Re: New branch rel/0.13 checked out

Fully agree. 0.13.x has soo many cool features that I cant wait to get my hands on it : ) Awesome work everybody! Julian From: Jialin Qiao Date: Thursday, 20. January 2022 at 03:11 To: dev@iotdb.apache.org Subject: Re: New branch rel/0.13 checked out Looking forward to 0.13.0!

AW: Usage of Relation Algebra, Calcite and Query Optimization in IoTDB

Hi Xiangdong, hi Giorgio, I will share my code soon but currently the code is heavy WIP. You can find it here in this branch: https://github.com/JulianFeinauer/incubator-iotdb/tree/experimental/typeless-backend Places to look at are here:

Usage of Relation Algebra, Calcite and Query Optimization in IoTDB

Hi folks, I did some discussions already with others but wanted to bring the topic now to the list. Currently, we have no “real” Query Optimizer in IoTDB. We do some heuristics to optimize queries but not in the way a regular RDBMS does things. Some of you may have heard of the Apache Calcite

Usage of Relation Algebra, Calcite and Query Optimization in IoTDB

Hi folks, I did some discussions already with others but wanted to bring the topic now to the list. Currently, we have no “real” Query Optimizer in IoTDB. We do some heuristics to optimize queries but not in the way a regular RDBMS does things. Some of you may have heard of the Apache Calcite

Performance Improvements with Code Generation

Hi all, after a short discussion I had today with Jialin I took some minutes to see if / how code generation could help us to impove the performance on Queries. The first thing I looked at was the Filterin in the SeriesReader. Currently many Filters have if conditions / branches in their

AW: Quarterly report of IoTDB

Fine, from my side! Julian Von: Xiangdong Huang Datum: Mittwoch, 8. Dezember 2021 um 14:22 An: dev Betreff: Quarterly report of IoTDB Hi all, today is the last day to submit the quarterly report of IoTDB to the Board. It is my fault that not preparing it earlier. The following is the draft:

AW: IoTDB-quality applying for subproject

软件学院 Julian Feinauer 于2021年11月26日周五 上午3:07写道： > > Hey, > > thats really good news and I did not yet know about the package but we will > certainly have a look as that’s exactly what we need at the moment! > > Great Job! > Julian > > Von: Houliang Qi > Datum: Do

AW: IoTDB-quality applying for subproject

Hey, thats really good news and I did not yet know about the package but we will certainly have a look as that’s exactly what we need at the moment! Great Job! Julian Von: Houliang Qi Datum: Donnerstag, 25. November 2021 um 03:57 An: dev@iotdb.apache.org Betreff: Re: IoTDB-quality applying

AW: refactor cluster discussion

ther and how to decouple > > and smoothly change to another RPC framework? > > > > Besides, I wonder how do you find these Chinese materials... > > > > Best, > > > > --- > > Xiangdong Huang > > School of Sof

AW: share a rust based IoTDB-client

36写道： > > > Yes, I have contacted him, and he has already subscribed to the mailing > > list. > > > > --- > > Xiangdong Huang > > School of Software, Tsinghua University > > > > 黄向东 > > 清华大学 软件学院 > >

AW: refactor cluster discussion

, the better. If some RPC requests can not be avoid, then the other way is reduce the message size of the request and response. Best, --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Julian Feinauer 于2021年11月23日周二 下午4:14写道： > > Hi Com

AW: share a rust based IoTDB-client

Thats pretty cool work. Did you contact the author @Xiangdong? I think it would be cool to invite him here to this community if hes not already in? Best Julian Von: Xiangdong Huang Datum: Mittwoch, 17. November 2021 um 03:42 An: dev Betreff: share a rust based IoTDB-client Hi, to whom may be

AW: refactor cluster discussion

Hi Community, I really like the discussions here and although I do not find enough time (and language skills in Chinese) to participate in the meetups I think we are on a very good way. While reading through the docs provided I just quickly had two thoughts that I wanted to share here *

AW: please add JIRA ticket and ping me/jialin to add assignment permission if you want to assign some issues to yourself

Hey Giorgio, I have this little site setup where you can easily and freely register a demo site: https://iotdb.demo.service.pragmaticindustries.com/ Here is my pypi with TestContainers support and Pandas integration: https://pypi.org/project/apache-iotdb-nightly/ Best Julian Von: Giorgio

AW: please add JIRA ticket and ping me/jialin to add assignment permission if you want to assign some issues to yourself

Hi Giorgio, you can also ping me with further questions as I also did a integration of pandas and IoTDB to make python more convenient. Currently I am preparing a Django integration as well. Julian Von: Giorgio Zoppi Datum: Montag, 25. Oktober 2021 um 18:29 An: dev Betreff: Re: please add

AW: [DISCUSS] use different docker image name for iotdb modules

But can docker-compose also use different command using the same docker image? > > Best, > --- > Xiangdong Huang > School of Software, Tsinghua University > > 黄向东 > 清华大学 软件学院 > > Julian Feinauer 于2021年10月20日周三 下午9:25写道： >&g

AW: [DISCUSS] use different docker image name for iotdb modules

I think `docker run image command` is also a good solution and maybe better than my proposal :D But can docker-compose also use different command using the same docker image? Best, --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Jul

AW: [DISCUSS] use different docker image name for iotdb modules

Hey, I agree with it (and already stumbled upon it). Another alternative would be to have only one image containing data for all three modules and an entrypoint script which distinguishes what process would really start. So you would just do ``` docker run iotdb <-- regular docker run iotdb

Tags for Apache IoTDB on Stackoverflow

Hi folks, thanks to Chris we have now two dedicated tags on Stackoverflow: iotdb and apache-iotdb where you can tag respective questions or watch them tob e able to answer them better! https://stackoverflow.com/questions/tagged/iotdb https://stackoverflow.com/questions/tagged/apache-iotdb

AW: Use of generics.

Hey, that is, although not very elegant a very common pattern in Java and is e.g. also used by Apache Calcite internally. There a "Table Scan" is roughly representat as an Object[][]. It would be more elegant to use Generics but as Yuan states the first dimension of the array dictates the rows

AW: IOTDB-Lite as sqllite approach

Hi Giorgio and Xiangdong, I agree with both of you. And as initially indicated I think the long term perfect way would be to have a C based implementation for the whole "process" with wrappers for many languages and ecosystems (as SQLITE does it). And I agree that the advantage in a Java setup

AW: Endianess.

Big +1 for fixed Endianness! I think a C implementation would also be beneficial for something like a sqlite interface (see my thread here https://lists.apache.org/thread.html/rd4d0296e0fef9c1c822f605f641d829047e0932429499a5e05667b8e%40%3Cdev.iotdb.apache.org%3E) as it could be wrapped to

IOTDB-Lite as sqllite approach

Hi folks, I just came up with a little idea to improve the usage of TSFiles at the „edge“. What if we create an access layer (besides the Readers /Writers) to access the TSFiles with SQL as if they were in the server. Thats basically the same that sqlite does with extreme success

Re: TsFile Native Library.

Thank you Chris! I personally also would love to try this out and would be happy to join any efforts in this regard. We already discussed tsfile in go with Chris and Niklas. Julian Holen Sie sich Outlook für Android From: Christofer Dutz

Running IoTDB in Kubernetes

Hi Folks, I finally found some time to continue working on running IoTDB in Kubernetes. Some may remember that I posted a draft Helm Chart (https://artifacthub.io/packages/helm/apache-iotdb-single-node/apache-iotdb). Now I made some progress on running the Cluster Module in Kubernetes as well

Re: [DISCUSS] anniversary celebration of Apache IoTDB to TLP

Hey, First of big thanks to Prof Wang for this gift to the project! I would really love to have an IoTDB shirt (i have some db shirts already but none from the coolest tsdb...). And we should send one to Andy Pavlo then as well as he collects shirts from Databases. I think it would be cool to

Re: discuss why we have to replace hostname to ip in the cluster module

+1 from me (stumbled across this while setup of cluster mode in k8s) i think we could leave the resolution or dns caching to the underlying os. Julian Holen Sie sich Outlook für Android From: Xiangdong Huang Sent: Friday, August 27, 2021

AW: Do we need a new Query Engine?

wer of their query language. Lots of functions and the possibility to do math on timeseries Sharing some examples may be the first step to open our mind :D Best, --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Julian Feinauer 于2021年2月23日周二 上午4:3

Do we need a new Query Engine?

Hi folks, the title is a bit drastic but what I wanted to bring up as a discussion is what we plan to allow in our Query Language. I worked a bit with Prometheus recently and what I really love there is the power of their query language. Lots of functions and the possibility to do math on

Re: Update for Python Lib for 0.10.1

hub.com/apache/iotdb/pull/2127 > [2] https://github.com/apache/iotdb/pull/2128 > > Best, > --- > Xiangdong Huang > School of Software, Tsinghua University > > 黄向东 > 清华大学 软件学院 > > > Juli

Update for Python Lib for 0.10.1

Hi Folks, as already discussed before I made a small pypi package to make it easier for us to use IoTDB in Python with Release 0.10.1 (as the python stuff there was not straightforward to include). I recently pushed a new version with support fort he awesome Python Testcontainers Project:

Re: grafana plugin

Hi Boris, this looks awesome (at least the screenshots). I will have to try a look with a translator as you know 我聽不懂中文 Best Julian Am 20.11.20, 09:07 schrieb "Boris Zhu" : Hi all here is the design of the new grafana plugin. Here is the doc link [1].

Re: A trial of compiling IoTDB to native binary image

Wow, this is awesome news! Is your setup based on graalvm? I tried the same with plc4x but had issues with netty and its heavy usage of reflections. Julian Holen Sie sich Outlook für Android From: Xiangdong Huang Sent: Wednesday,

Re: Embdedded IoTDB Grafana Endpoint

such a module) Best, --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Julian Feinauer 于2020年11月6日周五 下午6:13写道： > Hi folks, > > as we just discussed the prometheus integration, what do you th

Embdedded IoTDB Grafana Endpoint

Hi folks, as we just discussed the prometheus integration, what do you think of an option to run the SimpleJson Grafana Connector directly in IoTDBs Server Context (could be disbaled by default). This would make it way easier for users to just „look“ aat their IoTDB Data. WDYT? Julian

Re: Grafana Docker

, Tsinghua University 黄向东 清华大学 软件学院 Julian Feinauer 于2020年11月4日周三 下午8:14写道： > Hi Simon, > > gratulations to your first mail here : ) > Indeed it is quite simple and there also are docker containers somewhere > from Xiangdong or myself even. >

Re: Grafana Docker

;http://www.pragmaticminds.de/> pragmatic minds GmbH, Sitz: Kirchheim unter Teck, Amtsgericht Stuttgart - HRB 757136, Geschäftsführer: Dr. Julian Feinauer

Re: Refactor Docker Package

939 Best, --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Julian Feinauer 于2020年10月26日周一 下午9:28写道： > Hi, > > in fact so far I only worked in a separate github to provide it fort he > old 0.10.1 release. > &g

Re: back and considering releasing v0.11

- 发件人: "Julian Feinauer" 发送时间: 2020-11-03 16:02:50 (星期二) 收件人: "dev@iotdb.apache.org" 抄送: 主题: Re: back and considering releasing v0.11 Hi, +1 for Release 0.11 ASAP but I probably like to do the python "makeover" for it a

Re: back and considering releasing v0.11

Hi, +1 for Release 0.11 ASAP but I probably like to do the python "makeover" for it as the current version in 0.10.1 is a bit complicated to use. When do you like to do the release? Julian Am 02.11.20, 11:24 schrieb "Xiangwei Wei" : Hi, +1 :D Jialin Qiao 于2020年11月1日周日

Re: About the timezone in IoTDB

Hi, very good addition, indeed. As one of the first users "far away" from China it was always a bit of math for me to get everything together with default settings (UTC+8?) : ) Julian Am 30.10.20, 02:59 schrieb "Xiangwei Wei" : In the previous design, the timezone was set in IoTDB server

Re: Hello, everyone. I'm Mingming Zhang

, Tsinghua University 乔嘉林 清华大学 软件学院 > -原始邮件- > 发件人: "Julian Feinauer" > 发送时间: 2020-10-27 15:49:08 (星期二) > 收件人: "dev@iotdb.apache.org" > 抄送: > 主题: Re: Hello, everyone. I'm Mingming Zhang > > Hi Mingming,

Re: Hello, everyone. I'm Mingming Zhang

Hi Mingming, cool to have you here and looking forward to the features you may bring : ) @Jialin: Do we have a general setup for using indexes in IoTDB? Julian Am 27.10.20, 05:52 schrieb "Jialin Qiao" : Hi Mingming, Welcome! Similarity search is very important in the IoT scenario.

Re: Refactor Docker Package

Best, --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Julian Feinauer 于2020年10月26日周一 下午8:56写道： > Hi, > > short update. > I uploaded my project also to pypi to make it easy to use Python with

Re: Refactor Docker Package

Hi, short update. I uploaded my project also to pypi to make it easy to use Python with IoTDB Release 0.10.1. You can find the package here: https://pypi.org/project/iotdb-session-0.10.1/ A small example is attached. Julian Am 26.10.20, 11:42 schrieb "Julian Feinauer" :

Refactor Docker Package

Hi folks, currently the Python support (in 0.10.1) is... well... improveable : ) As we started to work with IoTDB in Python I would like to refactor and improve the package in the master branch for the next release. I already created an example (based on 0.10.1) branch which I just pushed to

Re: [DISCUSS] Should we use spark-tsfile or spark-iotdb

Hi, that is very interesting results and indeed I would opt for using iotdb by default. My vision is to enable advanced query optimization and indexing as it is known by RDBMS. Then this could be faster by orders of magnitude if the database has a suitable index. Just my 2 ct : ) Julian Am

Re: Support SDT compression

n Qiao School of Software, Tsinghua University 乔嘉林 清华大学 软件学院 > -原始邮件- > 发件人: "Julian Feinauer" > 发送时间: 2020-10-03 02:09:44 (星期六) > 收件人: "dev@iotdb.apache.org" > 抄送: > 主题: Re: Support SDT compression > > Hi, > > I read the docu

Re: Support SDT compression

Hi, I read the document (which is excellent, good work!) and it sounds very interesting but as far as I understand the algorithm its lossy. Is this true? Or do I miss something? Thanks! Julian Am 29.09.20, 12:04 schrieb "Jialin Qiao" : Hi, Good summary~ > Page header needs to

Re: [VOTE] Graduate Apache IoTDB as TLP

Haonan Hou * Jialin Qiao * Jianmin Wang * Jincheng Sun * Jinrui Zhang * Julian Feinauer * Jun Yuan * Justin Mclean * Kevin A. McGrail * Kun Liu * Lei Rui

Re: Considering lossy encoding/compression?

Hi, another common pattern is just to downsample the datasets (as Influx does it for example). This is technically also a lossless encoding (but not as fancy). Julian Am 09.09.20, 05:09 schrieb "Xiangdong Huang" : Hi, > I know PI has Spinning Door Transformation compress algorithm

Re: [VOTE] Charta and proposal for first VP

+1 (binding) Julian Am 03.09.20, 13:14 schrieb "Dawei Liu" : Hi, +1 Best, Dawei On 09/03/2020 18:57, Julian Feinauer wrote: Hi all, as the discussion in the thread calmed down quite a bit and there was no real controvercy I decided to start a f

[VOTE] Charta and proposal for first VP

Hi all, as the discussion in the thread calmed down quite a bit and there was no real controvercy I decided to start a formal Vote on our Charta and who we want to suggest to the board as initial VP for Apache IoTDB. From the discuss thread

[RESULT][VOTE] Start the graduation process

Hi all, thanks for the many votes that were cast! As 72hrs have passed the vote ends. Results are: 17 +1 Votes from which 12 are binding +1 Votes and 3 +1 votes from our mentors (all mentors voted) Thus, we will continue on with the next steps towards graduation. Thanks once again to all voters

Re: [VOTE] Start the graduation process

周三 下午2:12写道： > My +1 (binding) > It's good to see iotdb is ready to graduate. > > Willem Jiang > > Twitter: willemjiang > Weibo: 姜宁willem > > On Sun, Aug 30, 2020 at 8:46 PM Julian Feinauer > wrote: > > >

Re: [DISCUSS] graduation process: Charter and VP of IoTDB discussion

Hi, thanks for bringing that up. Indeed I think your short proposal is right. Rergarding the VP, I had a short off-list discussion with @Christofer Dutz and we both agreed that it should be someone who speaks Chinese and English as our community is kind of bilingual. Regarding the amount of

AW: Configuring IoTDB when run programatically

Hey Chris, Good idea... What about... A PR? :D Julian Von meinem Mobiltelefon gesendet Ursprüngliche Nachricht Von: Christofer Dutz Datum: So., 30. Aug. 2020, 17:19 An: dev@iotdb.apache.org Betreff: Configuring IoTDB when run programatically Hi all, I’m currently doing my

Re: IoTDB podling report draft - Sepember 2020

Hi, as we already had a discussion about graduation AND I just started a vote about graduation we should just note that in the report, I think. Julian Am 28.08.20, 16:29 schrieb "Dawei Liu" : Hi all, I finished a draft for the report, pls have a review. ## IoTDB IoTDB

[VOTE] Start the graduation process

Hi folks, as we just had a very positive discussion about the maturity of our community [1] I want to formally start the vote if we want to start the graduation process. For Information about our maturity assessment please see [2]. Do you agree that the IoTDB project is ready for graduation

Re: Podling Iotdb Report Reminder - September 2020

Thank you very much Dawei. In fact I directly thought "Probably Dawei could do it, he also writes these nice reports" : ) Thanks! Julian Am 28.08.20, 04:41 schrieb "Dawei Liu" : Hi, I'd like to try write this report. Can someone give me some guidance? Best, ——

Re: Support double quotation in Path and optimize the Path String

Ah thanks. If you knowit ist good! Am 27.08.20, 10:34 schrieb "Boris Zhu" : WeChat Group On Thu, Aug 27, 2020 at 4:30 PM Julian Feinauer < j.feina...@pragmaticminds.de> wrote: > Hi Boris, > > excellent initative! > I also had a disc

Re: Support double quotation in Path and optimize the Path String

Hi Boris, excellent initative! I also had a discussion with @Xiangdong Huang and @Jialin Qiao about that matter. Does one of you remember where we documented our discussion? Julian Am 27.08.20, 05:44 schrieb "Boris Zhu" : Hi I write a pr about using the detached full path instead of

Re: Restart the status monitor module of iotdb

Hi, indeed there is potential for some more modularity (and I think I already added a submodule in that branch). Currently Xiangdong is improving the collected metrics and I would be happy to get this into the master / develop ASAP : ) Julian Am 26.08.20, 08:10 schrieb "Xiangdong Huang" :

Re: [DISCUSS] discuss about graduation of Apache IoTDB (incubating)

> > > > > > On 07/7/2020 15:30，Christofer Dutz wrote： > > I for my part am very happy with the progress the project made. > > > > Taking the amount of "pointing out stuff"-emails (TM) I have to write > > (Which

AW: ApacheCon @Home 2020: Proposal not accepted

Hi friends, I always got confirmation for a talk about our bilingual community and how we all came to work that nicely together. @Giorgio sounds cool! Julian Von meinem Mobiltelefon gesendet Ursprüngliche Nachricht Von: "Kevin A. McGrail" Datum: So., 2. Aug. 2020, 13:41

Re: [VOTE] Apache IoTDB 0.10.1 (incubating) RC1 release

Hi, yes, big thank to Houliang for his finding and good that you cancel the vote. I think its good for the community also to see that it doesn’t matter if you are committer or PMC or just a user who contributes a bit in his spare time to make an impact if you bring up good points! Julian Am

Re: Is there any docs on how to run iotdb on android?

if there are things not clear to you! Julian Am 23.07.20, 10:16 schrieb "Shi Jinghai" : Hi Julian, That’s great. I’ll try the way you mentioned. Kind Regards, 发件人: Julian Feinauer<mailto:j.feina...@pragmaticminds.de> 发送时间: 2020年7月23日 16:06 收件人: dev@iotdb.apach

Re: Is there any docs on how to run iotdb on android?

a tool jar, commons-iotdb? Then the jdk requirement could be removed, right? 发件人: Julian Feinauer<mailto:j.feina...@pragmaticminds.de> 发送时间: 2020年7月23日 15:18 收件人: dev@iotdb.apache.org<mailto:dev@iotdb.apache.org> 主题: Re: Is there any docs on how to run iotdb on android?

Re: Is there any docs on how to run iotdb on android?

Hey, another alternative would be to use plain tsfiles and not the whole IoTDB Stack. This should work out oft he box on android, I think. Julian Am 23.07.20, 09:03 schrieb "Xiangdong Huang" : Hi Jinghai, We just tried Raspberry PI, and did not test on Andorid. This is an

Re: [Discuss] Release of 0.10.1

(星期五) > > 收件人: "dev@iotdb.apache.org" > > 抄送: > > 主题: Re: [Discuss] Release of 0.10.1 > > > > +1. > > > > Seems like many critical bugs has been fixed. I think it’s necessary to > release 0.10.1 now. >

Re: [Discuss] How to delivery the device concept to users

to check whether the file exist in the queried interval. Thanks, -- 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: "Julian Feinauer" > 发送时间: 2020-07-20 17:34:40 (星期一) > 收件人: "dev@iotdb.apache.

Re: Functional design of quoted paths

Hey Xiangwei, that is an excellent suggestion (I discussed the same already with Xiangdong some weeks ago). We mix a bit between Strings and Paths (and even inside paths we use strings and dynamic parsing too often). So it would make sense to mee to follow your suggested approach with clear

Re: [Discuss] How to delivery the device concept to users

Hey Jialin, xinagdong, very good question! And I tend to agree with Xiangdong. If the users do it that way it probably makes most sense for them. The question I would ask is why "devices" hurt us (I know a bit about the implementation of course but probably we have to adopt our datamodel also a

Re: [Discuss] Release of 0.10.1

Release early and often, they say. So you got my +1 : ) Julian Am 17.07.20, 10:13 schrieb "田原" : Hi Jialin, +1. And I make another two improvements that should be included in 0.10.1 * [IOTDB-802] Improve Group By * Change the default fetch size in

Re: [ANNOUNCE] Add Haonan Hou as a new PPMC of IoTDB

Congratulations Haonan also from my side : ) Keep up the good work! Julian Am 17.07.20, 08:18 schrieb "Haonan Hou" : Hi, Thank you everyone for your warm welcome! BR, Haonan Hou > On Jul 17, 2020, at 1:30 PM, Dawei Liu wrote: > > > > Congrats, Haonan!

Re: Courses /Trainings for Open Source Projects

Dawei Liu" : Hi， This website opens very, very slowly on my computer. Can others open it? Best ——— Dawei Liu On 07/5/2020 20:04，Julian Feinauer wrote： Hi folks, as some may have noticed on other lists Chris, myself and some others are starting somethin

Re: [Experiment sharing] How chunk size(number of points) impact the query performance

Hey, very interesting experiment. Did you use something like JMH fort he Benchmark or did you perform it directly? Julian Am 09.07.20, 09:29 schrieb "孙泽嵩" : Hi Jialin, Great experiment! Thanks for your sharing. Looking forward to the function of hot compaction. Best,

Re: Fetch query result iteratively to avoid OOM

Hi Jialin, this is a very good point, indeed. I remember in Calcite there was the Linq4j Module which was based on an extension of an "Iterable / Iterator" which was basically Lazy Loading / Computation. This object was assembled throughout the query and finally given to the Servers handler

Re: [DISCUSS] discuss about graduation of Apache IoTDB (incubating)

Hi, thanks for your feedback Justin and I would also be very interested in hearing your opinion on the maturity. As I'm no mentor and pretty involved in the community know I feel that the community is mature enough but as with every young project, there are always things to improve. But I

Courses /Trainings for Open Source Projects

Hi folks, as some may have noticed on other lists Chris, myself and some others are starting something together (and also with other Partners from the community!). The project is called https://industrial-opensource.com and we try to form a network of (I)IoT experts from different Open Source

Re: refactor the modules (for thrift and antlr code generation)

can postpone the discussion about the replacement after the cluster module is merged... It will be a disaster if we do that now. Best, --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Julian Feinauer 于202

Re: refactor the modules (for thrift and antlr code generation)

Hi, we could also consider migrating to protobuf and grpc then as I like their maven plugin and it really works flawlessly (and downloads the protoc automagically). But I would also be fine with extracting it. Julian Am 29.06.20, 08:30 schrieb "Xiangdong Huang" : Hi, I suffer from

Re: [discuss] Apache IoTDB 0.10.0 (incubating) RC4 release

Hi, I think virtual keysigning is possible if there is some kind of trust. I, for example, would feel comfortable enough to sign a key from people I know via a Websession. If official documents are prepared and scanned it can be done. In the end, everybody has to decide which key he wants to

Re: [VOTE] Apache IoTDB 0.10.0 (incubating) RC4 release

Hi all, my Vote is +1 (binding PPMC Vote and IPMC Vote), I did: - Checked Signature and Hashes - Extracted the archive - Checked LICENSE, NOTICE, README and RELEASE_NOTES and ist content - No unexpected binaries - No Snapshot Dependencies - Compiled sources according to README - Run `mvn clean

Re: [Discuss][Mentors pay attention] Maturity Evaluation of IoTDB

Hi all, I am no mentor ut answer here as PPMC and IPMC member. I think the project has done HUGE progress and I personally am happy and a bit surprised on how good and fast we got the PPMC into the right mindset (at least the active part oft he PPMC as in many podlings). There still are issues

Re: [IOTDB-726] CheckPoint of MTree

清华大学 软件学院 Julian Feinauer 于2020年6月19日周五 下午4:54写道： > Another thing we could consider is to chunk them according to their > namespaces in folders / files or any other struct. Then we could > efficiently do lazy loading and only pick what we really need. > > W

Re: [IOTDB-726] CheckPoint of MTree

> > Let me try and do experiments to get the best result : ) > > Best, > --- > Zesong Sun > School of Software, Tsinghua University > > 孙泽嵩 > 清华大学 软件学院 > > > 2020年6月19日 14:14，Julian F

Re: [IOTDB-726] CheckPoint of MTree

_ From: Julian Feinauer Sent: Friday, June 19, 2020 8:11:56 AM To: dev@iotdb.apache.org Subject: Re: [IOTDB-726] CheckPoint of MTree What about using some kind of cache that spills to disk. That way we would be up in no time and just lazy load devices when needed. I remember that eh cac

Re: [IOTDB-726] CheckPoint of MTree

che.org >>> 抄送: >>> 主题: Re: [IOTDB-726] CheckPoint of MTree >>> >>> Hi Julian, >>> >>> Currently I’m just using plain text file. >>> >>> But I could consider and try with RocksDB : ) >>> I also noticed that there is an is

Re: Using Sync Tool with IoTDB Server

er with JUnit and TravisCI? Best, --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Julian Feinauer 于2020年6月17日周三 下午3:28写道： > Probabl.y we could try to set up integration tests fort hat.

Re: Using Sync Tool with IoTDB Server

t; synchronized first, so the schema of each tsfile transmitted is guaranteed > > to exist. > > Synchronous schema adopts incremental method. > > > > > > Best Regards, > > — > > Tianan Li > > School of Sof

Re: [IOTDB-726] CheckPoint of MTree

Best, --- Zesong Sun School of Software, Tsinghua University 孙泽嵩 清华大学 软件学院 > 2020年6月15日 19:00，Julian Feinauer 写道： > > Hi Zesong, > > this is an excellent Idea! > Do you serialize the snapshot as plain text file? > Or would

Re: [IOTDB-726] CheckPoint of MTree

Hi Zesong, this is an excellent Idea! Do you serialize the snapshot as plain text file? Or would it make sense to use something like RocksDB for something like that? Julian Am 15.06.20, 12:12 schrieb "孙泽嵩" : Greetings, I’m currently working on issue [IOTDB-726] CheckPoint of MTree

Using Sync Tool with IoTDB Server

Hi folks, just a short question regarding the Sync Tool from IoTDB. If I have a plain tsfile that I sync via the sync tool to the server are then all names from the timeseries picked automatically and entered in the MTree and all? Or do I have to configure something upfront? Thanks! Julian

Re: JSON Input for IoTDB

will the users query the array? Will the query like "select array[1] from root.sg.d" or "select array from root.sg.d"? Thanks, -- 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: "Julian Fei

Re: [Discuss]A demo site running iotdb

Hi, I think this ist he best way for sure. In the meantime or if this does now work out I can also offer to provide ressources from our company, if needed. Julian Am 11.06.20, 08:28 schrieb "Justin Mclean" : Hi, > We have applied a VM already. iotdb-vm.apache.org. Excellent

JSON Input for IoTDB

Hi folks, I already created Issue https://issues.apache.org/jira/browse/IOTDB-742 in this direction but wanted to discuss a topic. Since it is now possible to have measurements and devices below a measurement we could do a pretty one to one mapping between JSON (or other strucuted data) and

Re: [Discuss] Release of 0.10.0

[1] https://github.com/apache/incubator-iotdb/pull/1169 Best, --- Xiangdong Huang School of Software, Tsinghua University 黄向东 清华大学 软件学院 Julian Feinauer 于2020年5月18日周一 下午6:44写道： > Hey, > > that looks pretty cool indeed.

Re: Demo web site proposal.

Hi Giorgio, this is indeed a neat idea... let me have a look later perhaps we can package everything together with a ready to use Grafana Dashboard. Will try to have a look this evening (CEST). Julian Am 18.05.20, 16:13 schrieb "Giorgio Zoppi" : Hi all, I have seen the current demo

Re: [Discuss] Release of 0.10.0

Hey, that looks pretty cool indeed. Has anyone tested the IoTDB Grafana Bridge? I had issues with it at some point in master branch, not sure about the latest version? But sounds really cool! Julian Am 18.05.20, 12:08 schrieb "Haonan Hou" : Hi, Right now the upgrade tool for

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