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Caching Avro Binary encoder/decoder to avoid creating new one for every record

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This commit is contained in:
Nishith Agarwal
2019-05-05 21:26:16 -07:00
committed by vinoth chandar
parent ee1feb7c75
commit a33a55fcb5
1 changed files with 9 additions and 3 deletions
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12
hoodie-common/src/main/java/com/uber/hoodie/common/table/log/block/HoodieAvroDataBlock.java
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@@ -37,6 +37,8 @@ import org.apache.avro.Schema;
import org.apache.avro.generic.GenericDatumReader;
import org.apache.avro.generic.GenericDatumWriter;
import org.apache.avro.generic.IndexedRecord;
import org.apache.avro.io.BinaryDecoder;
import org.apache.avro.io.BinaryEncoder;
import org.apache.avro.io.Decoder;
import org.apache.avro.io.DecoderFactory;
import org.apache.avro.io.Encoder;
@@ -52,6 +54,8 @@ public class HoodieAvroDataBlock extends HoodieLogBlock {
private List<IndexedRecord> records;
private Schema schema;
private ThreadLocal<BinaryEncoder> encoderCache = new ThreadLocal<>();
private ThreadLocal<BinaryDecoder> decoderCache = new ThreadLocal<>();
public HoodieAvroDataBlock(@Nonnull List<IndexedRecord> records,
@Nonnull Map<HeaderMetadataType, String> header,
@@ -118,7 +122,8 @@ public class HoodieAvroDataBlock extends HoodieLogBlock {
while (itr.hasNext()) {
IndexedRecord s = itr.next();
ByteArrayOutputStream temp = new ByteArrayOutputStream();
Encoder encoder = EncoderFactory.get().binaryEncoder(temp, null);
BinaryEncoder encoder = EncoderFactory.get().binaryEncoder(temp, encoderCache.get());
encoderCache.set(encoder);
try {
// Encode the record into bytes
writer.write(s, encoder);
@@ -201,8 +206,9 @@ public class HoodieAvroDataBlock extends HoodieLogBlock {
// 3. Read the content
for (int i = 0; i < totalRecords; i++) {
int recordLength = dis.readInt();
Decoder decoder = DecoderFactory.get()
.binaryDecoder(getContent().get(), dis.getNumberOfBytesRead(), recordLength, null);
BinaryDecoder decoder = DecoderFactory.get()
.binaryDecoder(getContent().get(), dis.getNumberOfBytesRead(), recordLength, decoderCache.get());
decoderCache.set(decoder);
IndexedRecord record = reader.read(null, decoder);
records.add(record);
dis.skipBytes(recordLength);