Hi, I'm trying to build a simple document search core with SolrCloud. I've run into an issue when trying to partially update doucments. (aka atomic updates) It appears to be a bug, because the semantically same request succeeds in XML format, while it fails as JSON.
The body of the XML request: <add><doc><field name="id">test1</field><field name="title" update="set">Solr Rocks</field></doc></add> The body of the JSON request: {"id":"test1","title":{"set":"Solr Rocks"}} I'm using the requests library in Python3 to send the update request. Sending the XML request with the following code works as expected: r = requests.post(' http://localhost:8983/v2/c/testnode/update/xml?commit=true', headers={'Content-type': 'application/xml'}, data=xml) Sending the JSON request with the following codes return with a SolrException: r = requests.post(' http://localhost:8983/v2/c/testnode/update/json?commit=true', headers={'Content-type': 'application/json'}, data=json) r = requests.post(' http://localhost:8983/solr/testnode/update/json/docs?commit=true', headers={'Content-type': 'application/json'}, data=json) Using the same lines of code to send a JSON request that is not an atomic update works as expected. Such JSON request body is like: {"id":"test1","title":"Solr Rocks"} The error message in the response is: ERROR: [doc=test1] unknown field 'title.set' Here is the log of the exception: https://pastebin.com/raw/VJe5hR25 Depending on which API I send the request to, the logs are identical except on line 27 and 28: This is with v2: at org.apache.solr.handler.UpdateRequestHandlerApi$1.call(UpdateRequestHandlerApi.java:48) at org.apache.solr.api.V2HttpCall.execute(V2HttpCall.java:325) and this is with the other: at org.apache.solr.core.SolrCore.execute(SolrCore.java:2503) at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:711) I'm using Solr 7.3.1 and I believe I do everything according to the documentation. ( https://lucene.apache.org/solr/guide/7_3/updating-parts-of-documents.html#atomic-updates ) The solrconfig.xml and managed-schema files are fairly simple, they have code snippets from the examples mostly: https://pastebin.com/199JJkp0 https://pastebin.com/Dp1YK46k This could be a bug, or I can't fathom what I'm missing. Can anyone help me out? Thanks, Nandor