| DESCRIPTION OF ENHANCEMENTS |
Test sites: Bay Pines, Grand Junction, Sheridan, Tampa,
and Protocols?'.
6. Startup all Logical Links and incoming and outgoing filers. Use the
Filer and Link Management Options ->
RA Restart/Start All Links and Filers
(Note that links that do not have "autostart" enabled will need to
be restarted manually)
For DSM sites ONLY, if you previously disabled an HL7 UCX Service
Description:
for this installation, you may now enable it.
7. DSM Sites: Rebuild your mapped set if necessary.
8. Start Link Manager using the option: "TCP/IP
Link Manager Start/Stop."
============
Patch HL*1.6*71 fixes the corruption of the MSH Header where the MSH segment
is received a second time after the body of the HL7 message has been received.
What occurs is the current VistA HL7 TCP/IP code attempts to reset itself when
incomplete data is received. This usually happens when a timeout has expired
and the complete MSH segment has not been received. When this happens, VistA
HL7 drops original MSH Header. The original body of the message is now left
Milwaukee, and Iron Mountain
without the header. Next, the sender of the original message resends a repeat
of the original MSH Header and the body again. The outcome is shown below:
1) Message body.
2) Message (MSH) header.
3) Message body.
VistA HL7 now read 1) the Message body and 2) the Message Header as the
original message header itself.
After the installation of this patch (HL*1.6*71), VistA HL7 listeners will no
longer attempt to reset after timeouts have occurred, once a start block has
been received.
This patch also fixes the problem where VistA HL7 will attempt to process an
incomplete message. These incomplete messages are the result of a timeout
occurring before the end-block character (<EB>) is reached while reading
inbound data. Also, network performance issues may contribute to the
occurrence of Read timeouts. Furthermore, large inbound messages (100 lines
or more) with relatively short Read timeouts on the receiving side
Patch HL*1.6*71 addresses the following NOIS:
can also increase the likelihood of receiving incomplete messages.
This patch will discard all incomplete messages as if no data
had been received. At which point, the sender of the HL7 message needs
to resend the message again to ensure guaranteed delivery.
Routine Information:
====================
The following routines are included in this patch. The second line
of each of these routines now looks like:
;;1.6;HEALTH LEVEL SEVEN;<patchlist>;JUL 17,1995
Checksum
Routine Old New 2nd Line
======== ======== ======== =====================
HLCSTCP1 5081718 5982461 **19,43,57,64,71**
List of preceding patches: 64
Sites should use CHECK^XTSUMBLD to verify checksums.
1. ISH-1100-40056 mpi/pd: commit ack issue, 'MSH' multiple corruption
Installation Instructions:
==========================
1. Users are allowed to be on the system during the installation.
2. DSM SITES: Review your mapped set. If any of the routines listed in
the Routine Summary section are mapped, they should be removed from
the mapped set at this time.
2. MAC-0101-61601 corrupted MSH multiple (773)
3. Shutdown all Logical Links and incoming and outgoing filers, and
the Link Manager. Use the options:
Filer and Link Management Options ->
SA Stop All Messaging Background Processes
LM TCP/IP Link Manager Start/Stop
For DSM sites ONLY, disabled all HL7 UCX Services
for this installation.
3. ISA-1101-11782 HL7 MESSAGE TRUNCATED ON REMOTE USER LOGGING
4. Use the 'INSTALL/CHECK MESSAGE' option on the PackMan menu. This
option will load the KIDS package onto your system.
5. The patch has now been loaded into a Transport global on your
system. You now need to use KIDS to install the Transport global.
On the KIDS menu, under the 'Installation' menu, use the following
options:
2 Verify Checksums in Transport Global
3 Print Transport Global
4 Compare Transport Global to Current System
5 Backup a Transport Global
6 Install Package(s)
INSTALL NAME: HL*1.6*71
=========
Answer 'NO' to 'Want KIDS to INHIBIT LOGONS during the install?'.
Answer 'NO' to 'Want to DISABLE Scheduled Options, Menu Options,
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