Error Unable To Select On Socket
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minute: Sign up Why cant select.select() catch closed socket error? up vote 2 down vote favorite A closed client socket appended into elist, but there is no exception in ex when select called. I don't known why, can you help me please. Thanks so much! r,w,ex = select.select(rlist, wlist,elist ) for s in ex: print "catch a closed socket error!" python sockets
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share|improve this question edited Aug 14 '12 at 9:50 Logard 1,343823 asked Aug 14 '12 at 9:41 nguyenngoc101 3111317 add a comment| 1 Answer 1 active oldest votes up vote 4 down vote To catch a socket being closed event you need to have the socket in rlist. When a connection is closed on the other side, select returns and denotes that the closed socket is ready for reading (i.e. it's in you r list). If you perform recv on this socket and it returns an empty list (nothing has been read), it means a connection has been closed. data = s.recv(size) if not data: # socket has been closed by peer s.close() From what I have seen, the exception list (the last parameter of select) isn't widely used. The main problem with it is that different OSes interpret this parameter differently. Sometimes it's even used only for cases that don't seem to be exceptions at all (OOB data). socket module documentation isn't specific about what that argument means, so it's generally not a good idea to rely on it: xlist: wait fo
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Corporate Leadership Newsroom Research Exchange Investor Relations Careers Legal Contact Us English 中文(简体) English select socket unix Français Deutsch Italiano 日本語 한국어 Português Español USA Site: Veritas Veritas PartnerNet VMware: Browse and select Virtual Machine fails with cannot connect on socket. http://stackoverflow.com/questions/11949631/why-cant-select-select-catch-closed-socket-error (25) Article:000082724 Publish: Article URL:http://www.veritas.com/docs/000082724 Support / Article Sign In Remember me Forgot Password? Don't have a Veritas Account? Create a Veritas Account now! Welcome First Last Your Profile Logout Sign in to Subscribe Please sign in to set up your subscription. Close Sign In Print Article Products https://www.veritas.com/support/en_US/article.000082724 Article Languages Subscribe to this Article Manage your Subscriptions Problem Using a Windows NetBackup Administration Console to manually Browse and select Virtual Machine in a policy fails with a console dialog box: Failed to get VM Server Info List: cannot connect on socket. (25) Error Message cannot connect on socket. (25) NBSL - (OID 132): 6/14/2011 12:26:36.015 nbsl 132 PID:4424 TID:5104 [PolicyQueryFacetImpl::getVMVirtualServerInfoList()#10] No. of vmVirtualServers:0(../PolicyQueryFacetImpl.cpp:678)
6/14/2011 12:26:36.015 nbsl 132 PID:4424 TID:5104 [PolicyQueryFacetImpl::getVMVirtualServerInfoList()#10] Overriding return code of getVMVirtualServerInfoSeq:-1(../PolicyQueryFacetImpl.cpp:682)
6/14/2011 12:26:36.015 nbsl 132 PID:4424 TID:5104 [NBUErrorTranslator::getErrorDetails()] NB error code: 25 NB localized Error text: cannot connect on socket(../NBUErrorTranslator.cpp:47)
6/14/2011 12:26:36.015 nbsl 132 PID:4424 TID:5104 [ExceptionManager::fillExceptionObject()] Error:PolicyQueryFacetImpl::getVMVirtualServerInfoList()#10:../PolicyQueryFacetImpl.cpp(685): errNo:25 localizedStr:cannot connect on socket additionalStr:(../ExceptionManager.cpp:94)
NBPROXY: 12:26:36.015 [5844.3608] <2> read_guest_tree: server type has to be ESX server or vApp
12:26:36.015 [5844.3608] <2> dblibFacadeImpl::getAllVMs(): bpcr_get_virtual_names_rqst returned:-1(dblibFacadeImpl.cpp:3119)
12:26:36.015 [5844.3608] <2> dblibFacadeImpl::getAllVMs(): bpcr_disconnect_rqst returns -1(dblibFacadeImpl.cpp:3125)
12:26:36.015 [5844.3608] <2> dblibFacadeImpl::getVMVirtualServerInfoSeq(): getAllVMs call failed. Return code:-1(dblibFacadeImpl.cpp:3264)
BPCD: 12:26:35.765 [1468.4860] <2> run_VMutil_
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Fri, 05 March 2010 18:16 [message #68299] sapoyol Messages: 8 Karma: 0 Good morning everyone, I like to ask you about a problem that I have with kerio winroute: Every couple of days winroute stops working and blocks every connection (VPN, LAN, WAN etc.) so I have to restart windows to make it work again. Then I search into the logs and I find this in the error log: (1013:3) Internal error: Unable to retrieve DNS server (1450). (1012:3) Internal error: Unable to retrieve routing table (1450). These errors appear a lot of times. And sometimes even restarting windows winroute doesn´t work again, so I have to reinstall winroute. I have no clue why this happens, I reinstalled windows, reinstalled winroute, but the issue remains. HP Proliant ML 150 G6 Windows Server 2003 r2 Kerio winroute 6.7.1.6399 thanks in advance. Report message to a moderator Fri, 05 March 2010 22:13 [message #68304] KursadOlmez Messages: 118 Karma: 3 Are you using any antivirus software on the server? Honestly, I didn't have an issue with KWF like yours (I mean Internal Error). But, I always have problems with KWF if HTTP Filter feature enabled antivirus (like ESET) is installed on KWF Server. Report message to a moderator Fri, 05 March 2010 23:03 [message #68305] sapoyol Messages: 8 Karma: 0 Honestly I dont think thats the problem, because I have other 6 servers with the same configuration in branch offices, I mean identical, including antivirus. And none of the others present any problem at all. By the way i´m using mcafee. Thanks anyway. Report message to a moderator Fri, 24 January 2014 09:43 [message #110090] kurtguitarist Messages: 3 Karma: 0 Dear all, I´ve been having the same trouble on server 2008 R2, with Kerio Control 7.4.2 build 5136: Unfortunately looking into Windows System errors did not bring any significant results. Just error when the guys powered off the server the hard way. Can someone please give a piece of advice as to where I should look? Thanks a lot Log: [24/Jan/2014 08:24:35] (3) Internal error: Unable to retrieve DNS server (1450). [24/Jan/2014 08:24:36] (3) Internal error: Unable to retrieve IPv6 routing table (0). [24/Jan/2014 08:24:36] (3) Internal error: Unable to retrieve DNS server (1450). [24/Jan/2014 08:24:37] (3) Internal error: Unable to retrieve DNS server (1450). [24/Jan/2014 08:24:3