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https://issues.apache.org/jira/browse/SOLR-9917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15796277#comment-15796277
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Markus Jelsma commented on SOLR-9917:
-------------------------------------
I only have access to the code right now, here's the SolrJ code causing it:
vars:
logHistory is just the number of days we look back in the history;
percentile is, well, the percentile, it is set to 90th percentile
{code}
SolrQuery query = new SolrQuery("{!term f=document}" + document);
query.setRows(0);
query.addFilterQuery("{!term f=type}view");
query.addFilterQuery("time:[NOW-" + logHistory + "DAY/DAY TO
NOW+1DAY/DAY]");
query.setParam("json.facet", "{period:{type:range,field:time,start:\"NOW-"
+ logHistory + "DAY/DAY\",end:\"NOW+1DAY/DAY\",gap:\"+" + logHistory +
"DAY\",facet:{time_percentiles:\"percentile(view_time," + percentile +
")\"}}}");
QueryResponse response = client.query(query);
{code}
Let me know if you need more information.
> NPE in JSON facet merger
> ------------------------
>
> Key: SOLR-9917
> URL: https://issues.apache.org/jira/browse/SOLR-9917
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Affects Versions: 6.3
> Reporter: Markus Jelsma
> Assignee: Yonik Seeley
> Fix For: master (7.0), 6.4
>
> Attachments: SOLR-9917.patch
>
>
> I've spotted this before, and just now one of my unit tests does it as well.
> I believe this happens when there is no data for the requested field.
> {code}
> java.lang.NullPointerException
> at java.nio.ByteBuffer.wrap(ByteBuffer.java:396)
> at
> org.apache.solr.search.facet.PercentileAgg$Merger.merge(PercentileAgg.java:195)
> at
> org.apache.solr.search.facet.FacetBucket.mergeBucket(FacetBucket.java:90)
> at
> org.apache.solr.search.facet.FacetRequestSortedMerger.mergeBucketList(FacetRequestSortedMerger.java:61)
> at
> org.apache.solr.search.facet.FacetRangeMerger.mergeBucketList(FacetRangeMerger.java:27)
> at
> org.apache.solr.search.facet.FacetRangeMerger.merge(FacetRangeMerger.java:91)
> at
> org.apache.solr.search.facet.FacetRangeMerger.merge(FacetRangeMerger.java:43)
> at
> org.apache.solr.search.facet.FacetBucket.mergeBucket(FacetBucket.java:90)
> at
> org.apache.solr.search.facet.FacetQueryMerger.merge(FacetModule.java:444)
> at
> org.apache.solr.search.facet.FacetModule.handleResponses(FacetModule.java:272)
> {code}
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