Change in osmo-sgsn[master]: gbproxy: Add new VTY-managed timer: link-list clean-stale-timer

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Pau Espin Pedrol gerrit-no-reply at lists.osmocom.org
Fri Aug 17 14:00:17 UTC 2018


Hello Stefan Sperling, Jenkins Builder, 

I'd like you to reexamine a change. Please visit

    https://gerrit.osmocom.org/10486

to look at the new patch set (#2).

Change subject: gbproxy: Add new VTY-managed timer: link-list clean-stale-timer
......................................................................

gbproxy: Add new VTY-managed timer: link-list clean-stale-timer

This timer allows periodically cleaning up stale links in link-list of
each gbproxy_peer. Previous to this patch, this kind of cleanup
(gbproxy_remove_stale_link_infos) was being done only as a consequence
of external events being triggered, such as a message from that peer
being received.
It was found in a production network agreggating several BSS that some
of them were offline for a longtime but gbproxy was still caching big
amounts of really old link_info for the NSEI assigned to those BSS,
because since they were probably turned off abruptely, no new messages
were received from it which would trigger the cleanup.
As a consequence, it has been observed that a timer to periodically
clean up old entries (link-list max-age) is requird in case w don't
receive messages from that NSEI periodically.

Related: SYS#4431
Change-Id: Ic777016f6d4f0e30fb736484774ca46878f17b7a
---
M include/osmocom/sgsn/gb_proxy.h
M src/gprs/gb_proxy_peer.c
M src/gprs/gb_proxy_vty.c
3 files changed, 67 insertions(+), 2 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-sgsn refs/changes/86/10486/2
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Gerrit-Project: osmo-sgsn
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ic777016f6d4f0e30fb736484774ca46878f17b7a
Gerrit-Change-Number: 10486
Gerrit-PatchSet: 2
Gerrit-Owner: Pau Espin Pedrol <pespin at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: Pau Espin Pedrol <pespin at sysmocom.de>
Gerrit-Reviewer: Stefan Sperling <ssperling at sysmocom.de>
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