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Posted to dev@iotdb.apache.org by Dawei Liu <at...@163.com> on 2020/03/20 14:03:32 UTC
[ANNOUNCE] IoTDB Weekly News (2020-03-13~20200320)
Hi all,
Very, very happy as the first speaker to share with you IoTDB news of the week.
Share content contains new contributors, work items, distributed progress,
hope to show what we are doing, and attract people who are interested.
Have a good weekend.
[Weekly announcements]
1.The new version of the IOTDB website is under construction, you can preview it by clicking here(https://rhh.666love.cn/ <https://rhh.666love.cn/>),
and then reply directly to the mailing list [1] or leave your idea in jira[2].
[1] [DISUCSS] a new IoTDB website
[2] https://issues.apache.org/jira/browse/IOTDB-521 <https://issues.apache.org/jira/browse/IOTDB-521>
[New contributors this week] In no particular order, welcome all of you
1. SailVR
2. VenkatDatta
3. zzy9424
4. zhanglingzhe0820
[Distributed version progress]
1. support group by query
2. support fill query
3. support some metadata query(timeseries, device)
4. Log persistence in raft is basicly implemented
5. Log catch up in raft is simply implemented without boundary check
6. configuration check when node joins
[Progress of this week]
[Work in progress]
1. #919 switch timeGenerate to use TimeColumn
2. #917 optimize memtable for reduce unseq data
3. #910 add system design eng files
4. #902 calcite integration
5. #857 parallel aggregation query
6. #855 new tsfile
7. #854 group by fill
8. #852 add merge design doc
9. #777 rest api support
[Bugs to be fixed]
Cheers, no bugs found so far
[Finished work]
1. #928 add write process error code
2. #926 avoid flushing empty memtable
3. #925 update merge recover
4. #915 fix tsfile write flow diagram doc
5. #914 add insertInBatch for V0.9
6. #913 same struce both timeColumn and batchdata
7. #909 add start-up checks
8. #908 #880 add a simple connection pool for session api
9. #906 add text support for grafana
10. #901 pre-merge distributed some code into master
[Bugs that have been fixed]
1. #927 fix recover deadlock
2. #924 tsfile test bug
3. #922 static test bug
4. #921 deleting sg and initing from mlog
5. #920 empty chunkmetadata in last query gives wrong answer
6. #918 add duplicated metadata
7. #916 execute flush command while inserting
8. #907 fix unit test for merge
9. #905 timegenerator cache bug
Thanks
---
Dawei Liu
Re: [ANNOUNCE] IoTDB Weekly News (2020-03-13~20200320)
Posted by 孙泽嵩 <sz...@mails.tsinghua.edu.cn>.
Hi Dawei,
Thanks for your news! It’s really clear and crystal.
Looking forward to a better community! Have a nice weekend : )
Best,
-----------------------------------
Zesong Sun
School of Software, Tsinghua University
孙泽嵩
清华大学 软件学院
> 2020年3月20日 23:15，Dawei Liu <at...@163.com> 写道：
>
> Hi，
>
> Thank you very much. Hope we can build a better IoTDB community together .
>
>
> Thanks
> ---
> Dawei Liu
>
>
>
>> 2020年3月20日 下午10:38，Julian Feinauer <j....@pragmaticminds.de> 写道：
>>
>> Awesome, very well done Dawei!
>>
>> J
>>
>> Am 20.03.20, 15:06 schrieb "Dawei Liu" <at...@163.com>:
>>
>> Hi 大家好,
>>
>> 非常非常开心作为第一个分享 IoTDB 社区周报的人。
>>
>> 正文内容包含本周新贡献者、工作项、分布式版本进展，希望能够通过周报的方式展示我们正在做的工作，并吸引感兴趣的人参与到其中。
>>
>> 最后祝大家度过一个愉快的周末。
>>
>> [一周公告]
>> 1.IOTDB 的官网建设正在进行，你可以点击这里进行预览(https://rhh.666love.cn/ <https://rhh.666love.cn/>)， 然后在邮件列表中直接回复[1]或者在jira[2]中留下你的想法。
>>
>> [1] [DISUCSS] a new IoTDB website
>> [2] https://issues.apache.org/jira/browse/IOTDB-521 <https://issues.apache.org/jira/browse/IOTDB-521>
>>
>> [本周新贡献者] 排名不分先后，热烈欢迎各位
>> 1. SailVR
>> 2. VenkatDatta
>> 3. zzy9424
>> 4. zhanglingzhe0820
>>
>> [分布式版本]
>> 1. 支持了聚合查询
>> 2. 支持了 group by 查询
>> 3. 支持了 fill 查询
>> 4. 支持了部分元数据查询（时间序列、设备查询)
>> 5. raft日志的持久化基本完成
>> 6. 日志追赶简单实现完成，待完善边界情况
>> 7. 增加新节点加入配置检查
>>
>>
>> [本周工作]
>>
>> [正在进行中的工作]
>> 1. #919 使用 TimeColumn 减少数据拷贝
>> 2. #917 优化 memtable 减少乱序数据
>> 3. #910 添加更多设计文档
>> 4. #902 calcite 集成
>> 5. #857 多线程聚合查询
>> 6. #855 优化 tsfile 索引
>> 7. #854 增加 group by fill 查询语句
>> 8. #852 增加 merge 设计文档
>> 9. #777 rest api 开发
>>
>> [待修复 bug]
>> 本周事本周毕，暂未发现更多问题
>>
>> [本周完成的工作]
>> 1. #928 增加更多详细的写入错误码
>> 2. #926 避免空的 memtable 刷盘
>> 3. #925 更新 merge 策略
>> 4. #915 修改 tsfile 写入流程文档
>> 5. #914 为 V0.9 版本增加 insertInBatch 方法
>> 6. #913 减少timeColumn 和 batchdata 之间的数据拷贝
>> 7. #909 增加更多的启动检查
>> 8. #908 #880 增加简单的数据库连接池
>> 9. #906 增加 grafana 文本类型支持
>> 10. #901 提前合并一些分布式代码到 maste 分支减少冲突
>>
>> [已经修复的 bug]
>> 1. #927 在恢复时出现死锁
>> 2. #924 tsfile 测试中产生的问题
>> 3. #922 统计信息测试中的问题
>> 4. #921 删除存储组后在恢复时产生错误
>> 5. #920 空的 chunkmetadata 在 LAST 查询中会产生错误结果
>> 6. #918 重复创建相同 schema 时产生的错误
>> 7. #916 在高速插入时执行 flush 命令产生的错误
>> 8. #907 修复 merge 的部分测试用例
>> 9. #905 修复 timegenerator 中错误缓存的问题
>>
>>
>>
>>
>> Thanks
>> ---
>> Dawei Liu
>>
>>
>>
>>> 2020年3月20日 下午10:03，Dawei Liu <at...@163.com> 写道：
>>>
>>> Hi all,
>>>
>>> Very, very happy as the first speaker to share with you IoTDB news of the week.
>>>
>>> Share content contains new contributors, work items, distributed progress,
>>> hope to show what we are doing, and attract people who are interested.
>>>
>>> Have a good weekend.
>>>
>>> [Weekly announcements]
>>> 1.The new version of the IOTDB website is under construction, you can preview it by clicking here(https://rhh.666love.cn/ <https://rhh.666love.cn/>),
>>> and then reply directly to the mailing list [1] or leave your idea in jira[2].
>>>
>>> [1] [DISUCSS] a new IoTDB website
>>> [2] https://issues.apache.org/jira/browse/IOTDB-521 <https://issues.apache.org/jira/browse/IOTDB-521>
>>>
>>> [New contributors this week] In no particular order, welcome all of you
>>> 1. SailVR
>>> 2. VenkatDatta
>>> 3. zzy9424
>>> 4. zhanglingzhe0820
>>>
>>> [Distributed version progress]
>>> 1. support group by query
>>> 2. support fill query
>>> 3. support some metadata query(timeseries, device)
>>> 4. Log persistence in raft is basicly implemented
>>> 5. Log catch up in raft is simply implemented without boundary check
>>> 6. configuration check when node joins
>>>
>>> [Progress of this week]
>>>
>>> [Work in progress]
>>> 1. #919 switch timeGenerate to use TimeColumn
>>> 2. #917 optimize memtable for reduce unseq data
>>> 3. #910 add system design eng files
>>> 4. #902 calcite integration
>>> 5. #857 parallel aggregation query
>>> 6. #855 new tsfile
>>> 7. #854 group by fill
>>> 8. #852 add merge design doc
>>> 9. #777 rest api support
>>>
>>> [Bugs to be fixed]
>>> Cheers, no bugs found so far
>>>
>>> [Finished work]
>>> 1. #928 add write process error code
>>> 2. #926 avoid flushing empty memtable
>>> 3. #925 update merge recover
>>> 4. #915 fix tsfile write flow diagram doc
>>> 5. #914 add insertInBatch for V0.9
>>> 6. #913 same struce both timeColumn and batchdata
>>> 7. #909 add start-up checks
>>> 8. #908 #880 add a simple connection pool for session api
>>> 9. #906 add text support for grafana
>>> 10. #901 pre-merge distributed some code into master
>>>
>>>
>>> [Bugs that have been fixed]
>>> 1. #927 fix recover deadlock
>>> 2. #924 tsfile test bug
>>> 3. #922 static test bug
>>> 4. #921 deleting sg and initing from mlog
>>> 5. #920 empty chunkmetadata in last query gives wrong answer
>>> 6. #918 add duplicated metadata
>>> 7. #916 execute flush command while inserting
>>> 8. #907 fix unit test for merge
>>> 9. #905 timegenerator cache bug
>>>
>>>
>>>
>>> Thanks
>>> ---
>>> Dawei Liu
>>>
>>>
>>>
>>
>>
>>
Re: [ANNOUNCE] IoTDB Weekly News (2020-03-13~20200320)
Posted by Dawei Liu <at...@163.com>.
Hi，
Thank you for reminding me, I'll do it.
Thanks
---
Dawei Liu
> 2020年3月21日 上午9:59，Willem Jiang <wi...@gmail.com> 写道：
>
> Thanks for Dawei's great summary.
> Can we put this weekly report into the wiki page at same time?
> It could be more easy for people to go through these reports from a certain url.
>
> Willem Jiang
>
> Twitter: willemjiang
> Weibo: 姜宁willem
>
> On Fri, Mar 20, 2020 at 11:15 PM Dawei Liu <at...@163.com> wrote:
>>
>> Hi，
>>
>> Thank you very much. Hope we can build a better IoTDB community together .
>>
>>
>> Thanks
>> ---
>> Dawei Liu
>>
>>
>>
>>> 2020年3月20日 下午10:38，Julian Feinauer <j....@pragmaticminds.de> 写道：
>>>
>>> Awesome, very well done Dawei!
>>>
>>> J
>>>
>>> Am 20.03.20, 15:06 schrieb "Dawei Liu" <at...@163.com>:
>>>
>>> Hi 大家好,
>>>
>>> 非常非常开心作为第一个分享 IoTDB 社区周报的人。
>>>
>>> 正文内容包含本周新贡献者、工作项、分布式版本进展，希望能够通过周报的方式展示我们正在做的工作，并吸引感兴趣的人参与到其中。
>>>
>>> 最后祝大家度过一个愉快的周末。
>>>
>>> [一周公告]
>>> 1.IOTDB 的官网建设正在进行，你可以点击这里进行预览(https://rhh.666love.cn/ <https://rhh.666love.cn/>)， 然后在邮件列表中直接回复[1]或者在jira[2]中留下你的想法。
>>>
>>> [1] [DISUCSS] a new IoTDB website
>>> [2] https://issues.apache.org/jira/browse/IOTDB-521 <https://issues.apache.org/jira/browse/IOTDB-521>
>>>
>>> [本周新贡献者] 排名不分先后，热烈欢迎各位
>>> 1. SailVR
>>> 2. VenkatDatta
>>> 3. zzy9424
>>> 4. zhanglingzhe0820
>>>
>>> [分布式版本]
>>> 1. 支持了聚合查询
>>> 2. 支持了 group by 查询
>>> 3. 支持了 fill 查询
>>> 4. 支持了部分元数据查询（时间序列、设备查询)
>>> 5. raft日志的持久化基本完成
>>> 6. 日志追赶简单实现完成，待完善边界情况
>>> 7. 增加新节点加入配置检查
>>>
>>>
>>> [本周工作]
>>>
>>> [正在进行中的工作]
>>> 1. #919 使用 TimeColumn 减少数据拷贝
>>> 2. #917 优化 memtable 减少乱序数据
>>> 3. #910 添加更多设计文档
>>> 4. #902 calcite 集成
>>> 5. #857 多线程聚合查询
>>> 6. #855 优化 tsfile 索引
>>> 7. #854 增加 group by fill 查询语句
>>> 8. #852 增加 merge 设计文档
>>> 9. #777 rest api 开发
>>>
>>> [待修复 bug]
>>> 本周事本周毕，暂未发现更多问题
>>>
>>> [本周完成的工作]
>>> 1. #928 增加更多详细的写入错误码
>>> 2. #926 避免空的 memtable 刷盘
>>> 3. #925 更新 merge 策略
>>> 4. #915 修改 tsfile 写入流程文档
>>> 5. #914 为 V0.9 版本增加 insertInBatch 方法
>>> 6. #913 减少timeColumn 和 batchdata 之间的数据拷贝
>>> 7. #909 增加更多的启动检查
>>> 8. #908 #880 增加简单的数据库连接池
>>> 9. #906 增加 grafana 文本类型支持
>>> 10. #901 提前合并一些分布式代码到 maste 分支减少冲突
>>>
>>> [已经修复的 bug]
>>> 1. #927 在恢复时出现死锁
>>> 2. #924 tsfile 测试中产生的问题
>>> 3. #922 统计信息测试中的问题
>>> 4. #921 删除存储组后在恢复时产生错误
>>> 5. #920 空的 chunkmetadata 在 LAST 查询中会产生错误结果
>>> 6. #918 重复创建相同 schema 时产生的错误
>>> 7. #916 在高速插入时执行 flush 命令产生的错误
>>> 8. #907 修复 merge 的部分测试用例
>>> 9. #905 修复 timegenerator 中错误缓存的问题
>>>
>>>
>>>
>>>
>>> Thanks
>>> ---
>>> Dawei Liu
>>>
>>>
>>>
>>>> 2020年3月20日 下午10:03，Dawei Liu <at...@163.com> 写道：
>>>>
>>>> Hi all,
>>>>
>>>> Very, very happy as the first speaker to share with you IoTDB news of the week.
>>>>
>>>> Share content contains new contributors, work items, distributed progress,
>>>> hope to show what we are doing, and attract people who are interested.
>>>>
>>>> Have a good weekend.
>>>>
>>>> [Weekly announcements]
>>>> 1.The new version of the IOTDB website is under construction, you can preview it by clicking here(https://rhh.666love.cn/ <https://rhh.666love.cn/>),
>>>> and then reply directly to the mailing list [1] or leave your idea in jira[2].
>>>>
>>>> [1] [DISUCSS] a new IoTDB website
>>>> [2] https://issues.apache.org/jira/browse/IOTDB-521 <https://issues.apache.org/jira/browse/IOTDB-521>
>>>>
>>>> [New contributors this week] In no particular order, welcome all of you
>>>> 1. SailVR
>>>> 2. VenkatDatta
>>>> 3. zzy9424
>>>> 4. zhanglingzhe0820
>>>>
>>>> [Distributed version progress]
>>>> 1. support group by query
>>>> 2. support fill query
>>>> 3. support some metadata query(timeseries, device)
>>>> 4. Log persistence in raft is basicly implemented
>>>> 5. Log catch up in raft is simply implemented without boundary check
>>>> 6. configuration check when node joins
>>>>
>>>> [Progress of this week]
>>>>
>>>> [Work in progress]
>>>> 1. #919 switch timeGenerate to use TimeColumn
>>>> 2. #917 optimize memtable for reduce unseq data
>>>> 3. #910 add system design eng files
>>>> 4. #902 calcite integration
>>>> 5. #857 parallel aggregation query
>>>> 6. #855 new tsfile
>>>> 7. #854 group by fill
>>>> 8. #852 add merge design doc
>>>> 9. #777 rest api support
>>>>
>>>> [Bugs to be fixed]
>>>> Cheers, no bugs found so far
>>>>
>>>> [Finished work]
>>>> 1. #928 add write process error code
>>>> 2. #926 avoid flushing empty memtable
>>>> 3. #925 update merge recover
>>>> 4. #915 fix tsfile write flow diagram doc
>>>> 5. #914 add insertInBatch for V0.9
>>>> 6. #913 same struce both timeColumn and batchdata
>>>> 7. #909 add start-up checks
>>>> 8. #908 #880 add a simple connection pool for session api
>>>> 9. #906 add text support for grafana
>>>> 10. #901 pre-merge distributed some code into master
>>>>
>>>>
>>>> [Bugs that have been fixed]
>>>> 1. #927 fix recover deadlock
>>>> 2. #924 tsfile test bug
>>>> 3. #922 static test bug
>>>> 4. #921 deleting sg and initing from mlog
>>>> 5. #920 empty chunkmetadata in last query gives wrong answer
>>>> 6. #918 add duplicated metadata
>>>> 7. #916 execute flush command while inserting
>>>> 8. #907 fix unit test for merge
>>>> 9. #905 timegenerator cache bug
>>>>
>>>>
>>>>
>>>> Thanks
>>>> ---
>>>> Dawei Liu
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>
Re: [ANNOUNCE] IoTDB Weekly News (2020-03-13~20200320)
Posted by Willem Jiang <wi...@gmail.com>.
Thanks for Dawei's great summary.
Can we put this weekly report into the wiki page at same time?
It could be more easy for people to go through these reports from a certain url.
Willem Jiang
Twitter: willemjiang
Weibo: 姜宁willem
On Fri, Mar 20, 2020 at 11:15 PM Dawei Liu <at...@163.com> wrote:
>
> Hi，
>
> Thank you very much. Hope we can build a better IoTDB community together .
>
>
> Thanks
> ---
> Dawei Liu
>
>
>
> > 2020年3月20日 下午10:38，Julian Feinauer <j....@pragmaticminds.de> 写道：
> >
> > Awesome, very well done Dawei!
> >
> > J
> >
> > Am 20.03.20, 15:06 schrieb "Dawei Liu" <at...@163.com>:
> >
> > Hi 大家好,
> >
> > 非常非常开心作为第一个分享 IoTDB 社区周报的人。
> >
> > 正文内容包含本周新贡献者、工作项、分布式版本进展，希望能够通过周报的方式展示我们正在做的工作，并吸引感兴趣的人参与到其中。
> >
> > 最后祝大家度过一个愉快的周末。
> >
> > [一周公告]
> > 1.IOTDB 的官网建设正在进行，你可以点击这里进行预览(https://rhh.666love.cn/ <https://rhh.666love.cn/>)， 然后在邮件列表中直接回复[1]或者在jira[2]中留下你的想法。
> >
> > [1] [DISUCSS] a new IoTDB website
> > [2] https://issues.apache.org/jira/browse/IOTDB-521 <https://issues.apache.org/jira/browse/IOTDB-521>
> >
> > [本周新贡献者] 排名不分先后，热烈欢迎各位
> > 1. SailVR
> > 2. VenkatDatta
> > 3. zzy9424
> > 4. zhanglingzhe0820
> >
> > [分布式版本]
> > 1. 支持了聚合查询
> > 2. 支持了 group by 查询
> > 3. 支持了 fill 查询
> > 4. 支持了部分元数据查询（时间序列、设备查询)
> > 5. raft日志的持久化基本完成
> > 6. 日志追赶简单实现完成，待完善边界情况
> > 7. 增加新节点加入配置检查
> >
> >
> > [本周工作]
> >
> > [正在进行中的工作]
> > 1. #919 使用 TimeColumn 减少数据拷贝
> > 2. #917 优化 memtable 减少乱序数据
> > 3. #910 添加更多设计文档
> > 4. #902 calcite 集成
> > 5. #857 多线程聚合查询
> > 6. #855 优化 tsfile 索引
> > 7. #854 增加 group by fill 查询语句
> > 8. #852 增加 merge 设计文档
> > 9. #777 rest api 开发
> >
> > [待修复 bug]
> > 本周事本周毕，暂未发现更多问题
> >
> > [本周完成的工作]
> > 1. #928 增加更多详细的写入错误码
> > 2. #926 避免空的 memtable 刷盘
> > 3. #925 更新 merge 策略
> > 4. #915 修改 tsfile 写入流程文档
> > 5. #914 为 V0.9 版本增加 insertInBatch 方法
> > 6. #913 减少timeColumn 和 batchdata 之间的数据拷贝
> > 7. #909 增加更多的启动检查
> > 8. #908 #880 增加简单的数据库连接池
> > 9. #906 增加 grafana 文本类型支持
> > 10. #901 提前合并一些分布式代码到 maste 分支减少冲突
> >
> > [已经修复的 bug]
> > 1. #927 在恢复时出现死锁
> > 2. #924 tsfile 测试中产生的问题
> > 3. #922 统计信息测试中的问题
> > 4. #921 删除存储组后在恢复时产生错误
> > 5. #920 空的 chunkmetadata 在 LAST 查询中会产生错误结果
> > 6. #918 重复创建相同 schema 时产生的错误
> > 7. #916 在高速插入时执行 flush 命令产生的错误
> > 8. #907 修复 merge 的部分测试用例
> > 9. #905 修复 timegenerator 中错误缓存的问题
> >
> >
> >
> >
> > Thanks
> > ---
> > Dawei Liu
> >
> >
> >
> >> 2020年3月20日 下午10:03，Dawei Liu <at...@163.com> 写道：
> >>
> >> Hi all,
> >>
> >> Very, very happy as the first speaker to share with you IoTDB news of the week.
> >>
> >> Share content contains new contributors, work items, distributed progress,
> >> hope to show what we are doing, and attract people who are interested.
> >>
> >> Have a good weekend.
> >>
> >> [Weekly announcements]
> >> 1.The new version of the IOTDB website is under construction, you can preview it by clicking here(https://rhh.666love.cn/ <https://rhh.666love.cn/>),
> >> and then reply directly to the mailing list [1] or leave your idea in jira[2].
> >>
> >> [1] [DISUCSS] a new IoTDB website
> >> [2] https://issues.apache.org/jira/browse/IOTDB-521 <https://issues.apache.org/jira/browse/IOTDB-521>
> >>
> >> [New contributors this week] In no particular order, welcome all of you
> >> 1. SailVR
> >> 2. VenkatDatta
> >> 3. zzy9424
> >> 4. zhanglingzhe0820
> >>
> >> [Distributed version progress]
> >> 1. support group by query
> >> 2. support fill query
> >> 3. support some metadata query(timeseries, device)
> >> 4. Log persistence in raft is basicly implemented
> >> 5. Log catch up in raft is simply implemented without boundary check
> >> 6. configuration check when node joins
> >>
> >> [Progress of this week]
> >>
> >> [Work in progress]
> >> 1. #919 switch timeGenerate to use TimeColumn
> >> 2. #917 optimize memtable for reduce unseq data
> >> 3. #910 add system design eng files
> >> 4. #902 calcite integration
> >> 5. #857 parallel aggregation query
> >> 6. #855 new tsfile
> >> 7. #854 group by fill
> >> 8. #852 add merge design doc
> >> 9. #777 rest api support
> >>
> >> [Bugs to be fixed]
> >> Cheers, no bugs found so far
> >>
> >> [Finished work]
> >> 1. #928 add write process error code
> >> 2. #926 avoid flushing empty memtable
> >> 3. #925 update merge recover
> >> 4. #915 fix tsfile write flow diagram doc
> >> 5. #914 add insertInBatch for V0.9
> >> 6. #913 same struce both timeColumn and batchdata
> >> 7. #909 add start-up checks
> >> 8. #908 #880 add a simple connection pool for session api
> >> 9. #906 add text support for grafana
> >> 10. #901 pre-merge distributed some code into master
> >>
> >>
> >> [Bugs that have been fixed]
> >> 1. #927 fix recover deadlock
> >> 2. #924 tsfile test bug
> >> 3. #922 static test bug
> >> 4. #921 deleting sg and initing from mlog
> >> 5. #920 empty chunkmetadata in last query gives wrong answer
> >> 6. #918 add duplicated metadata
> >> 7. #916 execute flush command while inserting
> >> 8. #907 fix unit test for merge
> >> 9. #905 timegenerator cache bug
> >>
> >>
> >>
> >> Thanks
> >> ---
> >> Dawei Liu
> >>
> >>
> >>
> >
> >
> >
>
Re: [ANNOUNCE] IoTDB Weekly News (2020-03-13~20200320)
Posted by Dawei Liu <at...@163.com>.
Hi，
Thank you very much. Hope we can build a better IoTDB community together .
Thanks
---
Dawei Liu
> 2020年3月20日 下午10:38，Julian Feinauer <j....@pragmaticminds.de> 写道：
>
> Awesome, very well done Dawei!
>
> J
>
> Am 20.03.20, 15:06 schrieb "Dawei Liu" <at...@163.com>:
>
> Hi 大家好,
>
> 非常非常开心作为第一个分享 IoTDB 社区周报的人。
>
> 正文内容包含本周新贡献者、工作项、分布式版本进展，希望能够通过周报的方式展示我们正在做的工作，并吸引感兴趣的人参与到其中。
>
> 最后祝大家度过一个愉快的周末。
>
> [一周公告]
> 1.IOTDB 的官网建设正在进行，你可以点击这里进行预览(https://rhh.666love.cn/ <https://rhh.666love.cn/>)， 然后在邮件列表中直接回复[1]或者在jira[2]中留下你的想法。
>
> [1] [DISUCSS] a new IoTDB website
> [2] https://issues.apache.org/jira/browse/IOTDB-521 <https://issues.apache.org/jira/browse/IOTDB-521>
>
> [本周新贡献者] 排名不分先后，热烈欢迎各位
> 1. SailVR
> 2. VenkatDatta
> 3. zzy9424
> 4. zhanglingzhe0820
>
> [分布式版本]
> 1. 支持了聚合查询
> 2. 支持了 group by 查询
> 3. 支持了 fill 查询
> 4. 支持了部分元数据查询（时间序列、设备查询)
> 5. raft日志的持久化基本完成
> 6. 日志追赶简单实现完成，待完善边界情况
> 7. 增加新节点加入配置检查
>
>
> [本周工作]
>
> [正在进行中的工作]
> 1. #919 使用 TimeColumn 减少数据拷贝
> 2. #917 优化 memtable 减少乱序数据
> 3. #910 添加更多设计文档
> 4. #902 calcite 集成
> 5. #857 多线程聚合查询
> 6. #855 优化 tsfile 索引
> 7. #854 增加 group by fill 查询语句
> 8. #852 增加 merge 设计文档
> 9. #777 rest api 开发
>
> [待修复 bug]
> 本周事本周毕，暂未发现更多问题
>
> [本周完成的工作]
> 1. #928 增加更多详细的写入错误码
> 2. #926 避免空的 memtable 刷盘
> 3. #925 更新 merge 策略
> 4. #915 修改 tsfile 写入流程文档
> 5. #914 为 V0.9 版本增加 insertInBatch 方法
> 6. #913 减少timeColumn 和 batchdata 之间的数据拷贝
> 7. #909 增加更多的启动检查
> 8. #908 #880 增加简单的数据库连接池
> 9. #906 增加 grafana 文本类型支持
> 10. #901 提前合并一些分布式代码到 maste 分支减少冲突
>
> [已经修复的 bug]
> 1. #927 在恢复时出现死锁
> 2. #924 tsfile 测试中产生的问题
> 3. #922 统计信息测试中的问题
> 4. #921 删除存储组后在恢复时产生错误
> 5. #920 空的 chunkmetadata 在 LAST 查询中会产生错误结果
> 6. #918 重复创建相同 schema 时产生的错误
> 7. #916 在高速插入时执行 flush 命令产生的错误
> 8. #907 修复 merge 的部分测试用例
> 9. #905 修复 timegenerator 中错误缓存的问题
>
>
>
>
> Thanks
> ---
> Dawei Liu
>
>
>
>> 2020年3月20日 下午10:03，Dawei Liu <at...@163.com> 写道：
>>
>> Hi all,
>>
>> Very, very happy as the first speaker to share with you IoTDB news of the week.
>>
>> Share content contains new contributors, work items, distributed progress,
>> hope to show what we are doing, and attract people who are interested.
>>
>> Have a good weekend.
>>
>> [Weekly announcements]
>> 1.The new version of the IOTDB website is under construction, you can preview it by clicking here(https://rhh.666love.cn/ <https://rhh.666love.cn/>),
>> and then reply directly to the mailing list [1] or leave your idea in jira[2].
>>
>> [1] [DISUCSS] a new IoTDB website
>> [2] https://issues.apache.org/jira/browse/IOTDB-521 <https://issues.apache.org/jira/browse/IOTDB-521>
>>
>> [New contributors this week] In no particular order, welcome all of you
>> 1. SailVR
>> 2. VenkatDatta
>> 3. zzy9424
>> 4. zhanglingzhe0820
>>
>> [Distributed version progress]
>> 1. support group by query
>> 2. support fill query
>> 3. support some metadata query(timeseries, device)
>> 4. Log persistence in raft is basicly implemented
>> 5. Log catch up in raft is simply implemented without boundary check
>> 6. configuration check when node joins
>>
>> [Progress of this week]
>>
>> [Work in progress]
>> 1. #919 switch timeGenerate to use TimeColumn
>> 2. #917 optimize memtable for reduce unseq data
>> 3. #910 add system design eng files
>> 4. #902 calcite integration
>> 5. #857 parallel aggregation query
>> 6. #855 new tsfile
>> 7. #854 group by fill
>> 8. #852 add merge design doc
>> 9. #777 rest api support
>>
>> [Bugs to be fixed]
>> Cheers, no bugs found so far
>>
>> [Finished work]
>> 1. #928 add write process error code
>> 2. #926 avoid flushing empty memtable
>> 3. #925 update merge recover
>> 4. #915 fix tsfile write flow diagram doc
>> 5. #914 add insertInBatch for V0.9
>> 6. #913 same struce both timeColumn and batchdata
>> 7. #909 add start-up checks
>> 8. #908 #880 add a simple connection pool for session api
>> 9. #906 add text support for grafana
>> 10. #901 pre-merge distributed some code into master
>>
>>
>> [Bugs that have been fixed]
>> 1. #927 fix recover deadlock
>> 2. #924 tsfile test bug
>> 3. #922 static test bug
>> 4. #921 deleting sg and initing from mlog
>> 5. #920 empty chunkmetadata in last query gives wrong answer
>> 6. #918 add duplicated metadata
>> 7. #916 execute flush command while inserting
>> 8. #907 fix unit test for merge
>> 9. #905 timegenerator cache bug
>>
>>
>>
>> Thanks
>> ---
>> Dawei Liu
>>
>>
>>
>
>
>
Re: [ANNOUNCE] IoTDB Weekly News (2020-03-13~20200320)
Posted by Julian Feinauer <j....@pragmaticminds.de>.
Awesome, very well done Dawei!
J
Am 20.03.20, 15:06 schrieb "Dawei Liu" <at...@163.com>:
Hi 大家好,
非常非常开心作为第一个分享 IoTDB 社区周报的人。
正文内容包含本周新贡献者、工作项、分布式版本进展，希望能够通过周报的方式展示我们正在做的工作，并吸引感兴趣的人参与到其中。
最后祝大家度过一个愉快的周末。
[一周公告]
1.IOTDB 的官网建设正在进行，你可以点击这里进行预览(https://rhh.666love.cn/ <https://rhh.666love.cn/>)， 然后在邮件列表中直接回复[1]或者在jira[2]中留下你的想法。
[1] [DISUCSS] a new IoTDB website
[2] https://issues.apache.org/jira/browse/IOTDB-521 <https://issues.apache.org/jira/browse/IOTDB-521>
[本周新贡献者] 排名不分先后，热烈欢迎各位
1. SailVR
2. VenkatDatta
3. zzy9424
4. zhanglingzhe0820
[分布式版本]
1. 支持了聚合查询
2. 支持了 group by 查询
3. 支持了 fill 查询
4. 支持了部分元数据查询（时间序列、设备查询)
5. raft日志的持久化基本完成
6. 日志追赶简单实现完成，待完善边界情况
7. 增加新节点加入配置检查
[本周工作]
[正在进行中的工作]
1. #919 使用 TimeColumn 减少数据拷贝
2. #917 优化 memtable 减少乱序数据
3. #910 添加更多设计文档
4. #902 calcite 集成
5. #857 多线程聚合查询
6. #855 优化 tsfile 索引
7. #854 增加 group by fill 查询语句
8. #852 增加 merge 设计文档
9. #777 rest api 开发
[待修复 bug]
本周事本周毕，暂未发现更多问题
[本周完成的工作]
1. #928 增加更多详细的写入错误码
2. #926 避免空的 memtable 刷盘
3. #925 更新 merge 策略
4. #915 修改 tsfile 写入流程文档
5. #914 为 V0.9 版本增加 insertInBatch 方法
6. #913 减少timeColumn 和 batchdata 之间的数据拷贝
7. #909 增加更多的启动检查
8. #908 #880 增加简单的数据库连接池
9. #906 增加 grafana 文本类型支持
10. #901 提前合并一些分布式代码到 maste 分支减少冲突
[已经修复的 bug]
1. #927 在恢复时出现死锁
2. #924 tsfile 测试中产生的问题
3. #922 统计信息测试中的问题
4. #921 删除存储组后在恢复时产生错误
5. #920 空的 chunkmetadata 在 LAST 查询中会产生错误结果
6. #918 重复创建相同 schema 时产生的错误
7. #916 在高速插入时执行 flush 命令产生的错误
8. #907 修复 merge 的部分测试用例
9. #905 修复 timegenerator 中错误缓存的问题
Thanks
---
Dawei Liu
> 2020年3月20日 下午10:03，Dawei Liu <at...@163.com> 写道：
>
> Hi all,
>
> Very, very happy as the first speaker to share with you IoTDB news of the week.
>
> Share content contains new contributors, work items, distributed progress,
> hope to show what we are doing, and attract people who are interested.
>
> Have a good weekend.
>
> [Weekly announcements]
> 1.The new version of the IOTDB website is under construction, you can preview it by clicking here(https://rhh.666love.cn/ <https://rhh.666love.cn/>),
> and then reply directly to the mailing list [1] or leave your idea in jira[2].
>
> [1] [DISUCSS] a new IoTDB website
> [2] https://issues.apache.org/jira/browse/IOTDB-521 <https://issues.apache.org/jira/browse/IOTDB-521>
>
> [New contributors this week] In no particular order, welcome all of you
> 1. SailVR
> 2. VenkatDatta
> 3. zzy9424
> 4. zhanglingzhe0820
>
> [Distributed version progress]
> 1. support group by query
> 2. support fill query
> 3. support some metadata query(timeseries, device)
> 4. Log persistence in raft is basicly implemented
> 5. Log catch up in raft is simply implemented without boundary check
> 6. configuration check when node joins
>
> [Progress of this week]
>
> [Work in progress]
> 1. #919 switch timeGenerate to use TimeColumn
> 2. #917 optimize memtable for reduce unseq data
> 3. #910 add system design eng files
> 4. #902 calcite integration
> 5. #857 parallel aggregation query
> 6. #855 new tsfile
> 7. #854 group by fill
> 8. #852 add merge design doc
> 9. #777 rest api support
>
> [Bugs to be fixed]
> Cheers, no bugs found so far
>
> [Finished work]
> 1. #928 add write process error code
> 2. #926 avoid flushing empty memtable
> 3. #925 update merge recover
> 4. #915 fix tsfile write flow diagram doc
> 5. #914 add insertInBatch for V0.9
> 6. #913 same struce both timeColumn and batchdata
> 7. #909 add start-up checks
> 8. #908 #880 add a simple connection pool for session api
> 9. #906 add text support for grafana
> 10. #901 pre-merge distributed some code into master
>
>
> [Bugs that have been fixed]
> 1. #927 fix recover deadlock
> 2. #924 tsfile test bug
> 3. #922 static test bug
> 4. #921 deleting sg and initing from mlog
> 5. #920 empty chunkmetadata in last query gives wrong answer
> 6. #918 add duplicated metadata
> 7. #916 execute flush command while inserting
> 8. #907 fix unit test for merge
> 9. #905 timegenerator cache bug
>
>
>
> Thanks
> ---
> Dawei Liu
>
>
>
Re: [ANNOUNCE] IoTDB Weekly News (2020-03-13~20200320)
Posted by Dawei Liu <at...@163.com>.
Hi 大家好,
非常非常开心作为第一个分享 IoTDB 社区周报的人。
正文内容包含本周新贡献者、工作项、分布式版本进展，希望能够通过周报的方式展示我们正在做的工作，并吸引感兴趣的人参与到其中。
最后祝大家度过一个愉快的周末。
[一周公告]
1.IOTDB 的官网建设正在进行，你可以点击这里进行预览(https://rhh.666love.cn/ <https://rhh.666love.cn/>)， 然后在邮件列表中直接回复[1]或者在jira[2]中留下你的想法。
[1] [DISUCSS] a new IoTDB website
[2] https://issues.apache.org/jira/browse/IOTDB-521 <https://issues.apache.org/jira/browse/IOTDB-521>
[本周新贡献者] 排名不分先后，热烈欢迎各位
1. SailVR
2. VenkatDatta
3. zzy9424
4. zhanglingzhe0820
[分布式版本]
1. 支持了聚合查询
2. 支持了 group by 查询
3. 支持了 fill 查询
4. 支持了部分元数据查询（时间序列、设备查询)
5. raft日志的持久化基本完成
6. 日志追赶简单实现完成，待完善边界情况
7. 增加新节点加入配置检查
[本周工作]
[正在进行中的工作]
1. #919 使用 TimeColumn 减少数据拷贝
2. #917 优化 memtable 减少乱序数据
3. #910 添加更多设计文档
4. #902 calcite 集成
5. #857 多线程聚合查询
6. #855 优化 tsfile 索引
7. #854 增加 group by fill 查询语句
8. #852 增加 merge 设计文档
9. #777 rest api 开发
[待修复 bug]
本周事本周毕，暂未发现更多问题
[本周完成的工作]
1. #928 增加更多详细的写入错误码
2. #926 避免空的 memtable 刷盘
3. #925 更新 merge 策略
4. #915 修改 tsfile 写入流程文档
5. #914 为 V0.9 版本增加 insertInBatch 方法
6. #913 减少timeColumn 和 batchdata 之间的数据拷贝
7. #909 增加更多的启动检查
8. #908 #880 增加简单的数据库连接池
9. #906 增加 grafana 文本类型支持
10. #901 提前合并一些分布式代码到 maste 分支减少冲突
[已经修复的 bug]
1. #927 在恢复时出现死锁
2. #924 tsfile 测试中产生的问题
3. #922 统计信息测试中的问题
4. #921 删除存储组后在恢复时产生错误
5. #920 空的 chunkmetadata 在 LAST 查询中会产生错误结果
6. #918 重复创建相同 schema 时产生的错误
7. #916 在高速插入时执行 flush 命令产生的错误
8. #907 修复 merge 的部分测试用例
9. #905 修复 timegenerator 中错误缓存的问题
Thanks
---
Dawei Liu
> 2020年3月20日 下午10:03，Dawei Liu <at...@163.com> 写道：
>
> Hi all,
>
> Very, very happy as the first speaker to share with you IoTDB news of the week.
>
> Share content contains new contributors, work items, distributed progress,
> hope to show what we are doing, and attract people who are interested.
>
> Have a good weekend.
>
> [Weekly announcements]
> 1.The new version of the IOTDB website is under construction, you can preview it by clicking here(https://rhh.666love.cn/ <https://rhh.666love.cn/>),
> and then reply directly to the mailing list [1] or leave your idea in jira[2].
>
> [1] [DISUCSS] a new IoTDB website
> [2] https://issues.apache.org/jira/browse/IOTDB-521 <https://issues.apache.org/jira/browse/IOTDB-521>
>
> [New contributors this week] In no particular order, welcome all of you
> 1. SailVR
> 2. VenkatDatta
> 3. zzy9424
> 4. zhanglingzhe0820
>
> [Distributed version progress]
> 1. support group by query
> 2. support fill query
> 3. support some metadata query(timeseries, device)
> 4. Log persistence in raft is basicly implemented
> 5. Log catch up in raft is simply implemented without boundary check
> 6. configuration check when node joins
>
> [Progress of this week]
>
> [Work in progress]
> 1. #919 switch timeGenerate to use TimeColumn
> 2. #917 optimize memtable for reduce unseq data
> 3. #910 add system design eng files
> 4. #902 calcite integration
> 5. #857 parallel aggregation query
> 6. #855 new tsfile
> 7. #854 group by fill
> 8. #852 add merge design doc
> 9. #777 rest api support
>
> [Bugs to be fixed]
> Cheers, no bugs found so far
>
> [Finished work]
> 1. #928 add write process error code
> 2. #926 avoid flushing empty memtable
> 3. #925 update merge recover
> 4. #915 fix tsfile write flow diagram doc
> 5. #914 add insertInBatch for V0.9
> 6. #913 same struce both timeColumn and batchdata
> 7. #909 add start-up checks
> 8. #908 #880 add a simple connection pool for session api
> 9. #906 add text support for grafana
> 10. #901 pre-merge distributed some code into master
>
>
> [Bugs that have been fixed]
> 1. #927 fix recover deadlock
> 2. #924 tsfile test bug
> 3. #922 static test bug
> 4. #921 deleting sg and initing from mlog
> 5. #920 empty chunkmetadata in last query gives wrong answer
> 6. #918 add duplicated metadata
> 7. #916 execute flush command while inserting
> 8. #907 fix unit test for merge
> 9. #905 timegenerator cache bug
>
>
>
> Thanks
> ---
> Dawei Liu
>
>
>