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https://issues.apache.org/jira/browse/CASSANDRA-16156?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Alex Petrov updated CASSANDRA-16156:
------------------------------------
Test and Documentation Plan: Test included into [CASSANDRA-15935], can find
it
[here|https://github.com/apache/cassandra/blob/27470d38f57695a766d8efd27a90be6f779ed625/test/distributed/org/apache/cassandra/distributed/test/BootstrapTest.java#L154-L191].
Status: Patch Available (was: Open)
|[patch|https://github.com/apache/cassandra/pull/774]|[ci|https://app.circleci.com/pipelines/github/ifesdjeen/cassandra?branch=16156-gossip-with-unreachable-nodes]|
> Decomissioned nodes are picked for gossip when unreachable nodes are
> considered for gossiping
> ----------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-16156
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16156
> Project: Cassandra
> Issue Type: Bug
> Components: Cluster/Gossip
> Reporter: Alex Petrov
> Assignee: Alex Petrov
> Priority: Normal
>
> After node is decommissioned, it is still considered for gossip via
> “unreachable” nodes, which results into following exceptions:
>
> {code}
> INFO [node4_Messaging-EventLoop-3-3] node4 2020-09-29 16:37:37,527
> NoSpamLogger.java:91 -
> /127.0.0.4:7012->/127.0.0.1:7012-URGENT_MESSAGES-[no-channel] failed to
> connect
> io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection
> refused: /127.0.0.1:7012
> Caused by: java.net.ConnectException: Connection refused
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
> at
> io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330)
> at
> io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334)
> at
> io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:702)
> at
> io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:650)
> at
> io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:576)
> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
> at
> io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
> at
> io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
> at
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.lang.Thread.run(Thread.java:748)
> {code}
> Trace of the method that attempts to establish connection:
> {code}
> org.apache.cassandra.net.MessagingService.getOutbound(MessagingService.java:492)
> at
> org.apache.cassandra.net.MessagingService.doSend(MessagingService.java:335)
> at
> org.apache.cassandra.net.OutboundSink$Filtered.accept(OutboundSink.java:55)
> at org.apache.cassandra.net.OutboundSink.accept(OutboundSink.java:70)
> at
> org.apache.cassandra.net.MessagingService.send(MessagingService.java:327)
> at
> org.apache.cassandra.net.MessagingService.send(MessagingService.java:314)
> at org.apache.cassandra.gms.Gossiper.sendGossip(Gossiper.java:813)
> at
> org.apache.cassandra.gms.Gossiper.maybeGossipToUnreachableMember(Gossiper.java:840)
> at org.apache.cassandra.gms.Gossiper.access$400(Gossiper.java:86)
> {code}
> LEFT and other nodes that are considered dead should not be picked for gossip
> with unreachable nodes.
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