Stand-Alone Deployment

About 6 min

Stand-Alone Deployment

This chapter will introduce how to start an IoTDB standalone instance, which includes 1 ConfigNode and 1 DataNode (commonly known as 1C1D).

Matters Needing Attention

Before installation, ensure that the system is complete by referring to System configuration.
It is recommended to prioritize using 'hostname' for IP configuration during deployment, which can avoid the problem of modifying the host IP in the later stage and causing the database to fail to start. To set the host name, you need to configure/etc/hosts on the target server. For example, if the local IP is 192.168.1.3 and the host name is iotdb-1, you can use the following command to set the server's host name and configure IoTDB's' cn_internal-address' using the host name dn_internal_address、dn_rpc_address。
```
echo "192.168.1.3  iotdb-1" >> /etc/hosts 
```
Some parameters cannot be modified after the first startup. Please refer to the "Parameter Configuration" section below for settings.
Whether in linux or windows, ensure that the IoTDB installation path does not contain Spaces and Chinese characters to avoid software exceptions.
Please note that when installing and deploying IoTDB (including activating and using software), it is necessary to use the same user for operations. You can:

Using root user (recommended): Using root user can avoid issues such as permissions.
Using a fixed non root user:
- Using the same user operation: Ensure that the same user is used for start, activation, stop, and other operations, and do not switch users.
- Avoid using sudo: Try to avoid using sudo commands as they execute commands with root privileges, which may cause confusion or security issues.

It is recommended to deploy a monitoring panel, which can monitor important operational indicators and keep track of database operation status at any time. The monitoring panel can be obtained by contacting the business department, and the steps for deploying the monitoring panel can be referred to：Monitoring Board Install and Deploy.

Installation Steps

1、Unzip the installation package and enter the installation directory

unzip  iotdb-enterprise-{version}-bin.zip
cd  iotdb-enterprise-{version}-bin

2、Parameter Configuration

Environment Script Configuration

./conf/confignode-env.sh (./conf/confignode-env.bat) configuration

Configuration	Description	Default	Recommended value	Note
MEMORY_SIZE	The total amount of memory that IoTDB ConfigNode nodes can use	empty	Can be filled in as needed, and the system will allocate memory based on the filled in values	Restarting the service takes effect

./conf/datanode-env.sh (./conf/datanode-env.bat) configuration

Configuration	Description	Default	Recommended value	Note
MEMORY_SIZE	The total amount of memory that IoTDB DataNode nodes can use	empty	Can be filled in as needed, and the system will allocate memory based on the filled in values	Restarting the service takes effect

System General Configuration

Open the general configuration file (./conf/iotdb-system. properties file) and set the following parameters:

Configuration	Description	Default	Recommended value	Note
cluster_name	Cluster Name	defaultCluster	The cluster name can be set as needed, and if there are no special needs, the default can be kept	Cannot be modified after initial startup
schema_replication_factor	Number of metadata replicas, set to 1 for the standalone version here	1	1	Default 1, cannot be modified after the first startup
data_replication_factor	Number of data replicas, set to 1 for the standalone version here	1	1	Default 1, cannot be modified after the first startup

ConfigNode Configuration

Open the ConfigNode configuration file (./conf/iotdb-system. properties file) and set the following parameters:

Configuration	Description	Default	Recommended value	Note
cn_internal_address	The address used by ConfigNode for communication within the cluster	127.0.0.1	The IPV4 address or host name of the server where it is located, and it is recommended to use host name	Cannot be modified after initial startup
cn_internal_port	The port used by ConfigNode for communication within the cluster	10710	10710	Cannot be modified after initial startup
cn_consensus_port	The port used for ConfigNode replica group consensus protocol communication	10720	10720	Cannot be modified after initial startup
cn_seed_config_node	The address of the ConfigNode that the node connects to when registering to join the cluster, cn_internal_address:cn_internal_port	127.0.0.1:10710	cn_internal_address:cn_internal_port	Cannot be modified after initial startup

DataNode Configuration

Open the DataNode configuration file (./conf/iotdb-system. properties file) and set the following parameters:

Configuration	Description	Default	Recommended value	Note
dn_rpc_address	The address of the client RPC service	0.0.0.0	The IPV4 address or host name of the server where it is located, and it is recommended to use host name	Restarting the service takes effect
dn_rpc_port	The port of the client RPC service	6667	6667	Restarting the service takes effect
dn_internal_address	The address used by DataNode for communication within the cluster	127.0.0.1	The IPV4 address or host name of the server where it is located, and it is recommended to use host name	Cannot be modified after initial startup
dn_internal_port	The port used by DataNode for communication within the cluster	10730	10730	Cannot be modified after initial startup
dn_mpp_data_exchange_port	The port used by DataNode to receive data streams	10740	10740	Cannot be modified after initial startup
dn_data_region_consensus_port	The port used by DataNode for data replica consensus protocol communication	10750	10750	Cannot be modified after initial startup
dn_schema_region_consensus_port	The port used by DataNode for metadata replica consensus protocol communication	10760	10760	Cannot be modified after initial startup
dn_seed_config_node	The ConfigNode address that the node connects to when registering to join the cluster, i.e. cn_internal-address: cn_internal_port	127.0.0.1:10710	cn_internal_address:cn_internal_port	Cannot be modified after initial startup

❗️Attention: Editors such as VSCode Remote do not have automatic configuration saving function. Please ensure that the modified files are saved persistently, otherwise the configuration items will not take effect

3、Start ConfigNode

Enter the sbin directory of iotdb and start confignode

./start-confignode.sh    -d      #The "- d" parameter will start in the background

If the startup fails, please refer to Common Questions.

4、Activate Database

Method 1: Activate file copy activation

After starting the confignode node, enter the activation folder and copy the systeminfo file to the Timecho staff
Received the license file returned by the staff
Place the license file in the activation folder of the corresponding node;

Method 2: Activate Script Activation

Obtain the required machine code for activation, enter the sbin directory of the installation directory, and execute the activation script:

 cd sbin
./start-activate.sh

The following information is displayed. Please copy the machine code (i.e. the string of characters) to the Timecho staff:

Please copy the system_info's content and send it to Timecho:
01-KU5LDFFN-PNBEHDRH
Please enter license:

Enter the activation code returned by the staff into the previous command line prompt 'Please enter license:', as shown below:

Please enter license:
JJw+MmF+AtexsfgNGOFgTm83Bxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxm6pF+APW1CiXLTSijK9Qh3nsLgzrW8OJPh26Vl6ljKUpCvpTiw==
License has been stored to sbin/../activation/license
Import completed. Please start cluster and excute 'show cluster' to verify activation status

5、Start DataNode

Enter the sbin directory of iotdb and start datanode:

cd sbin
./start-datanode.sh   -d   # The "- d" parameter will start in the background

6、Verify Deployment

Can be executed directly/ Cli startup script in sbin directory:

./start-cli.sh  -h  ip(local IP or domain name)  -p  port(6667)

After successful startup, the following interface will appear displaying successful installation of IOTDB.

After the installation success interface appears, continue to check if the activation is successful and use the show clustercommand

When you see the display "Activated" on the far right, it indicates successful activation

The appearance of 'Activated (W)' indicates passive activation, indicating that this Config Node does not have a license file (or has not issued the latest license file with a timestamp). At this point, it is recommended to check if the license file has been placed in the license folder. If not, please place the license file. If a license file already exists, it may be due to inconsistency between the license file of this node and the information of other nodes. Please contact Timecho staff to reapply.

Common Problem

Multiple prompts indicating activation failure during deployment process
- Use the ls -al command: Use the ls -al command to check if the owner information of the installation package root directory is the current user.
- Check activation directory: Check all files in the ./activation directory and whether the owner information is the current user.
Confignode failed to start
Step 1: Please check the startup log to see if any parameters that cannot be changed after the first startup have been modified.
Step 2: Please check the startup log for any other abnormalities. If there are any abnormal phenomena in the log, please contact Timecho Technical Support personnel for consultation on solutions.
Step 3: If it is the first deployment or data can be deleted, you can also clean up the environment according to the following steps, redeploy, and restart.
Clean up the environment:
Execute the following on all nodes:
1. Terminate all ConfigNode Node and DataNode processes.
```
  # 1. Stop the ConfigNode and DataNode services
  sbin/stop-standalone.sh

  # 2. Check for any remaining processes
  jps
  # Or
  ps -ef|gerp iotdb

  # 3. If there are any remaining processes, manually kill the
  kill -9 <pid>
  # If you are sure there is only one iotdb on the machine, you can use the following command to clean up residual processes
  ps -ef|grep iotdb|grep -v grep|tr -s '  ' ' ' |cut -d ' ' -f2|xargs kill -9
```
1. Delete the data and logs directories.
Explanation: Deleting the data directory is necessary, deleting the logs directory is for clean logs and is not mandatory.
```
  cd /data/iotdb
  rm -rf data logs
```