Hi Solr users:I encountered the following error when indexing MongoDB data by using Solr DataImportHandler:org.apache.solr.common.SolrException: TransactionLog doesn't know how to serialize class org.bson.types.ObjectId; try implementing ObjectResolver?Is there any fix or workaround for this issue? I am using solr 7.3.1 and mongoDB 3.6.5. =======Here is the source code===========https://github.com/apache/lucene-solr/blob/master/solr/core/src/java/org/apache/solr/update/TransactionLog.java// write a BytesRef as a byte array static final JavaBinCodec.ObjectResolver resolver = new JavaBinCodec.ObjectResolver() { @Override public Object resolve(Object o, JavaBinCodec codec) throws IOException { if (o instanceof BytesRef) { BytesRef br = (BytesRef)o; codec.writeByteArray(br.bytes, br.offset, br.length); return null; } // Fallback: we have no idea how to serialize this. Be noisy to prevent insidious bugs throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, "TransactionLog doesn't know how to serialize " + o.getClass() + "; try implementing ObjectResolver?"); } };
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