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https://issues.apache.org/jira/browse/CASSANDRA-17945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17612697#comment-17612697
]
Andy Tolbert commented on CASSANDRA-17945:
------------------------------------------
Pull Request: https://github.com/apache/cassandra/pull/1895
> StorageService.getNativeaddress does not account for IPv6 addresses in the
> case NATIVE_ADDRESS_AND_PORT is not present in gossip state for an endpoint
> ------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-17945
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17945
> Project: Cassandra
> Issue Type: Improvement
> Components: Cluster/Gossip
> Reporter: Andy Tolbert
> Assignee: Andy Tolbert
> Priority: Normal
>
> While upgrading a cluster using IPv6 addresses from 3.0 to 4.0 I noticed the
> following in logs for upgraded nodes when processing down events for 3.0
> nodes that are going down as part of an upgrade:
>
> {noformat}
> 2022-09-28 20:18:48,244 ERROR [GossipStage:1]
> org.apache.cassandra.transport.Server - Problem retrieving RPC address for
> /[0:0:0:0:0:0:0:d9]:7000
> java.net.UnknownHostException: 0:0:0:0:0:0:0:d9:9042: invalid IPv6 address
> at java.net.InetAddress.getAllByName(InetAddress.java:1355) ~[?:?]
> at java.net.InetAddress.getAllByName(InetAddress.java:1306) ~[?:?]
> at java.net.InetAddress.getByName(InetAddress.java:1256) ~[?:?]
> at
> org.apache.cassandra.locator.InetAddressAndPort.getByNameOverrideDefaults(InetAddressAndPort.java:227)
>
> at
> org.apache.cassandra.locator.InetAddressAndPort.getByName(InetAddressAndPort.java:212)
>
> at
> org.apache.cassandra.transport.Server$EventNotifier.getNativeAddress(Server.java:377)
>
> at
> org.apache.cassandra.transport.Server$EventNotifier.onDown(Server.java:438)
> at
> org.apache.cassandra.service.StorageService.notifyDown(StorageService.java:2651)
>
> at
> org.apache.cassandra.service.StorageService.onDead(StorageService.java:3516)
> at org.apache.cassandra.gms.Gossiper.markDead(Gossiper.java:1347)
> at org.apache.cassandra.gms.Gossiper.markAsShutdown(Gossiper.java:590)
> at
> org.apache.cassandra.gms.GossipShutdownVerbHandler.doVerb(GossipShutdownVerbHandler.java:39)
>
> at org.apache.cassandra.net.InboundSink.lambda$new$0(InboundSink.java:78)
> at org.apache.cassandra.net.InboundSink.accept(InboundSink.java:97)
> at org.apache.cassandra.net.InboundSink.accept(InboundSink.java:45)
> at
> org.apache.cassandra.net.InboundMessageHandler$ProcessMessage.run(InboundMessageHandler.java:433)
>
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
> [?:?]
> at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> [?:?]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> [?:?]
> at
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> [netty-all-4.1.58.Final.jar:4.1.58.Final]
> at java.lang.Thread.run(Thread.java:829) [?:?]{noformat}
> It appears that StorageService.getNativeaddress does not account for the fact
> that an endpoint may be an IPv6 address, which required brackets when
> specified with a port:
>
> [https://github.com/apache/cassandra/blob/cassandra-4.0.6/src/java/org/apache/cassandra/service/StorageService.java#L1978-L1981]
>
>
> {code:java}
> /**
> * Return the native address associated with an endpoint as a string.
> * @param endpoint The endpoint to get rpc address for
> * @return the native address
> */
> public String getNativeaddress(InetAddressAndPort endpoint, boolean
> withPort)
> {
> if (endpoint.equals(FBUtilities.getBroadcastAddressAndPort()))
> return
> FBUtilities.getBroadcastNativeAddressAndPort().getHostAddress(withPort);
> else if
> (Gossiper.instance.getEndpointStateForEndpoint(endpoint).getApplicationState(ApplicationState.NATIVE_ADDRESS_AND_PORT)
> != null)
> {
> try
> {
> InetAddressAndPort address =
> InetAddressAndPort.getByName(Gossiper.instance.getEndpointStateForEndpoint(endpoint).getApplicationState(ApplicationState.NATIVE_ADDRESS_AND_PORT).value);
> return address.getHostAddress(withPort);
> }
> catch (UnknownHostException e)
> {
> throw new RuntimeException(e);
> }
> }
> else if
> (Gossiper.instance.getEndpointStateForEndpoint(endpoint).getApplicationState(ApplicationState.RPC_ADDRESS)
> == null)
> return endpoint.address.getHostAddress() + ":" +
> DatabaseDescriptor.getNativeTransportPort();
> else
> return
> Gossiper.instance.getEndpointStateForEndpoint(endpoint).getApplicationState(ApplicationState.RPC_ADDRESS).value
> + ":" + DatabaseDescriptor.getNativeTransportPort();
> }{code}
> In the two final else cases, the endpoint address and port are delimited with
> a colon. For IPv6 addresses this creates an invalid address
> (0:0:0:0:0:0:0:d9:9042), IPv6 addresses must be enclosed in brackets (e.g.
> [0:0:0:0:0:0:0:d9]:9042) per
> [https://datatracker.ietf.org/doc/html/rfc2732#section-2]
> Once a cluster is fully upgraded to 4.0, this error no longer occurs as all
> endpoints will have NATIVE_ADDRESS_AND_PORT in their gossip state. This only
> appears to be an issue during a mixed version case, and the impact of this
> seems low (4.0 nodes miss on down events for 3.0 nodes).
> I'll have a proposed PR for this up shortly.
>
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