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Posted to reviews@iotdb.apache.org by GitBox <gi...@apache.org> on 2020/08/17 06:39:20 UTC

[GitHub] [incubator-iotdb] samperson1997 commented on pull request #1624: [IOTDB-836] [To rel/0.10] Fix merging statistics failed when endFile

samperson1997 commented on pull request #1624:
URL: https://github.com/apache/incubator-iotdb/pull/1624#issuecomment-674691204


   > Consider one more scenario: restart and close file.
   > 
   > If the file has flushed an INT32 ChunkMetadata and a FLOAT ChunkMetadata and IoTDB is down when closing the file. When restart, the RestorableTsFileIOWriter will read the two ChunkMetadatas and try to merge them.
   > Therefore, the mods file should be checked when performing recover.
   
   Fixed. I noticed that there is no data type recorded in mod file and the version is not comparable, so that I get the current correct data type from MManager and delete the old wrong one in RestorableTsFileIOWriter.


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