When running docker 1.2.0, after a variable amount of time (~0.5h typically), docker starts hanging on certain tasks.
docker ps in particular does not complete after this issue appears. Here's an strace of the server and client sides:
Client
I waited about 45 seconds before killing the straces.
write(3, "GET /v1.14/containers/json HTTP/"..., 123) = 123
epoll_wait(4, {{EPOLLOUT, {u32=1591284800, u64=140038999970880}}}, 128, 0) = 1
epoll_wait(4, {{EPOLLOUT, {u32=1591284800, u64=140038999970880}}}, 128, -1) = 1
epoll_wait(4, ^CProcess 8835 detached
Server
There were no further mentions of FD 206 after this excerpt.
[pid 10608] 16:45:54.500386 <... accept4 resumed> {sa_family=AF_LOCAL, NULL}, [2], SOCK_CLOEXEC|SOCK_NONBLOCK) = 206 <0.000013>
[pid 10608] 16:45:54.500407 epoll_ctl(7, EPOLL_CTL_ADD, 206, {EPOLLIN|EPOLLOUT|EPOLLRDHUP|EPOLLET, {u32=940253712, u64=140064118743568}}) = 0 <0.000010>
[pid 10608] 16:45:54.500437 getsockname(206, {sa_family=AF_LOCAL, sun_path="/var/run/docker.sock"}, [23]) = 0 <0.000007>
[pid 10579] 16:45:54.500468 <... select resumed> ) = 0 (Timeout) <0.000086>
[pid 10608] 16:45:54.500476 accept4(6, <unfinished ...>
[pid 10579] 16:45:54.500484 select(0, NULL, NULL, NULL, {0, 20} <unfinished ...>
[pid 10608] 16:45:54.500493 <... accept4 resumed> 0xc2080b97a8, [112], SOCK_CLOEXEC|SOCK_NONBLOCK) = -1 EAGAIN (Resource temporarily unavailable) <0.000012>
[pid 10608] 16:45:54.500520 read(206, "GET /v1.14/containers/json HTTP/"..., 4096) = 123 <0.000011>
[pid 10579] 16:45:54.500570 <... select resumed> ) = 0 (Timeout) <0.000080>
[pid 10579] 16:45:54.500582 select(0, NULL, NULL, NULL, {0, 20} <unfinished ...>
[pid 10608] 16:45:54.500645 write(1, "[info] GET /v1.14/containers/jso"..., 34) = 34 <0.000013>
We encounter this problem with docker 1.2.0, but not docker 1.0.0, on ubuntu:14.04 with both 3.13 and 3.16 kernels.
When running docker 1.2.0, after a variable amount of time (~0.5h typically), docker starts hanging on certain tasks.
docker psin particular does not complete after this issue appears. Here's an strace of the server and client sides:Client
I waited about 45 seconds before killing the straces.
Server
There were no further mentions of FD 206 after this excerpt.
We encounter this problem with docker 1.2.0, but not docker 1.0.0, on ubuntu:14.04 with both 3.13 and 3.16 kernels.