Share some experiment results about Gorilla encoding algorithm

2020-10-10 Thread Steve Su
Hi, Recently, we realized that the Gorilla encoding algorithm that has been used inside IoTDB may have some issues, because it will cause time series data (the value part) to become more space-consuming after encoding. This is not in line with expectations. Usually after using Gorilla encoding,

Re: Share some experiment results about Gorilla encoding algorithm

2020-10-10 Thread Xiangdong Huang
Hi, Nice! One question. So, if we reimplement the Gorilla algorithm, how to consider the version compatibility? 1. Upgrade the TsFile version to 03, or 2. Add a new encoding name to the corrected gorilla. Best, --- Xiangdong Huang School of Software, Tsinghua

Re: Share some experiment results about Gorilla encoding algorithm

2020-10-10 Thread Jialin Qiao
gdong Huang" > 发送时间: 2020-10-10 23:35:31 (星期六) > 收件人: dev > 抄送: > 主题: Re: Share some experiment results about Gorilla encoding algorithm > > Hi, > > Nice! > > One question. So, if we reimplement the Gorilla algorithm, how to consider > the version compatibil

Re: Share some experiment results about Gorilla encoding algorithm

2020-10-11 Thread Steve Su
??) 11:35 ??: "dev"; ????: Re: Share some experiment results about Gorilla encoding algorithm Hi, Nice! One question. So, if we reimplement the Gorilla algorithm, how to consider the version compatibility? 1. Upgrade the TsFile version to 03, or 2. Add a new encoding n

Re: Share some experiment results about Gorilla encoding algorithm

2020-10-11 Thread Xiangdong Huang
uot; ; > 发送时间: 2020年10月10日(星期六) 晚上11:35 > 收件人: "dev"; > 主题: Re: Share some experiment results about Gorilla encoding algorithm > > Hi, > > Nice! > > One question. So, if we reimplement the Gorilla algorithm, how to consider > the version compatibilit

Re: Share some experiment results about Gorilla encoding algorithm

2020-10-11 Thread Jialin Qiao
10-11 23:52:55 (星期日) > 收件人: dev > 抄送: > 主题: Re: Share some experiment results about Gorilla encoding algorithm > > Hi, > > From my point of view, since the reimplementation of this algorithm does not > change the structure of TsFile, there is no need to upgrade the version

Re: Share some experiment results about Gorilla encoding algorithm

2020-10-11 Thread Christofer Dutz
Gesendet: Montag, 12. Oktober 2020 08:32 An: dev@iotdb.apache.org Betreff: Re: Share some experiment results about Gorilla encoding algorithm Hi, Maintaining two versions of gorilla encoding is ok. Could we change the default time encoding from TS2_DIFF to Gorilla and keep compatible? Thanks, -- Jialin Q

Re: Share some experiment results about Gorilla encoding algorithm

2020-10-11 Thread Jialin Qiao
Hi, +1 for version number :) 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: "Christofer Dutz" > 发送时间: 2020-10-12 14:38:34 (星期一) > 收件人: "dev@iotdb.apache.org" > 抄送: > 主题: Re: Share some experiment re

Re: Share some experiment results about Gorilla encoding algorithm

2020-10-11 Thread Haonan Hou
:) > > 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: "Christofer Dutz" >> 发送时间: 2020-10-12 14:38:34 (星期一) >> 收件人: "dev@iotdb.apache.org" >> 抄送: >

Re: Share some experiment results about Gorilla encoding algorithm

2020-10-12 Thread Steve Su
. Steve Su -- -- ??: "dev" ; : 2020??10??12??(??) 2:52 ??: "dev-iotdb"; ????: Re: Share some experiment results about Gorilla encoding algorithm Hi, Version number +1 When I was doing the tsfile upgrading module

Re: Share some experiment results about Gorilla encoding algorithm

2020-10-12 Thread Steve Su
sed on Michael's implementation and name the two encodings TS2_DIFF_V1 and TS2_DIFF_V2. Steve Su -- -- ??: "dev" ; : 2020??10??12??(??) 2:32 ??: "dev"; ????: Re: Share some experiment results about Gorilla encod