Change in osmo-hlr[master]: db v4: add column last_lu_seen_ps

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neels gerrit-no-reply at lists.osmocom.org
Wed Nov 27 14:44:14 UTC 2019


neels has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-hlr/+/16201 )

Change subject: db v4: add column last_lu_seen_ps
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Patch Set 6:

> Patch Set 5:
> 
> Why does it matter whether attachment is CS or PS? please explain better the rationale behind this change from user case / scenario point of view.

MSC and SGSN are two distinct clients connecting to the HLR and previously both overwrite the same last_lu_seen item. It is theoretically possible that the SGSN talks to a different  HLR than the MSC, or that the SGSN does a LU later than the MSC, and, as the commit log states, for D-GSM I need to find out where the *CS* has been attached. If the SGSN modifies the same data, it may corrupt the decision of where a subscriber is currently attached for voice calls and SMS.


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Gerrit-Project: osmo-hlr
Gerrit-Branch: master
Gerrit-Change-Id: Id7fc50567211a0870ac0524f6dee94d4513781ba
Gerrit-Change-Number: 16201
Gerrit-PatchSet: 6
Gerrit-Owner: neels <nhofmeyr at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: neels <nhofmeyr at sysmocom.de>
Gerrit-Reviewer: osmith <osmith at sysmocom.de>
Gerrit-CC: pespin <pespin at sysmocom.de>
Gerrit-Comment-Date: Wed, 27 Nov 2019 14:44:14 +0000
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