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gabport

NAME

gabport - Utility to configure and display information about Group and Atomic Broadcast (GAB) ports

SYNOPSIS

gabport -p port [-h timeout ]

DESCRIPTION

The gabport utility displays GAB port information or changes the heartbeat timeout value of a user client process on a GAB port. In normal operation, a GAB client process should heartbeat to GAB at a certain interval. GAB uses this mechanism to monitor the aliveness of a GAB user client process. If a client process does not heartbeat in the predefined timeout period, GAB kills the client. As a result, the port is closed.

OPTIONS

-p port

The port to query or change the timeout value. port is specified as GAB port names a-z.

-h timeout

Specify a heartbeat timeout value(in milliseconds) for a client process. The heartbeat statistics are reset by this command.

-d

Display port membership. If the port is used by a user client, it also displays the client process heartbeat statistics.

EXAMPLES

1) Display information about a port used by a user client

# gabport -p h

Port h Information:

========================================================

Flags: 0xe00

Membership: gab01 gab02 gab04

heartbeat timeout: 15000 (msec)

heartbeat warn interval: 1000 (msec)

heartbeat statistics:

0 ~ 3000 (msec): 4177

3000 ~ 6000 (msec): 0

6000 ~ 9000 (msec): 0

9000 ~ 12000 (msec): 0

12000 ~ 15000 (msec): 0

2) Change the client process timeout value to 16 seconds

# gabport -p h -h 16000

Port h new heartbeat timeout: 16000 msecs

SEE ALSO

gabconfig (1M), gabdisk (1M)