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DatasourceInputSplit: Serialize with write instead of writeUTF. #4195

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Merged
fjy merged 1 commit into from
Apr 25, 2017
Merged

DatasourceInputSplit: Serialize with write instead of writeUTF. #4195

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9 changes: 7 additions & 2 deletions indexing-hadoop/src/main/java/io/druid/indexer/hadoop/DatasourceInputSplit.java
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Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,9 @@ public List<WindowedDataSegment> getSegments()
@Override
public void write(DataOutput out) throws IOException
{
out.writeUTF(HadoopDruidIndexerConfig.JSON_MAPPER.writeValueAsString(segments));
final byte[] segmentsBytes = HadoopDruidIndexerConfig.JSON_MAPPER.writeValueAsBytes(segments);
out.writeInt(segmentsBytes.length);
out.write(segmentsBytes);
out.writeInt(locations.length);
for (String location : locations) {
out.writeUTF(location);
Expand All @@ -84,8 +86,11 @@ public void write(DataOutput out) throws IOException
@Override
public void readFields(DataInput in) throws IOException
{
final int segmentsBytesLength = in.readInt();
final byte[] buf = new byte[segmentsBytesLength];
in.readFully(buf);
segments = HadoopDruidIndexerConfig.JSON_MAPPER.readValue(
in.readUTF(),
buf,
new TypeReference<List<WindowedDataSegment>>()
{
}
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