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Questions tagged [apache-iotdb]

Questions related to the Apache IoTDB Project (https://iotdb.apache.org/). Apache IoTDB (Database for Internet of Things) is an IoT native database with high performance for data management and analysis, deployable on the edge and the cloud.

The Project itself states (see https://iotdb.apache.org/)

Apache IoTDB (Database for Internet of Things) is an IoT native database with high performance for data management and analysis, deployable on the edge and the cloud. Due to its light-weight architecture, high performance and rich feature set together with its deep integration with Apache Hadoop, Spark and Flink, Apache IoTDB can meet the requirements of massive data storage, high-speed data ingestion and complex data analysis in the IoT industrial fields.

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Why Apache IoTDB cannot be connected locally while the access of public network can be executed normally?

Now, my Apache IoTDB server (Version 1.1.0 standalone) is deployed on cloud using docker, and IoTDB can be used when access to the ip of public network connection inside the server. Howver, IoTDB cannot be connected locally when the port is open.…
zai
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How to deal with insertRecord failed error when server can still be executed in Apache IoTDB Version 1.1.0?

I got this error reported in docker version 1.1.0 of Apache IoTDB, and I checked that there are still enough server resources. I don't know why this error popped out. The error information is: 301: [EXECUTE_STATEMENT_ERROR(301)] Exception occurred:…
Monster Zhang
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Why Apache IoTDB Version 1.0.1 reported 305 code error on Ratis consensus?

When I tried to execute Apache IoTDB V1.0.1, a 305 code error appeared, and the message is cannot fetch schema, status is: 301, msg is: Execute FragmentInstance failed: Ratis request failed. I only know that Ratis consensus can be supported in…
zlyf
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How to transfer to ip address other than virtual ip to start Apache IoTDB?

Every time I started Apache IoTDB, the virtual ip (127.0.0.1) is displayed. If I want to enter IoTDB through other ip accounts, how can I do this? I tried the official guide tutorial, use the startup command: shell > sbin\start-cli.bat -h…
NKZ
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What may be done to control the creation of small files under /udf/tmp when created a new UDF in Apache IoTDB V1.1.1?

I have customized a UDF in Apache IoTDB Version 1.1.1. After I ran this UDF, I found that many small files are generated under /udf/tmp directory. This may affect the efficiency of server operation, so I want to know what method can control the…
Hester Tso
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How to recover the data stored under the root structure that are deactivated in Apache IoTDB?

I encountered a problem in Apache IoTDB. When I tried to execute deactivate schema template met from root.met.*, the data stored under the root.met.* are gone and cannot be queried. How can I recover these data?
zai
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How to query the devices which data has been updated for the last hour in Apache IoTDB?

I currently use Version 1.1 of Apache IoTDB, and I need to find the recent data updated in the server. I wonder how to query the devices which data has been updated in the last hour in IoTDB? How should I write the query statement?
Sihan Liu
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After starting Apache IoTDB, how to change admin_password?

I am currently setting Apache IoTDB for the first time, and found that admin_password need to be set for the admin role. Since this admin role may need to be change to different people in my situation, I want to ask can I modify this password,…
Monster Zhang
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How to store time series data in JSON string form to Apache IoTDB?

For JSON string kinds of data (which contains multiple time-series values), how should I store this data into Apache IoTDB? Should it be split into different time series, or can it be stored as one string (when queried, the entire JSON is queried as…
shuww
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Why read-only permission account in Apache IoTDB received "no permission" when checking aligned data by device?

In Apache IoTDB Version 0.13.2, when using the account with read-only permission to use align by device and the server prompted no permission. I checked and don't know how can I fix this problem while the account is already read-only permission.…
zlyf
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How to preset parameters that are not time related into time series for Apache IoTDB?

How do you preset time-independent properties for devices that record time-series data in Apache IoTDB? Such as attributes like serial number, warning water level, jurisdiction area etc. I think these data would not be changed and the type of data…
NKZ
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Updating specific property for a time series in IoTDB while retaining other properties' previous values

I am using IoTDB, a time-series database, to store data from various vehicles. Each vehicle has multiple properties such as charge_level, speed, temperature, location, etc., stored in separate time series under the path root.vehicle.. I…
Utkarsh Kumar
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How to make sure that the time series are already created before saving data in Apache IoTDB?

I am trying to learn the process of writing and storing data into Apache IoTDB, and I have a question. Before I stored data in IoTDB, I want to make sure that the time series are already created. I want to know how to ensure that the time series…
zai
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How to set role in Apache IoTDB to have permission to manage all time series?

I am now learning the permission settings of Apache IoTDB and I know that IoTDB can set user role to manage different time series. I wonder can IoTDB create a user with permissions of all time series rather than one time series? If IoTDB can do…
Sihan Liu
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How to package dependencies with snapshots for Apache IoTDB Version 1.1.0?

When I tried to package dependencies for Apache IoTDB V1.1.0 locally, I received an error: Could not resolve dependencies for project org.apache.iotdb:iotdb-consensus:jar:1.1.0: The following artifacts could not be resolved:…
user22177617
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