[jira] [Created] (IOTDB-2509) [Merge] when write out of order data, data are different after merge.

["张洪胤 (Jira)" <ji...@apache.org>]

张洪胤 created IOTDB-2509:
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             Summary: [Merge] when write out of order data, data are different after merge.
                 Key: IOTDB-2509
                 URL: https://issues.apache.org/jira/browse/IOTDB-2509
             Project: Apache IoTDB
          Issue Type: Bug
          Components: Core/Server
            Reporter: 张洪胤
         Attachments: 12.5.csv, 13.0.csv, check-config.properties, image-2022-01-30-16-24-45-709.png, image-2022-01-30-16-29-41-688.png, image-2022-01-30-16-30-25-700.png, write-config.properties

First, we use double write mode benchmark to write out of order data into IoTDB 0.12.5 and IoTDB 0.13.0, related benchmark config: write-config.properties(please modify host).

then, we use double point check mode benchmark to check the data between them, related benchmark config:  check-config.properties.

And we find there are something wrong happen in benchmark log:

!image-2022-01-30-16-24-45-709.png!

After that, we try to find what's wrong of d_1 in this time, use `./export-csv.sh -h 127.0.0.1 -p 6667 -u root -pw root -td /home/xzh -q "select * from root.test.g_0.d_0 where time >= 1541390305000 and time < 1541390805000 order by time desc"` to export data. The data of IoTDB 0.12.5 is 12.5.csv, and the data of IoTDB 0.13.0 is 13.0.csv.

Then we compare them and find there are differences:

!image-2022-01-30-16-29-41-688.png!

!image-2022-01-30-16-30-25-700.png!

It looks like that some line in 0.12.5 has been splited into 2 line in 0.13.0.



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