我正在使用Hazelcast v3.3。 Hazelcast服务器运行一些地图商店实施。我偶尔会在日志中看到以下警告，需要了解可能导致此问题的原因以及是否可能导致hazelcast中的数据丢失。我目前有一个非常小的集群进行测试（4VM运行Ubuntu13 - 每个2GB RAM）。
2014-09-14 18:55:21,886 WARN c.h.s.i.BasicInvocation [main] [xxx.xxx.xxx.xxx]:5701 [testApp] [3.3] While asking 'is-executing': BasicInvocationFuture{invocation=BasicInvocation{ serviceName='hz:
impl:mapService', op=com.hazelcast.spi.impl.PartitionIteratingOperation@285583d4, partitionId=-1, replicaIndex=0, tryCount=10, tryPauseMillis=300, invokeCount=1, callTimeout=60000, target=Address[xxx.xxx.xxx.xxx]:5701}, done=false} java.util.concurrent.TimeoutException: Call BasicInvocation{ serviceName='hz:impl:mapService', op=com.hazelcast.spi.impl.IsStillExecutingOperation@5b202ff, partit
ionId=-1, replicaIndex=0, tryCount=0, tryPauseMillis=0, invokeCount=1, callTimeout=5000, target=Address[xxx.xxx.xxx.xxx]:5701} encountered a timeout
at com.hazelcast.spi.impl.BasicInvocationFuture.resolveApplicationResponse(BasicInvocationFuture.java:321)
at com.hazelcast.spi.impl.BasicInvocationFuture.resolveApplicationResponseOrThrowException(BasicInvocationFuture.java:289)
at com.hazelcast.spi.impl.BasicInvocationFuture.get(BasicInvocationFuture.java:181)
at com.hazelcast.spi.impl.BasicInvocationFuture.isOperationExecuting(BasicInvocationFuture.java:390)
at com.hazelcast.spi.impl.BasicInvocationFuture.waitForResponse(BasicInvocationFuture.java:228)
at com.hazelcast.spi.impl.BasicInvocationFuture.get(BasicInvocationFuture.java:180)
at com.hazelcast.spi.impl.BasicInvocationFuture.get(BasicInvocationFuture.java:160)
at com.hazelcast.spi.impl.BasicOperationService$InvokeOnPartitions.awaitCompletion(BasicOperationService.java:489)
at com.hazelcast.spi.impl.BasicOperationService$InvokeOnPartitions.invoke(BasicOperationService.java:458)
at com.hazelcast.spi.impl.BasicOperationService$InvokeOnPartitions.access$600(BasicOperationService.java:430)
at com.hazelcast.spi.impl.BasicOperationService.invokeOnAllPartitions(BasicOperationService.java:293)
at com.hazelcast.map.proxy.MapProxySupport.size(MapProxySupport.java:616)
at com.hazelcast.map.proxy.MapProxyImpl.size(MapProxyImpl.java:72)
at com.akkadian.wildmetrix.StartHcastServer.main(StartHcastServer.java:105)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)