node_cluster

The node_cluster table defines the server computers that make up this iProcess Engine node.

Structure

The node_cluster table has the following structure:

TABLE node_cluster(
logical_machine_id
number(5)
NOT NULL,
physical_machine_name
varchar2(256)
NOT NULL,
master
number(1)
NOT NULL,
check_error_files
number(1)
NOT NULL,
machine_comment
varchar2(256)
NULL)

Column	Description
logical_machine_id	Unique ID for this server.
physical_machine_name	If a UNIX server, the name of this server (as returned by the UNIX uname command). If a Windows server, then the name of this server or the Microsoft Windows cluster network name.
master	Flag that defines whether this computer is acting as the master server (1) or, if a node-cluster architecture is being used, as a slave server (0).
check_error_files	Flag that defines whether the Process Sentinels on this server check (1) or do not check (0) for the creation of SWDIR\logs\sw_error and sw_warn files.
machine_comment	Descriptive comment describing this server.

Primary Key

The following primary key is defined for this table.

Key Name	Column(s)	Index Tablespace
pk_node_cluster	logical_machine_id	TINYINDEXSPACE

Unique Key

The following unique key is defined for this table.

Key Name	Column(s)	Index Tablespace
unq_node_cluster	physical_machine_name	TINYINDEXSPACE

Foreign Keys

None.

Indexes

None.

Storage

The following STORAGE values are defined for this table.

Value	Definition
Initial	TINYTABLESIZE
Percentage Increase	TINYTABLEPCTINCREASE
Tablespace	TINYTABLESPACE

Table Activity

The node_cluster table contains one row for each server computer that is part of the iProcess Engine node.

Rows are added, updated and deleted in the following situations.

A row is...	When...
added	a new server is added to the node, either at installation or by using the SWDIR\util\swadm utility.
updated	a server’s details are updated, using the SWDIR\util\swadm utility.
deleted	a server is removed from the node, using the SWDIR\util\swadm utility.