LTS

    Innovation Version

      Installation and Deployment

      This chapter describes how to install and deploy A-Tune.

      Software and Hardware Requirements

      Hardware Requirement

      • Huawei Kunpeng 920 processor

      Software Requirement

      • OS: openEuler 22.03 LTS SP2

      Environment Preparation

      • For details about installing an openEuler OS, see the openEuler 22.03 LTS SP2 Installation Guide.
      • Root permissions are required for installing A-Tune.

      A-Tune Installation

      This section describes the installation modes and methods of A-Tune.

      Installation Modes

      A-Tune can be installed in single-node and distributed modes.

      • Single-node mode

        The client and server are installed on the same system.

      • Distributed mode

        The client and server are installed on different systems.

      The installation modes are as follows:

      Installation Procedure

      To install A-Tune, perform the following steps:

      1. Mount an openEuler ISO image.

        mount openEuler-22.03-LTS-SP2-aarch64-dvd.iso /mnt
        
      2. Configure the local Yum source.

        vim /etc/yum.repos.d/local.repo
        

        The configured contents are as follows:

        [local]
        name=local
        baseurl=file:///mnt
        gpgcheck=1
        enabled=1
        
      3. Import the GPG public key of the RPM digital signature to the system.

        rpm --import /mnt/RPM-GPG-KEY-openEuler
        
      4. Install an A-Tune server.

        NOTE: In this step, both the server and client software packages are installed. For the single-node deployment, skip Step 5.

        yum install atune -y
        yum install atune-engine -y
        
      5. For a distributed mode, install an A-Tune client on associated server.

        yum install atune-client -y
        
      6. Check whether the installation is successful.

        $ rpm -qa | grep atune
        atune-client-xxx
        atune-db-xxx
        atune-xxx
        atune-engine-xxx
        

        If the preceding information is displayed, the installation is successful.

      A-Tune Deployment

      This section describes how to deploy A-Tune.

      Overview

      The configuration items in the A-Tune configuration file /etc/atuned/atuned.cnf are described as follows:

      • A-Tune service startup configuration (modify the parameter values as required).

        • protocol: Protocol used by the gRPC service. The value can be unix or tcp. unix indicates the local socket communication mode, and tcp indicates the socket listening port mode. The default value is unix.
        • address: Listening IP address of the gRPC service. The default value is unix socket. If the gRPC service is deployed in distributed mode, change the value to the listening IP address.
        • port: Listening port of the gRPC server. The value ranges from 0 to 65535. If protocol is set to unix, you do not need to set this parameter.
        • connect: IP address list of the nodes where the A-Tune is located when the A-Tune is deployed in a cluster. IP addresses are separated by commas (,).
        • rest_host: Listening address of the REST service. The default value is localhost.
        • rest_port: Listening port of the REST service. The value ranges from 0 to 65535. The default value is 8383.
        • engine_host: IP address for connecting to the A-Tune engine service of the system.
        • engine_port: Port for connecting to the A-Tune engine service of the system.
        • sample_num: Number of samples collected when the system executes the analysis process. The default value is 20.
        • interval: Interval for collecting samples when the system executes the analysis process. The default value is 5s.
        • grpc_tls: Indicates whether to enable SSL/TLS certificate verification for the gRPC service. By default, this function is disabled. After grpc_tls is enabled, you need to set the following environment variables before running the atune-adm command to communicate with the server:
          • export ATUNE_TLS=yes
          • export ATUNED_CACERT=
          • export ATUNED_CLIENTCERT=
          • export ATUNED_CLIENTKEY=
          • export ATUNED_SERVERCN=server
        • tlsservercafile: Path of the gPRC server's CA certificate.
        • tlsservercertfile: Path of the gPRC server certificate.
        • tlsserverkeyfile: Path of the gPRC server key.
        • rest_tls: Indicates whether to enable SSL/TLS certificate verification for the REST service. This function is enabled by default.
        • tlsrestcacertfile: Path of the server's CA certificate of the REST service.
        • tlsrestservercertfile: Path of the server certificate of the REST service.
        • tlsrestserverkeyfile: Indicates the key path of the REST service.
        • engine_tls: Indicates whether to enable SSL/TLS certificate verification for the A-Tune engine service. This function is enabled by default..
        • tlsenginecacertfile: Path of the client CA certificate of the A-Tune engine service.
        • tlsengineclientcertfile: Client certificate path of the A-Tune engine service.
        • tlsengineclientkeyfile: Client key path of the A-Tune engine service.
      • System information

        System is the parameter information required for system optimization. You must modify the parameter information according to the actual situation.

        • disk: Disk information to be collected during the analysis process or specified disk during disk optimization.
        • network: NIC information to be collected during the analysis process or specified NIC during NIC optimization.
        • user: User name used for ulimit optimization. Currently, only the user root is supported.
      • Log information

        Change the log level as required. The default log level is info. Log information is recorded in the /var/log/messages file.

      • Monitor information

        Hardware information that is collected by default when the system is started.

      • Tuning information

        Tuning is the parameter information required for offline tuning.

        • noise: Evaluation value of Gaussian noise.
        • sel_feature: Indicates whether to enable the function of generating the importance ranking of offline tuning parameters. By default, this function is disabled.

      Example

      #################################### server ############################### 
       # atuned config 
       [server] 
       # the protocol grpc server running on 
       # ranges: unix or tcp 
       protocol = unix 
      
       # the address that the grpc server to bind to
       # default is unix socket /var/run/atuned/atuned.sock
       # ranges: /var/run/atuned/atuned.sock or ip address
       address = /var/run/atuned/atuned.sock 
      
       # the atune nodes in cluster mode, separated by commas
       # it is valid when protocol is tcp
       # connect = ip01,ip02,ip03
      
       # the atuned grpc listening port
       # the port can be set between 0 to 65535 which not be used
       # port = 60001
      
       # the rest service listening port, default is 8383
       # the port can be set between 0 to 65535 which not be used
       rest_host = localhost
       rest_port = 8383
      
       # the tuning optimizer host and port, start by engine.service
       # if engine_host is same as rest_host, two ports cannot be same
       # the port can be set between 0 to 65535 which not be used
       engine_host = localhost
       engine_port = 3838
      
       # when run analysis command, the numbers of collected data.
       # default is 20
       sample_num = 20
      
       # interval for collecting data, default is 5s
       interval = 5
      
       # enable gRPC authentication SSL/TLS
       # default is false
       # grpc_tls = false
       # tlsservercafile = /etc/atuned/grpc_certs/ca.crt
       # tlsservercertfile = /etc/atuned/grpc_certs/server.crt
       # tlsserverkeyfile = /etc/atuned/grpc_certs/server.key
      
       # enable rest server authentication SSL/TLS
       # default is true
       rest_tls = true
       tlsrestcacertfile = /etc/atuned/rest_certs/ca.crt
       tlsrestservercertfile = /etc/atuned/rest_certs/server.crt
       tlsrestserverkeyfile = /etc/atuned/rest_certs/server.key
      
       # enable engine server authentication SSL/TLS
       # default is true
       engine_tls = true
       tlsenginecacertfile = /etc/atuned/engine_certs/ca.crt
       tlsengineclientcertfile = /etc/atuned/engine_certs/client.crt
       tlsengineclientkeyfile = /etc/atuned/engine_certs/client.key
      
      
       #################################### log ############################### 
       [log]
       # either "debug", "info", "warn", "error", "critical", default is "info"
       level = info
      
       #################################### monitor ############################### 
       [monitor]
       # with the module and format of the MPI, the format is {module}_{purpose}
       # the module is Either "mem", "net", "cpu", "storage"
       # the purpose is "topo"
       module = mem_topo, cpu_topo
      
       #################################### system ############################### 
       # you can add arbitrary key-value here, just like key = value
       # you can use the key in the profile
       [system]
       # the disk to be analysis
       disk = sda
      
       # the network to be analysis
       network = enp189s0f0
      
       user = root
       
       #################################### tuning ###############################
       # tuning configs
       [tuning]
       noise = 0.000000001
       sel_feature = false
      

      The configuration items in the configuration file /etc/atuned/engine.cnf of the A-Tune engine are described as follows:

      • Startup configuration of the A-Tune engine service (modify the parameter values as required).

        • engine_host: Listening address of the A-Tune engine service. The default value is localhost.
        • engine_port: Listening port of the A-Tune engine service. The value ranges from 0 to 65535. The default value is 3838.
        • engine_tls: Indicates whether to enable SSL/TLS certificate verification for the A-Tune engine service. This function is enabled by default.
        • tlsenginecacertfile: Path of the server CA certificate of the A-Tune engine service.
        • tlsengineservercertfile: Path of the server certificate of the A-Tune engine service.
        • tlsengineserverkeyfile: Server key path of the A-Tune engine service.
      • Log information

        Change the log level as required. The default log level is info. Log information is recorded in the /var/log/messages file.

      Example

      #################################### engine ###############################
       [server]
       # the tuning optimizer host and port, start by engine.service
       # if engine_host is same as rest_host, two ports cannot be same
       # the port can be set between 0 to 65535 which not be used
       engine_host = localhost
       engine_port = 3838
      
       # enable engine server authentication SSL/TLS
       # default is true
       engine_tls = true
       tlsenginecacertfile = /etc/atuned/engine_certs/ca.crt
       tlsengineservercertfile = /etc/atuned/engine_certs/server.crt
       tlsengineserverkeyfile = /etc/atuned/engine_certs/server.key
      
       #################################### log ###############################
       [log]
       # either "debug", "info", "warn", "error", "critical", default is "info"
       level = info
      

      Starting A-Tune

      After A-Tune is installed, you need to configure the A-Tune service before starting it.

      • Start the atuned service.

        systemctl start atuned
        
      • Query the atuned service status.

        systemctl status atuned
        

        If the following command output is displayed, the service is started successfully:

      Starting A-Tune Engine

      To use AI functions, you need to start the A-Tune engine service.

      • Start the atune-engine service.

        systemctl start atune-engine
        
      • Query the atune-engine service status.

        systemctl status atune-engine
        

        If the following command output is displayed, the service is started successfully:

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