[ 
https://issues.apache.org/jira/browse/IGNITE-12456?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Aleksey Plekhanov updated IGNITE-12456:
---------------------------------------
    Fix Version/s:     (was: 2.9)
                   2.10

> Cluster Data Store grid gets Corrupted for Load test
> ----------------------------------------------------
>
>                 Key: IGNITE-12456
>                 URL: https://issues.apache.org/jira/browse/IGNITE-12456
>             Project: Ignite
>          Issue Type: Bug
>          Components: general
>    Affects Versions: 2.7
>            Reporter: Ravi Kumar Powli
>            Assignee: Alexey Goncharuk
>            Priority: Critical
>             Fix For: 2.10
>
>         Attachments: default-config.xml
>
>
> We have Apache Ignite 3 node cluster setup with Amazon S3 Based Discovery.we 
> are into AWS cloud environment with Microservice model with 8 
> microservices.we are using Ignite for session data store.While performing 
> load test we are facing data grid issues if the number of clients reached 40 
> , Once data grid got corrupted we will lost the session store data and 
> Application will not respond due to session data also corrupted and all the 
> instances will auto scaled down to initial size 8.We need to restart Apache 
> Ignite to make the Application up.Please find the attached Apache Ignite 
> Configuration for your reference.
> This is Impacting the scalability for the micro-services. It is very evident 
> that the current state based architecture will not scale beyond a certain TPS 
> and the state store, especially Ignite becomes the single point of failure, 
> stalling the full Micro-service cluster.
>  Apache Ignite Version : 2.7.0
> {code}
> 07:24:46,678][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][G]
>  Blocked system-critical thread has been detected. This can lead to 
> cluster-wide undefined behaviour [threadName=sys-stripe-5, 
> blockedFor=21s]07:24:46,678][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][G]
>  Blocked system-critical thread has been detected. This can lead to 
> cluster-wide undefined behaviour [threadName=sys-stripe-5, 
> blockedFor=21s][07:24:46,680][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][]
>  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=sys-stripe-5, igniteInstanceName=DataStoreIgniteCache, finished=false, 
> heartbeatTs=1575271465499]]]class org.apache.ignite.IgniteException: 
> GridWorker [name=sys-stripe-5, igniteInstanceName=DataStoreIgniteCache, 
> finished=false, heartbeatTs=1575271465499] at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1831)
>  at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1826)
>  at 
> org.apache.ignite.internal.worker.WorkersRegistry.onIdle(WorkersRegistry.java:233)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.onIdle(GridWorker.java:297) 
> at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.lambda$new$0(ServerImpl.java:2663)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorker.body(ServerImpl.java:7181)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.body(ServerImpl.java:2700)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorkerThread.body(ServerImpl.java:7119)
>  at 
> org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62)[07:24:52,692][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][G]
>  Blocked system-critical thread has been detected. This can lead to 
> cluster-wide undefined behaviour [threadName=ttl-cleanup-worker, 
> blockedFor=27s][07:24:52,692][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][]
>  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=ttl-cleanup-worker, igniteInstanceName=DataStoreIgniteCache, 
> finished=false, heartbeatTs=1575271465044]]]class 
> org.apache.ignite.IgniteException: GridWorker [name=ttl-cleanup-worker, 
> igniteInstanceName=DataStoreIgniteCache, finished=false, 
> heartbeatTs=1575271465044] at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1831)
>  at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1826)
>  at 
> org.apache.ignite.internal.worker.WorkersRegistry.onIdle(WorkersRegistry.java:233)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.onIdle(GridWorker.java:297) 
> at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.lambda$new$0(ServerImpl.java:2663)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorker.body(ServerImpl.java:7181)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.body(ServerImpl.java:2700)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorkerThread.body(ServerImpl.java:7119)
>  at 
> org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62)[07:24:55,694][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][G]
>  Blocked system-critical thread has been detected. This can lead to 
> cluster-wide undefined behaviour [threadName=sys-stripe-1, 
> blockedFor=24s][07:24:55,694][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][]
>  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=sys-stripe-1, igniteInstanceName=DataStoreIgniteCache, finished=false, 
> heartbeatTs=1575271471538]]]class org.apache.ignite.IgniteException: 
> GridWorker [name=sys-stripe-1, igniteInstanceName=DataStoreIgniteCache, 
> finished=false, heartbeatTs=1575271471538] at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1831)
>  at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1826)
>  at 
> org.apache.ignite.internal.worker.WorkersRegistry.onIdle(WorkersRegistry.java:233)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.onIdle(GridWorker.java:297) 
> at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.lambda$new$0(ServerImpl.java:2663)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorker.body(ServerImpl.java:7181)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.body(ServerImpl.java:2700)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorkerThread.body(ServerImpl.java:7119)
>  at 
> org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62)[07:24:58,700][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][G]
>  Blocked system-critical thread has been detected. This can lead to 
> cluster-wide undefined behaviour [threadName=sys-stripe-4, 
> blockedFor=29s][07:24:58,700][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][]
>  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=sys-stripe-4, igniteInstanceName=DataStoreIgniteCache, finished=false, 
> heartbeatTs=1575271469397]]]class org.apache.ignite.IgniteException: 
> GridWorker [name=sys-stripe-4, igniteInstanceName=DataStoreIgniteCache, 
> finished=false, heartbeatTs=1575271469397] at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1831)
>  at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1826)
>  at 
> org.apache.ignite.internal.worker.WorkersRegistry.onIdle(WorkersRegistry.java:233)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.onIdle(GridWorker.java:297) 
> at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.lambda$new$0(ServerImpl.java:2663)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorker.body(ServerImpl.java:7181)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.body(ServerImpl.java:2700)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorkerThread.body(ServerImpl.java:7119)
>  at 
> org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62)[07:24:59,833][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][G]
>  Blocked system-critical thread has been detected. This can lead to 
> cluster-wide undefined behaviour [threadName=sys-stripe-7, 
> blockedFor=29s][07:24:59,833][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][]
>  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=sys-stripe-7, igniteInstanceName=DataStoreIgniteCache, finished=false, 
> heartbeatTs=1575271469973]]]class org.apache.ignite.IgniteException: 
> GridWorker [name=sys-stripe-7, igniteInstanceName=DataStoreIgniteCache, 
> finished=false, heartbeatTs=1575271469973] at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1831)
>  at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1826)
>  at 
> org.apache.ignite.internal.worker.WorkersRegistry.onIdle(WorkersRegistry.java:233)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.onIdle(GridWorker.java:297) 
> at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.lambda$new$0(ServerImpl.java:2663)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorker.body(ServerImpl.java:7181)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.body(ServerImpl.java:2700)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorkerThread.body(ServerImpl.java:7119)
>  at 
> org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62)[07:25:04,716][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][G]
>  Blocked system-critical thread has been detected. This can lead to 
> cluster-wide undefined behaviour [threadName=sys-stripe-0, 
> blockedFor=39s][07:25:04,716][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][]
>  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=sys-stripe-0, igniteInstanceName=DataStoreIgniteCache, finished=false, 
> heartbeatTs=1575271464782]]]class org.apache.ignite.IgniteException: 
> GridWorker [name=sys-stripe-0, igniteInstanceName=DataStoreIgniteCache, 
> finished=false, heartbeatTs=1575271464782] at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1831)
>  at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1826)
>  at 
> org.apache.ignite.internal.worker.WorkersRegistry.onIdle(WorkersRegistry.java:233)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.onIdle(GridWorker.java:297) 
> at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.lambda$new$0(ServerImpl.java:2663)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorker.body(ServerImpl.java:7181)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.body(ServerImpl.java:2700)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorkerThread.body(ServerImpl.java:7119)
>  at 
> org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62)[07:25:05,870][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][G]
>  Blocked system-critical thread has been detected. This can lead to 
> cluster-wide undefined behaviour [threadName=sys-stripe-3, 
> blockedFor=34s][07:25:05,870][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][]
>  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=sys-stripe-3, igniteInstanceName=DataStoreIgniteCache, finished=false, 
> heartbeatTs=1575271471528]]]class org.apache.ignite.IgniteException: 
> GridWorker [name=sys-stripe-3, igniteInstanceName=DataStoreIgniteCache, 
> finished=false, heartbeatTs=1575271471528] at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1831)
>  at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1826)
>  at 
> org.apache.ignite.internal.worker.WorkersRegistry.onIdle(WorkersRegistry.java:233)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.onIdle(GridWorker.java:297) 
> at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.lambda$new$0(ServerImpl.java:2663)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorker.body(ServerImpl.java:7181)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.body(ServerImpl.java:2700)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorkerThread.body(ServerImpl.java:7119)
>  at 
> org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62)[07:25:07,011][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][G]
>  Blocked system-critical thread has been detected. This can lead to 
> cluster-wide undefined behaviour [threadName=sys-stripe-6, 
> blockedFor=41s][07:25:07,011][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][]
>  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=sys-stripe-6, igniteInstanceName=DataStoreIgniteCache, finished=false, 
> heartbeatTs=1575271465428]]]class org.apache.ignite.IgniteException: 
> GridWorker [name=sys-stripe-6, igniteInstanceName=DataStoreIgniteCache, 
> finished=false, heartbeatTs=1575271465428] at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1831)
>  at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1826)
>  at 
> org.apache.ignite.internal.worker.WorkersRegistry.onIdle(WorkersRegistry.java:233)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.onIdle(GridWorker.java:297) 
> at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.lambda$new$0(ServerImpl.java:2663)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorker.body(ServerImpl.java:7181)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.body(ServerImpl.java:2700)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorkerThread.body(ServerImpl.java:7119)
>  at 
> org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62)[07:25:08,167][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][G]
>  Blocked system-critical thread has been detected. This can lead to 
> cluster-wide undefined behaviour [threadName=sys-stripe-5, 
> blockedFor=42s][07:25:08,167][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][]
>  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=sys-stripe-5, igniteInstanceName=DataStoreIgniteCache, finished=false, 
> heartbeatTs=1575271465499]]]class org.apache.ignite.IgniteException: 
> GridWorker [name=sys-stripe-5, igniteInstanceName=DataStoreIgniteCache, 
> finished=false, heartbeatTs=1575271465499] at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1831)
>  at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1826)
>  at 
> org.apache.ignite.internal.worker.WorkersRegistry.onIdle(WorkersRegistry.java:233)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.onIdle(GridWorker.java:297) 
> at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.lambda$new$0(ServerImpl.java:2663)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorker.body(ServerImpl.java:7181)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.body(ServerImpl.java:2700)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorkerThread.body(ServerImpl.java:7119)
>  at 
> org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62)[07:25:09,310][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][G]
>  Blocked system-critical thread has been detected. This can lead to 
> cluster-wide undefined behaviour [threadName=sys-stripe-2, 
> blockedFor=40s][07:25:09,311][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][]
>  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=sys-stripe-2, igniteInstanceName=DataStoreIgniteCache, finished=false, 
> heartbeatTs=1575271468397]]]class org.apache.ignite.IgniteException: 
> GridWorker [name=sys-stripe-2, igniteInstanceName=DataStoreIgniteCache, 
> finished=false, heartbeatTs=1575271468397] at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1831)
>  at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1826)
>  at 
> org.apache.ignite.internal.worker.WorkersRegistry.onIdle(WorkersRegistry.java:233)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.onIdle(GridWorker.java:297) 
> at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.lambda$new$0(ServerImpl.java:2663)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorker.body(ServerImpl.java:7181)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.body(ServerImpl.java:2700)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorkerThread.body(ServerImpl.java:7119)
>  at 
> org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62)[07:25:14,183][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][G]
>  Blocked system-critical thread has been detected. This can lead to 
> cluster-wide undefined behaviour [threadName=ttl-cleanup-worker, 
> blockedFor=49s][07:25:14,183][SEVERE][tcp-disco-msg-worker-#2%DataStoreIgniteCache%|#2%DataStoreIgniteCache%][]
>  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=ttl-cleanup-worker, igniteInstanceName=DataStoreIgniteCache, 
> finished=false, heartbeatTs=1575271465044]]]class 
> org.apache.ignite.IgniteException: GridWorker [name=ttl-cleanup-worker, 
> igniteInstanceName=DataStoreIgniteCache, finished=false, 
> heartbeatTs=1575271465044] at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1831)
>  at 
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance$2.apply(IgnitionEx.java:1826)
>  at 
> org.apache.ignite.internal.worker.WorkersRegistry.onIdle(WorkersRegistry.java:233)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.onIdle(GridWorker.java:297) 
> at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.lambda$new$0(ServerImpl.java:2663)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorker.body(ServerImpl.java:7181)
>  at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$RingMessageWorker.body(ServerImpl.java:2700)
>  at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at 
> org.apache.ignite.spi.discovery.tcp.ServerImpl$MessageWorkerThread.body(ServerImpl.java:7119)
>  at org.apache.ignite.spi.IgniteSpiThread.run(IgniteSpiThread.java:62)
> {code}
>  



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