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Posted to dev@iotdb.apache.org by "Jialin Qiao (Jira)" <ji...@apache.org> on 2019/10/30 11:41:00 UTC
[jira] [Created] (IOTDB-284) Do not write empty page
Jialin Qiao created IOTDB-284:
---------------------------------
Summary: Do not write empty page
Key: IOTDB-284
URL: https://issues.apache.org/jira/browse/IOTDB-284
Project: Apache IoTDB
Issue Type: Improvement
Reporter: Jialin Qiao
SET STORAGE GROUP TO root.turbine;
CREATE TIMESERIES root.turbine.d2.s0 WITH DATATYPE=INT32, ENCODING=RLE;
insert into root.turbine.d2(timestamp,s0) values(2,25.3);
flush
When receiving the insert statement, IoTDB will create a ChunkWriterImpl, but the value will not be inserted because of type error.
The empty ChunkWriterImpl will be written when meeting the 'flush' command. Then, the server will log an error:
19:33:24.667 [pool-6-IoTDB-Flush-SubTask-ServerServiceImpl-thread-2] ERROR org.apache.iotdb.tsfile.write.chunk.ChunkBuffer - Write page error, [s0,INT32,RLE,{},UNCOMPRESSED], minTime:-9223372036854775808, maxTime:0
We can check the data type before creating the ChunkWriterImpl to avoid write empty ChunkWriterImpl.
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Re: [jira] [Created] (IOTDB-284) Do not write empty page
Posted by Jialin Qiao <qj...@mails.tsinghua.edu.cn>.
Hi,
I fixed this issue in this PR[1]. I put the "check value type" before constructing a ChunkWriter in AbstractMemtable.
[1] https://github.com/apache/incubator-iotdb/pull/491
Best,
--
Jialin Qiao
School of Software, Tsinghua University
乔嘉林
清华大学 软件学院
> -----原始邮件-----
> 发件人: "Jialin Qiao (Jira)" <ji...@apache.org>
> 发送时间: 2019-10-30 19:41:00 (星期三)
> 收件人: dev@iotdb.apache.org
> 抄送:
> 主题: [jira] [Created] (IOTDB-284) Do not write empty page
>
> Jialin Qiao created IOTDB-284:
> ---------------------------------
>
> Summary: Do not write empty page
> Key: IOTDB-284
> URL: https://issues.apache.org/jira/browse/IOTDB-284
> Project: Apache IoTDB
> Issue Type: Improvement
> Reporter: Jialin Qiao
>
>
> SET STORAGE GROUP TO root.turbine;
>
> CREATE TIMESERIES root.turbine.d2.s0 WITH DATATYPE=INT32, ENCODING=RLE;
>
> insert into root.turbine.d2(timestamp,s0) values(2,25.3);
>
> flush
>
>
>
> When receiving the insert statement, IoTDB will create a ChunkWriterImpl, but the value will not be inserted because of type error.
>
> The empty ChunkWriterImpl will be written when meeting the 'flush' command. Then, the server will log an error:
>
>
>
> 19:33:24.667 [pool-6-IoTDB-Flush-SubTask-ServerServiceImpl-thread-2] ERROR org.apache.iotdb.tsfile.write.chunk.ChunkBuffer - Write page error, [s0,INT32,RLE,{},UNCOMPRESSED], minTime:-9223372036854775808, maxTime:0
>
>
>
> We can check the data type before creating the ChunkWriterImpl to avoid write empty ChunkWriterImpl.
>
>
>
> --
> This message was sent by Atlassian Jira
> (v8.3.4#803005)