Hi Xiangdong,
thanks for the info.
How is it in the case when you use the Reader / Writer API for the tsfiles
directly (or should this be considered "deprecated")?
Can these files come to corrupted state?
One Situation where we have to deal with these situations is "at the edge" when
we have devices inside large machines.
Usually at the end of the shift these machines (and therefore our device) is
powered off hard, so no shutdown or de-initialization is possible.
Best
Julian
Am 04.03.19, 12:14 schrieb "Xiangdong Huang" <saint...@gmail.com>:
Hi,
IoTDB can support either on a server with 7*24 or a RaspberryPi. We have
tested both the two scenario.
When you shutdown an IoTDB instance in force (e.g., power off) and restart
it again, no data loses ( if you enable the WAL).
However, currently we do not optimize the time cost of the restart process.
It is an important feature that we need to do, because we hope IoTDB can
support data management either on the edge devices or the data center.
And, the default configuration is not so suitable for running on the edge
device. (e.g., block size is 128MB, which is too large for a RaspberryPi,
and will slow down the restart process because there are too much WAL data
on disk).
Best,
-----------------------------------
Xiangdong Huang
School of Software, Tsinghua University
黄向东
清华大学 软件学院
Tim Mitsch <t.mit...@pragmaticindustries.de> 于2019年3月4日周一 下午6:53写道：
> Hello development-team
>
> First of all thanks for developing this kind of interesting project and
> bringing it into apache incubator.
>
> I have a question regarding the place of operation and robustness:
>
> * Is iotDB concepted as application on a server which is running 24/7
> or
> * Is it also possible to run it on a device like RaspberryPi or IPC,
> where operation can interrupt.
> I’m asking because i’m searching for solution for a temporary storage that
> is robust against spontaneous interrupt, e.g. switch off electricity
> without regular shutdown of OS – have u tested something like this yet?
>
> Best regards
> Tim
>
>
>
