ajantha-bhat commented on a change in pull request #3907:
URL: https://github.com/apache/carbondata/pull/3907#discussion_r481175661
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File path:
core/src/main/java/org/apache/carbondata/core/index/IndexStoreManager.java
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@@ -515,15 +516,16 @@ public TableSegmentRefresher
getTableSegmentRefresher(CarbonTable table) {
UpdateVO updateVO =
SegmentUpdateStatusManager.getInvalidTimestampRange(segment.getLoadMetadataDetails());
SegmentRefreshInfo segmentRefreshInfo;
- if ((updateVO != null && updateVO.getLatestUpdateTimestamp() != null)
- || segment.getSegmentFileName() != null) {
- long segmentFileTimeStamp;
+ if (updateVO.getLatestUpdateTimestamp() != null ||
segment.getSegmentFileName() != null) {
+ long segmentFileTimeStamp = 0L;
if (null != segment.getLoadMetadataDetails()) {
segmentFileTimeStamp =
segment.getLoadMetadataDetails().getLastModifiedTime();
} else {
- segmentFileTimeStamp = FileFactory.getCarbonFile(CarbonTablePath
- .getSegmentFilePath(table.getTablePath(),
segment.getSegmentFileName()))
- .getLastModifiedTime();
+ CarbonFile segmentFile = FileFactory.getCarbonFile(CarbonTablePath
+ .getSegmentFilePath(table.getTablePath(),
segment.getSegmentFileName()));
+ if (segmentFile.exists()) {
Review comment:
1) If segment object exist and segment fileName is not null, then that
means segment was there. If somebody deletes the segment file manually. Then
better to throw an exception instead of initializing to 0 ?
2) when the segment.getLoadMetadataDetails() will be empty ?
3) now in positive case also we check file exist ? in object storage file
exist check can be costly.
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