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https://issues.apache.org/jira/browse/SOLR-9077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15623381#comment-15623381
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Joel Bernstein commented on SOLR-9077:
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ParallelStream should be fine as it's just a bag of worker nodes. We may not
want to support aliases for the FeatureSelectionStream, TextLogitStream and
TopicStream. In particular the TopicStream relies on checkpoints which are
specific to a physical collection. The FeatureSelectionStream and
TextLogitStream probably don't need to support alias and may just complicate
things.
> Streaming expressions should support collection alias
> -----------------------------------------------------
>
> Key: SOLR-9077
> URL: https://issues.apache.org/jira/browse/SOLR-9077
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 5.5.1
> Reporter: Suds
> Priority: Minor
> Attachments: SOLR-9077.patch, SOLR-9077.patch, SOLR-9077.patch,
> SOLR-9077.patch
>
>
> Streaming expression in solr does not support collection alias
> when I tried to access collection alias I get null pointer exception
> issue seems to be related to following code , clusterState.getActiveSlices
> returns null
> Collection<Slice> slices = clusterState.getActiveSlices(this.collection);
> for(Slice slice : slices) {
> }
> fix seems to fairly simple , clusterState.getActiveSlices can be made aware
> of collection alias. I am not sure what will happen when we have large alias
> which has hundred of slices.
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