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https://issues.apache.org/jira/browse/CASSANDRA-4227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Evans updated CASSANDRA-4227:
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Attachment: 4227_drop_hints.txt
> StorageProxy throws NPEs for when there's no hostids for a target
> -----------------------------------------------------------------
>
> Key: CASSANDRA-4227
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4227
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Dave Brosius
> Priority: Trivial
> Fix For: 1.2
>
> Attachments: 4227_drop_hints.txt,
> 4227_guard_against_npes_for_old_gossip_versions.diff
>
>
> On trunk...
> if there is no host id due to an old node, an info log is generated, but the
> code continues to use the null host id causing NPEs in decompose... Should
> this bypass this code, or perhaps can the plain ip address be used in this
> case? don't know.
> as follows...
> UUID hostId =
> StorageService.instance.getTokenMetadata().getHostId(target);
> if ((hostId == null) &&
> (Gossiper.instance.getVersion(target) < MessagingService.VERSION_12))
> logger.info("Unable to store hint for host with
> missing ID, {} (old node?)", target.toString());
> RowMutation hintedMutation =
> RowMutation.hintFor(mutation, ByteBuffer.wrap(UUIDGen.decompose(hostId)));
> hintedMutation.apply();
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