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Posted to dev@iotdb.apache.org by "Jialin Qiao (Jira)" <ji...@apache.org> on 2020/01/03 07:24:00 UTC

[jira] [Closed] (IOTDB-389) Parallel Raw data query

     [ https://issues.apache.org/jira/browse/IOTDB-389?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jialin Qiao closed IOTDB-389.
-----------------------------
    Resolution: Fixed

> Parallel Raw data query
> -----------------------
>
>                 Key: IOTDB-389
>                 URL: https://issues.apache.org/jira/browse/IOTDB-389
>             Project: Apache IoTDB
>          Issue Type: Improvement
>            Reporter: Jialin Qiao
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> Currently, IoTDB executes a query in a single thread, which could be accelerated by multi-thread.
> We could apply the producer-consumer module and the changes could be made in the NewEngineDataSetWithoutValueFilter.
> A potential solution: Add a queue that buffers a predefined number of BatchDatas for each time series. Once a BatchData is consumed, a thread put a new BatchData of this time series into the queue. The degree of parallelism could be configured or adjusted dynamically.



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