This is a multipart message in MIME format. ------=_NextPart_000_00BE_01D1E741.42F55580 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi, I setup a breakpoint in Line 637 in bindingxmlrpc.py , which as follows: (branch:4.0; code url is: https://github.com/oVirt/vdsm/tree/ovirt-4.0) 636 def ping(self): 637 api = API.Global() 638 return api.ping() But even the vdsm is not managed by any ovirt-engine , the line 637 will be called many times, I thought the ping() function will be called only when the ovirt-engine will create connection with vdsm, so why it will be called cycle? Thank you ------=_NextPart_000_00BE_01D1E741.42F55580 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" = xmlns:o=3D"urn:schemas-microsoft-com:office:office" = xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" = xmlns=3D"http://www.w3.org/TR/REC-html40"><head><meta = http-equiv=3DContent-Type content=3D"text/html; = charset=3Dus-ascii"><meta name=3DGenerator content=3D"Microsoft Word 14 = (filtered medium)"><style><!-- /* Font Definitions */ @font-face {font-family:SimSun; panose-1:2 1 6 0 3 1 1 1 1 1;} @font-face {font-family:SimSun; panose-1:2 1 6 0 3 1 1 1 1 1;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} @font-face {font-family:SimSun; panose-1:2 1 6 0 3 1 1 1 1 1;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0cm; margin-bottom:.0001pt; text-align:justify; text-justify:inter-ideograph; font-size:10.5pt; font-family:"Calibri","sans-serif";} a:link, span.MsoHyperlink {mso-style-priority:99; color:blue; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {mso-style-priority:99; color:purple; text-decoration:underline;} span.EmailStyle17 {mso-style-type:personal-compose; font-family:"Calibri","sans-serif"; color:windowtext;} .MsoChpDefault {mso-style-type:export-only; font-family:"Calibri","sans-serif";} /* Page Definitions */ @page WordSection1 {size:612.0pt 792.0pt; margin:72.0pt 90.0pt 72.0pt 90.0pt;} div.WordSection1 {page:WordSection1;} --></style><!--[if gte mso 9]><xml> <o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" /> </xml><![endif]--><!--[if gte mso 9]><xml> <o:shapelayout v:ext=3D"edit"> <o:idmap v:ext=3D"edit" data=3D"1" /> </o:shapelayout></xml><![endif]--></head><body lang=3DZH-CN link=3Dblue = vlink=3Dpurple style=3D'text-justify-trim:punctuation'><div = class=3DWordSection1><p class=3DMsoNormal><span lang=3DEN-US>Hi, = <o:p></o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-US> I setup a = breakpoint in Line 637 in bindingxmlrpc.py , which as follows: = (branch:4.0; code url is: = https://github.com/oVirt/vdsm/tree/ovirt-4.0)<o:p></o:p></span></p><p = class=3DMsoNormal><span lang=3DEN-US>636 def = ping(self):<o:p></o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-US>637 api =3D = API.Global()<o:p></o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-US>638 return = api.ping()<o:p></o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-US><o:p> </o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-US> But even = the vdsm is not managed by any ovirt-engine , the line 637 will be = called many times, <o:p></o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-US><o:p> </o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-US> I thought = the ping() function will be called only when the ovirt-engine will = create connection with vdsm, so why it will be called = cycle?<o:p></o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-US><o:p> </o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-US>Thank you<o:p></o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-US><o:p> </o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-US><o:p> </o:p></span></p></div></body></html> ------=_NextPart_000_00BE_01D1E741.42F55580--