<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta name="Microsoft Theme 2.00" content="strtedge 011"><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 14 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Arial","sans-serif";
color:black;
mso-fareast-language:EN-US;}
h1
{mso-style-priority:9;
mso-style-link:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 1 \0417\043D\0430\043A";
margin-top:24.0pt;
margin-right:0cm;
margin-bottom:0cm;
margin-left:0cm;
margin-bottom:.0001pt;
page-break-after:avoid;
font-size:16.0pt;
font-family:"Arial","sans-serif";
color:black;
mso-fareast-language:EN-US;}
h2
{mso-style-priority:9;
mso-style-link:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 2 \0417\043D\0430\043A";
margin-top:10.0pt;
margin-right:0cm;
margin-bottom:0cm;
margin-left:0cm;
margin-bottom:.0001pt;
page-break-after:avoid;
font-size:14.0pt;
font-family:"Arial","sans-serif";
color:black;
mso-fareast-language:EN-US;
font-weight:normal;}
h3
{mso-style-priority:9;
mso-style-link:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 3 \0417\043D\0430\043A";
margin-top:10.0pt;
margin-right:0cm;
margin-bottom:0cm;
margin-left:0cm;
margin-bottom:.0001pt;
page-break-after:avoid;
font-size:13.0pt;
font-family:"Arial","sans-serif";
color:black;
mso-fareast-language:EN-US;
font-weight:normal;}
h4
{mso-style-priority:9;
mso-style-link:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 4 \0417\043D\0430\043A";
margin-top:10.0pt;
margin-right:0cm;
margin-bottom:0cm;
margin-left:0cm;
margin-bottom:.0001pt;
page-break-after:avoid;
font-size:14.0pt;
font-family:"Arial","sans-serif";
color:black;
mso-fareast-language:EN-US;
font-weight:normal;}
h5
{mso-style-priority:9;
mso-style-link:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 5 \0417\043D\0430\043A";
margin-top:10.0pt;
margin-right:0cm;
margin-bottom:0cm;
margin-left:0cm;
margin-bottom:.0001pt;
page-break-after:avoid;
font-size:13.0pt;
font-family:"Arial","sans-serif";
color:black;
mso-fareast-language:EN-US;
font-weight:normal;}
h6
{mso-style-priority:9;
mso-style-link:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 6 \0417\043D\0430\043A";
margin-top:10.0pt;
margin-right:0cm;
margin-bottom:0cm;
margin-left:0cm;
margin-bottom:.0001pt;
page-break-after:avoid;
font-size:11.0pt;
font-family:"Arial","sans-serif";
color:black;
mso-fareast-language:EN-US;
font-weight:normal;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#660000;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#003399;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
span.1
{mso-style-name:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 1 \0417\043D\0430\043A";
mso-style-priority:9;
mso-style-link:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 1";
font-family:"Arial","sans-serif";
color:black;
font-weight:bold;}
span.2
{mso-style-name:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 2 \0417\043D\0430\043A";
mso-style-priority:9;
mso-style-link:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 2";
font-family:"Arial","sans-serif";
color:black;}
span.3
{mso-style-name:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 3 \0417\043D\0430\043A";
mso-style-priority:9;
mso-style-link:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 3";
font-family:"Arial","sans-serif";
color:black;}
span.4
{mso-style-name:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 4 \0417\043D\0430\043A";
mso-style-priority:9;
mso-style-link:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 4";
font-family:"Arial","sans-serif";
color:black;}
span.5
{mso-style-name:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 5 \0417\043D\0430\043A";
mso-style-priority:9;
mso-style-link:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 5";
font-family:"Arial","sans-serif";
color:black;}
span.6
{mso-style-name:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 6 \0417\043D\0430\043A";
mso-style-priority:9;
mso-style-link:"\0417\0430\0433\043E\043B\043E\0432\043E\043A 6";
font-family:"Arial","sans-serif";
color:black;}
span.hps
{mso-style-name:hps;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:2.0cm 42.5pt 2.0cm 3.0cm;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body bgcolor=white background="cid:image001.gif@01CF5340.6A87F0E0" lang=RU link="#660000" vlink="#003399"><img src="cid:image001.gif@01CF5340.6A87F0E0" v:src="cid:image001.gif@01CF5340.6A87F0E0" v:shapes="_x0000_Mail" width=0 height=0 class=shape style='display:none;width:0;height:0'><!--[if gte mso 9]><xml>
<v:background id="_x0000_s1025" o:bwmode="white" o:targetscreensize="1024,768">
<v:fill src="cid:image001.gif@01CF5340.6A87F0E0" o:title="strbkgde" type="frame" />
</v:background></xml><![endif]--><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>Hello!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>Today there was one problem.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>Opensips stopped to process SIP messages during about 2 minutes.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>Log analyses of problem`s time period shows some “unusual” messages<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>«ERROR:core:udp_send: sendto(sock,0x7fd068403ad0,35904,0,0x7fff63d1ddd0,16): No buffer space available(105)</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>ERROR:aaa_radius:send_auth_func: radius authentication message failed with TIMEOUT</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>rc_send_server: no reply from RADIUS server unknown:1812<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>rc_ip_hostname: couldn't look up host by addr: D5AA5098<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>» <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>Opensips during call processing interacts with radius server (and there was some problem with radius server during problem`s time period). It was done for prepaid scheme (</span><span class=hps><span lang=EN style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>although</span></span><span lang=EN style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'> </span><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>not all clients use prepaid)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>More<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>During problem`s time period there were a lot of messages<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>«BYE has been sent because of dialog lifetime = 10»<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>It`s my own. Xlog (function located in local route of the opensips.cfg) generates this message if Opensips terminates dialog for some reason. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>“lifetime = 10” means that “modparam("dialog", "default_timeout", 10)” expired and there were no ACK on 200 OK. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>And ngrep shows that 200 OK had not translated to caller by Opensips during problem`s time period.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>After radius server UP ( and “rc_send_server: no reply from RADIUS server unknown:1812” and “rc_ip_hostname: couldn't look up host by addr: D5AA5098” disappeared) Opensips became work normally. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>What can it be? And how can I avoid such problem in future?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>Thank you for any help.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p></div></body></html>