[jira] [Created] (IOTDB-6172) Query with limit clause will leave some tasks in blockedQueue

["liaolanyu (Jira)" <ji...@apache.org>]

liaolanyu created IOTDB-6172:
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             Summary: Query with limit clause will leave some tasks in blockedQueue
                 Key: IOTDB-6172
                 URL: https://issues.apache.org/jira/browse/IOTDB-6172
             Project: Apache IoTDB
          Issue Type: Bug
            Reporter: liaolanyu
            Assignee: liaolanyu
         Attachments: image-2023-09-26-17-43-26-115.png

How to reproduce:

      1. set the query_timeout_threshold to 10min.

      2. Use benchmark to generate data. 100 devices, each with 500 timeseries is enough.

      3. Run query: "show timeseries root.** limit 100"

      4. In grafana/DataNode DashBoard/QueryRelated Resource/DriverScheduler, the block_queue_task_count should be greater than 0. After 1 min, it still remains greater than 0.

!image-2023-09-26-17-43-26-115.png!

After fixing: the block_queue_task_count should be eqaul to 0 in several seconds.

 



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