In my android app, I get a "Too many open files" exception. When I do a lsof, I get a long (and growing) list of open pipes. However in my case, both pipe end points are in my app. Another strange thing: just before having the two pipes I always have an open socket connection.
07-05 05:22:30.790 W/TAG ( 481): me.app 481 u0_a69 79 ??? ??? ??? ??? socket:[3817]
07-05 05:22:30.790 W/TAG ( 481): me.app 481 u0_a69 80 ??? ??? ??? ??? pipe:[4583]
07-05 05:22:30.790 W/TAG ( 481): me.app 481 u0_a69 81 ??? ??? ??? ??? pipe:[4583]
07-05 05:22:30.790 W/TAG ( 481): me.app 481 u0_a69 82 ??? ??? ??? ??? socket:[4593]
07-05 05:22:30.790 W/TAG ( 481): me.app 481 u0_a69 83 ??? ??? ??? ??? pipe:[4594]
07-05 05:22:30.790 W/TAG ( 481): me.app 481 u0_a69 84 ??? ??? ??? ??? pipe:[4594]
07-05 05:22:30.790 W/TAG ( 481): me.app 481 u0_a69 85 ??? ??? ??? ??? socket:[4600]
07-05 05:22:30.790 W/TAG ( 481): me.app 481 u0_a69 86 ??? ??? ??? ??? pipe:[4601]
07-05 05:22:30.790 W/TAG ( 481): me.app 481 u0_a69 87 ??? ??? ??? ??? pipe:[4601]
I am pretty sure that I close all my processes and streams. I checked the app multiple times for that and I ran PMD and FindBugs. I use HttpUrlConnection for HTTPS communication and I am also pretty sure that I disconnect all the connections, so that they can be reused.
Has anybody any idea, what those pipes could be (or how I can find out)?
Regarding the sockets (and I don't know if that's related): When I run netstat I get very much sockets in CLOSE_WAIT state:
tcp6 0 24 ::ffff:10.83.12.3:39006 ::ffff:62.75.242.64:443 CLOSE_WAIT
tcp6 0 24 ::ffff:10.83.12.3:53782 ::ffff:62.75.242.64:443 CLOSE_WAIT
tcp6 0 24 ::ffff:10.83.12.3:49433 ::ffff:62.75.242.64:443 CLOSE_WAIT
tcp6 0 24 ::ffff:10.83.12.3:41807 ::ffff:62.75.242.64:443 CLOSE_WAIT
tcp6 0 24 ::ffff:10.83.12.3:34892 ::ffff:62.75.242.64:443 CLOSE_WAIT
tcp6 0 24 ::ffff:10.83.12.3:53105 ::ffff:62.75.242.64:443 CLOSE_WAIT
tcp6 0 24 ::ffff:10.83.12.3:44466 ::ffff:62.75.242.64:443 CLOSE_WAIT
As statet above I use HttpUrlConnection on the Android side. The server is an Apache server running PHP. The SSL certificate is valid and issued from PositiveSSL.
Could this be a network issue?
