试为其 pageMemory 分配计算机上所有物理内存的 0.8。所以，如果你想在同一台机器上启动多个节点，你需要为节点配置MemoryPolicy。
检查这个documentation了解更多信息和示例
关于java - 在客户端-服务器模式下使用 Apache Ignite，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/45670370/