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https://issues.apache.org/jira/browse/HUDI-6120?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ethan Guo updated HUDI-6120:
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Fix Version/s: 0.14.0
> fetchAllLogsMergedFileSlice will read basefile which it does not expect
> -----------------------------------------------------------------------
>
> Key: HUDI-6120
> URL: https://issues.apache.org/jira/browse/HUDI-6120
> Project: Apache Hudi
> Issue Type: Improvement
> Reporter: Jianhui Dong
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.14.0
>
>
> Check the code snippet of
> org.apache.hudi.common.table.view.AbstractTableFileSystemView#fetchAllLogsMergedFileSlice:
> {code:java}
> private Option<FileSlice> fetchAllLogsMergedFileSlice(HoodieFileGroup
> fileGroup, String maxInstantTime) {
> List<FileSlice> fileSlices =
> fileGroup.getAllFileSlicesBeforeOn(maxInstantTime).collect(Collectors.toList());
> if (fileSlices.size() == 0) {
> return Option.empty();
> }
> if (fileSlices.size() == 1) {
> return Option.of(fileSlices.get(0));
> }
> final FileSlice latestSlice = fileSlices.get(0);
> FileSlice merged = new FileSlice(latestSlice.getPartitionPath(),
> latestSlice.getBaseInstantTime(),
> latestSlice.getFileId());
> // add log files from the latest slice to the earliest
> fileSlices.forEach(slice ->
> slice.getLogFiles().forEach(merged::addLogFile));
> return Option.of(merged);
> }{code}
> if we only fetch one file slice, we will return the file slice with basefile,
> and then hudi-flink will create a SkipMergeIterator/MergeIterator which both
> reads basefile and logfiles for the split.
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