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TIBCO iProcess® Engine 11.9.1

# 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_idINTEGERNOT NULL,physical_machine_nameVARCHAR(256)NOT NULL,masterSMALLINTNOT NULL,check_error_filesSMALLINTNOT NULL,machine_commentVARCHAR(256))

Column | Description
`logical_machine_id` | Unique ID for this server.
`physical_machine_name` | The name of this server (as returned by the UNIX `uname` command).
`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)
`pk_node_cluster` | `logical_machine_id`

## Foreign Keys

None.

## Indexes

None.

## 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.

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TIBCO iProcess® Engine