purgeIdleCellConnections

About the "duplicate" state of this question: This question here was asked in Nov 2012, it contains a detailed description of the problem and has 3 answers. The question referred to as "original" was asked in Feb 2013 (3 month after this "duplicate"), has no detailed description and only 2 answers. The best of its two answers is just a link-only-answer. Why do I get this message in my console?: ``` purgeIdleCellConnections: found one to purge conn = (some object-ID) ``` When my App starts I send a message to my server. I do this with this lines of code: ``` @implementation AppStatus { NSMutableData* activeDownload; NSURLConnection* Connection; } - (id) init { self = [super init]; if (self) { activeDownload = nil; Connection = nil; } return self; } - (void)sendStatus:(NSString*)url { NSString* escaped = [url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; NSURLConnection* conn =[[NSURLConnection alloc] initWithRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:escaped]] delegate:self]; Connection = conn; NSLog(@"%s Connection=%@",__PRETTY_FUNCTION__,Connection); } ``` In the same file I have this delegate-methods: ``` - (void)connection:(NSURLConnection*)connection didReceiveData:(NSData*)data { NSLog(@"%s connection=%@",__PRETTY_FUNCTION__,connection); [activeDownload appendData:data]; } - (void)connection:(NSURLConnection*)connection didFailWithError:(NSError*)error { NSLog(@"%s connection=%@",__PRETTY_FUNCTION__,connection); activeDownload = nil; Connection = nil; //do nothing else; just ignore the error } - (void)connectionDidFinishLoading:(NSURLConnection*)connection { NSLog(@"%s Connection=%@",__PRETTY_FUNCTION__,Connection); NSString* answer = [[NSString alloc] initWithData:activeDownload encoding:NSUTF8StringEncoding]; //do something usefull with the server's answer activeDownload = nil; Connection = nil; } ``` When i run this app on a real device (not on the simulator), I get this messages in the console: ``` 2012-11-22 20:41:51.309 BookMan[376:907] -[AppStatus sendStatus:] Connection=<NSURLConnection: 0x1dd7ff40> 2012-11-22 20:41:51.929 BookMan[376:907] -[AppStatus connection:didReceiveData:] Connection=<NSURLConnection: 0x1dd7ff40> 2012-11-22 20:41:51.935 BookMan[376:907] -[AppStatus connectionDidFinishLoading:] Connection=<NSURLConnection: 0x1dd7ff40> purgeIdleCellConnections: found one to purge conn = 0x1dd8ff60 ``` The purgeIdleCellConnections-message apears about 4 or 5 seconds after the connectionDidFinishLoading-message. As you can see, the object-number of the purgeIdleCellConnections-message is not the same as the number of the connection I did create and use in my app. Maybe IMPORTANT: I do get this message only when I run the App on a real device (iPhone 4 with iOS 6.0.1). This device uses a 3G-connection, not a WIFI-connection. At the moment I have no WIFI-network to test if this happens on a WIFI-connection too. I do not get this message when I run the App on the simulator. When I change the method sendStatus: to this: ``` - (void)sendStatus:(NSString*)url { NSString* escaped = [url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; //NSURLConnection* conn =[[NSURLConnection alloc] initWithRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:escaped]] delegate:self]; //Connection = conn; NSLog(@"%s Connection=%@",__PRETTY_FUNCTION__,Connection); } ``` I get this output in the console: ``` 2012-11-22 20:45:11.927 BookMan[391:907] -[AppStatus sendStatus:] Connection=(null) ``` I do not get the purgeIdleCellConnections-message when I do not create a connection. So what does this message mean and why do I get it?: ``` purgeIdleCellConnections: found one to purge conn = (some object-ID) ```