Thank you for the quick response. First of wall ,none of the servers have a firewall. And all the ignite instances are run as root, on machines that I solely run for ignite. So I really don't understand How they can have any connection permission problems at all.
For now , I'll also provide the small java snippet I run for this test: IgniteConfiguration cfg = new IgniteConfiguration(); cfg.setClientMode(true); cfg.setPeerClassLoadingEnabled(true); cfg.setWorkDirectory("/tmp/"); TcpDiscoveryVmIpFinder ipFinder = new TcpDiscoveryVmIpFinder(); ipFinder.setAddresses(Arrays.asList("51.15.203.48","51.15.88.216")); cfg.setDiscoverySpi(new TcpDiscoverySpi().setLocalAddress("68.183.91.137").setIpFinder(ipFinder)); Ignite ignite=Ignition.start(cfg); On Tue, Aug 11, 2020 at 10:06 PM Evgenii Zhuravlev <e.zhuravlev...@gmail.com> wrote: > Hi, > > It looks like the node can't establish a connection using the > Communication channel to the remote node. I would recommend checking that > all ports are opened and there is no firewall. Also, you can check that > connection can be established using telnet or any other tool. If you're > sure, that connection can be established between these 2 nodes using the > communication port, please share full logs(not the console output) from all > nodes. > > Evgenii > > вт, 11 авг. 2020 г. в 10:14, Homer Kommrad <kommradho...@gmail.com>: > >> Hello , >> >> I have a cluster of 2 server nodes and I'm trying to connect them via a >> client node on another server. When I try to connect , my client node >> connects and I can see the topology changing , 1 Client up . But right >> after that , I keep getting the exception for socketTimeout . >> >> such is the log: >> >> Aug 11, 2020 5:03:47 PM java.util.logging.LogManager$RootLogger log >> WARNING: Failed to resolve default logging config file: >> config/java.util.logging.properties >> [17:03:48] __________ ________________ >> [17:03:48] / _/ ___/ |/ / _/_ __/ __/ >> [17:03:48] _/ // (7 7 // / / / / _/ >> [17:03:48] /___/\___/_/|_/___/ /_/ /___/ >> [17:03:48] >> [17:03:48] ver. 2.8.1#20200521-sha1:86422096 >> [17:03:48] 2020 Copyright(C) Apache Software Foundation >> [17:03:48] >> [17:03:48] Ignite documentation: http://ignite.apache.org >> [17:03:48] >> [17:03:48] Quiet mode. >> [17:03:48] ^-- Logging by 'JavaLogger [quiet=true, config=null]' >> [17:03:48] ^-- To see **FULL** console log here add >> -DIGNITE_QUIET=false or "-v" to ignite.{sh|bat} >> [17:03:48] >> [17:03:48] OS: Linux 4.15.0-112-generic amd64 >> [17:03:48] VM information: OpenJDK Runtime Environment >> 1.8.0_265-8u265-b01-0ubuntu2~18.04-b01 Private Build OpenJDK 64-Bit Server >> VM 25.265-b01 >> [17:03:48] Please set system property '-Djava.net.preferIPv4Stack=true' >> to avoid possible problems in mixed environments. >> [17:03:48] Initial heap size is 16MB (should be no less than 512MB, use >> -Xms512m -Xmx512m). >> [17:03:48] Configured plugins: >> [17:03:48] ^-- None >> [17:03:48] >> [17:03:48] Configured failure handler: [hnd=StopNodeOrHaltFailureHandler >> [tryStop=false, timeout=0, super=AbstractFailureHandler >> [ignoredFailureTypes=UnmodifiableSet [SYSTEM_WORKER_BLOCKED, SYSTEM_CRITIC >> AL_OPERATION_TIMEOUT]]]] >> [17:03:49] Message queue limit is set to 0 which may lead to potential >> OOMEs when running cache operations in FULL_ASYNC or PRIMARY_SYNC modes due >> to message queues growth on sender and receiver sides. >> [17:03:49] Security status [authentication=off, tls/ssl=off] >> [17:03:50] REST protocols do not start on client node. To start the >> protocols on client node set '-DIGNITE_REST_START_ON_CLIENT=true' system >> property. >> [17:03:52] Nodes started on local machine require more than 80% of >> physical RAM what can lead to significant slowdown due to swapping (please >> decrease JVM heap size, data region size or checkpoint buffer >> size) [required=239MB, available=985MB] >> Aug 11, 2020 5:04:02 PM org.apache.ignite.logger.java.JavaLogger error >> SEVERE: Failed to send message to remote node [node=TcpDiscoveryNode >> [id=7899fe2d-bd77-4077-8cce-a0550f1cab62, consistentId=22222222222222, >> addrs=ArrayList [0:0:0:0:0:0:0:1%lo, 10.69.44.105, 127.0.0.1, 2 >> 001:bc8:628:1634:0:0:0:1%ens2], sockAddrs=HashSet [/10.69.44.105:47500, >> /0:0:0:0:0:0:0:1%lo:47500, /127.0.0.1:47500, >> 2001:bc8:628:1634:0:0:0:1%ens2:47500], discPort=47500, order=116, >> intOrder=59, lastExc >> hangeTime=1597165431145, loc=false, ver=2.8.1#20200521-sha1:86422096, >> isClient=false], msg=GridIoMessage [plc=2, topic=TOPIC_CACHE, topicOrd=8, >> ordered=false, timeout=0, skipOnTimeout=false, msg=GridDhtP >> artitionsSingleMessage [parts=null, partCntrs=null, partsSizes=null, >> partHistCntrs=null, err=null, client=true, exchangeStartTime=4152061099919, >> finishMsg=null, super=GridDhtPartitionsAbstractMessage [ex >> chId=GridDhtPartitionExchangeId [topVer=AffinityTopologyVersion >> [topVer=201, minorTopVer=0], discoEvt=DiscoveryEvent >> [evtNode=TcpDiscoveryNode [id=5aa5cfc5-8722-4e2f-bddf-35af5df73808, >> consistentId=5aa5c >> fc5-8722-4e2f-bddf-35af5df73808, addrs=ArrayList [68.183.91.137], >> sockAddrs=HashSet [/68.183.91.137:0], discPort=0, order=201, intOrder=0, >> lastExchangeTime=1597165430185, loc=true, ver=2.8.1#20200521-sha >> 1:86422096, isClient=true], topVer=201, nodeId8=5aa5cfc5, msg=null, >> type=NODE_JOINED, tstamp=1597165432178], nodeId=5aa5cfc5, evt=NODE_JOINED], >> lastVer=GridCacheVersion [topVer=0, order=1597165429407, no >> deOrder=0], super=GridCacheMessage [msgId=1, depInfo=null, >> lastAffChangedTopVer=AffinityTopologyVersion [topVer=-1, minorTopVer=0], >> err=null, skipPrepare=false]]]]] >> class org.apache.ignite.IgniteCheckedException: Failed to connect to node >> (is node still alive?). Make sure that each ComputeTask and cache >> Transaction has a timeout set in order to prevent parties from >> waiting forever in case of network issues >> [nodeId=7899fe2d-bd77-4077-8cce-a0550f1cab62, addrs=[/10.69.44.105:47100, >> /0:0:0:0:0:0:0:1%lo:47100, /127.0.0.1:47100, >> 2001:bc8:628:1634:0:0:0:1%ens2:47100]] >> at >> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createNioSession(TcpCommunicationSpi.java:3738) >> >> at >> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:3458) >> >> at >> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createCommunicationClient(TcpCommunicationSpi.java:3198) >> >> at >> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.reserveClient(TcpCommunicationSpi.java:3078) >> >> at >> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage0(TcpCommunicationSpi.java:2918) >> >> at >> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.sendMessage(TcpCommunicationSpi.java:2877) >> >> at >> org.apache.ignite.internal.managers.communication.GridIoManager.send(GridIoManager.java:2035) >> >> at >> org.apache.ignite.internal.managers.communication.GridIoManager.sendToGridTopic(GridIoManager.java:2132) >> >> at >> org.apache.ignite.internal.processors.cache.GridCacheIoManager.send(GridCacheIoManager.java:1257) >> >> at >> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.sendLocalPartitions(GridDhtPartitionsExchangeFuture.java:2020) >> >> at >> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.clientOnlyExchange(GridDhtPartitionsExchangeFuture.java:1436) >> >> at >> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture.init(GridDhtPartitionsExchangeFuture.java:903) >> >> at >> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body0(GridCachePartitionExchangeManager.java:3214) >> >> at >> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:3063) >> >> at >> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) >> at java.lang.Thread.run(Thread.java:748) >> Caused by: java.net.SocketTimeoutException >> at sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:129) >> at >> org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createNioSession(TcpCommunicationSpi.java:3584) >> >> ... 15 more >> >> >>