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https://issues.apache.org/jira/browse/CASSANDRA-20051?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17895506#comment-17895506
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Tibor Repasi commented on CASSANDRA-20051:
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When the {{nodetool reloadseeds}} command was invoked and finished with exit
status zero, it is expected that the seeds have been reloaded. There might be
exceptional conditions preventing that, but in that case the command must not
exit with status zero and a proper message should be issued.
The current behavior deviates from this expectation.
> nodetool reloadseeds does not reliably reload the seeds
> -------------------------------------------------------
>
> Key: CASSANDRA-20051
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20051
> Project: Cassandra
> Issue Type: Bug
> Components: Local/Config
> Reporter: Tibor Repasi
> Assignee: Stefan Miklosovic
> Priority: Normal
> Fix For: 4.1.x
>
>
> During re-deploying lots of Cassandra nodes I've observed that some nodes
> does not reliably reload the seeds when {{nodetool reloadseeds}} command was
> issued.
> After the seeds list was changed in the config:
> {code}
> $ grep seeds /etc/cassandra/cassandra.yaml
> - seeds: 10.90.44.82
> $ nodetool getseeds
> Current list of seed node IPs, excluding the current node's IP:
> /10.90.40.86:7000 /10.90.44.86:7000
> $ nodetool reloadseeds
> Updated seed node IP list, excluding the current node's IP: /10.90.40.86:7000
> /10.90.44.86:7000
> {code}
> At this instance the following line was logged to debug.log:
> {code}
> DEBUG [RMI TCP Connection(103568)-127.0.0.1] 2024-11-04 14:04:27,638
> YamlConfigurationLoader.java:124 - Loading settings from
> file:/etc/cassandra/cassandra.yaml
> {code}
> However, getting the old list:
> {code}
> $ nodetool getseeds
> Current list of seed node IPs, excluding the current node's IP:
> /10.90.40.86:7000 /10.90.44.86:7000
> {code}
> These nodes read the seed list only after Cassandra was restarted:
> {code}
> $ sudo systemctl restart cassandra.service
> $ nodetool getseeds
> Seed node list does not contain any remote node IPs
> {code}
> Note: this was observed on a seed node.
> Observed on Cassandra 4.1.7.
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