[Asterisk-code-review] res pjsip: Send a 503 response when overload state if reliab... (asterisk[16])

[Chris Savinovich]

Hello Richard Mudgett, Jenkins2, Joshua Colp, 

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

    https://gerrit.asterisk.org/10595

to look at the new patch set (#3).

Change subject: res_pjsip: Send a 503 response when overload state if reliable transport.
......................................................................

res_pjsip: Send a 503 response when overload state if reliable transport.

When Asterisk's taskprocessors get overloaded we need to reduce the work
load. res_pjsip currently ignores new SIP requests and relies on SIP
retransmissions in the hope that the overload condition will clear soon
enough to handle the retransmitted SIP request.
This change adds the following code after ast_taskprocessor_alert_get()
has returned TRUE:
1- identifies transport type. If non-udp then send a 503 response
2- if transport type is udp/udp6 then ignore, as before.

Change-Id: I1c230b40d43a254ea0f226b7acf9ee480a5d3836
---
M res/res_pjsip/pjsip_distributor.c
1 file changed, 15 insertions(+), 5 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/95/10595/3
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Gerrit-Project: asterisk
Gerrit-Branch: 16
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I1c230b40d43a254ea0f226b7acf9ee480a5d3836
Gerrit-Change-Number: 10595
Gerrit-PatchSet: 3
Gerrit-Owner: Chris Savinovich <csavinovich at digium.com>
Gerrit-Reviewer: Jenkins2 (1000185)
Gerrit-Reviewer: Joshua Colp <jcolp at digium.com>
Gerrit-Reviewer: Richard Mudgett <rmudgett at digium.com>
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