{"action":"created","issue":{"url":"https://api.github.com/repos/multipath-tcp/mptcp/issues/153","repository_url":"https://api.github.com/repos/multipath-tcp/mptcp","labels_url":"https://api.github.com/repos/multipath-tcp/mptcp/issues/153/labels{/name}","comments_url":"https://api.github.com/repos/multipath-tcp/mptcp/issues/153/comments","events_url":"https://api.github.com/repos/multipath-tcp/mptcp/issues/153/events","html_url":"https://github.com/multipath-tcp/mptcp/issues/153","id":190550010,"number":153,"title":"Long-term TCP sessions & MPTCP","user":{"login":"wapsi","id":11405096,"avatar_url":"https://avatars.githubusercontent.com/u/11405096?v=3","gravatar_id":"","url":"https://api.github.com/users/wapsi","html_url":"https://github.com/wapsi","followers_url":"https://api.github.com/users/wapsi/followers","following_url":"https://api.github.com/users/wapsi/following{/other_user}","gists_url":"https://api.github.com/users/wapsi/gists{/gist_id}","starred_url":"https://api.github.com/users/wapsi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wapsi/subscriptions","organizations_url":"https://api.github.com/users/wapsi/orgs","repos_url":"https://api.github.com/users/wapsi/repos","events_url":"https://api.github.com/users/wapsi/events{/privacy}","received_events_url":"https://api.github.com/users/wapsi/received_events","type":"User","site_admin":false},"labels":[{"id":7563641,"url":"https://api.github.com/repos/multipath-tcp/mptcp/labels/enhancement","name":"enhancement","color":"84b6eb","default":true}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":9,"created_at":"2016-11-20T10:14:37Z","updated_at":"2016-11-29T06:37:33Z","closed_at":null,"body":"I'm using SSH port tunneling and MPTCP and I've noticed that after several hours or days the MPTCP stops working (traffic doesn't go thru all available interfaces / gateways anymore, it is using only one path). Restarting of this long-term / sustained SSH/TCP session fixes the issue and MPTCP \"starts to work again\".\r\n\r\nWhat could cause this? Is there any way to debug this problem? Is there any way to tell to MPTCP to lookup new paths again or something similar? I see that under /proc/<PID>/net/mptcp_net/ and /proc/<PID>/net/mptcp_fullmesh there are some stats available but is there anything like echo 1 > /proc/<PID>/net/mptcp_net/discover_paths_again like thing?\r\n\r\nMy MPTCP settings:\r\n[    0.412909] MPTCP: Stable release v0.91.2\r\nkernel.osrelease = 4.1.35.mptcp\r\nnet.ipv4.tcp_allowed_congestion_control = lia reno cubic\r\nnet.ipv4.tcp_available_congestion_control = lia reno balia wvegas cubic olia\r\nnet.ipv4.tcp_congestion_control = lia (tried other ones too but the issue remains)\r\nnet.core.wmem_max = 115343360\r\nnet.core.rmem_max = 115343360\r\nnet.ipv4.tcp_rmem = 10240 87380 115343360\r\nnet.ipv4.tcp_wmem = 10240 87380 115343360\r\nnet.mptcp.mptcp_binder_gateways = \r\nnet.mptcp.mptcp_checksum = 0\r\nnet.mptcp.mptcp_debug = 0\r\nnet.mptcp.mptcp_enabled = 1\r\nnet.mptcp.mptcp_path_manager = fullmesh\r\nnet.mptcp.mptcp_scheduler = default\r\nnet.mptcp.mptcp_syn_retries = 10\r\nnet.mptcp.mptcp_version = 1"},"comment":{"url":"https://api.github.com/repos/multipath-tcp/mptcp/issues/comments/263489162","html_url":"https://github.com/multipath-tcp/mptcp/issues/153#issuecomment-263489162","issue_url":"https://api.github.com/repos/multipath-tcp/mptcp/issues/153","id":263489162,"user":{"login":"wapsi","id":11405096,"avatar_url":"https://avatars.githubusercontent.com/u/11405096?v=3","gravatar_id":"","url":"https://api.github.com/users/wapsi","html_url":"https://github.com/wapsi","followers_url":"https://api.github.com/users/wapsi/followers","following_url":"https://api.github.com/users/wapsi/following{/other_user}","gists_url":"https://api.github.com/users/wapsi/gists{/gist_id}","starred_url":"https://api.github.com/users/wapsi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wapsi/subscriptions","organizations_url":"https://api.github.com/users/wapsi/orgs","repos_url":"https://api.github.com/users/wapsi/repos","events_url":"https://api.github.com/users/wapsi/events{/privacy}","received_events_url":"https://api.github.com/users/wapsi/received_events","type":"User","site_admin":false},"created_at":"2016-11-29T06:37:33Z","updated_at":"2016-11-29T06:37:33Z","body":"I'm not able to get valid packet-trace atm. If I try to do this with tcpdump the cap file gets so large before first subflow drops that it doesn't fit in my MPTCP router's HDD. Do you have any tips how to do this \"sensibly\"?"}}
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