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awips2/docs/edex/ldm-gempak.md
Shay Carter 772613b30d First pass at updating documentation for v20 
- removed all images that don't apply for v20
- removed several extra files that aren't necessary (in the docs/pdf/ and docs/python/ directories)
- renamed some images that were preserved that had random character names, to something descriptive
2023-11-16 15:50:34 -07:00

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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)"