6.3 Installing

The following 3 RPM packages are needed when installing a GridDB node. Place these packages anywhere in the machine.

Package name	File name	Description
griddb-server	griddb-server-X.X.X-linux.x86_64.rpm	The start and other commands for the GridDB node module and server are included.
griddb-client	griddb-client-X.X.X-linux.x86_64.rpm	One set of operating commands except start node is included.
griddb-docs	griddb-docs-X.X.X-linux.x86_64.rpm	GridDB manual and program samples are included.

*: X.X.X is the GridDB version

Install using the rpm command as a root user.

$ su
# rpm -Uvh griddb-server-X.X.X-linux.x86_64.rpm
Under preparation...           ########################################### [100%]
User gsadm and group gridstore have been registered.
GridStore uses new user and group.
1:griddb-server                 ########################################### [100%]
# rpm -Uvh griddb-client-X.X.X-linux.x86_64.rpm
Under preparation...           ########################################### [100%]
User and group has already been registered correctly.
GridStore uses existing user and group.
1:griddb-client                  ########################################### [100%]
# rpm -Uvh griddb-docs-X.X.X-linux.x86_64.rpm
Under preparation...           ########################################### [100%]
1:griddb-docs                   ########################################### [100%]

When you install the package, the following group and user are created in the OS. This OS user is set as the operator of GridDB.

Group	User	Home directory
gridstore	gsadm	/var/lib/gridstore

The following environment variables are defined in this gsadm user.

Environment variables	Value	Meaning
GS_HOME	/var/lib/gridstore	gsadm/GridDB home directory
GS_LOG	/var/lib/gridstore/log	Event log file output directory

[Points to note]

• These environment variables are used in the operating commands described later.
• The password of the gsadm user has not been set. With the root user privilege, please set the password appropriately.
  • Some of the functions of the operation tools may be necessary.

In addition, when the GridDB node module is installed, services that are executed automatically upon startup of the OS will be registered.

Service name	Run level
gridstore	3,4,5

The service registration data can be checked with the following command.

# /sbin/chkconfig --list | grep gridstore
gridstore 0:off 1:off 2:off 3:on 4:on 5:on 6:off

The GridDB node will be started automatically by this service during OS startup.

[Points to note]

• Services will not start automatically immediately after installation.

To stop auto startup of a service, use the command below.

# /sbin/chkconfig gridstore off

See the chapter on services in “GridDB Operational Management Guide” (GridDB_OperationGuide.html) for details of the services.

Check the directory configuration of the installed GridDB node.

First, check that the GridDB home directory, and related directory and files have been created.

GridDB home directory

/var/lib/gridstore/                      # GridDB home directory
                admin/                # integrated operational management GUI home directory
                backup/               # backup directory
                conf/                 # definition file directory
                        gs_cluster.json  # cluster definition file
                        gs_node.json     # node definition file
                        password         # user definition file
                data/                 # database file directory
                log/                  # log directory

Confirm with the following command.

$ ls /var/lib/gridstore/
admin backup conf data log

Next, check that the installation directory has been created

Installation directory

/usr/gridstore-X.X.X/              # installation directory
                    Fixlist.pdf   # revision record
                    Readme.txt    # release instructions
                    bin/          # operation command, module directory
                    conf/         # definition file sample directory
                    docs/         # document directory
                    etc/
                    lib/          # library directory
                    license/      # license directory
                    prop/         # configuration file directory
                    web/          # integrated operational management GUI file directory

Confirm with the following command.

$ ls /usr/gridstore-X.X.X/
Fixlist.pdf Readme.txt bin conf etc lib license prop web

All documents have been compressed into a single ZIP file. Decompress and refer to the documents where appropriate as shown below.

$ cd /usr/gridstore-X.X.X/docs
$ unzip griddb-documents-X.X.X.zip

In addition, the following symbolic links are created as shown below in a few directories under the installation directory for greater convenience.

$ ls /usr/gridstore/
conf lib prop web

Lastly, confirm the version of the server module installed with the following command.

$ gsserver --version
GridDB version X.X.X build XXXXX

Points to note

The following files are created when GridDB is operated according to the following procedure.

[Database file]

/var/lib/gridstore/                     # GridDB home directory
                data/                # database file directory
                        gs_log_n_m.log  # log file to record the transaction logs (n, m are numbers)
                        gs_cp_n_p.dat   # checkpoint file to record data regularly (n, p are numbers)

[Log file]

/var/lib/gridstore/                            # GridDB home directory
                log/                        # log directory
                    gridstore-%Y%m%d-n.log  # event log file
                    gs_XXXX.log             # operation tool log file

The directory where these files are created can be changed by the parameter settings in the node definition file.

*: gs_XXXX is an operation tool name. (Example: gs_startnode.log)

Administrator privilege is used for authentication related matter within the nodes and clusters. Creation date of administrator user is saved in the user definition file. The default file is as shown below.

• /var/lib/gridstore/conf/password

The default user below exists immediately after installation.

User	Password	Example of proper use
admin	admin	For authentication of operation administrator user, operation commands
system	manager	For authentication of application user, client execution

Administrator user information including the above-mentioned default users can be changed using the user administration command in the operating commands.

Command	Function
gs_adduser	Add an administrator user
gs_deluser	Delete an administrator user
gs_passwd	Change the password of administrator user

Change the password as shown below when using a default user. The password is encrypted during registration.

$ gs_passwd admin
Password: (enter password)
Retype password: (re-enter password)

When adding a new administrator user except a default user, the user name has to start with gs#.

One or more ASCII alphanumeric characters and the underscore sign “_” can be used after gs#.

An example on adding a new administrator user is shown below.

$ gs_adduser gs#newuser
Password: (enter password)
Retype password: (re-enter password)

[Points to note]

• A GridDB administrator user is different from the OS user gsadm created during installation.
• A change in the administrator user information using a user administration command becomes valid when a node is restarted.
• In order to use it for authentication purposes in the client, the same user data needs to be registered in all the nodes. Copy the user definition file and make sure the same user data can be referred to in all the nodes.
• Execute the operating command as a gsadm user.

[Memo]

• See “GridDB Operational Management Guide” (GridDB_OperationGuide.html) for details of the user management commands.

After installation, the following settings are necessary in order to operate GridDB.

1. Network environment settings
2. Cluster name settings

GridDB settings are configured by editing 2 types of definition files.

• Cluster definition file (gs_cluster.json)
• Node definition file (gs_node.json)

The cluster definition file defines the parameters that are common in the entire clusters.

The node definition files define the parameters for the different settings in each node.

These definition file samples are installed as follows.

/usr/gridstore/                     # installation directory
            conf/                # definition file directory
                    gs_cluster.json # cluster definition file sample
                    gs_node.json    # node definition file sample

In a new installation, the same files are also placed in the conf directory under the GridDB home directory.

/var/lib/gridstore/                     # GridDB home directory
                conf/                # definition file directory
                        gs_cluster.json # (edited) cluster definition file
                        gs_node.json    # (edited) node definition file

During operations, edit these definition files.

[Points to note]

• When the GridDB version is upgraded, compare the newly installed sample with these definition files to adequately reflect the parameters added.
• A cluster definition file defines the parameters that are common in the entire clusters. As a result, the settings must be the same in all of the nodes in the cluster. Nodes with different settings will get an error upon joining the cluster and prevented from participating in the cluster. Further details will be explained in the later chapter.

First, set up the network environment.

An explanation of the recommended configuration method in an environment that allows a multicast to be used is given below. In an environment which does not allow a multicast to be used, or an environment in which communications between fellow nodes cannot be established in a multicast, a cluster configuration method other than the multicast method has to be used. See Other cluster configuration method settings for the details.

The configuration items can be broadly divided as follows.

• (1) Address information serving as an interface with the client
• (2) Address information for cluster administration and processing
• (3) Address information serving as an interface with the JDBC client (GridDB Advanced Edition only)

Although these settings need to be set to match the environment, basically default settings will also work.

However, an IP address derived in reverse from the host name of the machine needs to be an address that allows it to be connected from the outside regardless of whether the GridDB cluster has a multiple node configuration or a single node configuration.

Normally, this can be set by stating the host name and the corresponding IP address in the /etc/hosts file.

/etc/hosts setting

First, check with the following command to see whether the setting has been configured. If the IP address appears, it means that the setting has already been configured.

$ hostname -i
192.168.11.10

The setting has not been configured in the following cases.

$ hostname -i
hostname: no address corresponding to name

In addition, a loopback address that cannot be connected from the outside may appear.

$ hostname -i
127.0.0.1

If the setting has not been configured or if a loopback address appears, use the following example as a reference to configure /etc/hosts. The host name and IP address, and the appropriate network interface card (NIC) differ depending on the environment.

1. Check the host name and IP address.

   $ hostname
   GS_HOST
   $ ip route | grep eth0 | cut -f 12 -d " " | tr -d "\n"
   192.168.11.10
   

2. Add the IP address and corresponding host name checked by the root user to the /etc/hosts file.

   192.168.11.10 GS_HOST
   

3. Check that the settings have been configured correctly.

   $ hostname -i
   192.168.11.10
   

*If the displayed setting remains the same as before, it means that a setting higher in priority is given in the /etc/hosts file. Change the priority order appropriately.

Proceed to the next setting after you have confirmed that /etc/hosts has been configured correctly.

(1) Address information serving as an interface with the client

In the address data serving as an interface with the client, there are configuration items in the node definition file and cluster definition file.

Node definition file

Parameters	Data type	Meaning
/transaction/serviceAddress	string	Reception address of transaction process
/transaction/servicePort	string	Reception port of transaction process
/system/serviceAddress	string	Connection address of operation command
/system/servicePort	string	Connection port of operation command

The reception address and port of transaction processes are used to connect individual client to the nodes in the cluster, and to request for the transaction process from the cluster. This address is used when configuring a cluster with a single node, but in the case where multiple nodes are present through API, the address is not used explicitly.

The connection address and port of the operating command are used to specify the process request destination of the operation command, as well as the repository information of the integrated operation control GUI.

These reception/connection addresses need not be set so long as there is no need to use/separate the use of multiple interfaces.

Cluster definition file

Parameters	Data type	Meaning
/transaction/notificationAddress	string	Interface address between client and cluster
/transaction/notificationPort	string	Interface port between client and cluster

A multi-cast address and port are specified in the interface address between a client and cluster. This is used by a GridDB cluster to send cluster information to its clients and for the clients to send processing requests via the API to the cluster. See the description of GridStoreFactory class/method in “GridDB API reference” (GridDB_API_Reference.html) for details.

It is also used as a connection destination address of the export/import tool, or as repository data of the integrated operation control GUI.

(2) Address information for cluster administration and processing

In the address data for a cluster to autonomously perform cluster administration and processing, there are configuration items in the node definition file and cluster definition file. These addresses are used internally by GridDB to exchange the heart beat (live check among clusters) and information among the clusters. These settings are not necessary so long as the address used is not duplicated with other systems on the same network or when using multiple network interface cards.

Node definition file

Parameters	Data type	Meaning
/cluster/serviceAddress	string	Reception address used for cluster administration
/cluster/servicePort	string	Reception port used for cluster administration

Cluster definition file

Parameters	Data type	Meaning
/cluster/notificationAddress	string	Multicast address for cluster administration
/cluster/notificationPort	string	Multicast port for cluster administration

• Although a synchronization process is carried out with a replica when the cluster configuration is changed, a timeout time can be set for the process.
  • /sync/timeoutInterval

[Points to note]

• An address or port that is not in use except in GridDB has to be set.
• The same address can be set for the node definition file gs_node.json /transaction/serviceAddress, /system/serviceAddress, and /cluster/serviceAddress for operations to be performed. If a machine has multiple network interfaces, the bandwidth can be increased by assigning a separate address to each respective interface.

The following settings are applicable in the GridDB Advanced Edition only.

(3) Address information serving as an interface with the JDBC client

In the address data serving as an interface with the JDBC/ODBC client, there are configuration items in the node definition file and cluster definition file.

Node definition file

Parameters	Data type	Meaning
/sql/serviceAddress	string	Reception address for JDBC/ODBC client connection
/sql/servicePort	int	Reception port for JDBC/ODBC client connection

The reception address and port of JDBC/ODBC client connection are used to connect JDBC/ODBC individual client to the nodes in the cluster, and to access the cluster data in SQL. This address is used when configuring a cluster with a single node, but in the case where multiple nodes are present through API, the address is not used explicitly.

Cluster definition file

Parameters	Data type	Meaning
/sql/notificationAddress	string	Address for multi-cast distribution to JDBC/ODBC client
/sql/notificationPort	int	Multicast port to JDBC/ODBC client

The address and port used for multicast distribution to a JDBC/ODBC client are used for the GridDB cluster to notify the JDBC/ODBC client of cluster data, and to access the cluster data in SQL with the JDBC/ODBC client.

Refer to Annex Parameter List for the other parameters and default values.

Set the name of the cluster to be composed by the target nodes in advance. The name set will be checked to see if it matches the value specified in the command to compose the cluster. As a result, this prevents a different node and cluster from being composed when there is an error in specifying the command.

The cluster name is specified in the following configuration items of the cluster definition file.

Cluster definition file

Parameters	Data type	Meaning
/cluster/clusterName	string	Name of cluster to create

[Points to note]

• Node failed to start with default value ("").
• A unique name on the sub-network is recommended.
• A cluster name is a string composed of 1 or more ASCII alphanumeric characters and the underscore “_”. However, the first character cannot be a number. The name is also not case-sensitive. In addition, it has to be specified within 64 characters. The following characters are also OK: hyphen '-', dot '.', slash '/', equal '='

In an environment which does not allow the multicast method to be used, configure the cluster using the fixed list method or provider method. An explanation of the respective network settings in the fixed list method and provider method is given below.

When using the multicast method, proceed to Setting the tuning parameters.

(1) Fixed list method

When a fixed address list is given to start a node, the list is used to compose the cluster.

When composing a cluster using the fixed list method, configure the parameters in the cluster definition file.

Cluster definition file

Parameters	Data type	Meaning
/cluster/notificationMember	string	Specify the address list when using the fixed list method as the cluster configuration method.

A configuration example of a cluster definition file is shown below.

{
                            :
                            :
    "cluster":{
        "clusterName":"yourClusterName",
        "replicationNum":2,
        "heartbeatInterval":"5s",
        "loadbalanceCheckInterval":"180s",
        "notificationMember": [
            {
                "cluster": {"address":"172.17.0.44", "port":10010},
                "sync": {"address":"172.17.0.44", "port":10020},
                "system": {"address":"172.17.0.44", "port":10040},
                "transaction": {"address":"172.17.0.44", "port":10001},
                "sql": {"address":"172.17.0.44", "port":20001}
            },
            {
                "cluster": {"address":"172.17.0.45", "port":10010},
                "sync": {"address":"172.17.0.45", "port":10020},
                "system": {"address":"172.17.0.45", "port":10040},
                "transaction": {"address":"172.17.0.45", "port":10001},
                "sql": {"address":"172.17.0.45", "port":20001}
            },
            {
                "cluster": {"address":"172.17.0.46", "port":10010},
                "sync": {"address":"172.17.0.46", "port":10020},
                "system": {"address":"172.17.0.46", "port":10040},
                "transaction": {"address":"172.17.0.46", "port":10001},
                "sql": {"address":"172.17.0.46", "port":20001}
            }
        ]
    },
                            :
                            :
}

(2) Provider method

Get the address list supplied by the address provider to perform cluster configuration.

When composing a cluster using the provider method, configure the parameters in the cluster definition file.

Cluster definition file

Parameters	Data type	Meaning
/cluster/notificationProvider/url	string	Specify the URL of the address provider when using the provider method as the cluster configuration method.
/cluster/notificationProvider/updateInterval	string	Specify the interval to get the list from the address provider. Specify a value that is 1s or higher and less than 2^31s.

A configuration example of a cluster definition file is shown below.

{
                            :
                            :
    "cluster":{
        "clusterName":"yourClusterName",
        "replicationNum":2,
        "heartbeatInterval":"5s",
        "loadbalanceCheckInterval":"180s",
        "notificationProvider":{
            "url":"http://example.com/notification/provider",
            "updateInterval":"30s"
        }
    },
                            :
                            :
}

The address provider can be configured as a Web service or as a static content. The specifications below need to be satisfied.

• Compatible with the GET method.
• When accessing the URL, the node address list of the cluster containing the cluster definition file in which the URL is written is returned as a response.
  • Response body: Same JSON as the contents of the node list specified in the fixed list method
  • Response header: Including Content-Type:application/json

An example of a response sent from the address provider is as follows.

$ curl http://example.com/notification/provider
[
    {
        "cluster": {"address":"172.17.0.44", "port":10010},
        "sync": {"address":"172.17.0.44", "port":10020},
        "system": {"address":"172.17.0.44", "port":10040},
        "transaction": {"address":"172.17.0.44", "port":10001},
        "sql": {"address":"172.17.0.44", "port":20001}
    },
    {
        "cluster": {"address":"172.17.0.45", "port":10010},
        "sync": {"address":"172.17.0.45", "port":10020},
        "system": {"address":"172.17.0.45", "port":10040},
        "transaction": {"address":"172.17.0.45", "port":10001},
        "sql": {"address":"172.17.0.45", "port":20001}
    },
    {
        "cluster": {"address":"172.17.0.46", "port":10010},
        "sync": {"address":"172.17.0.46", "port":10020},
        "system": {"address":"172.17.0.46", "port":10040},
        "transaction": {"address":"172.17.0.46", "port":10001},
        "sql": {"address":"172.17.0.46", "port":20001}
    }
]

[Memo]

• Specify the serviceAddress and servicePort of the node definition file in each module (cluster,sync etc.) for each address and port.
• sql items are required in the GridDB Advanced Edition only.
• Set either the /cluster/notificationAddress, /cluster/notificationMember, /cluster/notificationProvider in the cluster definition file to match the cluster configuration method used.
• See “GridDB technical reference” (GridDB_TechnicalReference.html) for details on the cluster configuration method.

This chapter explains the installation procedure of the client library. There are 2 types of client library in GridDB, Java and C. Only the Java version supports the GridDB Advanced Edition NewSQL interface.

[Points to note]

• When choosing the OS package group during OS installation, please choose the minimum version or lower.
  • Software Development WorkStation

The following needs to be installed as a Java language development environment.

• Oracle Java 6/7/8
• Only 64-bit Java is supported by the GridDB Advanced Edition NewSQL interface.

$ java -version
java version "1.7.0_79"
Java(TM) SE Runtime Environment (build 1.7.0_79-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode)

The following 4 RPM packages are required for the installation of the GridDB client library. Place the packages anywhere in the machine.

The griddb-newsql package is only available in GridDB Advanced Edition.

Package name	File name	Description
griddb-java_lib	griddb-java_lib-X.X.X-linux.x86_64.rpm	Java library is included.
		(/usr/share/java/gridstore.jar)
griddb-c_lib	griddb-c_lib-X.X.X-linux.x86_64.rpm	C header file and library are included.
		(/usr/include/gridstore.h and /usr/lib64/libgridstore.so)
griddb-docs	griddb-docs-X.X.X-linux.x86_64.rpm	GridDB manual and program samples are included.
griddb-newsql	griddb-newsql-X.X.X-linux.x86_64.rpm	NewSQL interface library is included.

Install using the rpm command as a root user.

$ su
# rpm -ivh griddb-c_lib-X.X.X-linux.x86_64.rpm
Under preparation...           ########################################### [100%]
1:griddb-c_lib                  ########################################### [100%]
# rpm -ivh griddb-java_lib-X.X.X-linux.x86_64.rpm
Under preparation...           ########################################### [100%]
1:griddb-java_lib               ########################################### [100%]
# rpm -ivh griddb-docs-X.X.X-linux.x86_64.rpm
Under preparation...           ########################################### [100%]
1:griddb-docs                   ########################################### [100%]
# rpm -ivh griddb-newsql-X.X.X-linux.x86_64.rpm
Under preparation...           ########################################### [100%]
1:griddb-newsql                 ########################################### [100%]

When the Java version of the client is used, add the client library to CLASSPATH.

$ export CLASSPATH=${CLASSPATH}:/usr/share/java/gridstore.jar

When the C version is used instead, add the client library to LD_LIBRARY_PATH.

$ export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/lib64

GridDB is available as an AMI on the AWS Marketplace and this section will describe how to install it.

Please visit the GridDB Community Edition Marketplace and follow the onscreen instructions to create GridDB instance in your VPC. We recommend that you create 3 or more instances when configuring a GridDB cluster.

Security Group

GridDB node requires the following inbound ports to be open:

Protocol	Port range	Description
TCP	22	For operation over SSH.
TCP	10001,10010,10020,10040	GridDB default ports, to communicate with clients and other nodes.

Connecting to an instance

You can connect to the EC2 instances via SSH as the centos default OS user once the instances have been deployed and the security group has been configured.

$ ssh -i your_keypair.pem centos@172.17.xx.xx

Default OS User

When you deploy the EC2 instance, the following group and user are created by default in the OS. This OS user is the default operator of GridDB.

Group	User	Home directory
gridstore	gsadm	/var/lib/gridstore

To log in as gsadm from centos user, please use the following command.

$ sudo su - gsadm 

Directory Structure

The following directories and files, as well as the necessary modules and commands are created in the GridDB instance.

/var/lib/gridstore/        # GridDB home directory
    backup/               # Backup directory(unused)
    conf/                 # Directory storing definition files
        gs_cluster.json   # Cluster definition file
        gs_node.json      # Node definition file
        password          # User definition file
    data/                 # Directory storing database files
    log/                  # Directory storing event log files

$ ls /usr/griddb-X.X.X/*
/usr/griddb-X.X.X/RPM-README.md

/usr/griddb-X.X.X/3rd_party:
3rd_party.md            apr              json-simple      picojson  slf4j
activemq-cpp-library    BSD_License.txt  MessagePack      purewell  yield
Apache_License-2.0.txt  ebb              MIT_License.txt  sha2

/usr/griddb-X.X.X/bin:
gridstore-X.X.X.jar       gs_joincluster   gs_startnode    log.py
gridstore-conf-X.X.X.jar  gs_leavecluster  gs_stat         util.py
gs_adduser                gs_passwd        gs_stopcluster
gs_deluser                gsserver         gs_stopnode

/usr/griddb-X.X.X/conf:
gs_cluster.json  gs_node.json  password

/usr/griddb-X.X.X/doc:
manual  sample

When you access and run a GridDB node, the following files are created in the directories to store database files and event log files.

[Database file]

/var/lib/gridstore/        # GridDB home directory
    data/                 # Directory storing database files
        gs_log_n_m.log    # File recording transaction logs (n, m: positive number)
        gs_cp_n_p.dat     # Checkpoint file recording data regularly (n, p: positive number)

[Event log file]

/var/lib/gridstore/              # GridDB home directory
    log/                        # Directory storing event logs
        gridstore-%Y%m%d-n.log  # Event log file

You can change the directories used to store files by editing the relevant parameters in the node definition file.

Please refer to the document below for more information.

• RPM Install Guide

Other documents below are available on our GitHub page.

• Release notes
• GridDB Technical Design Document
• Quick Start Guide
• API Reference

Administrator Setup

An administrator user is needed for authentication purposes in nodes and clusters. Administrator user information is stored in the User definition file. The default file is shown below.

• /var/lib/gridstore/conf/password

The following user is created by default.

User	Password
admin	No settings

Administrator user information including the default admin user can be changed using the following user administration command in the operating commands.

Command	Function
gs_adduser	Add an administrator user
gs_deluser	Delete an administrator user
gs_passwd	Change the password of an administrator user

Change the default admin password using the gs_passwd command shown below. The password is encrypted during registration.

[Note]

• The default admin password is not set by default. Please make sure to change the password as the server will not start if the administrator user password is not set.

  $ gs_passwd admin
  Password:(Input password)
  Retype password:(Input password again)
  

When adding a new administrator user (not including the default user), the user name has to start with gs#. One or more ASCII alphanumeric characters and the underscore sign "_" can be used after gs#.

An example on adding a new administrator user is shown below.

$ gs_adduser gs#newuser
Password:(Input password)
Retype password:(Input password again)

[Note]

• Changes to the administrator user information take effect after the node is restarted.
• User information is used for client authentication, so the common user information must be registered in all nodes. Please ensure that these information are available in all nodes by copying the user definition file.

There are two types of definition files in GridDB:

• Cluster definition file
• Node definition file

The cluster definition file is a file which defines the setting values commonly used in the entire cluster. The node definition file is a file which defines different setting values in each node.

Templates for these definition files are shown below. You can create definition files for GridDB by copying and editing these templates.

/usr/griddb-3.0.0/        # Installation directory
    conf/                # Directory storing definition files
        gs_cluster.json  # Template for cluster definition file
        gs_node.json     # Template for node definition file

Save an edited file with the predetermined name in the predetermined directory shown below.

/var/lib/gridstore/       # GridDB home directory
    conf/                # Directory storing definition files
        gs_cluster.json  # (Edited) Cluster definition file
        gs_node.json     # (Edited) Node definition file

For details on definition files, please refer to "2.3 Configure environment-dependent parameters." of the Quick Start Guide.

Please set the cluster name in advance. The name set will be checked to see if it matches the value specified in the cluster composition command. This verification is used to prevent unintentional composition of the wrong node to a certain cluster in the case of an error in specifying the command.

The following settings in the Cluster definition file are specified in the cluster name.

Cluster definition file

Parameter	Data type	Meaning
/cluster/clusterName	string	Name of cluster to create

[Note]

• The nodes will fail to start when the default value ("") is used.
• We recommend that a unique name on the sub-network is used.
• A cluster name is a string composed of 1 or more case-insensitive ASCII alphanumeric characters and the underscore "_", with a limitation of 64 characters. However, the first character cannot be a number.

Please refer to "2.3 Configure environment-dependent parameters." of the Quick Start Guide.

GridDB usually uses multicast to configure a multiple node cluster. However, Amazon VPC does not support multicast out of the instance (as of October 2016). Therefore, GridDB uses fixed list method instead to configure a multiple node cluster.

For details on the other cluster configuration methods, please refer to GridDB CE 3.0.0 RELEASE NOTES.

Cluster definition file

Parameter	Data type	Meaning
/cluster/notificationMember	string	The address list when using the fixed list method as the cluster configuration method.

A configuration example of the cluster definition file is shown below. The cluster is composed of 3 nodes.

{
                            :
                            :
"cluster":{
    "clusterName":"yourClusterName",
    "replicationNum":2,
    "heartbeatInterval":"5s",
    "loadbalanceCheckInterval":"180s",
    "notificationMember": [
    {
        "cluster": {"address":"172.17.xx.xx", "port":10010},
        "sync": {"address":"172.17.xx.xx", "port":10020},
        "system": {"address":"172.17.xx.xx", "port":10040},
        "transaction": {"address":"172.17.xx.xx", "port":10001}
    },
    {
        "cluster": {"address":"172.17.yy.yy", "port":10010},
        "sync": {"address":"172.17.yy.yy", "port":10020},
        "system": {"address":"172.17.yy.yy", "port":10040},
        "transaction": {"address":"172.17.yy.yy", "port":10001}
    },
    {
        "cluster": {"address":"172.17.zz.zz", "port":10010},
        "sync": {"address":"172.17.zz.zz", "port":10020},
        "system": {"address":"172.17.zz.zz", "port":10040},
        "transaction": {"address":"172.17.zz.zz", "port":10001}
    }
    ]
},
                            :
                            :
}

[Note]

• Please specify the serviceAddress and servicePort of the node definition file in each module (cluster,sync etc.) for each address and port.
• Please set either the /cluster/notificationAddress or /cluster/notificationMember in the cluster definition file to match the cluster configuration method used.