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https://issues.apache.org/jira/browse/IGNITE-21765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17833127#comment-17833127
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Igor Sapego commented on IGNITE-21765:
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Looks good to me.
> Java thin 3.0: DataStreamer partition awareness might break if assignment is
> not available at the moment
> --------------------------------------------------------------------------------------------------------
>
> Key: IGNITE-21765
> URL: https://issues.apache.org/jira/browse/IGNITE-21765
> Project: Ignite
> Issue Type: Bug
> Components: streaming, thin client
> Affects Versions: 3.0.0-beta1
> Reporter: Pavel Tupitsyn
> Assignee: Pavel Tupitsyn
> Priority: Major
> Labels: ignite-3
> Fix For: 3.0.0-beta2
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> * *ClientTable.getPartitionAssignment* might return an empty list
> * *AbstractClientStreamerPartitionAwarenessProvider* assumes that partition
> count can't change
> Therefore, if some server node lags behind and returns an empty assignment
> for a given timestamp, streamer partition awareness won't work at all.
> *Potential Fixes*
> * Wait for assignment on the server, do not return empty/null - might affect
> performance
> * Return correct partition count, but null values - faster and simpler
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