aishikbh commented on code in PR #12220:
URL: https://github.com/apache/pinot/pull/12220#discussion_r1452475077
##########
pinot-core/src/main/java/org/apache/pinot/core/segment/processing/mapper/SegmentMapper.java:
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@@ -107,62 +106,62 @@ public SegmentMapper(List<RecordReaderFileConfig>
recordReaderFileConfigs,
LOGGER.info("Initialized mapper with {} record readers, output dir: {},
timeHandler: {}, partitioners: {}",
_recordReaderFileConfigs.size(), _mapperOutputDir,
_timeHandler.getClass(),
Arrays.stream(_partitioners).map(p ->
p.getClass().toString()).collect(Collectors.joining(",")));
+
+ // initialize adaptive writer.
+ _adaptiveSizeBasedWriter =
+ new
AdaptiveSizeBasedWriter(processorConfig.getSegmentConfig().getIntermediateFileSizeThreshold());
}
/**
* Reads the input records and generates partitioned generic row files into
the mapper output directory.
* Records for each partition are put into a directory of the partition name
within the mapper output directory.
*/
- public Map<String, GenericRowFileManager> map()
+ public Map<String, GenericRowFileManager> map(int totalRecordReaderSize)
Review Comment:
for optimisation purposes we are working only on the sublist of the original
list of RecordReaderFileConfigs in `SegmentMapper`. So we infer the overall
index of the current recordrecorder being processed using the global total
count for log purposes.
Saw comments about logs so consolidating the response here :D
We need to pass the global count somehow or else we will lose the
granularity of logging data. The other option is to do it in
`SegmentprocessorFramework`, but in that case we will have sparse logging i.e.
we will only have logs when we terminate the mapper phase. Should we use a
different way to pass the total count? or should the logging in
`SegmentProcessorFramework` be enough? What do you suggest?
Just as a reference, here is how the logging looks currently on the UI (will
be similar in debug logs as well.)
<img width="706" alt="Screenshot 2024-01-11 at 11 40 32 PM"
src="https://github.com/apache/pinot/assets/15700987/5c2109d8-8d84-4195-aa7c-13cdb04520a9";>
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