Skip to content

[fix](paimon)support readbatch #29039

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
morningman merged 1 commit into from
Dec 27, 2023
Merged

[fix](paimon)support readbatch #29039

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
16 changes: 12 additions & 4 deletions ...ava-extensions/paimon-scanner/src/main/java/org/apache/doris/paimon/PaimonJniScanner.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,7 @@ public class PaimonJniScanner extends JniScanner {
private long dbId;
private long tblId;
private long lastUpdateTime;
private RecordReader.RecordIterator<InternalRow> recordIterator = null;

public PaimonJniScanner(int batchSize, Map<String, String> params) {
LOG.debug("params:{}", params);
Expand Down Expand Up @@ -133,18 +134,25 @@ public void close() throws IOException {
protected int getNext() throws IOException {
int rows = 0;
try {
RecordReader.RecordIterator<InternalRow> batch;
while ((batch = reader.readBatch()) != null) {
if (recordIterator == null) {
recordIterator = reader.readBatch();
}

while (recordIterator != null) {
InternalRow record;
while ((record = batch.next()) != null) {
while ((record = recordIterator.next()) != null) {
columnValue.setOffsetRow(record);
for (int i = 0; i < fields.length; i++) {
columnValue.setIdx(i, types[i]);
appendData(i, columnValue);
}
rows++;
if (rows >= batchSize) {
return rows;
Copy link
Contributor

@DongLiang-0 DongLiang-0 Dec 26, 2023

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Is there some logical problem here? After returning here, the following recordIterator.releaseBatch(); will not be executed.
Can it be handled in finally?

Copy link
Contributor Author

@wuwenchi wuwenchi Dec 26, 2023

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

This iterator hasn't been read yet, so it can't be released. Wait for the next time it is called until the read is complete.

}
}
batch.releaseBatch();
recordIterator.releaseBatch();
recordIterator = reader.readBatch();
}
} catch (IOException e) {
LOG.warn("failed to getNext columnValue ", e);
Expand Down