如何使Vert.x和Apache Ignite Client一起工作？

Question

我部署了Apache Ignite集群，並且需要對Vert.x后端的緩存執行不同的操作。
我使用Apache Ignite客戶端（而非瘦客戶端）成功連接到集群。 Apache Ingite客戶端在Vert.x垂直版本內運行：

 vertx.deployVerticle(new IgniteVerticle(),
                    new DeploymentOptions().setInstances(1).setWorker(true),
                    apacheIgniteVerticleDeployment.completer());

但是過了一段時間，我開始收到以下消息：

SEVERE: Blocked system-critical thread has been detected. 
This can lead to cluster-wide undefined behaviour  [threadName=tcp-comm-worker, blockedFor=28s]

SEVERE: Critical system error detected. Will be handled accordingly to configured handler 
[hnd=NoOpFailureHandler [super=AbstractFailureHandler [ignoredFailureTypes=[SYSTEM_WORKER_BLOCKED]]], failureCtx=FailureContext [type=SYSTEM_WORKER_BLOCKED,
 err=class o.a.i.IgniteException: GridWorker [name=tcp-comm-worker, igniteInstanceName=null, finished=false, heartbeatTs=1567112815022]]]

class org.apache.ignite.IgniteException: GridWorker [name=tcp-comm-worker, igniteInstanceName=null, finished=false, heartbeatTs=1567112815022]
    at org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1831)  at org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1826)
    at org.apache.ignite.internal.worker.WorkersRegistry.onIdle(WorkersRegistry.java:233)
    at org.apache.ignite.internal.util.worker.GridWorker.onIdle(GridWorker.java:297)
    at org.apache.ignite.internal.processors.timeout.GridTimeoutProcessor$TimeoutWorker.body(GridTimeoutProcessor.java:221)
    at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120)
    at java.lang.Thread.run(Thread.java:748)

這樣的消息大約每10秒出現一次。 我猜想這可能與Vert.x的工作方式有關。
這些例外的原因可能是什么？

Answer 1

您可以嘗試在IgniteConfiguration上增加systemWorkerBlockedTimeout以使此消息消失。 在文檔中查看更多信息： https : //apacheignite.readme.io/docs/critical-failures-handling