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<tt>Hi, Jeff!<br>
<br>
<tt>Indeed, db_virtual makes perfect sense for what you need.
However, we don't <tt>support unixodb in as<tt>ync mode, but I
will look into this to see if the library s<tt>upports<tt>
it.<br>
<br>
<tt>Regarding REST, <tt>does MSSQL <tt>support it, or
you're thin<tt>king of writing a REST server that
converts queries to SQL?<br>
<br>
<tt>Best regards,<br>
<br>
</tt></tt></tt></tt></tt></tt></tt></tt></tt></tt></tt>
<pre class="moz-signature" cols="72">Răzvan Crainea
OpenSIPS Solutions
<a class="moz-txt-link-abbreviated" href="http://www.opensips-solutions.com">www.opensips-solutions.com</a></pre>
<div class="moz-cite-prefix">On 09/07/2016 02:18 PM, Jeff Pyle
wrote:<br>
</div>
<blockquote
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<p class="MsoNormal"><span style="color:#1F497D">Hi</span> <span
style="color:#1F497D">
Răzvan ,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Ok. I found
this on the 2.2 release info page:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">2.27
DB_VIRTUAL module<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> added async
raw query support<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I thought I
might be able to wrap db_virtual around unixodbc and get it
to work. Apparently not! Or, at least not yet.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">My application
is to attempt to replace an aging Kamailio proxy with an
OpenSIPS one in async mode. Unfortunately I don't have
control over the data or where it lives; it's stuck in an
MSSQL server. Actually, in a few geographically distributed
but otherwise equal MSSQL servers so the db_virtual layer
was perfect.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">rest_get is
mentioned as an available to async. I don't know much about
rest but I'll look at writing a wrapper of sorts to get to
the stored procedure that way. I'm open to any
suggestions!
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">- Jeff<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="color:windowtext">From:</span></b><span
style="color:windowtext">
<a class="moz-txt-link-abbreviated" href="mailto:users-bounces@lists.opensips.org">users-bounces@lists.opensips.org</a>
[<a class="moz-txt-link-freetext" href="mailto:users-bounces@lists.opensips.org">mailto:users-bounces@lists.opensips.org</a>]
<b>On Behalf Of </b>Razvan Crainea<br>
<b>Sent:</b> Wednesday, September 07, 2016 4:07 AM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:users@lists.opensips.org">users@lists.opensips.org</a><br>
<b>Subject:</b> Re: [OpenSIPS-Users] 2.2 crash with
async, db_virtual and unixodbc<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><tt><span style="font-size:10.0pt">Hi,
Jeff!</span></tt><span
style="font-size:10.0pt;font-family:"Courier New""><br>
<br>
<tt>Unfortunately async operations are only supported by the
MySQL backend, therefore it won't work with unixodbc or
other backends. Now it crashes because of a mishandling in
the db_virtual module. We are working on a fix for the
crash, but even after the fix, you will still be unable to
run async queries with unixodbc.</tt><br>
<tt>If you really want to do it async, then you should use
MySQL backend. Also, don't forget to open a feature
request on the issues page[1] to support async queries for
unixodbc.</tt><br>
<br>
<tt>[1] <a moz-do-not-send="true"
href="https://github.com/OpenSIPS/opensips/issues">https://github.com/OpenSIPS/opensips/issues</a></tt><br>
<br>
<tt>Best regards,</tt><br>
<br>
</span><span style="font-size:12.0pt"><o:p></o:p></span></p>
<pre>Răzvan Crainea<o:p></o:p></pre>
<pre>OpenSIPS Solutions<o:p></o:p></pre>
<pre><a moz-do-not-send="true" href="http://www.opensips-solutions.com">www.opensips-solutions.com</a><o:p></o:p></pre>
<div>
<p class="MsoNormal">On 09/07/2016 04:16 AM, Jeff Pyle wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoPlainText">Hello,<o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText">I'm working from the 2.2 nightly build
repo on Debian Jessie, 64-bit, specifically,
2.2.1~20160830~7261cf0-1.<o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText">I have a simple test script that runs
a stored procedure on a Microsoft SQL 2014 server and xlogs
the returned AVPs. This works fine. When I break it up
into an async() function and a return route block, I get a
crash every time.<o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText">Script:<o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText">route {<o:p></o:p></p>
<p class="MsoPlainText"> xlog("L_INFO",
"Sending query...\n");<o:p></o:p></p>
<p class="MsoPlainText">
async(avp_db_query("exec dbo.doStuff '1','2','3','4'",<o:p></o:p></p>
<p class="MsoPlainText">
"$avp(db1);$avp(db2);$avp(db3)"), post_db_dip);<o:p></o:p></p>
<p class="MsoPlainText">}<o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText">route [post_db_dip] {<o:p></o:p></p>
<p class="MsoPlainText"> xlog("L_INFO", "Back
from query.\n");<o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText"> while
(is_avp_set("$avp(db1)") && is_avp_set("$avp(db2)")
&& is_avp_set("$avp(db3)")) {<o:p></o:p></p>
<p class="MsoPlainText">
xlog("L_INFO", "db1=$avp(db1), db2=$avp(db2),
db3=$avp(db3)\n");<o:p></o:p></p>
<p class="MsoPlainText">
avp_delete("$avp(db1)");<o:p></o:p></p>
<p class="MsoPlainText">
avp_delete("$avp(db2)");<o:p></o:p></p>
<p class="MsoPlainText">
avp_delete("$avp(db3)");<o:p></o:p></p>
<p class="MsoPlainText"> }<o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText"> xlog("L_INFO", "End of
processing.\n");<o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText"> sl_send_reply("600",
"Road Closed");<o:p></o:p></p>
<p class="MsoPlainText"> exit;<o:p></o:p></p>
<p class="MsoPlainText">}<o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText">The debug=6:<o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText">...<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19887]:
DBG:avpops:ops_async_dbquery: query [exec dbo.doStuff
'1','2','3','4']<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19887]:
DBG:db_virtual:db_virtual_async_raw_query: f call handle
size = 1<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19887]:
DBG:db_virtual:try_reconnect: try reconnect<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19887]:
DBG:db_virtual:db_virtual_async_raw_query: flags1 = 3<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19883]:
DBG:core:handle_sigs: status = 11<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19883]: <a
moz-do-not-send="true" href="INFO:core:handle_sigs">
INFO:core:handle_sigs</a>: child process 19887 exited by a
signal 11<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19883]: <a
moz-do-not-send="true" href="INFO:core:handle_sigs">
INFO:core:handle_sigs</a>: core was not generated<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19883]: <a
moz-do-not-send="true" href="INFO:core:handle_sigs">
INFO:core:handle_sigs</a>: terminating due to SIGCHLD<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19890]: <a
moz-do-not-send="true" href="INFO:core:sig_usr">INFO:core:sig_usr</a>:
signal 15 received<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19889]: <a
moz-do-not-send="true" href="INFO:core:sig_usr">INFO:core:sig_usr</a>:
signal 15 received<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19888]: <a
moz-do-not-send="true" href="INFO:core:sig_usr">INFO:core:sig_usr</a>:
signal 15 received<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19886]: <a
moz-do-not-send="true" href="INFO:core:sig_usr">INFO:core:sig_usr</a>:
signal 15 received<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19885]: <a
moz-do-not-send="true" href="INFO:core:sig_usr">INFO:core:sig_usr</a>:
signal 15 received<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19884]: <a
moz-do-not-send="true" href="INFO:core:sig_usr">INFO:core:sig_usr</a>:
signal 15 received<o:p></o:p></p>
<p class="MsoPlainText">/usr/sbin/opensips[19883]: <a
moz-do-not-send="true" href="INFO:core:cleanup">INFO:core:cleanup</a>:
cleanup<o:p></o:p></p>
<p class="MsoPlainText">...and so forth.<o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText">The process that crashes, 19887 in
this particular case, is a listener process. I never see
the "Back from xlog" xlog appear. OpenSIPS immediately
respawns but I suspect that's systemd.<o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText">Am I doing something wrong, or is this
a bug?<o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText"> <o:p></o:p></p>
<p class="MsoPlainText" style="margin-right:.5in">- Jef<span
style="color:#1F497D">f<o:p></o:p></span></p>
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