Github user manishgupta88 commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/978#discussion_r119785140
--- Diff:
processing/src/main/java/org/apache/carbondata/processing/store/CarbonFactDataHandlerColumnar.java
---
@@ -488,13 +488,19 @@ private NodeHolder processDataRows(List
dataRows)
public void finish() throws CarbonDataWriterException {
// still some data is present in stores if entryCount is more
// than 0
-producerExecutorServiceTaskList.add(producerExecutorService
-.submit(new Producer(blockletDataHolder, dataRows,
++writerTaskSequenceCounter, true)));
-blockletProcessingCount.incrementAndGet();
-processedDataCount += entryCount;
-closeWriterExecutionService(producerExecutorService);
-processWriteTaskSubmitList(producerExecutorServiceTaskList);
-processingComplete = true;
+try {
+ semaphore.acquire();
--- End diff --
@watermen .here a check is required for entryCount > 0.because we
need to acquire a semaphore lock only if total number of rows in raw data are
not exactly divisible by page size...in this case only we will have some extra
rows to be process by finish method else addDataToStore method will handle all
the rowsPlease refer the below code snippet
public void finish() throws CarbonDataWriterException {
// still some data is present in stores if entryCount is more
// than 0
if (this.entryCount > 0) {
try {
semaphore.acquire();
producerExecutorServiceTaskList.add(producerExecutorService
.submit(new Producer(blockletDataHolder, dataRows,
++writerTaskSequenceCounter, true)));
blockletProcessingCount.incrementAndGet();
processedDataCount += entryCount;
} catch (InterruptedException e) {
LOGGER.error(e, e.getMessage());
throw new CarbonDataWriterException(e.getMessage(), e);
}
}
closeWriterExecutionService(producerExecutorService);
processWriteTaskSubmitList(producerExecutorServiceTaskList);
processingComplete = true;
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