Decipher Solr error messages

Fred Dushin fred at
Sat Jul 1 10:30:14 EDT 2017

My guess is that you have data that is either not UTF-8 encoded or is failing to decode into a JSON payload (peeking quickly at the mochi_json code, there are a lot of case statements, as you would expect in a parser).

There is a call to error logging on line 165 in Riak 2.2.2, so I assume you are on that version of Riak?


> On Jun 28, 2017, at 9:11 AM, Mark Richard Thomas <mark.thomas at> wrote:
> Hello
> I'm seeing a number of Solr related issues in my error.log:
> 2017-06-28 06:02:58.520 [error] <0.2094.0>@yz_doc:extract_fields:165 An exception occurred extracting fields from value with reason {case_clause,<<200,162,171,163,243,217,229,228,195,79,125,154,98,147,163,118,199,52,170,154,85,31,29,208>>}. Value: <<200,162,171,163,243,217,229,228,195,79,125,154,98,147,163,118,199,52,170,154,85,31,29,208>>
> 2017-06-28 06:02:58.520 [error] <0.2094.0>@yz_solrq_helper:single_op_batch:342 Updating a single Solr operation failed for index <<"disqual">> with bad request.
> 2017-06-28 06:03:34.191 [error] <0.2103.0>@yz_doc:extract_fields:165 An exception occurred extracting fields from value with reason invalid_utf8. Value: <<"{ \"company\"...........
> I think these fall under 2 categories: an issue with the 'disqual' index and 'invalid_utf8'.
> Any ideas on identifying where the issues occur?
> Thanks
> Mark
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