[jira] [Created] (IOTDB-1394) Time series statistics API for UDTF
Steve Yurong Su created IOTDB-1394: -- Summary: Time series statistics API for UDTF Key: IOTDB-1394 URL: https://issues.apache.org/jira/browse/IOTDB-1394 Project: Apache IoTDB Issue Type: Sub-task Reporter: Steve Yurong Su In the eval process of many UDTFs, the statistical information (avg, max, min, count ...) of the time series needs to be known in advance. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Created] (IOTDB-1393) Request timed out when create time series
LuMing created IOTDB-1393: - Summary: Request timed out when create time series Key: IOTDB-1393 URL: https://issues.apache.org/jira/browse/IOTDB-1393 Project: Apache IoTDB Issue Type: Bug Components: Cluster Affects Versions: 0.12.0 Reporter: LuMing # client connected # execute statement CREATE TIMESERIES root.devices.wf03.wt01.ts0 WITH DATATYPE=BOOLEAN, ENCODING=PLAIN, compression=UNCOMPRESSED create timeseries root.devices.wf03.wt01.ts1(elec_meter) with datatype=INT32, encoding=RLE, compression=SNAPPY,MAX_POINT_NUMBER=3 tags(tag1=t1, tag2=t2) attributes(attr1=a1, attr2=a2) create timeseries root.devices.wf03.wt01.ts2 with datatype=INT64, encoding=RLE, compression=LZ4 tags(tag1=t1, tag2=t2) attributes(attr1=a1, attr2=a2)3.result 3. result !https://clouddevops.huawei.com/vision-file-storage/api/file/download/upload-v2/2021/4/18/z00293891/8ccad779814e46faaadc92ad27397141/image.png! 4. log file is attached -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Created] (IOTDB-1392) Memory declaration API for UDF
Steve Yurong Su created IOTDB-1392: -- Summary: Memory declaration API for UDF Key: IOTDB-1392 URL: https://issues.apache.org/jira/browse/IOTDB-1392 Project: Apache IoTDB Issue Type: Sub-task Reporter: Steve Yurong Su In some common function evaluation scenarios, it may be required to cache all the original data in the memory, which may cause OOM. Obviously, the system software should not allow such behavior. We should provide a set of API (for example, used to apply for an array with memory control) for user to declare memory usage. If the declared memory usage is higher than the limit, we should reject the UDF evaluation and then throw an exception. -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Created] (IOTDB-1391) Add a new Aggregation function ext
Jialin Qiao created IOTDB-1391: -- Summary: Add a new Aggregation function ext Key: IOTDB-1391 URL: https://issues.apache.org/jira/browse/IOTDB-1391 Project: Apache IoTDB Issue Type: New Feature Reporter: Jialin Qiao Add a new aggregation function: ext Return the value that has the maximum absolute value. If the maximum absolute value of a positive value and a negative value is equal, return the positive value. For example: time：1，2，3，4，5 value：1，10，-4，3，4 select ext(s1) from root.sg.d where time >=1 and time <=5 return 10 select ext(s1) from root.sg.d where time >=3 and time <=4 return -4 select ext(s1) from root.sg.d where time >=3 and time <=5 return 4 -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Created] (IOTDB-1390) Unseq compaction loss data in seq file
张凌哲 created IOTDB-1390:
--
Summary: Unseq compaction loss data in seq file
Key: IOTDB-1390
URL: https://issues.apache.org/jira/browse/IOTDB-1390
Project: Apache IoTDB
Issue Type: Bug
Components: Compaction
Reporter: 张凌哲
Fix For: master branch, 0.11.4, 0.12.1
set compaction_strategy = LEVEL_COMPACTION
use the `data` to recover the IoTDB. After Recovery, it will merge the unseq
data automatically. After unseq compaction, the data of some sensor in seq file
loss.
use the following SQL to check data status before and after unseq compaction.
{code:java}
select Channel96 from root.*.J053102.T034.V1 where time >= 2021-05-18 22:32:27
and time <= 2021-05-18 22:32:37;
{code}
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