Hi everyone, As a quick note on what we do here, we listen to NODE_FAILED, and NODE_SEGMENTED events and upon such events, we use Ignition.stopAll(true) and Ignition.start() to restart the Ignite grid in a given JVM. Here Ignite does not starts as a standalone process by itself, but bootstrap programmatically since it's meant to be a part of some other main process.
So we received a NODE_FAILED evet and restarted Ignite where we see following error and start fails. And "mycache" is created with LRU eviction policy at Ignite startup process. As per error, it tries to registering an LruEvictionPolicy MBean twice. We use a cache named mycache in PARTITIONED mode with 4 nodes in the cluster. Any idea for this behavior ? org.apache.ignite.IgniteException: Failed to register MBean for component: LruEvictionPolicy [max=100000, batchSize=1, maxMemSize=524288000, memSize=0, size=0] at org.apache.ignite.internal.util.IgniteUtils.convertException(IgniteUtils.java:946) at org.apache.ignite.Ignition.start(Ignition.java:325) at com.test.IgniteRuntime.start(IgniteRuntime.java:87) at com.test.segmentation.SegmentationResolver.recycle(SegmentationResolver.java:61) at com.test.RandomizedDelayResolver.resolve(RandomizedDelayResolver.java:47) at com.test.SegmentationProcessor.lambda$init$2(SegmentationProcessor.java:95) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.ignite.IgniteCheckedException: Failed to register MBean for component: LruEvictionPolicy [max=100000, batchSize=1, maxMemSize=524288000, memSize=0, size=0] at org.apache.ignite.internal.processors.cache.GridCacheProcessor.registerMbean(GridCacheProcessor.java:3518) at org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepare(GridCacheProcessor.java:557) at org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepare(GridCacheProcessor.java:529) at org.apache.ignite.internal.processors.cache.GridCacheProcessor.createCache(GridCacheProcessor.java:1306) at org.apache.ignite.internal.processors.cache.GridCacheProcessor.onKernalStart(GridCacheProcessor.java:801) at org.apache.ignite.internal.IgniteKernal.start(IgniteKernal.java:959) at org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start0(IgnitionEx.java:1799) at org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start(IgnitionEx.java:1602) at org.apache.ignite.internal.IgnitionEx.start0(IgnitionEx.java:1042) at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:569) at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:516) at org.apache.ignite.Ignition.start(Ignition.java:322) ... 11 common frames omitted Caused by: javax.management.InstanceAlreadyExistsException: org.apache:clsLdr=764c12b6,group=mycache,name=org.apache.ignite.cache.eviction.lru.LruEvictionPolicy at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324) at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522) at org.apache.ignite.internal.util.IgniteUtils.registerCacheMBean(IgniteUtils.java:4523) at org.apache.ignite.internal.processors.cache.GridCacheProcessor.registerMbean(GridCacheProcessor.java:3514) ... 22 common frames omitted
