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https://issues.apache.org/jira/browse/IGNITE-12873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17083377#comment-17083377
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Alexey Goncharuk commented on IGNITE-12873:
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[~ktkale...@gridgain.com] I think that we need to handle the IP address
{{0.0.0.0}} and any loopback IP specifically and still send the hostname if
this particular IP is specified. Otherwise, other nodes will try to always
connect to the local host, not to a remote node.
> Hosts names resolution takes place even if all nodes are configured via ip
> addresses
> ------------------------------------------------------------------------------------
>
> Key: IGNITE-12873
> URL: https://issues.apache.org/jira/browse/IGNITE-12873
> Project: Ignite
> Issue Type: Improvement
> Reporter: Kirill Tkalenko
> Assignee: Kirill Tkalenko
> Priority: Major
> Fix For: 2.9
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> We got a problem: When connection with DNS was lost transactions processing
> hanged up. This happened because IgniteUtils.toSocketAddresses resolves
> hostName even if all nodes are configured via ip-addresses.
> {code:java}
> Thread [name=""utility-#432631%GRID%GridNodeName%"", id=992176,
> state=RUNNABLE, blockCnt=1, waitCnt=16]
> at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method)
> at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:929)
> at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1324)
> at java.net.InetAddress.getAllByName0(InetAddress.java:1277)
> at java.net.InetAddress.getAllByName(InetAddress.java:1193)
> at java.net.InetAddress.getAllByName(InetAddress.java:1127)
> at java.net.InetAddress.getByName(InetAddress.java:1077)
> at java.net.InetSocketAddress.<init>(InetSocketAddress.java:220)
> at o.a.i.i.util.IgniteUtils.toSocketAddresses(IgniteUtils.java:8982)
> at
> o.a.i.spi.communication.tcp.TcpCommunicationSpi.nodeAddresses(TcpCommunicationSpi.java:3228)
> at
> o.a.i.spi.communication.tcp.TcpCommunicationSpi.nodeAddresses(TcpCommunicationSpi.java:3200)
> at
> o.a.i.spi.communication.tcp.TcpCommunicationSpi.createTcpClient(TcpCommunicationSpi.java:3291)
> at
> o.a.i.spi.communication.tcp.TcpCommunicationSpi.createNioClient(TcpCommunicationSpi.java:3027)
> at
> o.a.i.spi.communication.tcp.TcpCommunicationSpi.reserveClient(TcpCommunicationSpi.java:2907)
> at
> o.a.i.spi.communication.tcp.TcpCommunicationSpi.sendMessage0(TcpCommunicationSpi.java:2750)
> at
> o.a.i.spi.communication.tcp.TcpCommunicationSpi.sendMessage(TcpCommunicationSpi.java:2709)
> at o.a.i.i.managers.communication.GridIoManager.send(GridIoManager.java:1643)
> at
> o.a.i.i.managers.communication.GridIoManager.sendOrderedMessage(GridIoManager.java:1863)
> at
> o.a.i.i.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1873)
> at
> o.a.i.i.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1844)
> at
> o.a.i.i.processors.continuous.GridContinuousProcessor.sendWithRetries(GridContinuousProcessor.java:1826)
> at
> o.a.i.i.processors.continuous.GridContinuousProcessor.sendNotification(GridContinuousProcessor.java:1244)
> at
> o.a.i.i.processors.continuous.GridContinuousProcessor.addNotification(GridContinuousProcessor.java:1181)
> at
> o.a.i.i.processors.cache.query.continuous.CacheContinuousQueryHandler.onEntryUpdate(CacheContinuousQueryHandler.java:882)
> at
> o.a.i.i.processors.cache.query.continuous.CacheContinuousQueryHandler.access$600(CacheContinuousQueryHandler.java:85)
> at
> o.a.i.i.processors.cache.query.continuous.CacheContinuousQueryHandler$2.onEntryUpdated(CacheContinuousQueryHandler.java:429)
> at
> o.a.i.i.processors.cache.query.continuous.CacheContinuousQueryManager.onEntryUpdated(CacheContinuousQueryManager.java:400)
> at
> o.a.i.i.processors.cache.GridCacheMapEntry.innerSet(GridCacheMapEntry.java:1111)
> at
> o.a.i.i.processors.cache.transactions.IgniteTxLocalAdapter.userCommit(IgniteTxLocalAdapter.java:659)
> at
> o.a.i.i.processors.cache.distributed.dht.GridDhtTxLocalAdapter.localFinish(GridDhtTxLocalAdapter.java:796)
> at
> o.a.i.i.processors.cache.distributed.dht.GridDhtTxLocal.localFinish(GridDhtTxLocal.java:603)
> at
> o.a.i.i.processors.cache.distributed.dht.GridDhtTxLocal.finishTx(GridDhtTxLocal.java:475)
> at
> o.a.i.i.processors.cache.distributed.dht.GridDhtTxLocal.commitDhtLocalAsync(GridDhtTxLocal.java:532)
> at
> o.a.i.i.processors.cache.transactions.IgniteTxHandler.finishDhtLocal(IgniteTxHandler.java:1017)
> at
> o.a.i.i.processors.cache.transactions.IgniteTxHandler.finish(IgniteTxHandler.java:896)
> at
> o.a.i.i.processors.cache.transactions.IgniteTxHandler.processNearTxFinishRequest(IgniteTxHandler.java:852)
> at
> o.a.i.i.processors.cache.transactions.IgniteTxHandler.access$200(IgniteTxHandler.java:102)
> at
> o.a.i.i.processors.cache.transactions.IgniteTxHandler$3.apply(IgniteTxHandler.java:196)
> at
> o.a.i.i.processors.cache.transactions.IgniteTxHandler$3.apply(IgniteTxHandler.java:194)
> at
> o.a.i.i.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:1077)
> at
> o.a.i.i.processors.cache.GridCacheIoManager.onMessage0(GridCacheIoManager.java:587)
> at
> o.a.i.i.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:386)
> at
> o.a.i.i.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:312)
> at
> o.a.i.i.processors.cache.GridCacheIoManager.access$100(GridCacheIoManager.java:102)
> at
> o.a.i.i.processors.cache.GridCacheIoManager$1.onMessage(GridCacheIoManager.java:301)
> at
> o.a.i.i.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1556)
> at
> o.a.i.i.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:1184)
> at
> o.a.i.i.managers.communication.GridIoManager.access$4200(GridIoManager.java:125)
> at
> o.a.i.i.managers.communication.GridIoManager$9.run(GridIoManager.java:1091)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {code}
> Solution:
> - Do not save hostname in node attributes, If localHost IP is set in the
> configuration
> - Add JVM option for enabling "old" behaviour.
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