[ 
https://issues.apache.org/jira/browse/IGNITE-4003?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Stanislav Lukyanov updated IGNITE-4003:
---------------------------------------
    Description: 
*Dec 2020 Update* Inverse communication establishment 
(https://issues.apache.org/jira/browse/IGNITE-12438) fixes the issue as it is 
was initially described - the case when a client is not reachable from a server 
works now. This ticket became about asynchronous communication establishment - 
that would still be a valuable improvement, so we should keep the ticket open.

-----

Steps to reproduce:
1) Start two server nodes and some data to cache.
2) Start a client from Docker subnet, which is not visible from the outside. 
Client will join the cluster.
3) Try to put something to cache or start another node to force rabalance.

Cluster is stuck at this moment. Root cause - servers are constantly trying to 
establish outgoing connection to the client, but fail as Docker subnet is not 
visible from the outside. It may stop virtually all cluster operations.

Typical thread dump:

{code}
org.apache.ignite.IgniteCheckedException: Failed to send message (node may have 
left the grid or TCP connection cannot be established due to firewall issues) 
[node=TcpDiscoveryNode [id=a15d74c2-1ec2-4349-9640-aeacd70d8714, 
addrs=[127.0.0.1, 172.17.0.6], sockAddrs=[/127.0.0.1:0, /127.0.0.1:0, 
/172.17.0.6:0], discPort=0, order=7241, intOrder=3707, 
lastExchangeTime=1474096941045, loc=false, ver=1.5.23#20160526-sha1:259146da, 
isClient=true], topic=T4 [topic=TOPIC_CACHE, 
id1=949732fd-1360-3a58-8d9e-0ff6ea6182cc, 
id2=a15d74c2-1ec2-4349-9640-aeacd70d8714, id3=2], msg=GridContinuousMessage 
[type=MSG_EVT_NOTIFICATION, routineId=7e13c48e-6933-48b2-9f15-8d92007930db, 
data=null, futId=null], policy=2]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.send(GridIoManager.java:1129)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.sendOrderedMessage(GridIoManager.java:1347)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1227)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1198)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1180)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendNotification(GridContinuousProcessor.java:841)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.addNotification(GridContinuousProcessor.java:800)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler.onEntryUpdate(CacheContinuousQueryHandler.java:787)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler.access$700(CacheContinuousQueryHandler.java:91)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler$1.onEntryUpdated(CacheContinuousQueryHandler.java:412)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryManager.onEntryUpdated(CacheContinuousQueryManager.java:343)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryManager.onEntryUpdated(CacheContinuousQueryManager.java:250)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheMapEntry.initialValue(GridCacheMapEntry.java:3476)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtForceKeysFuture$MiniFuture.onResult(GridDhtForceKeysFuture.java:548)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtForceKeysFuture.onResult(GridDhtForceKeysFuture.java:207)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader.processForceKeyResponse(GridDhtPreloader.java:636)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader.access$1000(GridDhtPreloader.java:81)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader$3.onMessage(GridDhtPreloader.java:202)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader$3.onMessage(GridDhtPreloader.java:200)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader$MessageHandler.apply(GridDhtPreloader.java:877)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader$MessageHandler.apply(GridDhtPreloader.java:859)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:582)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheIoManager.onMessage0(GridCacheIoManager.java:280)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:204)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheIoManager.access$000(GridCacheIoManager.java:80)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheIoManager$1.onMessage(GridCacheIoManager.java:163)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1058)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:836)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.access$1700(GridIoManager.java:104)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager$5.run(GridIoManager.java:799)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
[na:1.8.0_51]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
[na:1.8.0_51]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_51]
Caused by: org.apache.ignite.spi.IgniteSpiException: Failed to send message to 
remote node: TcpDiscoveryNode [id=a15d74c2-1ec2-4349-9640-aeacd70d8714, 
addrs=[127.0.0.1, 172.17.0.6], sockAddrs=[/127.0.0.1:0, /127.0.0.1:0, 
/172.17.0.6:0], discPort=0, order=7241, intOrder=3707, 
lastExchangeTime=1474096941045, loc=false, ver=1.5.23#20160526-sha1:259146da, 
isClient=true]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage0(TcpCommunicationSpi.java:1986)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage(TcpCommunicationSpi.java:1926)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.send(GridIoManager.java:1124)
 [ignite-core-1.5.23.jar:1.5.23]
        ... 32 common frames omitted
Caused by: org.apache.ignite.IgniteCheckedException: Failed to connect to node 
(is node still alive?). Make sure that each GridComputeTask and 
GridCacheTransaction has a timeout set in order to prevent parties from waiting 
forever in case of network issues [nodeId=a15d74c2-1ec2-4349-9640-aeacd70d8714, 
addrs=[/172.17.0.6:47100, /127.0.0.1:47100]]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2489)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createNioClient(TcpCommunicationSpi.java:2130)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.reserveClient(TcpCommunicationSpi.java:2024)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage0(TcpCommunicationSpi.java:1960)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage(TcpCommunicationSpi.java:1926)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.send(GridIoManager.java:1124)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.sendOrderedMessage(GridIoManager.java:1347)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1227)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1198)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1180)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendNotification(GridContinuousProcessor.java:841)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.addNotification(GridContinuousProcessor.java:800)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler.onEntryUpdate(CacheContinuousQueryHandler.java:787)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler.access$700(CacheContinuousQueryHandler.java:91)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler$1.onEntryUpdated(CacheContinuousQueryHandler.java:412)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryManager.onEntryUpdated(CacheContinuousQueryManager.java:343)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryManager.onEntryUpdated(CacheContinuousQueryManager.java:250)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheMapEntry.initialValue(GridCacheMapEntry.java:3476)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtLockFuture$MiniFuture.onResult(GridDhtLockFuture.java:1213)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtLockFuture.onResult(GridDhtLockFuture.java:529)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter.processDhtLockResponse(GridDhtTransactionalCacheAdapter.java:639)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter.access$100(GridDhtTransactionalCacheAdapter.java:89)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter$5.apply(GridDhtTransactionalCacheAdapter.java:151)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter$5.apply(GridDhtTransactionalCacheAdapter.java:149)
 ~[ignite-core-1.5.23.jar:1.5.23]
        ... 12 common frames omitted
        Suppressed: org.apache.ignite.IgniteCheckedException: Failed to connect 
to address: /172.17.0.6:47100
                at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2494)
 ~[ignite-core-1.5.23.jar:1.5.23]
                ... 35 common frames omitted
        Caused by: java.net.SocketTimeoutException: null
                at sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:118)
                at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2353)
                ... 35 common frames omitted
        Suppressed: org.apache.ignite.IgniteCheckedException: Failed to connect 
to address: /127.0.0.1:47100
                at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2494)
 ~[ignite-core-1.5.23.jar:1.5.23]
                ... 35 common frames omitted
        Caused by: org.apache.ignite.IgniteCheckedException: Remote node ID is 
not as expected [expected=a15d74c2-1ec2-4349-9640-aeacd70d8714, 
rcvd=48cccf25-7c29-4048-bd52-704acdb552e6]
                at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.safeHandshake(TcpCommunicationSpi.java:2604)
                at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2361)
                ... 35 common frames omitted
{code}

  was:
Steps to reproduce:
1) Start two server nodes and some data to cache.
2) Start a client from Docker subnet, which is not visible from the outside. 
Client will join the cluster.
3) Try to put something to cache or start another node to force rabalance.

Cluster is stuck at this moment. Root cause - servers are constantly trying to 
establish outgoing connection to the client, but fail as Docker subnet is not 
visible from the outside. It may stop virtually all cluster operations.

Typical thread dump:

{code}
org.apache.ignite.IgniteCheckedException: Failed to send message (node may have 
left the grid or TCP connection cannot be established due to firewall issues) 
[node=TcpDiscoveryNode [id=a15d74c2-1ec2-4349-9640-aeacd70d8714, 
addrs=[127.0.0.1, 172.17.0.6], sockAddrs=[/127.0.0.1:0, /127.0.0.1:0, 
/172.17.0.6:0], discPort=0, order=7241, intOrder=3707, 
lastExchangeTime=1474096941045, loc=false, ver=1.5.23#20160526-sha1:259146da, 
isClient=true], topic=T4 [topic=TOPIC_CACHE, 
id1=949732fd-1360-3a58-8d9e-0ff6ea6182cc, 
id2=a15d74c2-1ec2-4349-9640-aeacd70d8714, id3=2], msg=GridContinuousMessage 
[type=MSG_EVT_NOTIFICATION, routineId=7e13c48e-6933-48b2-9f15-8d92007930db, 
data=null, futId=null], policy=2]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.send(GridIoManager.java:1129)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.sendOrderedMessage(GridIoManager.java:1347)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1227)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1198)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1180)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendNotification(GridContinuousProcessor.java:841)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.addNotification(GridContinuousProcessor.java:800)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler.onEntryUpdate(CacheContinuousQueryHandler.java:787)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler.access$700(CacheContinuousQueryHandler.java:91)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler$1.onEntryUpdated(CacheContinuousQueryHandler.java:412)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryManager.onEntryUpdated(CacheContinuousQueryManager.java:343)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryManager.onEntryUpdated(CacheContinuousQueryManager.java:250)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheMapEntry.initialValue(GridCacheMapEntry.java:3476)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtForceKeysFuture$MiniFuture.onResult(GridDhtForceKeysFuture.java:548)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtForceKeysFuture.onResult(GridDhtForceKeysFuture.java:207)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader.processForceKeyResponse(GridDhtPreloader.java:636)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader.access$1000(GridDhtPreloader.java:81)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader$3.onMessage(GridDhtPreloader.java:202)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader$3.onMessage(GridDhtPreloader.java:200)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader$MessageHandler.apply(GridDhtPreloader.java:877)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader$MessageHandler.apply(GridDhtPreloader.java:859)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:582)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheIoManager.onMessage0(GridCacheIoManager.java:280)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:204)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheIoManager.access$000(GridCacheIoManager.java:80)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheIoManager$1.onMessage(GridCacheIoManager.java:163)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1058)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:836)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.access$1700(GridIoManager.java:104)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager$5.run(GridIoManager.java:799)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
[na:1.8.0_51]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
[na:1.8.0_51]
        at java.lang.Thread.run(Thread.java:745) [na:1.8.0_51]
Caused by: org.apache.ignite.spi.IgniteSpiException: Failed to send message to 
remote node: TcpDiscoveryNode [id=a15d74c2-1ec2-4349-9640-aeacd70d8714, 
addrs=[127.0.0.1, 172.17.0.6], sockAddrs=[/127.0.0.1:0, /127.0.0.1:0, 
/172.17.0.6:0], discPort=0, order=7241, intOrder=3707, 
lastExchangeTime=1474096941045, loc=false, ver=1.5.23#20160526-sha1:259146da, 
isClient=true]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage0(TcpCommunicationSpi.java:1986)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage(TcpCommunicationSpi.java:1926)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.send(GridIoManager.java:1124)
 [ignite-core-1.5.23.jar:1.5.23]
        ... 32 common frames omitted
Caused by: org.apache.ignite.IgniteCheckedException: Failed to connect to node 
(is node still alive?). Make sure that each GridComputeTask and 
GridCacheTransaction has a timeout set in order to prevent parties from waiting 
forever in case of network issues [nodeId=a15d74c2-1ec2-4349-9640-aeacd70d8714, 
addrs=[/172.17.0.6:47100, /127.0.0.1:47100]]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2489)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createNioClient(TcpCommunicationSpi.java:2130)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.reserveClient(TcpCommunicationSpi.java:2024)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage0(TcpCommunicationSpi.java:1960)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage(TcpCommunicationSpi.java:1926)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.send(GridIoManager.java:1124)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.managers.communication.GridIoManager.sendOrderedMessage(GridIoManager.java:1347)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1227)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1198)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1180)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendNotification(GridContinuousProcessor.java:841)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.addNotification(GridContinuousProcessor.java:800)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler.onEntryUpdate(CacheContinuousQueryHandler.java:787)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler.access$700(CacheContinuousQueryHandler.java:91)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler$1.onEntryUpdated(CacheContinuousQueryHandler.java:412)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryManager.onEntryUpdated(CacheContinuousQueryManager.java:343)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryManager.onEntryUpdated(CacheContinuousQueryManager.java:250)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.GridCacheMapEntry.initialValue(GridCacheMapEntry.java:3476)
 [ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtLockFuture$MiniFuture.onResult(GridDhtLockFuture.java:1213)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtLockFuture.onResult(GridDhtLockFuture.java:529)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter.processDhtLockResponse(GridDhtTransactionalCacheAdapter.java:639)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter.access$100(GridDhtTransactionalCacheAdapter.java:89)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter$5.apply(GridDhtTransactionalCacheAdapter.java:151)
 ~[ignite-core-1.5.23.jar:1.5.23]
        at 
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter$5.apply(GridDhtTransactionalCacheAdapter.java:149)
 ~[ignite-core-1.5.23.jar:1.5.23]
        ... 12 common frames omitted
        Suppressed: org.apache.ignite.IgniteCheckedException: Failed to connect 
to address: /172.17.0.6:47100
                at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2494)
 ~[ignite-core-1.5.23.jar:1.5.23]
                ... 35 common frames omitted
        Caused by: java.net.SocketTimeoutException: null
                at sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:118)
                at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2353)
                ... 35 common frames omitted
        Suppressed: org.apache.ignite.IgniteCheckedException: Failed to connect 
to address: /127.0.0.1:47100
                at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2494)
 ~[ignite-core-1.5.23.jar:1.5.23]
                ... 35 common frames omitted
        Caused by: org.apache.ignite.IgniteCheckedException: Remote node ID is 
not as expected [expected=a15d74c2-1ec2-4349-9640-aeacd70d8714, 
rcvd=48cccf25-7c29-4048-bd52-704acdb552e6]
                at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.safeHandshake(TcpCommunicationSpi.java:2604)
                at 
org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2361)
                ... 35 common frames omitted
{code}


> Slow or faulty client can stall the whole cluster.
> --------------------------------------------------
>
>                 Key: IGNITE-4003
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4003
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache, general
>    Affects Versions: 1.7
>            Reporter: Vladimir Ozerov
>            Assignee: Igor Seliverstov
>            Priority: Critical
>
> *Dec 2020 Update* Inverse communication establishment 
> (https://issues.apache.org/jira/browse/IGNITE-12438) fixes the issue as it is 
> was initially described - the case when a client is not reachable from a 
> server works now. This ticket became about asynchronous communication 
> establishment - that would still be a valuable improvement, so we should keep 
> the ticket open.
> -----
> Steps to reproduce:
> 1) Start two server nodes and some data to cache.
> 2) Start a client from Docker subnet, which is not visible from the outside. 
> Client will join the cluster.
> 3) Try to put something to cache or start another node to force rabalance.
> Cluster is stuck at this moment. Root cause - servers are constantly trying 
> to establish outgoing connection to the client, but fail as Docker subnet is 
> not visible from the outside. It may stop virtually all cluster operations.
> Typical thread dump:
> {code}
> org.apache.ignite.IgniteCheckedException: Failed to send message (node may 
> have left the grid or TCP connection cannot be established due to firewall 
> issues) [node=TcpDiscoveryNode [id=a15d74c2-1ec2-4349-9640-aeacd70d8714, 
> addrs=[127.0.0.1, 172.17.0.6], sockAddrs=[/127.0.0.1:0, /127.0.0.1:0, 
> /172.17.0.6:0], discPort=0, order=7241, intOrder=3707, 
> lastExchangeTime=1474096941045, loc=false, ver=1.5.23#20160526-sha1:259146da, 
> isClient=true], topic=T4 [topic=TOPIC_CACHE, 
> id1=949732fd-1360-3a58-8d9e-0ff6ea6182cc, 
> id2=a15d74c2-1ec2-4349-9640-aeacd70d8714, id3=2], msg=GridContinuousMessage 
> [type=MSG_EVT_NOTIFICATION, routineId=7e13c48e-6933-48b2-9f15-8d92007930db, 
> data=null, futId=null], policy=2]
>       at 
> org.apache.ignite.internal.managers.communication.GridIoManager.send(GridIoManager.java:1129)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.managers.communication.GridIoManager.sendOrderedMessage(GridIoManager.java:1347)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1227)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1198)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1180)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendNotification(GridContinuousProcessor.java:841)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.addNotification(GridContinuousProcessor.java:800)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler.onEntryUpdate(CacheContinuousQueryHandler.java:787)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler.access$700(CacheContinuousQueryHandler.java:91)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler$1.onEntryUpdated(CacheContinuousQueryHandler.java:412)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryManager.onEntryUpdated(CacheContinuousQueryManager.java:343)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryManager.onEntryUpdated(CacheContinuousQueryManager.java:250)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.GridCacheMapEntry.initialValue(GridCacheMapEntry.java:3476)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtForceKeysFuture$MiniFuture.onResult(GridDhtForceKeysFuture.java:548)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtForceKeysFuture.onResult(GridDhtForceKeysFuture.java:207)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader.processForceKeyResponse(GridDhtPreloader.java:636)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader.access$1000(GridDhtPreloader.java:81)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader$3.onMessage(GridDhtPreloader.java:202)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader$3.onMessage(GridDhtPreloader.java:200)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader$MessageHandler.apply(GridDhtPreloader.java:877)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader$MessageHandler.apply(GridDhtPreloader.java:859)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:582)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.onMessage0(GridCacheIoManager.java:280)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:204)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.access$000(GridCacheIoManager.java:80)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.GridCacheIoManager$1.onMessage(GridCacheIoManager.java:163)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1058)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:836)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.managers.communication.GridIoManager.access$1700(GridIoManager.java:104)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.managers.communication.GridIoManager$5.run(GridIoManager.java:799)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>  [na:1.8.0_51]
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>  [na:1.8.0_51]
>       at java.lang.Thread.run(Thread.java:745) [na:1.8.0_51]
> Caused by: org.apache.ignite.spi.IgniteSpiException: Failed to send message 
> to remote node: TcpDiscoveryNode [id=a15d74c2-1ec2-4349-9640-aeacd70d8714, 
> addrs=[127.0.0.1, 172.17.0.6], sockAddrs=[/127.0.0.1:0, /127.0.0.1:0, 
> /172.17.0.6:0], discPort=0, order=7241, intOrder=3707, 
> lastExchangeTime=1474096941045, loc=false, ver=1.5.23#20160526-sha1:259146da, 
> isClient=true]
>       at 
> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage0(TcpCommunicationSpi.java:1986)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage(TcpCommunicationSpi.java:1926)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.managers.communication.GridIoManager.send(GridIoManager.java:1124)
>  [ignite-core-1.5.23.jar:1.5.23]
>       ... 32 common frames omitted
> Caused by: org.apache.ignite.IgniteCheckedException: Failed to connect to 
> node (is node still alive?). Make sure that each GridComputeTask and 
> GridCacheTransaction has a timeout set in order to prevent parties from 
> waiting forever in case of network issues 
> [nodeId=a15d74c2-1ec2-4349-9640-aeacd70d8714, addrs=[/172.17.0.6:47100, 
> /127.0.0.1:47100]]
>       at 
> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2489)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createNioClient(TcpCommunicationSpi.java:2130)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.reserveClient(TcpCommunicationSpi.java:2024)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage0(TcpCommunicationSpi.java:1960)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage(TcpCommunicationSpi.java:1926)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.managers.communication.GridIoManager.send(GridIoManager.java:1124)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.managers.communication.GridIoManager.sendOrderedMessage(GridIoManager.java:1347)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1227)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1198)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1180)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.sendNotification(GridContinuousProcessor.java:841)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.continuous.GridContinuousProcessor.addNotification(GridContinuousProcessor.java:800)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler.onEntryUpdate(CacheContinuousQueryHandler.java:787)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler.access$700(CacheContinuousQueryHandler.java:91)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryHandler$1.onEntryUpdated(CacheContinuousQueryHandler.java:412)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryManager.onEntryUpdated(CacheContinuousQueryManager.java:343)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryManager.onEntryUpdated(CacheContinuousQueryManager.java:250)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.GridCacheMapEntry.initialValue(GridCacheMapEntry.java:3476)
>  [ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtLockFuture$MiniFuture.onResult(GridDhtLockFuture.java:1213)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtLockFuture.onResult(GridDhtLockFuture.java:529)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter.processDhtLockResponse(GridDhtTransactionalCacheAdapter.java:639)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter.access$100(GridDhtTransactionalCacheAdapter.java:89)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter$5.apply(GridDhtTransactionalCacheAdapter.java:151)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       at 
> org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter$5.apply(GridDhtTransactionalCacheAdapter.java:149)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>       ... 12 common frames omitted
>       Suppressed: org.apache.ignite.IgniteCheckedException: Failed to connect 
> to address: /172.17.0.6:47100
>               at 
> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2494)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>               ... 35 common frames omitted
>       Caused by: java.net.SocketTimeoutException: null
>               at sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:118)
>               at 
> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2353)
>               ... 35 common frames omitted
>       Suppressed: org.apache.ignite.IgniteCheckedException: Failed to connect 
> to address: /127.0.0.1:47100
>               at 
> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2494)
>  ~[ignite-core-1.5.23.jar:1.5.23]
>               ... 35 common frames omitted
>       Caused by: org.apache.ignite.IgniteCheckedException: Remote node ID is 
> not as expected [expected=a15d74c2-1ec2-4349-9640-aeacd70d8714, 
> rcvd=48cccf25-7c29-4048-bd52-704acdb552e6]
>               at 
> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.safeHandshake(TcpCommunicationSpi.java:2604)
>               at 
> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:2361)
>               ... 35 common frames omitted
> {code}



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