awips2/docs/edex/ldm-gempak.md

layout	type	shortname	title	subtitle
default	guide	Docs	LDM for AWIPS and GEMPAK	EDEX Admin

LDM for AWIPS and GEMPAK

It is possible to have two LDM installs (since AWIPS LDM installs to /awips2/ldm and is owned and run by user awips:awips. But two LDM clients doubles your bandwidth and uncessary. This document explains how the LDM keeps its EDEX processing separate from other processing (GEMPAK decoders, TDS, etc.).

/awips2/ldm/etc/ldmd.conf

The defailt AWIPS LDM config file executes a single pqact process with the -e flag (for EDEX). The edexBridge server name is defined (typically the local machine name):

EXEC    "pqact -e /awips2/ldm/etc/pqact.conf"
EXEC    "edexBridge -s $HOSTNAME"

A separate EXEC line should be added for GEMPAK decoders, without the -e flag:

EXEC    "pqact -f IDS-DDPLUS /awips2/ldm/etc/pqact.gempak_decoders"

yum install apr-devel apr-util-devel "libdb-4.7.so()(64bit)"