Re: What are all the empty "ext" directories for?

[Xiangdong Huang]

"ext" refers to "extension", and its subfolder:
- trigger, similar with trigger in RDBMS.
- udf, user define functions.
- PIPE, a new function for ETL or data subscription.

All the above need to users claiming their data processing logic using
jar files.
So as Trevor said, you can put your jar files there.


Best,
---
Xiangdong Huang

18110526...@163.com <18110526...@163.com> 于2023年7月14日周五 08:55写道：
>
> We have written the relevant documentation, you can see 
> https://apache-iotdb.feishu.cn/docx/SG1DdQklco67oaxSLbYcghWxnkc.
> > 2023年7月12日 20:45，Christofer Dutz  写道：
> >
> > Hi,
> >
> > so playing around with IoTDB running in embedded mode, I noticed that it 
> > creates a directory “data” which totally makes sense to me, as it contains 
> > all the data.
> > However it also creates a whole tree under “ext” which just seems to 
> > contain loads of empty directories.
> > What’s the purpose of these and could we prevent them from being created, 
> > if they are not needed?
> >
> > ext
> >   /pipe
> >  /install
> >  /tmp
> >/trigger
> >  /install
> >  /tmp
> >/udf
> >  /install
> >  /tmp
> >
> >
> > Chris
>

[BUILD-FAILURE]: Job 'IoTDB/IoTDB-pip-new/master [master] [287]'

[Apache Jenkins Server]

BUILD-FAILURE: Job 'IoTDB/IoTDB-pip-new/master [master] [287]':

Check console output at "https://ci-builds.apache.org/job/IoTDB/job/IoTDB-pip-new/job/master/287/;>IoTDB/IoTDB-pip-new/master
 [master] [287]"

Re: What are all the empty "ext" directories for?

[18110526...@163.com]

We have written the relevant documentation, you can see 
https://apache-iotdb.feishu.cn/docx/SG1DdQklco67oaxSLbYcghWxnkc.
> 2023年7月12日 20:45，Christofer Dutz  写道：
> 
> Hi,
> 
> so playing around with IoTDB running in embedded mode, I noticed that it 
> creates a directory “data” which totally makes sense to me, as it contains 
> all the data.
> However it also creates a whole tree under “ext” which just seems to contain 
> loads of empty directories.
> What’s the purpose of these and could we prevent them from being created, if 
> they are not needed?
> 
> ext
>   /pipe
>  /install
>  /tmp
>/trigger
>  /install
>  /tmp
>/udf
>  /install
>  /tmp
> 
> 
> Chris