On 9/5/2018 8:32 PM, deniz wrote:
I have set up a schemaless solr (cloud) and have been trying to test the
updates. as DIH is not going through field guessing, I have wrote a small
piece of code to query data from db and push the docs to solr...
Once the client pushes the docs to solr, on server there are npe logs as
below:
o.a.s.h.RequestHandlerBase java.lang.NullPointerException
at
org.apache.solr.update.processor.AddSchemaFieldsUpdateProcessorFactory$AddSchemaFieldsUpdateProcessor.mapValueClassesToFieldType(AddSchemaFieldsUpdateProcessorFactory.java:509)
Your client-side log indicated the SolrJ version, but you did not say
which version of Solr you're running on the server.
If the server version is also 7.4.0, then my examination of the source
code will be accurate. It seems that when the
AddSchemaFieldsUpdateProcessorFactory class is looping through the
fields that it found in the input document, one of them is the java
'null' value instead of an instance of the SolrInputField class. Thus
when the code tries to call the "getValues()" method (line 509) on the
field object, Java throws NullPointerException.
I do not know what could result in a null value like that, or whether
SolrInputDocument needs some kind of safety check to make sure a null
SolrInputField is not possible.
If the server version isn't 7.4.0, then I cannot be 100 percent certain
about what's happening, because the code could be different in that version.
Thanks,
Shawn
