vinson0526 commented on a change in pull request #3186: Support convert Arrow
data to RowBatch asynchronously in Spark-Doris-Connector
URL: https://github.com/apache/incubator-doris/pull/3186#discussion_r397590368
##########
File path:
extension/spark-doris-connector/src/main/java/org/apache/doris/spark/serialization/RowBatch.java
##########
@@ -87,50 +88,39 @@ public RowBatch(TScanBatchResult nextResult, Schema
schema) throws DorisExceptio
new ByteArrayInputStream(nextResult.getRows()),
rootAllocator
);
+ this.offsetInRowBatch = 0;
try {
this.root = arrowStreamReader.getVectorSchemaRoot();
+ while (arrowStreamReader.loadNextBatch()) {
+ fieldVectors = root.getFieldVectors();
+ if (fieldVectors.size() != schema.size()) {
+ logger.error("Schema size '{}' is not equal to arrow field
size '{}'.",
+ fieldVectors.size(), schema.size());
+ throw new DorisException("Load Doris data failed, schema
size of fetch data is wrong.");
+ }
+ if (fieldVectors.size() == 0 || root.getRowCount() == 0) {
+ logger.debug("One batch in arrow has no data.");
+ continue;
+ }
+ rowCountInOneBatch = root.getRowCount();
+ // init the rowBatch
+ for (int i = 0; i < rowCountInOneBatch; ++i) {
+ rowBatch.add(new Row(fieldVectors.size()));
+ }
+ convertArrowToRowBatch();
+ readRowCount += root.getRowCount();
Review comment:
function close could be removed and move its content to finally, since read
all data from arrow here.
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