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Posted to issues@flink.apache.org by "Caizhi Weng (Jira)" <ji...@apache.org> on 2022/11/07 09:31:00 UTC
[jira] [Created] (FLINK-29916) Levels in Table Store may mistakenly ignore level 0 files when two files have the same sequence number
Caizhi Weng created FLINK-29916:
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Summary: Levels in Table Store may mistakenly ignore level 0 files when two files have the same sequence number
Key: FLINK-29916
URL: https://issues.apache.org/jira/browse/FLINK-29916
Project: Flink
Issue Type: Bug
Components: Table Store
Affects Versions: table-store-0.3.0, table-store-0.2.2
Reporter: Caizhi Weng
Fix For: table-store-0.3.0, table-store-0.2.2
Current constructor of {{Levels}} class contains the following code:
{code:java}
this.level0 = new TreeSet<>(Comparator.comparing(DataFileMeta::maxSequenceNumber).reversed());
{code}
However when two or more jobs writing the same bucket, they may produce files containing the same sequence number. If two files have the same {{maxSequenceNumber}}, one of them will be mistakenly ignored by {{TreeSet}}.
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