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Error [-10279] Connection was dropped due to lack of network activity

Jitendra_Kansal
Product and Topic Expert
Product and Topic Expert
0 Kudos

Hello Experts,

We are working on SMP3 OData native apps development, we have been observing mobilink related error entries in SMP server logs. By looking at the logs, its not possible to predict which error entry could be related to which application/user?Can these error be ignored? Is there any solution/best practice to solve it?

SMP3 server: SP08

SMP3 mobile SDK: SP07

Device: Android, Windows, iOS

Please share your inputs. ,


Line 56515: 2015 07 28 13:12:02#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253########<6> [-10279] Connection was dropped due to lack of network activity |

Line 56517: 2015 07 28 13:14:06#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####de83a4c1-3585-11e5-8000-ce316506f68e####<11> [-10279] Connection was dropped due to lack of network activity |

Line 56518: 2015 07 28 13:16:31#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####29e52101-3586-11e5-8000-948b9ffc2d17####<4> [-10279] Connection was dropped due to lack of network activity |

Line 56525: 2015 07 28 13:21:42#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####cdf18c31-3585-11e5-8000-e4db8c169846####<7> [-10279] Connection was dropped due to lack of network activity |

Line 56526: 2015 07 28 13:25:30#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<19> [-10279] Connection was dropped due to lack of network activity |

Line 56527: 2015 07 28 13:26:41#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####c1b26821-3587-11e5-8000-af9179d12054####<30> [-10279] Connection was dropped due to lack of network activity |

Line 56528: 2015 07 28 13:27:35#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####1ba30100-3588-11e5-8000-948b9ffc2d17####<20> [-10279] Connection was dropped due to lack of network activity |

Line 56529: 2015 07 28 13:30:43#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<32> [-10279] Connection was dropped due to lack of network activity |

Line 57256: 2015 07 28 13:36:48#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####7c742901-3588-11e5-8000-948b9ffc2d17####<39> [-10279] Connection was dropped due to lack of network activity |

Line 57597: 2015 07 28 13:43:09#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####55f7c101-3589-11e5-8000-948b9ffc2d17####<69> [-10279] Connection was dropped due to lack of network activity |

Line 57598: 2015 07 28 13:46:48#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####391b0821-358a-11e5-8000-af9179d12054####<43> [-10279] Connection was dropped due to lack of network activity |


Line 57670: 2015 07 28 13:51:43#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<72> [-10279] Connection was dropped due to lack of network activity |

Line 57903: 2015 07 28 14:04:30#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<75> [-10279] Connection was dropped due to lack of network activity |

Line 57906: 2015 07 28 14:15:05#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<83> [-10279] Connection was dropped due to lack of network activity |

Line 57908: 2015 07 28 14:30:09#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<84> [-10279] Connection was dropped due to lack of network activity |

Line 57910: 2015 07 28 15:00:36#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<85> [-10279] Connection was dropped due to lack of network activity |

Line 58929: 2015 07 28 15:11:47#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<96> [-10279] Connection was dropped due to lack of network activity |

Line 58930: 2015 07 28 15:14:12#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####a6dfd091-355b-11e5-8000-b5ffff3054d6####<90> [-10279] Connection was dropped due to lack of network activity |

Line 58931: 2015 07 28 15:14:37#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####bd6cbc41-3594-11e5-8000-f64771774d64####<98> [-10279] Connection was dropped due to lack of network activity |

Line 58932: 2015 07 28 15:16:19#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####bc9b50d1-34f7-11e5-8000-90636f5702f7####<91> [-10279] Connection was dropped due to lack of network activity |

Line 58933: 2015 07 28 15:18:48#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<105> [-10279] Connection was dropped due to lack of network activity |

Line 58934: 2015 07 28 15:18:52#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####0bbd3071-34f8-11e5-8000-9d2fccc52f61####<106> [-10279] Connection was dropped due to lack of network activity |

Line 58935: 2015 07 28 15:25:13#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####89718440-3597-11e5-8000-f64771774d64####<109> [-10279] Connection was dropped due to lack of network activity |

Line 58993: 2015 07 28 15:39:50#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<111> [-10279] Connection was dropped due to lack of network activity |

Line 58994: 2015 07 28 15:45:44#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<112> [-10279] Connection was dropped due to lack of network activity |

Line 59971: 2015 07 28 16:01:31#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<113> [-10279] Connection was dropped due to lack of network activity |

Line 59972: 2015 07 28 16:08:19#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<114> [-10279] Connection was dropped due to lack of network activity |

Line 59973: 2015 07 28 16:08:26#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<121> [-10279] Connection was dropped due to lack of network activity |

Regards,

JK

Accepted Solutions (0)

Answers (4)

Answers (4)

Jitendra_Kansal
Product and Topic Expert
Product and Topic Expert
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Hello Kevin, Andreas

Thanks for your response.

Server has been upgraded from SP06 to SP08

Underlying DB:Oracle (yes external)

I collected latest logs between two mobilink error messages. These mobilink error message are not specific to particular appid.


2015 08 11 10:18:25#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<487> [-10279] Connection was dropped due to lack of network activity |

2015 08 11 10:18:43#+00#ERROR#com.sap.mobile.platform.server.proxy.core.handler.DirectProxy##nosec_identity#Thread-138##0c70f95b-3fe8-494a-8f70-20ca923ad8a7##dc1d5270-4062-11e5-8000-e34c3578766b#RequestResponse#500##Response code from backend is 500 for request null |

.

.

.

.

2015 08 11 10:18:51#+00#ERROR#com.sap.mobile.platform.server.proxy.core.handler.DirectProxy##nosec_identity#Thread-138##0c70f95b-3fe8-494a-8f70-20ca923ad8a7#<<appid1>>#8a3de301-406e-11e5-8000-d3b929d052b3#RequestResponse#500##Response code from backend is 500 for request null |

2015 08 11 10:18:51#+00#ERROR#com.sap.mobile.platform.server.proxy.core.handler.DirectProxy##nosec_identity#Thread-138##0c70f95b-3fe8-494a-8f70-20ca923ad8a7#<<appid1>>#8a3de301-406e-11e5-8000-d3b929d052b3#RequestResponse#404##Response code from backend is 404 for request null |

2015 08 11

2015 08 11 10:18:53#+00#ERROR#com.sap.mobile.platform.server.proxy.core.handler.DirectProxy##nosec_identity#Thread-138##0c70f95b-3fe8-494a-8f70-20ca923ad8a7#<<appid1>>#8a3de301-406e-11e5-8000-d3b929d052b3#RequestResponse#500##Response code from backend is 500 for request null |

2015 08 11 10:20:08#+00#ERROR#com.sap.mobile.platform.server.online.filter.application.ApplicationConnectionHelper###http-bio-8081-exec-16##47294f81-ebe1-4d0e-95ac-44426d6e92b4######Backend connection <<appid2>> is not mapped for this application configuration::47294f81-ebe1-4d0e-95ac-44426d6e92b4 |

2015 08 11 10:21:29#+00#ERROR#com.sap.mobile.platform.server.online.filter.application.ApplicationConnectionHelper###http-bio-8081-exec-13##47294f81-ebe1-4d0e-95ac-44426d6e92b4######Backend connection <<appid2>> is not mapped for this application configuration::47294f81-ebe1-4d0e-95ac-44426d6e92b4 |

2015 08 11 10:22:33#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####a9166be1-406d-11e5-8000-e36a5aebdf2e####<488> [-10279] Connection was dropped due to lack of network activity |

2015 08 11 10:22:34#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####4599e27a-1cf4-46c1-a6ba-000000000000####<501> [-10279] Connection was dropped due to lack of network activity |

2015 08 11 10:23:40#+00#ERROR#com.sap.mobile.platform.server.online.filter.application.ApplicationConnectionHelper###http-bio-8081-exec-20##47294f81-ebe1-4d0e-95ac-44426d6e92b4######Backend connection <<appid2>> is not mapped for this application configuration::47294f81-ebe1-4d0e-95ac-44426d6e92b4 |

2015 08 11 10:23:42#+00#ERROR#com.sap.mobile.platform.server.mobilink.NativeLogger###Thread-253####854c0481-406e-11e5-8000-ea606b473f19####<505> [-10279] Connection was dropped due to lack of network activity |

2015 08 11 10:25:32#+00#ERROR#com.sap.mobile.platform.server.online.filter.application.ApplicationConnectionHelper##<<username>>#Thread-161##c4d6cf51-44cf-4f10-af0c-4481eb6dfabe###RequestResponse#200##Application connection is not found::c4d6cf51-44cf-4f10-af0c-4481eb6dfabe |

2015 08 11 10:25:32#+00#ERROR#com.sap.mobile.platform.server.mobilink.SessionLogger##<<user>>#Thread-161##c4d6cf51-44cf-4f10-af0c-4481eb6dfabe#<<appid2>>#626e3c81-406e-11e5-8000-ea606b473f19#RequestResponse#404##[-100027] An error occurred while processing request "Cities" (https://server:port/....//Cities?$top=50) com.sap.odata.offline.util.MODataException: [-100027] An error occurred while processing request "Cities" (https://server:port/.../Cities?$top=50)

Would you like to share more inputs by looking at these logs?

Regards,

JK

andreas_wegmann
Employee
Employee
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In my opinion there is a general issue with the connection to the backend which is not reachable for unknown reason or where the client request URL is not correct and can't find the resources.
A 500 error might be caused by a backend refusing connections or a "man-in-the-middle" which is preventing the traffic to go through.
Did you track the connection with wireshark and/or Fiddler?
KR,
Andreas

Kevin_SAP
Advisor
Advisor
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I find the error "Response code from backend is 500 for request null" interesting.  I would try and trace that communication to see what is being issued to backend server.

Also:

10:25:32#+00#ERROR#com.sap.mobile.platform.server.mobilink.SessionLogger##<<user>>#Thread-161##c4d6cf51-44cf-4f10-af0c-4481eb6dfabe#<<appid2>>#626e3c81-406e-11e5-8000-ea606b473f19#RequestResponse#404##[-100027] An error occurred while processing request "Cities" (https://server:port/....//Cities?$top=50)

There is either a bad request going to backend or backend is having issues.

0 Kudos

JK,


Any luck with this error message? I actually see an intermittent error opening the online store on the client side (it only shows on opening the application post login).
Once I clear the error message and try again, the online store opens as expected.

Regards,

Aditya Tagat

andreas_wegmann
Employee
Employee
0 Kudos

Is that an upgraded server from a version prior to 3.0 SP06?
What is the underlying database? Is it still Derby or SQLA?
Is it an external database?
I agree with Kevin that these message might not have any impact.

KR Andreas

Kevin_SAP
Advisor
Advisor
0 Kudos

Is there any application errors or just these messages?  This could just be a logic issue in client application not ending cleanly and have no real impact.

Regards,

Kevin

kirankola
Advisor
Advisor
0 Kudos

Hi JK, Did you explore networkcheck-tool, it should catch these type of errors: http://scn.sap.com/community/mobile/blog/2015/01/06/networkcheck-utility. Unfortunately if they are VMs, rarely happens. Also check event logs for more information.

Regards,

Kiran

Jitendra_Kansal
Product and Topic Expert
Product and Topic Expert
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Hi Kiran,

I couldn't get much help from this tool. There is only one instance of SMP we are testing this application.

Regards,

JK