Re: Change default time partition interval from 1 day to 1 week

2022-10-10 Thread Haiming Zhu
Dear Qingxin Feng, The benefit is that time partition can help us isolate data by time. We change it back to 7 days because we find some problems when using 1 day. To conclude it, "too small is bad, how big depends on user needs". Best, -------- Haiming Zhu

Re: Change default time partition interval from 1 day to 1 week

2022-10-10 Thread Haiming Zhu
gnode snapshot frequently. Best, Haiming Zhu 冯 庆新 于2022年10月10日周一 17:46写道: > Hi, > But “enable_partition” is still “false”,right? According to this it > doesn't affect anyone who using default value in > ‘iotdb-datanode.properties’ to us

Change default time partition interval from 1 day to 1 week

2022-10-10 Thread Haiming Zhu
Hi, We want to change default time partition interval from 1 day to 1 week, including time_partition_interval_for_routing in the confignode and time_partition_interval_for_storage in the datanode. Best, Haiming Zhu

Modify set system status command syntax

2022-08-29 Thread Haiming Zhu
entire cluster by default. > set system to readonly on local set system to readonly on cluster Best, ---- Haiming Zhu School of Software, Tsinghua University

Re: [Discuss] enlarge default value of avg_series_point_number_threhold

2022-05-17 Thread Haiming Zhu
and the number of storage groups should be considered for parameter memtable_size_threshold. Besides, it is an interesting and challenging issue to manage high frequency time series and low frequency time series, hot data and cold data. Best, Haiming Zhu Haonan Hou 于2022年5月17日周二 14:46写道

Change semantics of TsFile filename

2022-05-09 Thread Haiming Zhu
e the same file_created_time, then we use version_id to guarantee the order. This semantics change may afftect query, compaction and load module. Hope for some suggestions. Best, Haiming Zhu School of Software, Tsinghua University 朱海铭 清华大学 软件学院

New WAL Design

2021-12-02 Thread Haiming Zhu
Hi everyone, I have finished the design of new WAL, here is the doc : https://cwiki.apache.org/confluence/x/2YqqCw. If you have any questions please let me know. Best, Haiming Zhu School of Software, Tsinghua University 朱海铭 清华大学 软件学院

Re: Enable wiki in Github

2021-09-22 Thread Haiming Zhu
Hi, +1 :) Best, Haiming Zhu School of Software, Tsinghua University 朱海铭 清华大学 软件学院 钟文豪 于2021年9月23日周四 上午9:45写道: > Hi, > +1 > Thanks.zhongwenhao > > > > > > At 2021-09-21 21:26:21, "Xiangdong Huang&quo

Discuss how to rename MOVE operator

2021-08-29 Thread Haiming Zhu
, Haiming Zhu School of Software, Tsinghua University 朱海铭 清华大学 软件学院

Discuss delete storage group SQL statement

2021-08-27 Thread Haiming Zhu
operations may create a new TsFileProcessor in the interval, making this delete statement incorrect. So, we need a ReentrantReadWriteLock to lock processorMap. Best, ------------ Haiming Zhu School of Software, Tsinghua University 朱海铭 清华大学 软件学院

Discuss delete storage group SQL statement

2021-08-27 Thread Haiming Zhu
operations may create a new TsFileProcessor in the interval, making this delete statement incorrect. So, we need a ReentrantReadWriteLock to lock processorMap. Best, ------------ Haiming Zhu School of Software, Tsinghua University 朱海铭 清华大学 软件学院

Re: Timed flush memtable and timed close TsFileProcessor

2021-08-19 Thread Haiming Zhu
hanks, ?? Haiming Zhu   --  -- ??:

Re: Timed flush memtable and timed close TsFileProcessor

2021-08-19 Thread Haiming Zhu
hanks, ?? Haiming Zhu --  -- ??:

Timed flush memtable and timed close TsFileProcessor

2021-08-16 Thread Haiming Zhu
 https://issues.apache.org/jira/projects/IOTDB/issues/IOTDB-1496 [2] https://issues.apache.org/jira/projects/IOTDB/issues/IOTDB-1569 Thanks, ?????? Haiming Zhu