Steffen Moelter created SOLR-3791:
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Summary: SortedMapBackedCache.java throws NullPointerException
Key: SOLR-3791
URL: https://issues.apache.org/jira/browse/SOLR-3791
Project: Solr
Issue Type: Bug
Components: contrib - DataImportHandler
Affects Versions: 3.6.1
Environment: Debian
Reporter: Steffen Moelter
As datasource is a mysql via jdbc configured in the DIH. There are some sql
statements in entities, that delivers NULL values in some fields.
When this entities do have processor="CachedSqlEntityProcessor", a
NullPointerException will be thrown. I Tried it on different machines, with
different copies of the index.
e.g.:
<entity processor="CachedSqlEntityProcessor"
name="locator_ids"
query="
SELECT l1.id AS l1id, l2.id AS l2id, l3.id AS l3id, l4.id AS l4id,
l5.id AS l5id, l6.id AS l6id, l7.id AS l7id FROM locators l1
LEFT JOIN locators l2 ON l1.parent_id = l2.id
.... and so on delivers a result like:
+-------+------+------+------+------+------+------+
| l1id | l2id | l3id | l4id | l5id | l6id | l7id |
+-------+------+------+------+------+------+------+
| 21843 | 855 | 223 | 66 | 12 | 1 | NULL |
+-------+------+------+------+------+------+------+
The SortedMapBackedCache throws the NullPointer.
Staktrace:
java.lang.NullPointerException
at java.util.TreeMap.getEntry(TreeMap.java:341)
at java.util.TreeMap.get(TreeMap.java:272)
at
org.apache.solr.handler.dataimport.SortedMapBackedCache.add(SortedMapBackedCache.java:57)
at
org.apache.solr.handler.dataimport.DIHCacheSupport.populateCache(DIHCacheSupport.java:124)
at
org.apache.solr.handler.dataimport.DIHCacheSupport.getSimpleCacheData(DIHCacheSupport.java:199)
at
org.apache.solr.handler.dataimport.DIHCacheSupport.getCacheData(DIHCacheSupport.java:147)
at
org.apache.solr.handler.dataimport.EntityProcessorBase.getNext(EntityProcessorBase.java:132)
at
org.apache.solr.handler.dataimport.SqlEntityProcessor.nextRow(SqlEntityProcessor.java:75)
at
org.apache.solr.handler.dataimport.EntityProcessorWrapper.pullRow(EntityProcessorWrapper.java:330)
at
org.apache.solr.handler.dataimport.EntityProcessorWrapper.nextRow(EntityProcessorWrapper.java:296)
at
org.apache.solr.handler.dataimport.DocBuilder.buildDocument(DocBuilder.java:683)
I had to give an onError="continue" to the entity, in order to get the proper
stacktrace. Leaving out the onError property (default=Abort) suppresses the
stacktrace in EntityProcessorWrapper.java line 332
The DIH version 3.5.0 is not affected, works fine for me
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